./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread/singleton.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 16:06:41,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 16:06:41,907 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 16:06:41,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 16:06:41,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 16:06:41,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 16:06:41,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 16:06:41,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 16:06:41,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 16:06:41,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 16:06:41,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 16:06:41,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 16:06:41,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 16:06:41,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 16:06:41,943 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 16:06:41,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 16:06:41,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 16:06:41,944 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 16:06:41,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 16:06:41,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 16:06:41,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 16:06:41,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 16:06:41,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 16:06:41,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 16:06:41,946 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 16:06:41,946 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 16:06:41,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 16:06:41,947 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 16:06:41,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 16:06:41,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 16:06:41,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 16:06:41,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 16:06:41,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 16:06:41,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 16:06:41,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 16:06:41,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 16:06:41,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 16:06:41,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 16:06:41,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 16:06:41,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 16:06:41,950 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 16:06:41,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 16:06:41,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 16:06:41,950 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2024-01-27 16:06:42,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 16:06:42,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 16:06:42,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 16:06:42,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 16:06:42,200 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 16:06:42,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2024-01-27 16:06:43,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 16:06:43,386 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 16:06:43,387 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2024-01-27 16:06:43,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07cf0af0/65a303f58cc9488eb2c84915cb8dd0f0/FLAGc3c4eb9ed [2024-01-27 16:06:43,417 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07cf0af0/65a303f58cc9488eb2c84915cb8dd0f0 [2024-01-27 16:06:43,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 16:06:43,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 16:06:43,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 16:06:43,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 16:06:43,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 16:06:43,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f23704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43, skipping insertion in model container [2024-01-27 16:06:43,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,479 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 16:06:43,787 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2024-01-27 16:06:43,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 16:06:43,825 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 16:06:43,860 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2024-01-27 16:06:43,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 16:06:43,905 INFO L206 MainTranslator]: Completed translation [2024-01-27 16:06:43,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43 WrapperNode [2024-01-27 16:06:43,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 16:06:43,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 16:06:43,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 16:06:43,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 16:06:43,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,946 INFO L138 Inliner]: procedures = 324, calls = 51, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-01-27 16:06:43,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 16:06:43,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 16:06:43,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 16:06:43,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 16:06:43,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,975 INFO L175 MemorySlicer]: Split 17 memory accesses to 8 slices as follows [2, 2, 2, 3, 2, 2, 2, 2]. 18 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0, 0, 0, 0, 0]. The 8 writes are split as follows [1, 0, 1, 2, 1, 1, 1, 1]. [2024-01-27 16:06:43,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 16:06:43,994 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 16:06:43,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 16:06:43,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 16:06:43,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (1/1) ... [2024-01-27 16:06:43,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 16:06:44,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 16:06:44,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 16:06:44,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 16:06:44,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 16:06:44,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 16:06:44,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 16:06:44,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 16:06:44,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 16:06:44,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 16:06:44,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 16:06:44,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 16:06:44,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 16:06:44,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-27 16:06:44,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-27 16:06:44,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-01-27 16:06:44,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-01-27 16:06:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-01-27 16:06:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 16:06:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 16:06:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 16:06:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 16:06:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 16:06:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 16:06:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 16:06:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 16:06:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 16:06:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 16:06:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 16:06:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-27 16:06:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-27 16:06:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-01-27 16:06:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-27 16:06:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 16:06:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 16:06:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 16:06:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 16:06:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 16:06:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 16:06:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-27 16:06:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-27 16:06:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-01-27 16:06:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 16:06:44,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 16:06:44,091 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 16:06:44,279 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 16:06:44,280 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 16:06:44,430 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 16:06:44,430 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 16:06:44,527 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 16:06:44,527 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 16:06:44,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:06:44 BoogieIcfgContainer [2024-01-27 16:06:44,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 16:06:44,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 16:06:44,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 16:06:44,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 16:06:44,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 04:06:43" (1/3) ... [2024-01-27 16:06:44,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a74d01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 04:06:44, skipping insertion in model container [2024-01-27 16:06:44,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:06:43" (2/3) ... [2024-01-27 16:06:44,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a74d01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 04:06:44, skipping insertion in model container [2024-01-27 16:06:44,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:06:44" (3/3) ... [2024-01-27 16:06:44,536 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2024-01-27 16:06:44,542 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 16:06:44,549 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 16:06:44,549 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-27 16:06:44,549 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 16:06:44,611 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-01-27 16:06:44,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 80 transitions, 257 flow [2024-01-27 16:06:44,682 INFO L124 PetriNetUnfolderBase]: 6/49 cut-off events. [2024-01-27 16:06:44,682 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 16:06:44,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 49 events. 6/49 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 60. Up to 3 conditions per place. [2024-01-27 16:06:44,686 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 80 transitions, 257 flow [2024-01-27 16:06:44,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 46 transitions, 143 flow [2024-01-27 16:06:44,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:06:44,701 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;@68cb2f87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:06:44,701 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-01-27 16:06:44,714 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:06:44,714 INFO L124 PetriNetUnfolderBase]: 5/45 cut-off events. [2024-01-27 16:06:44,714 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 16:06:44,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:06:44,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:06:44,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2024-01-27 16:06:44,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:06:44,720 INFO L85 PathProgramCache]: Analyzing trace with hash -415823063, now seen corresponding path program 1 times [2024-01-27 16:06:44,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:06:44,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720795488] [2024-01-27 16:06:44,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:06:44,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:06:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:06:45,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:06:45,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:06:45,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720795488] [2024-01-27 16:06:45,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720795488] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:06:45,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:06:45,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 16:06:45,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474516739] [2024-01-27 16:06:45,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:06:45,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 16:06:45,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:06:45,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 16:06:45,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 16:06:45,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 82 [2024-01-27 16:06:45,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 46 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-01-27 16:06:45,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:06:45,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 82 [2024-01-27 16:06:45,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:06:45,894 INFO L124 PetriNetUnfolderBase]: 2651/3776 cut-off events. [2024-01-27 16:06:45,895 INFO L125 PetriNetUnfolderBase]: For 312/312 co-relation queries the response was YES. [2024-01-27 16:06:45,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8045 conditions, 3776 events. 2651/3776 cut-off events. For 312/312 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 17179 event pairs, 879 based on Foata normal form. 1/3619 useless extension candidates. Maximal degree in co-relation 8018. Up to 2329 conditions per place. [2024-01-27 16:06:45,910 INFO L140 encePairwiseOnDemand]: 76/82 looper letters, 54 selfloop transitions, 4 changer transitions 13/76 dead transitions. [2024-01-27 16:06:45,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 76 transitions, 381 flow [2024-01-27 16:06:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 16:06:45,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 16:06:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-01-27 16:06:45,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4024390243902439 [2024-01-27 16:06:45,925 INFO L175 Difference]: Start difference. First operand has 60 places, 46 transitions, 143 flow. Second operand 4 states and 132 transitions. [2024-01-27 16:06:45,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 76 transitions, 381 flow [2024-01-27 16:06:45,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 76 transitions, 323 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-01-27 16:06:45,943 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 141 flow [2024-01-27 16:06:45,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2024-01-27 16:06:45,948 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-01-27 16:06:45,948 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 141 flow [2024-01-27 16:06:45,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-01-27 16:06:45,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:06:45,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:06:45,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 16:06:45,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2024-01-27 16:06:45,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:06:45,951 INFO L85 PathProgramCache]: Analyzing trace with hash -501198679, now seen corresponding path program 2 times [2024-01-27 16:06:45,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:06:45,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058447360] [2024-01-27 16:06:45,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:06:45,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:06:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:06:46,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 16:06:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:06:46,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 16:06:46,081 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 16:06:46,083 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2024-01-27 16:06:46,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2024-01-27 16:06:46,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2024-01-27 16:06:46,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2024-01-27 16:06:46,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2024-01-27 16:06:46,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2024-01-27 16:06:46,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-01-27 16:06:46,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2024-01-27 16:06:46,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2024-01-27 16:06:46,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2024-01-27 16:06:46,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2024-01-27 16:06:46,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2024-01-27 16:06:46,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 16:06:46,091 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2024-01-27 16:06:46,095 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 16:06:46,096 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 16:06:46,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 04:06:46 BasicIcfg [2024-01-27 16:06:46,174 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 16:06:46,174 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-01-27 16:06:46,174 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-01-27 16:06:46,175 INFO L274 PluginConnector]: Witness Printer initialized [2024-01-27 16:06:46,175 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:06:44" (3/4) ... [2024-01-27 16:06:46,179 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2024-01-27 16:06:46,242 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-01-27 16:06:46,242 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-01-27 16:06:46,242 INFO L158 Benchmark]: Toolchain (without parser) took 2822.13ms. Allocated memory was 117.4MB in the beginning and 169.9MB in the end (delta: 52.4MB). Free memory was 84.1MB in the beginning and 55.0MB in the end (delta: 29.0MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2024-01-27 16:06:46,242 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 16:06:46,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.58ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 50.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-01-27 16:06:46,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.41ms. Allocated memory is still 117.4MB. Free memory was 50.0MB in the beginning and 47.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 16:06:46,243 INFO L158 Benchmark]: Boogie Preprocessor took 41.42ms. Allocated memory is still 117.4MB. Free memory was 47.9MB in the beginning and 45.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 16:06:46,243 INFO L158 Benchmark]: RCFGBuilder took 533.11ms. Allocated memory is still 117.4MB. Free memory was 44.7MB in the beginning and 65.1MB in the end (delta: -20.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-01-27 16:06:46,243 INFO L158 Benchmark]: TraceAbstraction took 1643.35ms. Allocated memory was 117.4MB in the beginning and 169.9MB in the end (delta: 52.4MB). Free memory was 64.5MB in the beginning and 73.9MB in the end (delta: -9.5MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2024-01-27 16:06:46,243 INFO L158 Benchmark]: Witness Printer took 67.53ms. Allocated memory is still 169.9MB. Free memory was 73.9MB in the beginning and 55.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-01-27 16:06:46,245 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.58ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 50.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.41ms. Allocated memory is still 117.4MB. Free memory was 50.0MB in the beginning and 47.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.42ms. Allocated memory is still 117.4MB. Free memory was 47.9MB in the beginning and 45.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 533.11ms. Allocated memory is still 117.4MB. Free memory was 44.7MB in the beginning and 65.1MB in the end (delta: -20.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1643.35ms. Allocated memory was 117.4MB in the beginning and 169.9MB in the end (delta: 52.4MB). Free memory was 64.5MB in the beginning and 73.9MB in the end (delta: -9.5MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Witness Printer took 67.53ms. Allocated memory is still 169.9MB. Free memory was 73.9MB in the beginning and 55.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, t={5:0}, v={0:0}] [L1163] 0 \read(t) VAL [arg={0:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] 1 \read(t1) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1153] 1 \read(t2) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1133] 3 v[0] = 'X' VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1135] 3 return 0; [L1133] 5 v[0] = 'X' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1135] 5 return 0; [L1133] 6 v[0] = 'X' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1135] 6 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1154] 1 \read(t3) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1140] 4 v[0] = 'Y' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1142] 4 return 0; [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1155] 1 \read(t4) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1156] 1 \read(t5) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-6:0}] [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={5:0}, v={-6:0}] [L1164] EXPR 0 v[0] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [L1123] COND TRUE 0 !expression VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={-6:0}] [L1123] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={-6:0}] - UnprovableResult [Line: 1152]: 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: 1151]: 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: 1149]: 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: 1150]: 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: 1147]: 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: 1162]: 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: 1147]: 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: 1149]: 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: 1150]: 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: 1151]: 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: 1152]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 93 locations, 12 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: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143occurred in iteration=0, 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, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 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! [2024-01-27 16:06:46,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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