./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/goblint-regression/13-privatized_36-traces-ex-3_true.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 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 16:24:26,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 16:24:26,879 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 16:24:26,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 16:24:26,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 16:24:26,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 16:24:26,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 16:24:26,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 16:24:26,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 16:24:26,927 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 16:24:26,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 16:24:26,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 16:24:26,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 16:24:26,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 16:24:26,930 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 16:24:26,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 16:24:26,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 16:24:26,931 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 16:24:26,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 16:24:26,931 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 16:24:26,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 16:24:26,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 16:24:26,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 16:24:26,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 16:24:26,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 16:24:26,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 16:24:26,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 16:24:26,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 16:24:26,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 16:24:26,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 16:24:26,934 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 16:24:26,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 16:24:26,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:24:26,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 16:24:26,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 16:24:26,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 16:24:26,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 16:24:26,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 16:24:26,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 16:24:26,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 16:24:26,936 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 16:24:26,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 16:24:26,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 16:24:26,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 [2024-06-27 16:24:27,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 16:24:27,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 16:24:27,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 16:24:27,163 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 16:24:27,163 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 16:24:27,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2024-06-27 16:24:28,173 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 16:24:28,351 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 16:24:28,352 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2024-06-27 16:24:28,362 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b62dbed/0a145d4343164e71b0950a4f4412fbdd/FLAG16f41285f [2024-06-27 16:24:28,378 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b62dbed/0a145d4343164e71b0950a4f4412fbdd [2024-06-27 16:24:28,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 16:24:28,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-06-27 16:24:28,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 16:24:28,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 16:24:28,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 16:24:28,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386f3527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28, skipping insertion in model container [2024-06-27 16:24:28,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,435 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 16:24:28,569 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2024-06-27 16:24:28,697 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:24:28,709 INFO L202 MainTranslator]: Completed pre-run [2024-06-27 16:24:28,728 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2024-06-27 16:24:28,759 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:24:28,800 INFO L206 MainTranslator]: Completed translation [2024-06-27 16:24:28,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28 WrapperNode [2024-06-27 16:24:28,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 16:24:28,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 16:24:28,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 16:24:28,803 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 16:24:28,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,864 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2024-06-27 16:24:28,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 16:24:28,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 16:24:28,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 16:24:28,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 16:24:28,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,896 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-27 16:24:28,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 16:24:28,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 16:24:28,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 16:24:28,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 16:24:28,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (1/1) ... [2024-06-27 16:24:28,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:24:28,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 16:24:28,952 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) [2024-06-27 16:24:28,958 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 [2024-06-27 16:24:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 16:24:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 16:24:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-27 16:24:28,994 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-27 16:24:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 16:24:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 16:24:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 16:24:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 16:24:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 16:24:28,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 16:24:28,997 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 16:24:29,119 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 16:24:29,120 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 16:24:29,224 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 16:24:29,224 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 16:24:29,313 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 16:24:29,315 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 16:24:29,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:24:29 BoogieIcfgContainer [2024-06-27 16:24:29,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 16:24:29,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 16:24:29,323 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 16:24:29,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 16:24:29,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 04:24:28" (1/3) ... [2024-06-27 16:24:29,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a09dfb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:24:29, skipping insertion in model container [2024-06-27 16:24:29,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:24:28" (2/3) ... [2024-06-27 16:24:29,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a09dfb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:24:29, skipping insertion in model container [2024-06-27 16:24:29,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:24:29" (3/3) ... [2024-06-27 16:24:29,328 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2024-06-27 16:24:29,334 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-06-27 16:24:29,341 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 16:24:29,341 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-27 16:24:29,341 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 16:24:29,369 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 16:24:29,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 26 transitions, 56 flow [2024-06-27 16:24:29,419 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2024-06-27 16:24:29,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:24:29,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 25 events. 1/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-06-27 16:24:29,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 26 transitions, 56 flow [2024-06-27 16:24:29,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2024-06-27 16:24:29,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 16:24:29,438 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;@4711887b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 16:24:29,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-27 16:24:29,443 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 16:24:29,443 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-06-27 16:24:29,444 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:24:29,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:24:29,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:24:29,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 16:24:29,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:24:29,449 INFO L85 PathProgramCache]: Analyzing trace with hash -326829029, now seen corresponding path program 1 times [2024-06-27 16:24:29,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:24:29,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901472776] [2024-06-27 16:24:29,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:24:29,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:24:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:24:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:24:29,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:24:29,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901472776] [2024-06-27 16:24:29,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901472776] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:24:29,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:24:29,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 16:24:29,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269033489] [2024-06-27 16:24:29,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:24:29,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 16:24:29,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:24:29,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 16:24:29,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 16:24:29,707 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-06-27 16:24:29,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-06-27 16:24:29,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:24:29,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-06-27 16:24:29,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:24:29,841 INFO L124 PetriNetUnfolderBase]: 39/114 cut-off events. [2024-06-27 16:24:29,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:24:29,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 114 events. 39/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 381 event pairs, 20 based on Foata normal form. 8/122 useless extension candidates. Maximal degree in co-relation 210. Up to 51 conditions per place. [2024-06-27 16:24:29,845 INFO L140 encePairwiseOnDemand]: 21/26 looper letters, 17 selfloop transitions, 3 changer transitions 8/33 dead transitions. [2024-06-27 16:24:29,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 33 transitions, 125 flow [2024-06-27 16:24:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 16:24:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 16:24:29,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2024-06-27 16:24:29,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2024-06-27 16:24:29,856 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 5 states and 60 transitions. [2024-06-27 16:24:29,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 33 transitions, 125 flow [2024-06-27 16:24:29,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 33 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 16:24:29,859 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 57 flow [2024-06-27 16:24:29,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, 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=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=57, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2024-06-27 16:24:29,864 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2024-06-27 16:24:29,864 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 57 flow [2024-06-27 16:24:29,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-06-27 16:24:29,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:24:29,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:24:29,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 16:24:29,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 16:24:29,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:24:29,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1271245247, now seen corresponding path program 1 times [2024-06-27 16:24:29,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:24:29,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327788330] [2024-06-27 16:24:29,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:24:29,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:24:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:24:30,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:24:30,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:24:30,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327788330] [2024-06-27 16:24:30,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327788330] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:24:30,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:24:30,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 16:24:30,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821215800] [2024-06-27 16:24:30,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:24:30,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 16:24:30,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:24:30,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 16:24:30,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-27 16:24:30,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2024-06-27 16:24:30,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-06-27 16:24:30,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:24:30,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2024-06-27 16:24:30,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:24:30,076 INFO L124 PetriNetUnfolderBase]: 22/67 cut-off events. [2024-06-27 16:24:30,077 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-27 16:24:30,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 67 events. 22/67 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 157 event pairs, 6 based on Foata normal form. 6/73 useless extension candidates. Maximal degree in co-relation 140. Up to 39 conditions per place. [2024-06-27 16:24:30,077 INFO L140 encePairwiseOnDemand]: 22/26 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2024-06-27 16:24:30,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 21 transitions, 87 flow [2024-06-27 16:24:30,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 16:24:30,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 16:24:30,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 51 transitions. [2024-06-27 16:24:30,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49038461538461536 [2024-06-27 16:24:30,080 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 57 flow. Second operand 4 states and 51 transitions. [2024-06-27 16:24:30,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 21 transitions, 87 flow [2024-06-27 16:24:30,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 16:24:30,083 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2024-06-27 16:24:30,083 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2024-06-27 16:24:30,084 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2024-06-27 16:24:30,084 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2024-06-27 16:24:30,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-06-27 16:24:30,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-06-27 16:24:30,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-27 16:24:30,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 16:24:30,088 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-27 16:24:30,092 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 16:24:30,093 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 16:24:30,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 04:24:30 BasicIcfg [2024-06-27 16:24:30,098 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 16:24:30,098 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-06-27 16:24:30,098 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-06-27 16:24:30,099 INFO L274 PluginConnector]: Witness Printer initialized [2024-06-27 16:24:30,099 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:24:29" (3/4) ... [2024-06-27 16:24:30,102 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-06-27 16:24:30,105 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-06-27 16:24:30,109 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-06-27 16:24:30,109 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-06-27 16:24:30,110 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-06-27 16:24:30,110 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-06-27 16:24:30,180 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-06-27 16:24:30,180 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-06-27 16:24:30,180 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-06-27 16:24:30,181 INFO L158 Benchmark]: Toolchain (without parser) took 1800.20ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 80.1MB in the beginning and 131.4MB in the end (delta: -51.3MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-06-27 16:24:30,186 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 136.3MB. Free memory was 99.2MB in the beginning and 99.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 16:24:30,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.28ms. Allocated memory is still 136.3MB. Free memory was 79.7MB in the beginning and 59.4MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-06-27 16:24:30,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.87ms. Allocated memory is still 136.3MB. Free memory was 59.1MB in the beginning and 107.1MB in the end (delta: -48.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-06-27 16:24:30,192 INFO L158 Benchmark]: Boogie Preprocessor took 60.27ms. Allocated memory is still 136.3MB. Free memory was 107.1MB in the beginning and 105.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 16:24:30,192 INFO L158 Benchmark]: RCFGBuilder took 395.16ms. Allocated memory is still 136.3MB. Free memory was 105.2MB in the beginning and 81.5MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-27 16:24:30,192 INFO L158 Benchmark]: TraceAbstraction took 775.41ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 80.6MB in the beginning and 135.7MB in the end (delta: -55.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-06-27 16:24:30,193 INFO L158 Benchmark]: Witness Printer took 82.03ms. Allocated memory is still 197.1MB. Free memory was 135.7MB in the beginning and 131.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 16:24:30,195 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 136.3MB. Free memory was 99.2MB in the beginning and 99.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.28ms. Allocated memory is still 136.3MB. Free memory was 79.7MB in the beginning and 59.4MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.87ms. Allocated memory is still 136.3MB. Free memory was 59.1MB in the beginning and 107.1MB in the end (delta: -48.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.27ms. Allocated memory is still 136.3MB. Free memory was 107.1MB in the beginning and 105.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.16ms. Allocated memory is still 136.3MB. Free memory was 105.2MB in the beginning and 81.5MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 775.41ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 80.6MB in the beginning and 135.7MB in the end (delta: -55.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 82.03ms. Allocated memory is still 197.1MB. Free memory was 135.7MB in the beginning and 131.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 2 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: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 2 mSDtfsCounter, 78 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=1, InterpolantAutomatonStates: 9, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 107 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 16:24:30,220 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 Result: TRUE