./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/bigshot_s.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_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/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_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/bigshot_s.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/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_f85507b2-21ee-4eec-9124-bd20d0ae59f0/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 4d8c741fd238f074816319de9a9bd5d97cd9b35eb7f53a276be973ea0c31ecbe --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:19:40,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:19:40,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:19:40,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:19:40,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:19:40,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:19:40,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:19:40,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:19:40,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:19:40,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:19:40,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:19:40,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:19:40,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:19:40,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:19:40,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:19:40,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:19:40,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:19:40,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:19:40,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:19:40,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:19:40,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:19:40,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:19:40,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:19:40,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:19:40,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:19:40,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:19:40,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:19:40,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:19:40,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:19:40,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:19:40,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:19:40,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:19:40,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:19:40,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:19:40,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:19:40,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:19:40,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:19:40,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:19:40,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:19:40,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:19:40,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:19:40,723 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:19:40,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:19:40,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:19:40,737 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:19:40,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:19:40,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:19:40,738 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:19:40,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:19:40,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:19:40,739 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:19:40,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:19:40,739 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:19:40,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:19:40,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:19:40,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:19:40,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:19:40,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:19:40,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:19:40,740 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:19:40,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:19:40,740 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:19:40,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:19:40,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:19:40,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:19:40,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:19:40,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:19:40,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:19:40,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:19:40,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:19:40,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:19:40,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:19:40,742 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:19:40,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:19:40,743 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:19:40,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:19:40,743 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:19:40,743 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_f85507b2-21ee-4eec-9124-bd20d0ae59f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d8c741fd238f074816319de9a9bd5d97cd9b35eb7f53a276be973ea0c31ecbe [2022-12-13 13:19:40,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:19:40,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:19:40,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:19:40,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:19:40,926 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:19:40,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/bigshot_s.i [2022-12-13 13:19:43,526 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:19:43,775 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:19:43,776 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/sv-benchmarks/c/pthread/bigshot_s.i [2022-12-13 13:19:43,789 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/data/683679835/5937566978e542aa9115bbce5cc3d3c6/FLAGccef55b82 [2022-12-13 13:19:44,082 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/data/683679835/5937566978e542aa9115bbce5cc3d3c6 [2022-12-13 13:19:44,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:19:44,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:19:44,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:19:44,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:19:44,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:19:44,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8cdf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44, skipping insertion in model container [2022-12-13 13:19:44,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:19:44,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:19:44,438 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_f85507b2-21ee-4eec-9124-bd20d0ae59f0/sv-benchmarks/c/pthread/bigshot_s.i[55202,55215] [2022-12-13 13:19:44,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:19:44,455 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:19:44,480 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_f85507b2-21ee-4eec-9124-bd20d0ae59f0/sv-benchmarks/c/pthread/bigshot_s.i[55202,55215] [2022-12-13 13:19:44,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:19:44,523 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:19:44,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44 WrapperNode [2022-12-13 13:19:44,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:19:44,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:19:44,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:19:44,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:19:44,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,556 INFO L138 Inliner]: procedures = 323, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2022-12-13 13:19:44,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:19:44,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:19:44,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:19:44,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:19:44,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,573 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:19:44,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:19:44,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:19:44,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:19:44,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (1/1) ... [2022-12-13 13:19:44,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:19:44,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:19:44,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:19:44,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:19:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:19:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:19:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 13:19:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:19:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 13:19:44,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 13:19:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 13:19:44,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 13:19:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:19:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:19:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:19:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:19:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:19:44,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:19:44,651 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:19:44,758 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:19:44,760 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:19:44,905 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:19:44,912 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:19:44,912 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:19:44,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:19:44 BoogieIcfgContainer [2022-12-13 13:19:44,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:19:44,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:19:44,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:19:44,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:19:44,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:19:44" (1/3) ... [2022-12-13 13:19:44,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ff8c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:19:44, skipping insertion in model container [2022-12-13 13:19:44,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:19:44" (2/3) ... [2022-12-13 13:19:44,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ff8c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:19:44, skipping insertion in model container [2022-12-13 13:19:44,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:19:44" (3/3) ... [2022-12-13 13:19:44,922 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s.i [2022-12-13 13:19:44,931 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:19:44,941 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:19:44,941 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:19:44,941 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:19:45,004 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 13:19:45,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 95 transitions, 206 flow [2022-12-13 13:19:45,082 INFO L130 PetriNetUnfolder]: 5/93 cut-off events. [2022-12-13 13:19:45,082 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:19:45,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 5/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-12-13 13:19:45,086 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 95 transitions, 206 flow [2022-12-13 13:19:45,090 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 79 transitions, 170 flow [2022-12-13 13:19:45,094 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:19:45,104 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 79 transitions, 170 flow [2022-12-13 13:19:45,107 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 79 transitions, 170 flow [2022-12-13 13:19:45,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 170 flow [2022-12-13 13:19:45,123 INFO L130 PetriNetUnfolder]: 4/79 cut-off events. [2022-12-13 13:19:45,123 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:19:45,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 79 events. 4/79 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-12-13 13:19:45,125 INFO L119 LiptonReduction]: Number of co-enabled transitions 156 [2022-12-13 13:19:47,394 INFO L134 LiptonReduction]: Checked pairs total: 196 [2022-12-13 13:19:47,395 INFO L136 LiptonReduction]: Total number of compositions: 75 [2022-12-13 13:19:47,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:19:47,414 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;@64b0a75, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:19:47,414 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 13:19:47,418 INFO L130 PetriNetUnfolder]: 2/13 cut-off events. [2022-12-13 13:19:47,418 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:19:47,419 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:19:47,419 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:19:47,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 13:19:47,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:19:47,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1039106989, now seen corresponding path program 1 times [2022-12-13 13:19:47,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:19:47,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604283678] [2022-12-13 13:19:47,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:19:47,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:19:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:19:47,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:19:47,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604283678] [2022-12-13 13:19:47,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604283678] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:19:47,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:19:47,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:19:47,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207827952] [2022-12-13 13:19:47,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:19:47,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:19:47,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:19:47,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:19:47,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:19:47,651 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 170 [2022-12-13 13:19:47,653 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 14 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:47,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:19:47,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 170 [2022-12-13 13:19:47,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:19:47,688 INFO L130 PetriNetUnfolder]: 5/20 cut-off events. [2022-12-13 13:19:47,688 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:19:47,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 20 events. 5/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 2 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 29. Up to 17 conditions per place. [2022-12-13 13:19:47,690 INFO L137 encePairwiseOnDemand]: 168/170 looper letters, 13 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2022-12-13 13:19:47,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 14 transitions, 68 flow [2022-12-13 13:19:47,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:19:47,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:19:47,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2022-12-13 13:19:47,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2022-12-13 13:19:47,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2022-12-13 13:19:47,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2022-12-13 13:19:47,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:19:47,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2022-12-13 13:19:47,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:47,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:47,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:47,711 INFO L175 Difference]: Start difference. First operand has 19 places, 14 transitions, 40 flow. Second operand 3 states and 270 transitions. [2022-12-13 13:19:47,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 14 transitions, 68 flow [2022-12-13 13:19:47,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 14 transitions, 60 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 13:19:47,714 INFO L231 Difference]: Finished difference. Result has 17 places, 13 transitions, 32 flow [2022-12-13 13:19:47,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=17, PETRI_TRANSITIONS=13} [2022-12-13 13:19:47,718 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, -2 predicate places. [2022-12-13 13:19:47,718 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 13 transitions, 32 flow [2022-12-13 13:19:47,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:47,718 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:19:47,718 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:19:47,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:19:47,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 13:19:47,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:19:47,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2144513575, now seen corresponding path program 1 times [2022-12-13 13:19:47,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:19:47,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108093663] [2022-12-13 13:19:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:19:47,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:19:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:19:48,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:19:48,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108093663] [2022-12-13 13:19:48,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108093663] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:19:48,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:19:48,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:19:48,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012288706] [2022-12-13 13:19:48,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:19:48,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:19:48,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:19:48,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:19:48,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:19:48,142 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 170 [2022-12-13 13:19:48,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:48,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:19:48,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 170 [2022-12-13 13:19:48,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:19:48,185 INFO L130 PetriNetUnfolder]: 9/28 cut-off events. [2022-12-13 13:19:48,186 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:19:48,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 28 events. 9/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 2 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 45. Up to 13 conditions per place. [2022-12-13 13:19:48,186 INFO L137 encePairwiseOnDemand]: 166/170 looper letters, 13 selfloop transitions, 5 changer transitions 0/18 dead transitions. [2022-12-13 13:19:48,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 18 transitions, 78 flow [2022-12-13 13:19:48,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:19:48,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:19:48,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 323 transitions. [2022-12-13 13:19:48,188 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.475 [2022-12-13 13:19:48,188 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 323 transitions. [2022-12-13 13:19:48,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 323 transitions. [2022-12-13 13:19:48,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:19:48,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 323 transitions. [2022-12-13 13:19:48,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:48,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:48,191 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:48,191 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 4 states and 323 transitions. [2022-12-13 13:19:48,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 18 transitions, 78 flow [2022-12-13 13:19:48,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 18 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:19:48,192 INFO L231 Difference]: Finished difference. Result has 21 places, 16 transitions, 60 flow [2022-12-13 13:19:48,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=21, PETRI_TRANSITIONS=16} [2022-12-13 13:19:48,193 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2022-12-13 13:19:48,193 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 16 transitions, 60 flow [2022-12-13 13:19:48,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:48,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:19:48,193 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:19:48,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:19:48,194 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 13:19:48,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:19:48,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2054852026, now seen corresponding path program 1 times [2022-12-13 13:19:48,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:19:48,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373912807] [2022-12-13 13:19:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:19:48,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:19:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:48,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:19:48,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:19:48,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373912807] [2022-12-13 13:19:48,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373912807] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:19:48,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820222328] [2022-12-13 13:19:48,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:19:48,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:19:48,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:19:48,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:19:48,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:19:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:48,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-13 13:19:48,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:19:48,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:19:48,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:19:48,626 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-13 13:19:48,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-12-13 13:19:48,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:19:48,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:19:48,758 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 13:19:48,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 18 [2022-12-13 13:19:48,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:19:48,812 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 13:19:48,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-13 13:19:48,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:19:48,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:19:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:19:49,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820222328] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:19:49,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:19:49,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 17 [2022-12-13 13:19:49,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738386443] [2022-12-13 13:19:49,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:19:49,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 13:19:49,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:19:49,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 13:19:49,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-12-13 13:19:50,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 170 [2022-12-13 13:19:50,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 16 transitions, 60 flow. Second operand has 18 states, 18 states have (on average 72.0) internal successors, (1296), 18 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 13:19:50,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:19:50,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 170 [2022-12-13 13:19:50,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:19:50,493 INFO L130 PetriNetUnfolder]: 7/25 cut-off events. [2022-12-13 13:19:50,493 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 13:19:50,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 25 events. 7/25 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 1 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 57. Up to 10 conditions per place. [2022-12-13 13:19:50,494 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2022-12-13 13:19:50,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 93 flow [2022-12-13 13:19:50,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:19:50,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:19:50,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2022-12-13 13:19:50,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4303921568627451 [2022-12-13 13:19:50,497 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 439 transitions. [2022-12-13 13:19:50,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 439 transitions. [2022-12-13 13:19:50,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:19:50,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 439 transitions. [2022-12-13 13:19:50,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:50,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:50,505 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:50,505 INFO L175 Difference]: Start difference. First operand has 21 places, 16 transitions, 60 flow. Second operand 6 states and 439 transitions. [2022-12-13 13:19:50,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 93 flow [2022-12-13 13:19:50,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 91 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-13 13:19:50,506 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2022-12-13 13:19:50,506 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2022-12-13 13:19:50,506 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 6 predicate places. [2022-12-13 13:19:50,506 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2022-12-13 13:19:50,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 72.0) internal successors, (1296), 18 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 13:19:50,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 13:19:50,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 13:19:50,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 13:19:50,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:19:50,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:19:50,711 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 13:19:50,720 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:19:50,720 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:19:50,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:19:50 BasicIcfg [2022-12-13 13:19:50,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:19:50,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:19:50,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:19:50,732 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:19:50,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:19:44" (3/4) ... [2022-12-13 13:19:50,741 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:19:50,754 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 13:19:50,754 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 13:19:50,759 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 13:19:50,759 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-13 13:19:50,759 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 13:19:50,759 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:19:50,759 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:19:50,785 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:19:50,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:19:50,786 INFO L158 Benchmark]: Toolchain (without parser) took 6700.55ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 92.7MB in the beginning and 111.3MB in the end (delta: -18.6MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-12-13 13:19:50,786 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:19:50,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.92ms. Allocated memory is still 123.7MB. Free memory was 92.4MB in the beginning and 60.2MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 13:19:50,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.31ms. Allocated memory is still 123.7MB. Free memory was 60.2MB in the beginning and 57.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:19:50,787 INFO L158 Benchmark]: Boogie Preprocessor took 19.12ms. Allocated memory is still 123.7MB. Free memory was 57.8MB in the beginning and 56.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:19:50,787 INFO L158 Benchmark]: RCFGBuilder took 337.31ms. Allocated memory is still 123.7MB. Free memory was 56.1MB in the beginning and 86.2MB in the end (delta: -30.1MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-12-13 13:19:50,787 INFO L158 Benchmark]: TraceAbstraction took 5814.54ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 85.5MB in the beginning and 113.6MB in the end (delta: -28.1MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2022-12-13 13:19:50,788 INFO L158 Benchmark]: Witness Printer took 53.62ms. Allocated memory is still 148.9MB. Free memory was 113.6MB in the beginning and 111.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:19:50,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.92ms. Allocated memory is still 123.7MB. Free memory was 92.4MB in the beginning and 60.2MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.31ms. Allocated memory is still 123.7MB. Free memory was 60.2MB in the beginning and 57.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.12ms. Allocated memory is still 123.7MB. Free memory was 57.8MB in the beginning and 56.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 337.31ms. Allocated memory is still 123.7MB. Free memory was 56.1MB in the beginning and 86.2MB in the end (delta: -30.1MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5814.54ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 85.5MB in the beginning and 113.6MB in the end (delta: -28.1MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. * Witness Printer took 53.62ms. Allocated memory is still 148.9MB. Free memory was 113.6MB in the beginning and 111.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 82 PlacesBefore, 19 PlacesAfterwards, 79 TransitionsBefore, 14 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 196 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 154, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 95, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 154, independent: 54, independent conditional: 0, independent unconditional: 54, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 95, unknown conditional: 0, unknown unconditional: 95] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1107]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 118 locations, 3 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: 5.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 597 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 506 mSDsluCounter, 718 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 718 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2296 IncrementalHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 0 mSDtfsCounter, 2296 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=2, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 57 ConstructedInterpolants, 5 QuantifiedInterpolants, 704 SizeOfPredicates, 9 NumberOfNonLiveVariables, 186 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 13:19:50,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85507b2-21ee-4eec-9124-bd20d0ae59f0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE