./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i --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_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33eb4dcd0a621d6c4bb6626c0e74463917de75952c777f271b8d23f0dedf14cb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:37:09,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:37:09,829 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 21:37:09,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:37:09,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:37:09,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:37:09,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:37:09,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:37:09,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:37:09,904 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:37:09,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:37:09,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:37:09,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:37:09,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:37:09,909 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:37:09,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:37:09,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:37:09,911 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:37:09,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:37:09,912 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:37:09,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:37:09,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:37:09,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:37:09,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:37:09,914 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:37:09,915 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:37:09,915 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:37:09,916 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:37:09,916 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:37:09,916 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:37:09,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:37:09,917 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:37:09,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:37:09,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:37:09,918 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:37:09,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:37:09,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:37:09,919 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:37:09,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:37:09,920 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:37:09,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:37:09,920 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:37:09,920 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:37:09,921 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:37:09,921 INFO L153 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_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33eb4dcd0a621d6c4bb6626c0e74463917de75952c777f271b8d23f0dedf14cb [2023-11-23 21:37:10,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:37:10,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:37:10,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:37:10,311 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:37:10,311 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:37:10,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i [2023-11-23 21:37:13,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:37:14,352 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:37:14,353 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i [2023-11-23 21:37:14,398 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/data/d9dc1262f/181cd91a4f6241f8ac8baeabc85ebbce/FLAGd661a315a [2023-11-23 21:37:14,421 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/data/d9dc1262f/181cd91a4f6241f8ac8baeabc85ebbce [2023-11-23 21:37:14,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:37:14,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:37:14,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:14,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:37:14,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:37:14,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:14" (1/1) ... [2023-11-23 21:37:14,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df2a413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:14, skipping insertion in model container [2023-11-23 21:37:14,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:14" (1/1) ... [2023-11-23 21:37:14,532 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:37:15,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:15,184 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:37:15,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:15,333 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:37:15,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15 WrapperNode [2023-11-23 21:37:15,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:15,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:15,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:37:15,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:37:15,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,419 INFO L138 Inliner]: procedures = 264, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-23 21:37:15,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:15,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:37:15,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:37:15,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:37:15,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,457 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,471 INFO L189 HeapSplitter]: Split 12 memory accesses to 4 slices as follows [5, 3, 2, 2] [2023-11-23 21:37:15,471 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,482 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:37:15,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:37:15,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:37:15,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:37:15,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (1/1) ... [2023-11-23 21:37:15,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:37:15,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:15,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:15,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:37:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:37:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:37:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 21:37:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 21:37:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 21:37:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 21:37:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 21:37:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 21:37:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 21:37:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 21:37:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 21:37:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 21:37:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:37:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-23 21:37:15,586 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-23 21:37:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:37:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 21:37:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 21:37:15,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 21:37:15,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:37:15,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:37:15,589 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:37:15,793 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:37:15,796 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:37:16,008 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:37:16,225 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:37:16,225 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:37:16,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:16 BoogieIcfgContainer [2023-11-23 21:37:16,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:37:16,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:37:16,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:37:16,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:37:16,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:37:14" (1/3) ... [2023-11-23 21:37:16,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e71a432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:37:16, skipping insertion in model container [2023-11-23 21:37:16,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:15" (2/3) ... [2023-11-23 21:37:16,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e71a432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:37:16, skipping insertion in model container [2023-11-23 21:37:16,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:16" (3/3) ... [2023-11-23 21:37:16,239 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46a-escape_nr.i [2023-11-23 21:37:16,252 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:37:16,265 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:37:16,265 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-23 21:37:16,266 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:37:16,335 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-23 21:37:16,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 53 flow [2023-11-23 21:37:16,435 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-23 21:37:16,436 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 21:37:16,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 22 events. 0/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-23 21:37:16,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 53 flow [2023-11-23 21:37:16,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2023-11-23 21:37:16,456 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:37:16,465 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=LoopHeads, 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;@5d558b50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:37:16,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-23 21:37:16,491 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 21:37:16,494 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-23 21:37:16,495 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:37:16,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:37:16,496 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:37:16,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:37:16,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:16,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1340238870, now seen corresponding path program 1 times [2023-11-23 21:37:16,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:16,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972551988] [2023-11-23 21:37:16,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:16,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:17,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:17,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972551988] [2023-11-23 21:37:17,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972551988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:17,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:17,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:17,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458314541] [2023-11-23 21:37:17,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:17,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:17,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:17,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:17,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:17,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2023-11-23 21:37:17,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-23 21:37:17,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:37:17,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2023-11-23 21:37:17,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:37:17,428 INFO L124 PetriNetUnfolderBase]: 42/118 cut-off events. [2023-11-23 21:37:17,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:37:17,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 118 events. 42/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 405 event pairs, 30 based on Foata normal form. 7/114 useless extension candidates. Maximal degree in co-relation 213. Up to 73 conditions per place. [2023-11-23 21:37:17,437 INFO L140 encePairwiseOnDemand]: 19/23 looper letters, 18 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2023-11-23 21:37:17,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 25 transitions, 95 flow [2023-11-23 21:37:17,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:17,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-23 21:37:17,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2023-11-23 21:37:17,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45652173913043476 [2023-11-23 21:37:17,458 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 42 transitions. [2023-11-23 21:37:17,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 42 transitions. [2023-11-23 21:37:17,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:37:17,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 42 transitions. [2023-11-23 21:37:17,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2023-11-23 21:37:17,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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) [2023-11-23 21:37:17,468 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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) [2023-11-23 21:37:17,471 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 4 states and 42 transitions. [2023-11-23 21:37:17,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 25 transitions, 95 flow [2023-11-23 21:37:17,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:37:17,476 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 46 flow [2023-11-23 21:37:17,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-11-23 21:37:17,483 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2023-11-23 21:37:17,483 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 46 flow [2023-11-23 21:37:17,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-23 21:37:17,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:37:17,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:37:17,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:37:17,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:37:17,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:17,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1340851411, now seen corresponding path program 1 times [2023-11-23 21:37:17,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:17,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514199224] [2023-11-23 21:37:17,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:17,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:17,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:17,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:17,599 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:37:17,602 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-11-23 21:37:17,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-11-23 21:37:17,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2023-11-23 21:37:17,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-23 21:37:17,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-11-23 21:37:17,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-11-23 21:37:17,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-11-23 21:37:17,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:37:17,608 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 21:37:17,617 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 21:37:17,617 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:37:17,640 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock [2023-11-23 21:37:17,641 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers [2023-11-23 21:37:17,643 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner [2023-11-23 21:37:17,643 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind [2023-11-23 21:37:17,644 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count [2023-11-23 21:37:17,644 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated [2023-11-23 21:37:17,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock [2023-11-23 21:37:17,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers [2023-11-23 21:37:17,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner [2023-11-23 21:37:17,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind [2023-11-23 21:37:17,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count [2023-11-23 21:37:17,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock [2023-11-23 21:37:17,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers [2023-11-23 21:37:17,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner [2023-11-23 21:37:17,647 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count [2023-11-23 21:37:17,647 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated [2023-11-23 21:37:17,647 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind [2023-11-23 21:37:17,647 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-11-23 21:37:17,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:37:17 BasicIcfg [2023-11-23 21:37:17,659 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:37:17,660 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:37:17,660 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:37:17,660 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:37:17,661 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:16" (3/4) ... [2023-11-23 21:37:17,662 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 21:37:17,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock [2023-11-23 21:37:17,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers [2023-11-23 21:37:17,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner [2023-11-23 21:37:17,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind [2023-11-23 21:37:17,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated [2023-11-23 21:37:17,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count [2023-11-23 21:37:17,673 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock [2023-11-23 21:37:17,673 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers [2023-11-23 21:37:17,673 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner [2023-11-23 21:37:17,673 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind [2023-11-23 21:37:17,673 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count [2023-11-23 21:37:17,674 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock [2023-11-23 21:37:17,674 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers [2023-11-23 21:37:17,674 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner [2023-11-23 21:37:17,674 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count [2023-11-23 21:37:17,675 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated [2023-11-23 21:37:17,675 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind [2023-11-23 21:37:17,675 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-11-23 21:37:17,719 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 21:37:17,719 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:37:17,720 INFO L158 Benchmark]: Toolchain (without parser) took 3290.18ms. Allocated memory is still 148.9MB. Free memory was 110.4MB in the beginning and 92.9MB in the end (delta: 17.5MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-11-23 21:37:17,720 INFO L158 Benchmark]: CDTParser took 1.73ms. Allocated memory is still 102.8MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:17,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 899.46ms. Allocated memory is still 148.9MB. Free memory was 110.0MB in the beginning and 82.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 21:37:17,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.86ms. Allocated memory is still 148.9MB. Free memory was 82.4MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:37:17,722 INFO L158 Benchmark]: Boogie Preprocessor took 72.48ms. Allocated memory is still 148.9MB. Free memory was 80.2MB in the beginning and 119.3MB in the end (delta: -39.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-11-23 21:37:17,723 INFO L158 Benchmark]: RCFGBuilder took 731.99ms. Allocated memory is still 148.9MB. Free memory was 119.3MB in the beginning and 92.7MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:37:17,723 INFO L158 Benchmark]: TraceAbstraction took 1429.26ms. Allocated memory is still 148.9MB. Free memory was 92.0MB in the beginning and 96.2MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:17,724 INFO L158 Benchmark]: Witness Printer took 59.41ms. Allocated memory is still 148.9MB. Free memory was 96.2MB in the beginning and 92.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:37:17,727 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.73ms. Allocated memory is still 102.8MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 899.46ms. Allocated memory is still 148.9MB. Free memory was 110.0MB in the beginning and 82.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.86ms. Allocated memory is still 148.9MB. Free memory was 82.4MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.48ms. Allocated memory is still 148.9MB. Free memory was 80.2MB in the beginning and 119.3MB in the end (delta: -39.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * RCFGBuilder took 731.99ms. Allocated memory is still 148.9MB. Free memory was 119.3MB in the beginning and 92.7MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1429.26ms. Allocated memory is still 148.9MB. Free memory was 92.0MB in the beginning and 96.2MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.41ms. Allocated memory is still 148.9MB. Free memory was 96.2MB in the beginning and 92.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 924]: integer overflow possible integer overflow possible We found a FailurePath: [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_t id; [L930] 0 int i = __VERIFIER_nondet_int(); [L930] 0 int i = __VERIFIER_nondet_int(); [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [arg={3:0}, i={3:0}, id={2:0}, mutex1={1:0}] [L922] 1 int *p = (int *) arg; VAL [arg={3:0}, arg={3:0}, mutex1={1:0}, p={3:0}] [L924] EXPR 1 \read(*p) [L924] 1 (*p)++ VAL [arg={3:0}, arg={3:0}, mutex1={1:0}, p={3:0}] - UnprovableResult [Line: 934]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 35 locations, 7 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: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=1, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-23 21:37:17,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bddf490-750c-431a-a91e-556d581ff08a/bin/uautomizer-verify-zZY32mL2XJ/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)