./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87e1a1d3acb3ee9b7a4a97eb7b14df31d5b38b7566b1218cea0dabfe5ec8ddbd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:31:45,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:31:45,207 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-23 20:31:45,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:31:45,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:31:45,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:31:45,252 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:31:45,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:31:45,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:31:45,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:31:45,259 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:31:45,260 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:31:45,260 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:31:45,262 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:31:45,262 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:31:45,263 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:31:45,263 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:31:45,264 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:31:45,264 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:31:45,265 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:31:45,265 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:31:45,266 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:31:45,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:31:45,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:31:45,268 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:31:45,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:31:45,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:31:45,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:31:45,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:31:45,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:31:45,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:31:45,272 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:31:45,273 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:31:45,273 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:31:45,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:31:45,273 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:31:45,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:31:45,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:31:45,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:31:45,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:31:45,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:31:45,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:31:45,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:31:45,276 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:31:45,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:31:45,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:31:45,277 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:31:45,278 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:31:45,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:31:45,278 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87e1a1d3acb3ee9b7a4a97eb7b14df31d5b38b7566b1218cea0dabfe5ec8ddbd [2023-11-23 20:31:45,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:31:45,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:31:45,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:31:45,622 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:31:45,622 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:31:45,624 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2023-11-23 20:31:48,791 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:31:49,030 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:31:49,031 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2023-11-23 20:31:49,040 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/data/aaf7ae9bf/24e490120bc24759839604b6625c0019/FLAGfa60eeb4f [2023-11-23 20:31:49,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/data/aaf7ae9bf/24e490120bc24759839604b6625c0019 [2023-11-23 20:31:49,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:31:49,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:31:49,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:31:49,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:31:49,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:31:49,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26939568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49, skipping insertion in model container [2023-11-23 20:31:49,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,113 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:31:49,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:31:49,424 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:31:49,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:31:49,465 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:31:49,465 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:31:49,473 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:31:49,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49 WrapperNode [2023-11-23 20:31:49,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:31:49,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:31:49,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:31:49,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:31:49,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,525 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2023-11-23 20:31:49,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:31:49,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:31:49,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:31:49,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:31:49,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,548 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,554 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:31:49,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:31:49,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:31:49,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:31:49,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (1/1) ... [2023-11-23 20:31:49,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:31:49,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:31:49,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:31:49,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:31:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:31:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 20:31:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 20:31:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 20:31:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 20:31:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:31:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:31:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:31:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 20:31:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 20:31:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:31:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:31:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:31:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:31:49,673 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 20:31:49,819 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:31:49,822 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:31:50,057 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:31:50,308 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:31:50,309 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:31:50,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:31:50 BoogieIcfgContainer [2023-11-23 20:31:50,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:31:50,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:31:50,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:31:50,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:31:50,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:31:49" (1/3) ... [2023-11-23 20:31:50,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f796610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:31:50, skipping insertion in model container [2023-11-23 20:31:50,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:31:49" (2/3) ... [2023-11-23 20:31:50,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f796610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:31:50, skipping insertion in model container [2023-11-23 20:31:50,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:31:50" (3/3) ... [2023-11-23 20:31:50,319 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-nonblocking-counter-alt2.wvr.c [2023-11-23 20:31:50,333 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 20:31:50,345 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:31:50,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-11-23 20:31:50,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f796610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:31:50, skipping insertion in model container [2023-11-23 20:31:50,347 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:31:50,350 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:31:50,350 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:31:50,350 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:31:50,351 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:31:50" (3/3) ... [2023-11-23 20:31:50,354 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:31:50,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-23 20:31:50,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-23 20:31:50,370 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2023-11-23 20:31:50,370 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-23 20:31:50,371 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 20:31:50,371 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 20:31:50,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:31:50,490 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:31:50,491 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:31:50,494 INFO L158 Benchmark]: Toolchain (without parser) took 1420.76ms. Allocated memory is still 127.9MB. Free memory was 83.8MB in the beginning and 56.6MB in the end (delta: 27.2MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2023-11-23 20:31:50,494 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 72.7MB in the end (delta: 52.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:31:50,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.34ms. Allocated memory is still 127.9MB. Free memory was 83.8MB in the beginning and 92.9MB in the end (delta: -9.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:31:50,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.94ms. Allocated memory is still 127.9MB. Free memory was 92.9MB in the beginning and 91.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:31:50,499 INFO L158 Benchmark]: Boogie Preprocessor took 37.87ms. Allocated memory is still 127.9MB. Free memory was 91.4MB in the beginning and 90.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:31:50,499 INFO L158 Benchmark]: RCFGBuilder took 744.54ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 64.1MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 20:31:50,500 INFO L158 Benchmark]: TraceAbstraction took 34.79ms. Allocated memory is still 127.9MB. Free memory was 62.9MB in the beginning and 61.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:31:50,500 INFO L158 Benchmark]: Witness Printer took 140.89ms. Allocated memory is still 127.9MB. Free memory was 60.8MB in the beginning and 56.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:31:50,506 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 72.7MB in the end (delta: 52.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.34ms. Allocated memory is still 127.9MB. Free memory was 83.8MB in the beginning and 92.9MB in the end (delta: -9.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.94ms. Allocated memory is still 127.9MB. Free memory was 92.9MB in the beginning and 91.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.87ms. Allocated memory is still 127.9MB. Free memory was 91.4MB in the beginning and 90.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 744.54ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 64.1MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 34.79ms. Allocated memory is still 127.9MB. Free memory was 62.9MB in the beginning and 61.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 140.89ms. Allocated memory is still 127.9MB. Free memory was 60.8MB in the beginning and 56.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:31:50,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362abad6-ac40-4f47-9f0b-6569b8b42b63/bin/utaipan-verify-mE87zJ7Ire/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