./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 4fc63b2a 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_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/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_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU --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 0.2.5-dev-4fc63b2 [2024-10-31 21:57:08,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:57:08,777 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:57:08,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:57:08,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:57:08,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:57:08,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:57:08,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:57:08,823 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:57:08,824 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:57:08,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:57:08,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:57:08,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:57:08,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:57:08,829 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:57:08,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:57:08,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:57:08,831 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:57:08,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:57:08,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:57:08,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:57:08,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:57:08,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:57:08,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:57:08,834 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:57:08,834 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:57:08,835 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:57:08,835 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:57:08,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:57:08,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:57:08,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:57:08,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:57:08,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:57:08,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:57:08,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:08,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:57:08,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:57:08,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:57:08,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:57:08,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:57:08,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:57:08,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:57:08,841 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:57:08,841 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:57:08,842 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_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33eb4dcd0a621d6c4bb6626c0e74463917de75952c777f271b8d23f0dedf14cb [2024-10-31 21:57:09,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:57:09,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:57:09,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:57:09,175 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:57:09,175 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:57:09,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i Unable to find full path for "g++" [2024-10-31 21:57:11,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:57:11,692 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:57:11,693 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i [2024-10-31 21:57:11,713 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/data/f9dee4cbc/7ac626b8af594b2796de7bde36fecbb2/FLAGe942d76f6 [2024-10-31 21:57:11,978 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/data/f9dee4cbc/7ac626b8af594b2796de7bde36fecbb2 [2024-10-31 21:57:11,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:57:11,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:57:11,986 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:11,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:57:11,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:57:11,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:11" (1/1) ... [2024-10-31 21:57:11,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a1d94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:11, skipping insertion in model container [2024-10-31 21:57:11,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:11" (1/1) ... [2024-10-31 21:57:12,059 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:57:12,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:12,723 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:57:12,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:12,877 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:57:12,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12 WrapperNode [2024-10-31 21:57:12,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:12,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:12,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:57:12,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:57:12,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,926 INFO L138 Inliner]: procedures = 264, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 98 [2024-10-31 21:57:12,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:12,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:57:12,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:57:12,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:57:12,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,959 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [5, 5]. 50 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [5, 1]. The 2 writes are split as follows [0, 2]. [2024-10-31 21:57:12,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:57:12,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:57:12,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:57:12,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:57:12,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (1/1) ... [2024-10-31 21:57:12,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:12,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:13,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:13,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:57:13,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:57:13,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:57:13,045 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:57:13,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 21:57:13,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 21:57:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 21:57:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 21:57:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:57:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:57:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 21:57:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 21:57:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:57:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:57:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:57:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:57:13,049 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:57:13,281 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:57:13,283 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:57:13,527 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:57:13,527 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:57:13,963 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:57:13,964 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 21:57:13,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:13 BoogieIcfgContainer [2024-10-31 21:57:13,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:57:13,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:57:13,968 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:57:13,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:57:13,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:57:11" (1/3) ... [2024-10-31 21:57:13,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac77805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:13, skipping insertion in model container [2024-10-31 21:57:13,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:12" (2/3) ... [2024-10-31 21:57:13,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac77805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:13, skipping insertion in model container [2024-10-31 21:57:13,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:13" (3/3) ... [2024-10-31 21:57:13,977 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46a-escape_nr.i [2024-10-31 21:57:13,997 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:57:13,997 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-31 21:57:13,997 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:57:14,039 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 21:57:14,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 53 flow [2024-10-31 21:57:14,120 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-10-31 21:57:14,121 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:57:14,123 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. [2024-10-31 21:57:14,124 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 53 flow [2024-10-31 21:57:14,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2024-10-31 21:57:14,144 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:57:14,153 INFO L333 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, 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;@b2d2b76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:57:14,153 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 21:57:14,163 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:57:14,164 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-10-31 21:57:14,165 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:57:14,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:14,166 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:57:14,167 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 21:57:14,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:14,172 INFO L85 PathProgramCache]: Analyzing trace with hash -381922027, now seen corresponding path program 1 times [2024-10-31 21:57:14,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:14,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388587778] [2024-10-31 21:57:14,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:14,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:14,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:14,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388587778] [2024-10-31 21:57:14,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388587778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:14,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:14,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:57:14,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884191240] [2024-10-31 21:57:14,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:14,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:57:14,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:57:14,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:57:14,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-10-31 21:57:14,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-10-31 21:57:14,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:14,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-10-31 21:57:14,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:14,915 INFO L124 PetriNetUnfolderBase]: 44/132 cut-off events. [2024-10-31 21:57:14,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:57:14,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 132 events. 44/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 495 event pairs, 16 based on Foata normal form. 7/125 useless extension candidates. Maximal degree in co-relation 234. Up to 43 conditions per place. [2024-10-31 21:57:14,919 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 20 selfloop transitions, 6 changer transitions 5/36 dead transitions. [2024-10-31 21:57:14,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 36 transitions, 137 flow [2024-10-31 21:57:14,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:57:14,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:57:14,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2024-10-31 21:57:14,934 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5478260869565217 [2024-10-31 21:57:14,936 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 5 states and 63 transitions. [2024-10-31 21:57:14,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 36 transitions, 137 flow [2024-10-31 21:57:14,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 36 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:57:14,943 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 80 flow [2024-10-31 21:57:14,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=80, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2024-10-31 21:57:14,949 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 7 predicate places. [2024-10-31 21:57:14,949 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 80 flow [2024-10-31 21:57:14,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-10-31 21:57:14,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:14,950 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:57:14,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:57:14,951 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 21:57:14,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:14,951 INFO L85 PathProgramCache]: Analyzing trace with hash -381309518, now seen corresponding path program 1 times [2024-10-31 21:57:14,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:14,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554265718] [2024-10-31 21:57:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:14,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:15,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:15,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554265718] [2024-10-31 21:57:15,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554265718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:15,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:15,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:57:15,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094024962] [2024-10-31 21:57:15,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:15,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:57:15,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:15,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:57:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:57:15,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-10-31 21:57:15,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 80 flow. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) [2024-10-31 21:57:15,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:15,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-10-31 21:57:15,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:15,455 INFO L124 PetriNetUnfolderBase]: 36/120 cut-off events. [2024-10-31 21:57:15,455 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-31 21:57:15,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 120 events. 36/120 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 466 event pairs, 7 based on Foata normal form. 6/126 useless extension candidates. Maximal degree in co-relation 266. Up to 37 conditions per place. [2024-10-31 21:57:15,458 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 21 selfloop transitions, 10 changer transitions 7/44 dead transitions. [2024-10-31 21:57:15,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 222 flow [2024-10-31 21:57:15,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:57:15,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 21:57:15,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 86 transitions. [2024-10-31 21:57:15,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4673913043478261 [2024-10-31 21:57:15,461 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 80 flow. Second operand 8 states and 86 transitions. [2024-10-31 21:57:15,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 222 flow [2024-10-31 21:57:15,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 44 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:57:15,465 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 146 flow [2024-10-31 21:57:15,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=146, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2024-10-31 21:57:15,466 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2024-10-31 21:57:15,467 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 146 flow [2024-10-31 21:57:15,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) [2024-10-31 21:57:15,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:15,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:15,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:57:15,468 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 21:57:15,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:15,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1045319316, now seen corresponding path program 1 times [2024-10-31 21:57:15,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:15,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85705711] [2024-10-31 21:57:15,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:15,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:15,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:57:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:57:15,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:57:15,576 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:57:15,578 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-10-31 21:57:15,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-10-31 21:57:15,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-31 21:57:15,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-10-31 21:57:15,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-10-31 21:57:15,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-10-31 21:57:15,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-10-31 21:57:15,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:57:15,585 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-31 21:57:15,622 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 21:57:15,622 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:57:15,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:57:15 BasicIcfg [2024-10-31 21:57:15,627 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:57:15,628 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:57:15,628 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:57:15,629 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:57:15,629 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:13" (3/4) ... [2024-10-31 21:57:15,630 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 21:57:15,673 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:57:15,674 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:57:15,675 INFO L158 Benchmark]: Toolchain (without parser) took 3691.03ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 122.6MB in the beginning and 66.8MB in the end (delta: 55.9MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2024-10-31 21:57:15,675 INFO L158 Benchmark]: CDTParser took 1.19ms. Allocated memory is still 113.2MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:57:15,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 891.87ms. Allocated memory is still 163.6MB. Free memory was 122.3MB in the beginning and 91.9MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-31 21:57:15,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.84ms. Allocated memory is still 163.6MB. Free memory was 91.9MB in the beginning and 89.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:57:15,677 INFO L158 Benchmark]: Boogie Preprocessor took 50.52ms. Allocated memory is still 163.6MB. Free memory was 89.5MB in the beginning and 87.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 21:57:15,678 INFO L158 Benchmark]: RCFGBuilder took 986.54ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 87.0MB in the beginning and 115.0MB in the end (delta: -27.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-10-31 21:57:15,679 INFO L158 Benchmark]: TraceAbstraction took 1660.71ms. Allocated memory is still 205.5MB. Free memory was 113.9MB in the beginning and 68.9MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2024-10-31 21:57:15,679 INFO L158 Benchmark]: Witness Printer took 45.74ms. Allocated memory is still 205.5MB. Free memory was 68.9MB in the beginning and 66.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:57:15,682 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19ms. Allocated memory is still 113.2MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 891.87ms. Allocated memory is still 163.6MB. Free memory was 122.3MB in the beginning and 91.9MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.84ms. Allocated memory is still 163.6MB. Free memory was 91.9MB in the beginning and 89.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.52ms. Allocated memory is still 163.6MB. Free memory was 89.5MB in the beginning and 87.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 986.54ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 87.0MB in the beginning and 115.0MB in the end (delta: -27.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1660.71ms. Allocated memory is still 205.5MB. Free memory was 113.9MB in the beginning and 68.9MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. * Witness Printer took 45.74ms. Allocated memory is still 205.5MB. Free memory was 68.9MB in the beginning and 66.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 934]: 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 [\old(arg)={25:0}, i={25:0}, id=-1, mutex1={1:0}] [L934] EXPR 0 \read(i) [L934] 0 i++ VAL [\old(arg)={25:0}, i={25:0}, id=-1, mutex1={1:0}] - 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: 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. - 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: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred 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, 0.5s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2024-10-31 21:57:15,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5bf3b-1e57-4761-94c2-d04545485e78/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)