./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_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 abd7c6a811fa727af1a8295486441ec66634091da13d54772e1efa33885ef21c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 15:12:11,709 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 15:12:11,777 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 15:12:11,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 15:12:11,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 15:12:11,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 15:12:11,811 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 15:12:11,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 15:12:11,812 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 15:12:11,815 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 15:12:11,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 15:12:11,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 15:12:11,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 15:12:11,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 15:12:11,818 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 15:12:11,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 15:12:11,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 15:12:11,819 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 15:12:11,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 15:12:11,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 15:12:11,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 15:12:11,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 15:12:11,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 15:12:11,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 15:12:11,821 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 15:12:11,821 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 15:12:11,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 15:12:11,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 15:12:11,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 15:12:11,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 15:12:11,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 15:12:11,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 15:12:11,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:12:11,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 15:12:11,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 15:12:11,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 15:12:11,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 15:12:11,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 15:12:11,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 15:12:11,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 15:12:11,825 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 15:12:11,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 15:12:11,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 15:12:11,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abd7c6a811fa727af1a8295486441ec66634091da13d54772e1efa33885ef21c [2024-01-27 15:12:12,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 15:12:12,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 15:12:12,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 15:12:12,057 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 15:12:12,058 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 15:12:12,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-01-27 15:12:12,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 15:12:13,223 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 15:12:13,224 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-01-27 15:12:13,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee0d1de89/f127820da23f4365860b73cee59619f4/FLAG26a19f00c [2024-01-27 15:12:13,247 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee0d1de89/f127820da23f4365860b73cee59619f4 [2024-01-27 15:12:13,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 15:12:13,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 15:12:13,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 15:12:13,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 15:12:13,262 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 15:12:13,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43729d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13, skipping insertion in model container [2024-01-27 15:12:13,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,308 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 15:12:13,434 WARN L239 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_44-traces-mine2_true.i[1089,1102] [2024-01-27 15:12:13,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:12:13,530 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 15:12:13,543 WARN L239 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_44-traces-mine2_true.i[1089,1102] [2024-01-27 15:12:13,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:12:13,610 INFO L206 MainTranslator]: Completed translation [2024-01-27 15:12:13,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13 WrapperNode [2024-01-27 15:12:13,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 15:12:13,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 15:12:13,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 15:12:13,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 15:12:13,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,662 INFO L138 Inliner]: procedures = 163, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-01-27 15:12:13,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 15:12:13,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 15:12:13,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 15:12:13,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 15:12:13,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,691 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-27 15:12:13,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 15:12:13,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 15:12:13,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 15:12:13,701 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 15:12:13,701 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (1/1) ... [2024-01-27 15:12:13,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:12:13,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 15:12:13,741 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 15:12:13,764 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 15:12:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 15:12:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 15:12:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 15:12:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 15:12:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 15:12:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 15:12:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 15:12:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-27 15:12:13,786 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-27 15:12:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 15:12:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 15:12:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 15:12:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 15:12:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 15:12:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 15:12:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 15:12:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 15:12:13,789 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 15:12:13,904 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 15:12:13,906 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 15:12:14,028 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 15:12:14,028 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 15:12:14,130 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 15:12:14,131 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 15:12:14,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:12:14 BoogieIcfgContainer [2024-01-27 15:12:14,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 15:12:14,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 15:12:14,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 15:12:14,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 15:12:14,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 03:12:13" (1/3) ... [2024-01-27 15:12:14,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4923c4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:12:14, skipping insertion in model container [2024-01-27 15:12:14,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:12:13" (2/3) ... [2024-01-27 15:12:14,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4923c4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:12:14, skipping insertion in model container [2024-01-27 15:12:14,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:12:14" (3/3) ... [2024-01-27 15:12:14,139 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2024-01-27 15:12:14,145 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 15:12:14,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 15:12:14,152 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-01-27 15:12:14,152 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 15:12:14,175 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 15:12:14,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 27 transitions, 58 flow [2024-01-27 15:12:14,220 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-01-27 15:12:14,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 15:12:14,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 26 events. 2/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2024-01-27 15:12:14,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 27 transitions, 58 flow [2024-01-27 15:12:14,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 23 transitions, 49 flow [2024-01-27 15:12:14,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 15:12:14,235 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;@6ef30cde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 15:12:14,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-01-27 15:12:14,242 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 15:12:14,242 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-01-27 15:12:14,242 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 15:12:14,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:12:14,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:12:14,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-27 15:12:14,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:12:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash 603122431, now seen corresponding path program 1 times [2024-01-27 15:12:14,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:12:14,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407492507] [2024-01-27 15:12:14,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:12:14,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:12:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:12:14,563 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 15:12:14,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:12:14,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407492507] [2024-01-27 15:12:14,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407492507] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:12:14,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:12:14,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 15:12:14,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211092741] [2024-01-27 15:12:14,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:12:14,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 15:12:14,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:12:14,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 15:12:14,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 15:12:14,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-01-27 15:12:14,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 15:12:14,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:12:14,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-01-27 15:12:14,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:12:14,724 INFO L124 PetriNetUnfolderBase]: 73/183 cut-off events. [2024-01-27 15:12:14,724 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 15:12:14,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 183 events. 73/183 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 678 event pairs, 28 based on Foata normal form. 16/192 useless extension candidates. Maximal degree in co-relation 353. Up to 65 conditions per place. [2024-01-27 15:12:14,726 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 25 selfloop transitions, 8 changer transitions 5/41 dead transitions. [2024-01-27 15:12:14,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 41 transitions, 161 flow [2024-01-27 15:12:14,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:12:14,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:12:14,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2024-01-27 15:12:14,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4740740740740741 [2024-01-27 15:12:14,737 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 5 states and 64 transitions. [2024-01-27 15:12:14,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 41 transitions, 161 flow [2024-01-27 15:12:14,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 41 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 15:12:14,741 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 102 flow [2024-01-27 15:12:14,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2024-01-27 15:12:14,745 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2024-01-27 15:12:14,745 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 102 flow [2024-01-27 15:12:14,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 15:12:14,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:12:14,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:12:14,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 15:12:14,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-27 15:12:14,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:12:14,747 INFO L85 PathProgramCache]: Analyzing trace with hash -898965594, now seen corresponding path program 1 times [2024-01-27 15:12:14,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:12:14,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480834931] [2024-01-27 15:12:14,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:12:14,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:12:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:12:14,822 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 15:12:14,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:12:14,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480834931] [2024-01-27 15:12:14,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480834931] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:12:14,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:12:14,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 15:12:14,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543086201] [2024-01-27 15:12:14,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:12:14,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 15:12:14,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:12:14,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 15:12:14,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 15:12:14,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-01-27 15:12:14,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 15:12:14,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:12:14,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-01-27 15:12:14,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:12:14,888 INFO L124 PetriNetUnfolderBase]: 21/85 cut-off events. [2024-01-27 15:12:14,888 INFO L125 PetriNetUnfolderBase]: For 38/40 co-relation queries the response was YES. [2024-01-27 15:12:14,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 85 events. 21/85 cut-off events. For 38/40 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 252 event pairs, 4 based on Foata normal form. 8/93 useless extension candidates. Maximal degree in co-relation 216. Up to 42 conditions per place. [2024-01-27 15:12:14,889 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 13 selfloop transitions, 4 changer transitions 9/32 dead transitions. [2024-01-27 15:12:14,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 172 flow [2024-01-27 15:12:14,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 15:12:14,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 15:12:14,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2024-01-27 15:12:14,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2024-01-27 15:12:14,890 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 102 flow. Second operand 3 states and 49 transitions. [2024-01-27 15:12:14,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 172 flow [2024-01-27 15:12:14,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 164 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-01-27 15:12:14,892 INFO L231 Difference]: Finished difference. Result has 34 places, 22 transitions, 78 flow [2024-01-27 15:12:14,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2024-01-27 15:12:14,893 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2024-01-27 15:12:14,893 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 78 flow [2024-01-27 15:12:14,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 15:12:14,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:12:14,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:12:14,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 15:12:14,894 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-27 15:12:14,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:12:14,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1482850724, now seen corresponding path program 1 times [2024-01-27 15:12:14,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:12:14,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575568487] [2024-01-27 15:12:14,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:12:14,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:12:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:12:15,023 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 15:12:15,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:12:15,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575568487] [2024-01-27 15:12:15,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575568487] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:12:15,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:12:15,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:12:15,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99800501] [2024-01-27 15:12:15,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:12:15,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:12:15,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:12:15,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:12:15,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:12:15,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-01-27 15:12:15,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 15:12:15,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:12:15,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-01-27 15:12:15,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:12:15,051 INFO L124 PetriNetUnfolderBase]: 6/23 cut-off events. [2024-01-27 15:12:15,053 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-27 15:12:15,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 23 events. 6/23 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 2/25 useless extension candidates. Maximal degree in co-relation 62. Up to 19 conditions per place. [2024-01-27 15:12:15,053 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2024-01-27 15:12:15,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 12 transitions, 66 flow [2024-01-27 15:12:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 15:12:15,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 15:12:15,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2024-01-27 15:12:15,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2024-01-27 15:12:15,057 INFO L175 Difference]: Start difference. First operand has 34 places, 22 transitions, 78 flow. Second operand 4 states and 44 transitions. [2024-01-27 15:12:15,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 12 transitions, 66 flow [2024-01-27 15:12:15,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 12 transitions, 51 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-27 15:12:15,058 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2024-01-27 15:12:15,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2024-01-27 15:12:15,059 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -7 predicate places. [2024-01-27 15:12:15,059 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2024-01-27 15:12:15,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 15:12:15,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-01-27 15:12:15,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-01-27 15:12:15,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-01-27 15:12:15,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 15:12:15,063 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-01-27 15:12:15,066 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 15:12:15,066 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 15:12:15,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 03:12:15 BasicIcfg [2024-01-27 15:12:15,075 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 15:12:15,076 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-01-27 15:12:15,076 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-01-27 15:12:15,076 INFO L274 PluginConnector]: Witness Printer initialized [2024-01-27 15:12:15,076 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:12:14" (3/4) ... [2024-01-27 15:12:15,078 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-01-27 15:12:15,081 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-01-27 15:12:15,085 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-01-27 15:12:15,085 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-01-27 15:12:15,085 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-01-27 15:12:15,085 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-01-27 15:12:15,153 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-01-27 15:12:15,153 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-01-27 15:12:15,153 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-01-27 15:12:15,155 INFO L158 Benchmark]: Toolchain (without parser) took 1903.42ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 64.6MB in the beginning and 79.1MB in the end (delta: -14.5MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2024-01-27 15:12:15,155 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 15:12:15,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.69ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 64.4MB in the beginning and 136.2MB in the end (delta: -71.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-01-27 15:12:15,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.65ms. Allocated memory is still 178.3MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 15:12:15,156 INFO L158 Benchmark]: Boogie Preprocessor took 36.54ms. Allocated memory is still 178.3MB. Free memory was 134.1MB in the beginning and 132.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 15:12:15,156 INFO L158 Benchmark]: RCFGBuilder took 430.34ms. Allocated memory is still 178.3MB. Free memory was 132.0MB in the beginning and 106.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-27 15:12:15,157 INFO L158 Benchmark]: TraceAbstraction took 942.40ms. Allocated memory is still 178.3MB. Free memory was 105.8MB in the beginning and 83.3MB in the end (delta: 22.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2024-01-27 15:12:15,157 INFO L158 Benchmark]: Witness Printer took 77.42ms. Allocated memory is still 178.3MB. Free memory was 83.3MB in the beginning and 79.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 15:12:15,160 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.69ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 64.4MB in the beginning and 136.2MB in the end (delta: -71.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.65ms. Allocated memory is still 178.3MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.54ms. Allocated memory is still 178.3MB. Free memory was 134.1MB in the beginning and 132.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.34ms. Allocated memory is still 178.3MB. Free memory was 132.0MB in the beginning and 106.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 942.40ms. Allocated memory is still 178.3MB. Free memory was 105.8MB in the beginning and 83.3MB in the end (delta: 22.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Witness Printer took 77.42ms. Allocated memory is still 178.3MB. Free memory was 83.3MB in the beginning and 79.1MB in the end (delta: 4.2MB). 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 - 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, 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 4 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=1, InterpolantAutomatonStates: 12, 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, 0.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 115 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 15:12:15,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE