./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread/reorder_5.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 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 17:23:01,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 17:23:01,698 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 17:23:01,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 17:23:01,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 17:23:01,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 17:23:01,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 17:23:01,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 17:23:01,769 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 17:23:01,772 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 17:23:01,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 17:23:01,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 17:23:01,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 17:23:01,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 17:23:01,775 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 17:23:01,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 17:23:01,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 17:23:01,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 17:23:01,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 17:23:01,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 17:23:01,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 17:23:01,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 17:23:01,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 17:23:01,778 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 17:23:01,778 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 17:23:01,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 17:23:01,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 17:23:01,779 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 17:23:01,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 17:23:01,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 17:23:01,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 17:23:01,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 17:23:01,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 17:23:01,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 17:23:01,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 17:23:01,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 17:23:01,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 17:23:01,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 17:23:01,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 17:23:01,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 17:23:01,782 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 17:23:01,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 17:23:01,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 17:23:01,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd [2024-06-27 17:23:02,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 17:23:02,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 17:23:02,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 17:23:02,055 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 17:23:02,055 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 17:23:02,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/reorder_5.i [2024-06-27 17:23:03,126 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 17:23:03,369 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 17:23:03,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/reorder_5.i [2024-06-27 17:23:03,401 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559dc33a4/bd86307c099e449b812a2fe8f975fd37/FLAG7da2b915f [2024-06-27 17:23:03,412 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559dc33a4/bd86307c099e449b812a2fe8f975fd37 [2024-06-27 17:23:03,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 17:23:03,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-06-27 17:23:03,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 17:23:03,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 17:23:03,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 17:23:03,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 05:23:03" (1/1) ... [2024-06-27 17:23:03,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14738720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:03, skipping insertion in model container [2024-06-27 17:23:03,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 05:23:03" (1/1) ... [2024-06-27 17:23:03,485 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 17:23:03,976 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/reorder_5.i[59755,59768] [2024-06-27 17:23:03,982 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 17:23:03,990 INFO L202 MainTranslator]: Completed pre-run [2024-06-27 17:23:04,044 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/reorder_5.i[59755,59768] [2024-06-27 17:23:04,044 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 17:23:04,119 INFO L206 MainTranslator]: Completed translation [2024-06-27 17:23:04,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04 WrapperNode [2024-06-27 17:23:04,119 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 17:23:04,121 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 17:23:04,121 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 17:23:04,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 17:23:04,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,175 INFO L138 Inliner]: procedures = 371, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 121 [2024-06-27 17:23:04,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 17:23:04,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 17:23:04,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 17:23:04,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 17:23:04,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,192 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,209 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]. [2024-06-27 17:23:04,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,220 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 17:23:04,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 17:23:04,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 17:23:04,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 17:23:04,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (1/1) ... [2024-06-27 17:23:04,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 17:23:04,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 17:23:04,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-27 17:23:04,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-27 17:23:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 17:23:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-06-27 17:23:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-06-27 17:23:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 17:23:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-27 17:23:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-27 17:23:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-06-27 17:23:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-06-27 17:23:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-06-27 17:23:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-27 17:23:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-27 17:23:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-06-27 17:23:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 17:23:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-06-27 17:23:04,360 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-06-27 17:23:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 17:23:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 17:23:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 17:23:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 17:23:04,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 17:23:04,362 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 17:23:04,490 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 17:23:04,492 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 17:23:04,668 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 17:23:04,668 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 17:23:04,803 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 17:23:04,803 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-27 17:23:04,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 05:23:04 BoogieIcfgContainer [2024-06-27 17:23:04,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 17:23:04,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 17:23:04,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 17:23:04,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 17:23:04,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 05:23:03" (1/3) ... [2024-06-27 17:23:04,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4440ccf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 05:23:04, skipping insertion in model container [2024-06-27 17:23:04,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:23:04" (2/3) ... [2024-06-27 17:23:04,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4440ccf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 05:23:04, skipping insertion in model container [2024-06-27 17:23:04,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 05:23:04" (3/3) ... [2024-06-27 17:23:04,809 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2024-06-27 17:23:04,815 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-06-27 17:23:04,822 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 17:23:04,822 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-27 17:23:04,822 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 17:23:04,869 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-27 17:23:04,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 33 transitions, 86 flow [2024-06-27 17:23:04,938 INFO L124 PetriNetUnfolderBase]: 10/72 cut-off events. [2024-06-27 17:23:04,938 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-06-27 17:23:04,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 72 events. 10/72 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 281 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 38. Up to 7 conditions per place. [2024-06-27 17:23:04,942 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 33 transitions, 86 flow [2024-06-27 17:23:04,945 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 31 transitions, 76 flow [2024-06-27 17:23:04,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 17:23:04,962 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;@25d1023e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 17:23:04,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-27 17:23:04,968 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 17:23:04,968 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-06-27 17:23:04,968 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 17:23:04,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:23:04,969 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-06-27 17:23:04,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 17:23:04,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:23:04,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1899581443, now seen corresponding path program 1 times [2024-06-27 17:23:04,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:23:04,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604993038] [2024-06-27 17:23:04,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:23:04,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:23:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-06-27 17:23:05,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-06-27 17:23:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-06-27 17:23:05,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-06-27 17:23:05,198 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-06-27 17:23:05,199 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-06-27 17:23:05,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-06-27 17:23:05,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-27 17:23:05,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-06-27 17:23:05,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 17:23:05,202 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-06-27 17:23:05,205 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-06-27 17:23:05,205 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-06-27 17:23:05,237 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-06-27 17:23:05,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 51 transitions, 146 flow [2024-06-27 17:23:05,295 INFO L124 PetriNetUnfolderBase]: 63/259 cut-off events. [2024-06-27 17:23:05,298 INFO L125 PetriNetUnfolderBase]: For 72/79 co-relation queries the response was YES. [2024-06-27 17:23:05,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 259 events. 63/259 cut-off events. For 72/79 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1388 event pairs, 2 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 173. Up to 32 conditions per place. [2024-06-27 17:23:05,303 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 51 transitions, 146 flow [2024-06-27 17:23:05,305 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 51 transitions, 146 flow [2024-06-27 17:23:05,307 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 17:23:05,307 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;@25d1023e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 17:23:05,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-06-27 17:23:05,319 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 17:23:05,321 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2024-06-27 17:23:05,321 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-27 17:23:05,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:23:05,321 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-06-27 17:23:05,322 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 17:23:05,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:23:05,323 INFO L85 PathProgramCache]: Analyzing trace with hash 939220890, now seen corresponding path program 1 times [2024-06-27 17:23:05,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:23:05,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601505562] [2024-06-27 17:23:05,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:23:05,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:23:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-06-27 17:23:05,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-06-27 17:23:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-06-27 17:23:05,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-06-27 17:23:05,406 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-06-27 17:23:05,406 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-06-27 17:23:05,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-06-27 17:23:05,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-06-27 17:23:05,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-06-27 17:23:05,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-06-27 17:23:05,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 17:23:05,408 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-06-27 17:23:05,408 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-06-27 17:23:05,408 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-06-27 17:23:05,442 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-06-27 17:23:05,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 69 transitions, 210 flow [2024-06-27 17:23:05,534 INFO L124 PetriNetUnfolderBase]: 348/950 cut-off events. [2024-06-27 17:23:05,535 INFO L125 PetriNetUnfolderBase]: For 419/437 co-relation queries the response was YES. [2024-06-27 17:23:05,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 950 events. 348/950 cut-off events. For 419/437 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5577 event pairs, 32 based on Foata normal form. 0/778 useless extension candidates. Maximal degree in co-relation 681. Up to 192 conditions per place. [2024-06-27 17:23:05,540 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 69 transitions, 210 flow [2024-06-27 17:23:05,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 69 transitions, 210 flow [2024-06-27 17:23:05,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 17:23:05,551 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;@25d1023e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 17:23:05,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-27 17:23:05,557 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 17:23:05,557 INFO L124 PetriNetUnfolderBase]: 3/59 cut-off events. [2024-06-27 17:23:05,557 INFO L125 PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES. [2024-06-27 17:23:05,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:23:05,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:23:05,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 17:23:05,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:23:05,558 INFO L85 PathProgramCache]: Analyzing trace with hash -579051419, now seen corresponding path program 1 times [2024-06-27 17:23:05,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:23:05,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065640111] [2024-06-27 17:23:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:23:05,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:23:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:23:05,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:23:05,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:23:05,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065640111] [2024-06-27 17:23:05,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065640111] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:23:05,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:23:05,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 17:23:05,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992824392] [2024-06-27 17:23:05,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:23:05,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 17:23:05,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:23:05,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 17:23:05,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 17:23:05,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 69 [2024-06-27 17:23:05,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 69 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:23:05,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:23:05,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 69 [2024-06-27 17:23:05,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand