./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c --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/weaver/chl-collitem-symm.wvr.c -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 631177edb7ca950f3594c5b6eaac98148a00ee69e6a0cd62c1c95947fa56259c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 15:21:26,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 15:21:27,029 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 15:21:27,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 15:21:27,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 15:21:27,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 15:21:27,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 15:21:27,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 15:21:27,065 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 15:21:27,069 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 15:21:27,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 15:21:27,069 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 15:21:27,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 15:21:27,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 15:21:27,071 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 15:21:27,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 15:21:27,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 15:21:27,072 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 15:21:27,072 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 15:21:27,072 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 15:21:27,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 15:21:27,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 15:21:27,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 15:21:27,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 15:21:27,074 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 15:21:27,075 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 15:21:27,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 15:21:27,075 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 15:21:27,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 15:21:27,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 15:21:27,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 15:21:27,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 15:21:27,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:21:27,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 15:21:27,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 15:21:27,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 15:21:27,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 15:21:27,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 15:21:27,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 15:21:27,078 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 15:21:27,078 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 15:21:27,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 15:21:27,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 15:21:27,079 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 631177edb7ca950f3594c5b6eaac98148a00ee69e6a0cd62c1c95947fa56259c [2024-01-27 15:21:27,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 15:21:27,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 15:21:27,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 15:21:27,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 15:21:27,321 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 15:21:27,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2024-01-27 15:21:28,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 15:21:28,393 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 15:21:28,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2024-01-27 15:21:28,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f4b69004/3b880bb4be3d4f878f69269ac09ffcaa/FLAG02819e893 [2024-01-27 15:21:28,414 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f4b69004/3b880bb4be3d4f878f69269ac09ffcaa [2024-01-27 15:21:28,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 15:21:28,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 15:21:28,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 15:21:28,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 15:21:28,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 15:21:28,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d97a495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28, skipping insertion in model container [2024-01-27 15:21:28,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,443 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 15:21:28,665 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c[3012,3025] [2024-01-27 15:21:28,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:21:28,678 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 15:21:28,693 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c[3012,3025] [2024-01-27 15:21:28,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:21:28,705 INFO L206 MainTranslator]: Completed translation [2024-01-27 15:21:28,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28 WrapperNode [2024-01-27 15:21:28,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 15:21:28,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 15:21:28,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 15:21:28,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 15:21:28,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,747 INFO L138 Inliner]: procedures = 22, calls = 35, calls flagged for inlining = 15, calls inlined = 29, statements flattened = 263 [2024-01-27 15:21:28,748 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 15:21:28,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 15:21:28,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 15:21:28,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 15:21:28,762 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,793 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-27 15:21:28,793 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,793 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 15:21:28,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 15:21:28,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 15:21:28,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 15:21:28,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (1/1) ... [2024-01-27 15:21:28,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:21:28,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 15:21:28,840 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 15:21:28,857 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 15:21:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 15:21:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 15:21:28,892 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 15:21:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 15:21:28,892 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 15:21:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 15:21:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 15:21:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 15:21:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 15:21:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 15:21:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 15:21:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 15:21:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 15:21:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 15:21:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 15:21:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 15:21:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 15:21:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 15:21:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 15:21:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 15:21:28,900 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 15:21:29,003 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 15:21:29,005 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 15:21:29,405 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 15:21:29,406 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 15:21:29,758 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 15:21:29,758 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 15:21:29,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:21:29 BoogieIcfgContainer [2024-01-27 15:21:29,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 15:21:29,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 15:21:29,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 15:21:29,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 15:21:29,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 03:21:28" (1/3) ... [2024-01-27 15:21:29,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af71d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:21:29, skipping insertion in model container [2024-01-27 15:21:29,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:21:28" (2/3) ... [2024-01-27 15:21:29,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af71d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:21:29, skipping insertion in model container [2024-01-27 15:21:29,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:21:29" (3/3) ... [2024-01-27 15:21:29,765 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2024-01-27 15:21:29,772 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 15:21:29,780 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 15:21:29,780 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-27 15:21:29,780 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 15:21:29,825 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-27 15:21:29,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 19 transitions, 52 flow [2024-01-27 15:21:29,872 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-01-27 15:21:29,872 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 15:21:29,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 0/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-27 15:21:29,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 19 transitions, 52 flow [2024-01-27 15:21:29,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 16 transitions, 44 flow [2024-01-27 15:21:29,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 15:21:29,887 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;@3158f371, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 15:21:29,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-01-27 15:21:29,895 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 15:21:29,895 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-01-27 15:21:29,895 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 15:21:29,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:21:29,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:21:29,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-27 15:21:29,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:21:29,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1783944602, now seen corresponding path program 1 times [2024-01-27 15:21:29,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:21:29,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266097963] [2024-01-27 15:21:29,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:21:29,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:21:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:21:31,494 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 15:21:31,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:21:31,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266097963] [2024-01-27 15:21:31,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266097963] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:21:31,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:21:31,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:21:31,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73143197] [2024-01-27 15:21:31,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:21:31,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 15:21:31,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:21:31,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 15:21:31,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 15:21:31,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2024-01-27 15:21:31,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 15:21:31,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:21:31,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2024-01-27 15:21:31,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:21:31,630 INFO L124 PetriNetUnfolderBase]: 30/80 cut-off events. [2024-01-27 15:21:31,630 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-27 15:21:31,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 80 events. 30/80 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 227 event pairs, 6 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 119. Up to 32 conditions per place. [2024-01-27 15:21:31,633 INFO L140 encePairwiseOnDemand]: 16/19 looper letters, 16 selfloop transitions, 1 changer transitions 7/27 dead transitions. [2024-01-27 15:21:31,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 123 flow [2024-01-27 15:21:31,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 15:21:31,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 15:21:31,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2024-01-27 15:21:31,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5921052631578947 [2024-01-27 15:21:31,643 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 44 flow. Second operand 4 states and 45 transitions. [2024-01-27 15:21:31,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 123 flow [2024-01-27 15:21:31,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 27 transitions, 109 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 15:21:31,646 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 43 flow [2024-01-27 15:21:31,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=43, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2024-01-27 15:21:31,650 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2024-01-27 15:21:31,650 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 43 flow [2024-01-27 15:21:31,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 15:21:31,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:21:31,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:21:31,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 15:21:31,651 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-27 15:21:31,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:21:31,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1794704902, now seen corresponding path program 2 times [2024-01-27 15:21:31,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:21:31,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445760854] [2024-01-27 15:21:31,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:21:31,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:21:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:21:32,792 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 15:21:32,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:21:32,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445760854] [2024-01-27 15:21:32,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445760854] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:21:32,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:21:32,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:21:32,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846589772] [2024-01-27 15:21:32,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:21:32,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 15:21:32,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:21:32,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 15:21:32,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 15:21:32,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2024-01-27 15:21:32,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 15:21:32,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:21:32,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2024-01-27 15:21:32,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:21:32,927 INFO L124 PetriNetUnfolderBase]: 20/54 cut-off events. [2024-01-27 15:21:32,927 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-01-27 15:21:32,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 54 events. 20/54 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 122 event pairs, 2 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 122. Up to 25 conditions per place. [2024-01-27 15:21:32,928 INFO L140 encePairwiseOnDemand]: 16/19 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2024-01-27 15:21:32,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 23 transitions, 102 flow [2024-01-27 15:21:32,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 15:21:32,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 15:21:32,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2024-01-27 15:21:32,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5526315789473685 [2024-01-27 15:21:32,930 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 43 flow. Second operand 4 states and 42 transitions. [2024-01-27 15:21:32,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 23 transitions, 102 flow [2024-01-27 15:21:32,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 23 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 15:21:32,931 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2024-01-27 15:21:32,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2024-01-27 15:21:32,931 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 0 predicate places. [2024-01-27 15:21:32,932 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2024-01-27 15:21:32,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 15:21:32,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-01-27 15:21:32,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-01-27 15:21:32,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-01-27 15:21:32,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 15:21:32,935 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2024-01-27 15:21:32,937 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 15:21:32,937 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 15:21:32,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 03:21:32 BasicIcfg [2024-01-27 15:21:32,941 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 15:21:32,941 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-01-27 15:21:32,942 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-01-27 15:21:32,942 INFO L274 PluginConnector]: Witness Printer initialized [2024-01-27 15:21:32,942 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:21:29" (3/4) ... [2024-01-27 15:21:32,943 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-01-27 15:21:32,946 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-01-27 15:21:32,946 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-01-27 15:21:32,949 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 96 nodes and edges [2024-01-27 15:21:32,949 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-01-27 15:21:32,949 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-01-27 15:21:32,950 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-01-27 15:21:33,007 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-01-27 15:21:33,008 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-01-27 15:21:33,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-01-27 15:21:33,009 INFO L158 Benchmark]: Toolchain (without parser) took 4591.58ms. Allocated memory was 134.2MB in the beginning and 276.8MB in the end (delta: 142.6MB). Free memory was 97.8MB in the beginning and 179.6MB in the end (delta: -81.8MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2024-01-27 15:21:33,009 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 110.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 15:21:33,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.18ms. Allocated memory is still 134.2MB. Free memory was 97.8MB in the beginning and 102.4MB in the end (delta: -4.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-01-27 15:21:33,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.63ms. Allocated memory is still 134.2MB. Free memory was 102.4MB in the beginning and 99.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 15:21:33,010 INFO L158 Benchmark]: Boogie Preprocessor took 57.43ms. Allocated memory is still 134.2MB. Free memory was 99.9MB in the beginning and 96.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 15:21:33,010 INFO L158 Benchmark]: RCFGBuilder took 952.42ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 96.8MB in the beginning and 141.9MB in the end (delta: -45.1MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2024-01-27 15:21:33,013 INFO L158 Benchmark]: TraceAbstraction took 3180.80ms. Allocated memory was 178.3MB in the beginning and 276.8MB in the end (delta: 98.6MB). Free memory was 141.9MB in the beginning and 184.8MB in the end (delta: -43.0MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2024-01-27 15:21:33,013 INFO L158 Benchmark]: Witness Printer took 66.66ms. Allocated memory is still 276.8MB. Free memory was 184.8MB in the beginning and 179.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 15:21:33,014 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 134.2MB. Free memory is still 110.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.18ms. Allocated memory is still 134.2MB. Free memory was 97.8MB in the beginning and 102.4MB in the end (delta: -4.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.63ms. Allocated memory is still 134.2MB. Free memory was 102.4MB in the beginning and 99.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.43ms. Allocated memory is still 134.2MB. Free memory was 99.9MB in the beginning and 96.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 952.42ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 96.8MB in the beginning and 141.9MB in the end (delta: -45.1MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3180.80ms. Allocated memory was 178.3MB in the beginning and 276.8MB in the end (delta: 98.6MB). Free memory was 141.9MB in the beginning and 184.8MB in the end (delta: -43.0MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * Witness Printer took 66.66ms. Allocated memory is still 276.8MB. Free memory was 184.8MB in the beginning and 179.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: 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 5 procedures, 30 locations, 3 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: 3.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 1674 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! [2024-01-27 15:21:33,046 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