./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe035_power.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-wmm/safe035_power.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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 16:22:58,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 16:22:59,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 16:22:59,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 16:22:59,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 16:22:59,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 16:22:59,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 16:22:59,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 16:22:59,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 16:22:59,075 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 16:22:59,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 16:22:59,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 16:22:59,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 16:22:59,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 16:22:59,078 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 16:22:59,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 16:22:59,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 16:22:59,078 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 16:22:59,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 16:22:59,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 16:22:59,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 16:22:59,080 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 16:22:59,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 16:22:59,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 16:22:59,080 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 16:22:59,080 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 16:22:59,081 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 16:22:59,081 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 16:22:59,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 16:22:59,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 16:22:59,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 16:22:59,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 16:22:59,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:22:59,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 16:22:59,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 16:22:59,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 16:22:59,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 16:22:59,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 16:22:59,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 16:22:59,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 16:22:59,084 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 16:22:59,085 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 16:22:59,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 16:22:59,085 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2024-06-27 16:22:59,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 16:22:59,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 16:22:59,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 16:22:59,316 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 16:22:59,316 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 16:22:59,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_power.i [2024-06-27 16:23:00,379 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 16:23:00,609 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 16:23:00,619 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i [2024-06-27 16:23:00,632 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e801a54d/b4dcc3d14fe346a38dd94f904aaac95a/FLAG07a8ebfe3 [2024-06-27 16:23:00,642 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e801a54d/b4dcc3d14fe346a38dd94f904aaac95a [2024-06-27 16:23:00,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 16:23:00,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-06-27 16:23:00,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 16:23:00,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 16:23:00,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 16:23:00,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:23:00" (1/1) ... [2024-06-27 16:23:00,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cbded04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:00, skipping insertion in model container [2024-06-27 16:23:00,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:23:00" (1/1) ... [2024-06-27 16:23:00,693 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 16:23:00,817 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-wmm/safe035_power.i[947,960] [2024-06-27 16:23:01,040 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:23:01,057 INFO L202 MainTranslator]: Completed pre-run [2024-06-27 16:23:01,069 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-wmm/safe035_power.i[947,960] [2024-06-27 16:23:01,140 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:23:01,184 INFO L206 MainTranslator]: Completed translation [2024-06-27 16:23:01,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01 WrapperNode [2024-06-27 16:23:01,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 16:23:01,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 16:23:01,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 16:23:01,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 16:23:01,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,301 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2024-06-27 16:23:01,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 16:23:01,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 16:23:01,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 16:23:01,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 16:23:01,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,335 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-27 16:23:01,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 16:23:01,382 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 16:23:01,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 16:23:01,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 16:23:01,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (1/1) ... [2024-06-27 16:23:01,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:23:01,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 16:23:01,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-27 16:23:01,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-27 16:23:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 16:23:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 16:23:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 16:23:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 16:23:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 16:23:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 16:23:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 16:23:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 16:23:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 16:23:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 16:23:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 16:23:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 16:23:01,553 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 16:23:01,757 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 16:23:01,759 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 16:23:02,080 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 16:23:02,081 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 16:23:02,265 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 16:23:02,265 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 16:23:02,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:23:02 BoogieIcfgContainer [2024-06-27 16:23:02,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 16:23:02,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 16:23:02,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 16:23:02,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 16:23:02,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 04:23:00" (1/3) ... [2024-06-27 16:23:02,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dab685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:23:02, skipping insertion in model container [2024-06-27 16:23:02,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:01" (2/3) ... [2024-06-27 16:23:02,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dab685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:23:02, skipping insertion in model container [2024-06-27 16:23:02,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:23:02" (3/3) ... [2024-06-27 16:23:02,277 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2024-06-27 16:23:02,283 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-06-27 16:23:02,291 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 16:23:02,291 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 16:23:02,291 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 16:23:02,334 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 16:23:02,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 96 flow [2024-06-27 16:23:02,422 INFO L124 PetriNetUnfolderBase]: 1/39 cut-off events. [2024-06-27 16:23:02,422 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:23:02,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 1/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-06-27 16:23:02,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 96 flow [2024-06-27 16:23:02,429 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 39 transitions, 87 flow [2024-06-27 16:23:02,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 16:23:02,447 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;@13cdd65d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 16:23:02,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-27 16:23:02,456 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 16:23:02,457 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-06-27 16:23:02,457 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:23:02,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:02,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:02,458 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:02,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:02,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1597382317, now seen corresponding path program 1 times [2024-06-27 16:23:02,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:02,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312252741] [2024-06-27 16:23:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:02,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:02,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:02,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:02,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312252741] [2024-06-27 16:23:02,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312252741] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:02,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:02,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 16:23:02,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629601612] [2024-06-27 16:23:02,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:02,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 16:23:02,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:02,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 16:23:02,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 16:23:02,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-06-27 16:23:02,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:02,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:02,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-06-27 16:23:02,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:03,365 INFO L124 PetriNetUnfolderBase]: 1951/3088 cut-off events. [2024-06-27 16:23:03,366 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-06-27 16:23:03,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5983 conditions, 3088 events. 1951/3088 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 18887 event pairs, 266 based on Foata normal form. 120/3172 useless extension candidates. Maximal degree in co-relation 5972. Up to 2386 conditions per place. [2024-06-27 16:23:03,386 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 33 selfloop transitions, 2 changer transitions 2/50 dead transitions. [2024-06-27 16:23:03,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 183 flow [2024-06-27 16:23:03,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 16:23:03,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 16:23:03,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-06-27 16:23:03,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6984126984126984 [2024-06-27 16:23:03,398 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 88 transitions. [2024-06-27 16:23:03,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 183 flow [2024-06-27 16:23:03,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 180 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 16:23:03,407 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-06-27 16:23:03,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-06-27 16:23:03,413 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2024-06-27 16:23:03,413 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-06-27 16:23:03,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:03,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:03,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:03,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 16:23:03,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:03,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:03,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1890798407, now seen corresponding path program 1 times [2024-06-27 16:23:03,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:03,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498081595] [2024-06-27 16:23:03,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:03,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:03,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:03,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:03,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498081595] [2024-06-27 16:23:03,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498081595] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:03,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:03,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 16:23:03,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362286777] [2024-06-27 16:23:03,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:03,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 16:23:03,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:03,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 16:23:03,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 16:23:03,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2024-06-27 16:23:03,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:03,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:03,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2024-06-27 16:23:03,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:04,272 INFO L124 PetriNetUnfolderBase]: 2423/3832 cut-off events. [2024-06-27 16:23:04,273 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-06-27 16:23:04,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7578 conditions, 3832 events. 2423/3832 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 24159 event pairs, 661 based on Foata normal form. 0/3748 useless extension candidates. Maximal degree in co-relation 7568. Up to 1372 conditions per place. [2024-06-27 16:23:04,286 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 32 selfloop transitions, 2 changer transitions 53/98 dead transitions. [2024-06-27 16:23:04,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 98 transitions, 384 flow [2024-06-27 16:23:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:23:04,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:23:04,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 201 transitions. [2024-06-27 16:23:04,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5982142857142857 [2024-06-27 16:23:04,289 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 8 states and 201 transitions. [2024-06-27 16:23:04,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 98 transitions, 384 flow [2024-06-27 16:23:04,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 98 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 16:23:04,291 INFO L231 Difference]: Finished difference. Result has 55 places, 35 transitions, 92 flow [2024-06-27 16:23:04,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=92, PETRI_PLACES=55, PETRI_TRANSITIONS=35} [2024-06-27 16:23:04,292 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2024-06-27 16:23:04,292 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 35 transitions, 92 flow [2024-06-27 16:23:04,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:04,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:04,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:04,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 16:23:04,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:04,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:04,293 INFO L85 PathProgramCache]: Analyzing trace with hash 286561760, now seen corresponding path program 1 times [2024-06-27 16:23:04,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:04,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919892054] [2024-06-27 16:23:04,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:04,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:05,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:05,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919892054] [2024-06-27 16:23:05,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919892054] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:05,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:05,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 16:23:05,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840150945] [2024-06-27 16:23:05,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:05,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 16:23:05,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:05,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 16:23:05,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-06-27 16:23:05,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-06-27 16:23:05,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 35 transitions, 92 flow. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:05,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:05,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-06-27 16:23:05,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:06,317 INFO L124 PetriNetUnfolderBase]: 3696/5840 cut-off events. [2024-06-27 16:23:06,318 INFO L125 PetriNetUnfolderBase]: For 737/737 co-relation queries the response was YES. [2024-06-27 16:23:06,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12641 conditions, 5840 events. 3696/5840 cut-off events. For 737/737 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 37439 event pairs, 458 based on Foata normal form. 135/5957 useless extension candidates. Maximal degree in co-relation 12626. Up to 2464 conditions per place. [2024-06-27 16:23:06,339 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 52 selfloop transitions, 16 changer transitions 47/125 dead transitions. [2024-06-27 16:23:06,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 125 transitions, 518 flow [2024-06-27 16:23:06,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-27 16:23:06,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-27 16:23:06,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 247 transitions. [2024-06-27 16:23:06,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5880952380952381 [2024-06-27 16:23:06,341 INFO L175 Difference]: Start difference. First operand has 55 places, 35 transitions, 92 flow. Second operand 10 states and 247 transitions. [2024-06-27 16:23:06,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 125 transitions, 518 flow [2024-06-27 16:23:06,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 125 transitions, 494 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-06-27 16:23:06,380 INFO L231 Difference]: Finished difference. Result has 59 places, 49 transitions, 208 flow [2024-06-27 16:23:06,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=208, PETRI_PLACES=59, PETRI_TRANSITIONS=49} [2024-06-27 16:23:06,381 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-06-27 16:23:06,381 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 49 transitions, 208 flow [2024-06-27 16:23:06,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:06,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:06,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:06,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 16:23:06,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:06,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:06,383 INFO L85 PathProgramCache]: Analyzing trace with hash -718729626, now seen corresponding path program 2 times [2024-06-27 16:23:06,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:06,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925252954] [2024-06-27 16:23:06,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:06,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:06,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:06,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:06,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925252954] [2024-06-27 16:23:06,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925252954] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:06,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:06,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 16:23:06,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314310257] [2024-06-27 16:23:06,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:06,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 16:23:06,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:06,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 16:23:06,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-27 16:23:06,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-06-27 16:23:06,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 49 transitions, 208 flow. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:06,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:06,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-06-27 16:23:06,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:07,766 INFO L124 PetriNetUnfolderBase]: 3696/5887 cut-off events. [2024-06-27 16:23:07,766 INFO L125 PetriNetUnfolderBase]: For 6370/6390 co-relation queries the response was YES. [2024-06-27 16:23:07,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18341 conditions, 5887 events. 3696/5887 cut-off events. For 6370/6390 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 38094 event pairs, 421 based on Foata normal form. 75/5944 useless extension candidates. Maximal degree in co-relation 18323. Up to 3937 conditions per place. [2024-06-27 16:23:07,793 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 49 selfloop transitions, 36 changer transitions 22/117 dead transitions. [2024-06-27 16:23:07,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 117 transitions, 750 flow [2024-06-27 16:23:07,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:23:07,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:23:07,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 199 transitions. [2024-06-27 16:23:07,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5922619047619048 [2024-06-27 16:23:07,794 INFO L175 Difference]: Start difference. First operand has 59 places, 49 transitions, 208 flow. Second operand 8 states and 199 transitions. [2024-06-27 16:23:07,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 117 transitions, 750 flow [2024-06-27 16:23:07,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 117 transitions, 732 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-06-27 16:23:07,806 INFO L231 Difference]: Finished difference. Result has 63 places, 76 transitions, 505 flow [2024-06-27 16:23:07,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=505, PETRI_PLACES=63, PETRI_TRANSITIONS=76} [2024-06-27 16:23:07,806 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-06-27 16:23:07,807 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 76 transitions, 505 flow [2024-06-27 16:23:07,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:07,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:07,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:07,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 16:23:07,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:07,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:07,808 INFO L85 PathProgramCache]: Analyzing trace with hash -778271493, now seen corresponding path program 1 times [2024-06-27 16:23:07,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:07,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494891241] [2024-06-27 16:23:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:07,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:08,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:08,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494891241] [2024-06-27 16:23:08,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494891241] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:08,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:08,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 16:23:08,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605210051] [2024-06-27 16:23:08,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:08,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 16:23:08,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:08,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 16:23:08,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-06-27 16:23:08,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-06-27 16:23:08,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 76 transitions, 505 flow. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:08,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:08,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-06-27 16:23:08,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:09,734 INFO L124 PetriNetUnfolderBase]: 4812/7687 cut-off events. [2024-06-27 16:23:09,734 INFO L125 PetriNetUnfolderBase]: For 15066/15096 co-relation queries the response was YES. [2024-06-27 16:23:09,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28541 conditions, 7687 events. 4812/7687 cut-off events. For 15066/15096 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 52014 event pairs, 599 based on Foata normal form. 154/7823 useless extension candidates. Maximal degree in co-relation 28520. Up to 3084 conditions per place. [2024-06-27 16:23:09,767 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 61 selfloop transitions, 22 changer transitions 88/181 dead transitions. [2024-06-27 16:23:09,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 181 transitions, 1495 flow [2024-06-27 16:23:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-27 16:23:09,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-27 16:23:09,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 305 transitions. [2024-06-27 16:23:09,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5586080586080586 [2024-06-27 16:23:09,769 INFO L175 Difference]: Start difference. First operand has 63 places, 76 transitions, 505 flow. Second operand 13 states and 305 transitions. [2024-06-27 16:23:09,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 181 transitions, 1495 flow [2024-06-27 16:23:09,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 181 transitions, 1421 flow, removed 37 selfloop flow, removed 2 redundant places. [2024-06-27 16:23:09,805 INFO L231 Difference]: Finished difference. Result has 79 places, 70 transitions, 530 flow [2024-06-27 16:23:09,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=530, PETRI_PLACES=79, PETRI_TRANSITIONS=70} [2024-06-27 16:23:09,806 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 31 predicate places. [2024-06-27 16:23:09,806 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 70 transitions, 530 flow [2024-06-27 16:23:09,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:09,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:09,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:09,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 16:23:09,807 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:09,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:09,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1422666393, now seen corresponding path program 1 times [2024-06-27 16:23:09,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:09,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992565624] [2024-06-27 16:23:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:09,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:09,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:09,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:09,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992565624] [2024-06-27 16:23:09,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992565624] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:09,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:09,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 16:23:09,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141099771] [2024-06-27 16:23:09,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:09,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 16:23:09,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:09,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 16:23:09,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 16:23:09,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-06-27 16:23:09,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 530 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:09,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:09,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-06-27 16:23:09,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:10,363 INFO L124 PetriNetUnfolderBase]: 2408/3894 cut-off events. [2024-06-27 16:23:10,364 INFO L125 PetriNetUnfolderBase]: For 17901/17910 co-relation queries the response was YES. [2024-06-27 16:23:10,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16364 conditions, 3894 events. 2408/3894 cut-off events. For 17901/17910 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 21864 event pairs, 254 based on Foata normal form. 213/4102 useless extension candidates. Maximal degree in co-relation 16335. Up to 1980 conditions per place. [2024-06-27 16:23:10,386 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 84 selfloop transitions, 5 changer transitions 0/102 dead transitions. [2024-06-27 16:23:10,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 102 transitions, 964 flow [2024-06-27 16:23:10,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 16:23:10,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 16:23:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2024-06-27 16:23:10,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-06-27 16:23:10,388 INFO L175 Difference]: Start difference. First operand has 79 places, 70 transitions, 530 flow. Second operand 4 states and 108 transitions. [2024-06-27 16:23:10,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 102 transitions, 964 flow [2024-06-27 16:23:10,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 102 transitions, 909 flow, removed 10 selfloop flow, removed 10 redundant places. [2024-06-27 16:23:10,404 INFO L231 Difference]: Finished difference. Result has 68 places, 67 transitions, 469 flow [2024-06-27 16:23:10,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=469, PETRI_PLACES=68, PETRI_TRANSITIONS=67} [2024-06-27 16:23:10,405 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 20 predicate places. [2024-06-27 16:23:10,405 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 67 transitions, 469 flow [2024-06-27 16:23:10,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:10,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:10,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:10,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 16:23:10,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:10,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:10,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1620043430, now seen corresponding path program 1 times [2024-06-27 16:23:10,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:10,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006693043] [2024-06-27 16:23:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:10,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:10,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:10,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006693043] [2024-06-27 16:23:10,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006693043] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:10,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:10,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 16:23:10,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092440931] [2024-06-27 16:23:10,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:10,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 16:23:10,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:10,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 16:23:10,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 16:23:10,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-06-27 16:23:10,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:10,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:10,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-06-27 16:23:10,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:10,934 INFO L124 PetriNetUnfolderBase]: 1722/2864 cut-off events. [2024-06-27 16:23:10,934 INFO L125 PetriNetUnfolderBase]: For 12069/12074 co-relation queries the response was YES. [2024-06-27 16:23:10,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11935 conditions, 2864 events. 1722/2864 cut-off events. For 12069/12074 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 15259 event pairs, 213 based on Foata normal form. 147/3006 useless extension candidates. Maximal degree in co-relation 11910. Up to 903 conditions per place. [2024-06-27 16:23:10,955 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 82 selfloop transitions, 8 changer transitions 0/102 dead transitions. [2024-06-27 16:23:10,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 102 transitions, 922 flow [2024-06-27 16:23:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 16:23:10,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 16:23:10,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-06-27 16:23:10,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6238095238095238 [2024-06-27 16:23:10,957 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 469 flow. Second operand 5 states and 131 transitions. [2024-06-27 16:23:10,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 102 transitions, 922 flow [2024-06-27 16:23:10,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 102 transitions, 864 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-06-27 16:23:10,967 INFO L231 Difference]: Finished difference. Result has 68 places, 64 transitions, 418 flow [2024-06-27 16:23:10,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=418, PETRI_PLACES=68, PETRI_TRANSITIONS=64} [2024-06-27 16:23:10,968 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 20 predicate places. [2024-06-27 16:23:10,968 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 64 transitions, 418 flow [2024-06-27 16:23:10,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:10,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:10,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:10,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 16:23:10,969 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:10,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:10,970 INFO L85 PathProgramCache]: Analyzing trace with hash -292454874, now seen corresponding path program 1 times [2024-06-27 16:23:10,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:10,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117166814] [2024-06-27 16:23:10,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:10,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:11,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:11,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117166814] [2024-06-27 16:23:11,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117166814] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:11,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:11,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 16:23:11,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329448807] [2024-06-27 16:23:11,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:11,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 16:23:11,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:11,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 16:23:11,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 16:23:11,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-06-27 16:23:11,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 64 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 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 16:23:11,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:11,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-06-27 16:23:11,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:11,426 INFO L124 PetriNetUnfolderBase]: 1394/2312 cut-off events. [2024-06-27 16:23:11,427 INFO L125 PetriNetUnfolderBase]: For 11416/11421 co-relation queries the response was YES. [2024-06-27 16:23:11,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10087 conditions, 2312 events. 1394/2312 cut-off events. For 11416/11421 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 11946 event pairs, 219 based on Foata normal form. 57/2364 useless extension candidates. Maximal degree in co-relation 10062. Up to 903 conditions per place. [2024-06-27 16:23:11,439 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 75 selfloop transitions, 11 changer transitions 0/98 dead transitions. [2024-06-27 16:23:11,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 98 transitions, 823 flow [2024-06-27 16:23:11,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 16:23:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 16:23:11,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2024-06-27 16:23:11,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5515873015873016 [2024-06-27 16:23:11,441 INFO L175 Difference]: Start difference. First operand has 68 places, 64 transitions, 418 flow. Second operand 6 states and 139 transitions. [2024-06-27 16:23:11,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 98 transitions, 823 flow [2024-06-27 16:23:11,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 98 transitions, 781 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-06-27 16:23:11,449 INFO L231 Difference]: Finished difference. Result has 72 places, 65 transitions, 423 flow [2024-06-27 16:23:11,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=423, PETRI_PLACES=72, PETRI_TRANSITIONS=65} [2024-06-27 16:23:11,453 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 24 predicate places. [2024-06-27 16:23:11,453 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 65 transitions, 423 flow [2024-06-27 16:23:11,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 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 16:23:11,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:11,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:11,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 16:23:11,454 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:11,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:11,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1285124433, now seen corresponding path program 1 times [2024-06-27 16:23:11,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:11,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915596969] [2024-06-27 16:23:11,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:11,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:11,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:11,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:11,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915596969] [2024-06-27 16:23:11,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915596969] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:11,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:11,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:23:11,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111153302] [2024-06-27 16:23:11,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:11,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 16:23:11,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:11,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 16:23:11,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-06-27 16:23:11,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-06-27 16:23:11,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 65 transitions, 423 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:11,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:11,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-06-27 16:23:11,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:12,012 INFO L124 PetriNetUnfolderBase]: 1193/2215 cut-off events. [2024-06-27 16:23:12,013 INFO L125 PetriNetUnfolderBase]: For 7578/8116 co-relation queries the response was YES. [2024-06-27 16:23:12,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8538 conditions, 2215 events. 1193/2215 cut-off events. For 7578/8116 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 13890 event pairs, 221 based on Foata normal form. 58/2062 useless extension candidates. Maximal degree in co-relation 8512. Up to 1122 conditions per place. [2024-06-27 16:23:12,022 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 37 selfloop transitions, 1 changer transitions 40/97 dead transitions. [2024-06-27 16:23:12,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 97 transitions, 754 flow [2024-06-27 16:23:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 16:23:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 16:23:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-06-27 16:23:12,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2024-06-27 16:23:12,024 INFO L175 Difference]: Start difference. First operand has 72 places, 65 transitions, 423 flow. Second operand 6 states and 130 transitions. [2024-06-27 16:23:12,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 97 transitions, 754 flow [2024-06-27 16:23:12,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 97 transitions, 682 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-06-27 16:23:12,035 INFO L231 Difference]: Finished difference. Result has 76 places, 46 transitions, 266 flow [2024-06-27 16:23:12,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=266, PETRI_PLACES=76, PETRI_TRANSITIONS=46} [2024-06-27 16:23:12,036 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 28 predicate places. [2024-06-27 16:23:12,037 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 46 transitions, 266 flow [2024-06-27 16:23:12,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:12,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:12,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:12,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 16:23:12,037 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:12,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:12,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1496151049, now seen corresponding path program 2 times [2024-06-27 16:23:12,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:12,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704438055] [2024-06-27 16:23:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:12,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:13,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:13,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704438055] [2024-06-27 16:23:13,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704438055] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:13,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:13,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 16:23:13,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011268794] [2024-06-27 16:23:13,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:13,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 16:23:13,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:13,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 16:23:13,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-06-27 16:23:13,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-06-27 16:23:13,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 46 transitions, 266 flow. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:13,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:13,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-06-27 16:23:13,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:13,686 INFO L124 PetriNetUnfolderBase]: 832/1652 cut-off events. [2024-06-27 16:23:13,687 INFO L125 PetriNetUnfolderBase]: For 3008/3229 co-relation queries the response was YES. [2024-06-27 16:23:13,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5568 conditions, 1652 events. 832/1652 cut-off events. For 3008/3229 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 10649 event pairs, 231 based on Foata normal form. 32/1543 useless extension candidates. Maximal degree in co-relation 5541. Up to 781 conditions per place. [2024-06-27 16:23:13,700 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 30 selfloop transitions, 5 changer transitions 15/69 dead transitions. [2024-06-27 16:23:13,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 69 transitions, 461 flow [2024-06-27 16:23:13,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:23:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:23:13,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2024-06-27 16:23:13,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45535714285714285 [2024-06-27 16:23:13,702 INFO L175 Difference]: Start difference. First operand has 76 places, 46 transitions, 266 flow. Second operand 8 states and 153 transitions. [2024-06-27 16:23:13,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 69 transitions, 461 flow [2024-06-27 16:23:13,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 69 transitions, 393 flow, removed 23 selfloop flow, removed 12 redundant places. [2024-06-27 16:23:13,711 INFO L231 Difference]: Finished difference. Result has 72 places, 48 transitions, 259 flow [2024-06-27 16:23:13,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=259, PETRI_PLACES=72, PETRI_TRANSITIONS=48} [2024-06-27 16:23:13,712 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 24 predicate places. [2024-06-27 16:23:13,712 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 48 transitions, 259 flow [2024-06-27 16:23:13,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:13,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:13,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:13,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 16:23:13,713 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-06-27 16:23:13,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:13,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1478503847, now seen corresponding path program 3 times [2024-06-27 16:23:13,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:13,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440227534] [2024-06-27 16:23:13,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:13,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:14,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:14,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:14,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440227534] [2024-06-27 16:23:14,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440227534] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:14,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:14,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-06-27 16:23:14,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556749007] [2024-06-27 16:23:14,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:14,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-27 16:23:14,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:14,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-27 16:23:14,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-06-27 16:23:14,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-06-27 16:23:14,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 48 transitions, 259 flow. Second operand has 11 states, 11 states have (on average 15.0) internal successors, (165), 11 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:14,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:14,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-06-27 16:23:14,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:15,034 INFO L124 PetriNetUnfolderBase]: 735/1521 cut-off events. [2024-06-27 16:23:15,035 INFO L125 PetriNetUnfolderBase]: For 2224/2413 co-relation queries the response was YES. [2024-06-27 16:23:15,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4886 conditions, 1521 events. 735/1521 cut-off events. For 2224/2413 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 10218 event pairs, 148 based on Foata normal form. 35/1412 useless extension candidates. Maximal degree in co-relation 4869. Up to 739 conditions per place. [2024-06-27 16:23:15,041 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2024-06-27 16:23:15,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 65 transitions, 421 flow [2024-06-27 16:23:15,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:23:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:23:15,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 148 transitions. [2024-06-27 16:23:15,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-06-27 16:23:15,042 INFO L175 Difference]: Start difference. First operand has 72 places, 48 transitions, 259 flow. Second operand 8 states and 148 transitions. [2024-06-27 16:23:15,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 65 transitions, 421 flow [2024-06-27 16:23:15,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 65 transitions, 397 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-06-27 16:23:15,048 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2024-06-27 16:23:15,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2024-06-27 16:23:15,049 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 20 predicate places. [2024-06-27 16:23:15,049 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2024-06-27 16:23:15,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.0) internal successors, (165), 11 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:15,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-06-27 16:23:15,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-06-27 16:23:15,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-06-27 16:23:15,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-27 16:23:15,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-27 16:23:15,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-06-27 16:23:15,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 16:23:15,053 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:15,056 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 16:23:15,056 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 16:23:15,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 04:23:15 BasicIcfg [2024-06-27 16:23:15,060 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 16:23:15,060 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-06-27 16:23:15,060 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-06-27 16:23:15,061 INFO L274 PluginConnector]: Witness Printer initialized [2024-06-27 16:23:15,061 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:23:02" (3/4) ... [2024-06-27 16:23:15,062 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-06-27 16:23:15,064 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-06-27 16:23:15,064 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-06-27 16:23:15,064 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-06-27 16:23:15,068 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 88 nodes and edges [2024-06-27 16:23:15,069 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-06-27 16:23:15,069 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-06-27 16:23:15,069 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-06-27 16:23:15,149 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-06-27 16:23:15,149 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-06-27 16:23:15,149 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-06-27 16:23:15,150 INFO L158 Benchmark]: Toolchain (without parser) took 14504.06ms. Allocated memory was 176.2MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 116.1MB in the beginning and 638.9MB in the end (delta: -522.8MB). Peak memory consumption was 729.5MB. Max. memory is 16.1GB. [2024-06-27 16:23:15,150 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 135.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 16:23:15,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 538.10ms. Allocated memory is still 176.2MB. Free memory was 115.8MB in the beginning and 87.0MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-27 16:23:15,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.92ms. Allocated memory was 176.2MB in the beginning and 272.6MB in the end (delta: 96.5MB). Free memory was 87.0MB in the beginning and 240.3MB in the end (delta: -153.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-06-27 16:23:15,151 INFO L158 Benchmark]: Boogie Preprocessor took 79.57ms. Allocated memory is still 272.6MB. Free memory was 240.3MB in the beginning and 235.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-06-27 16:23:15,151 INFO L158 Benchmark]: RCFGBuilder took 883.91ms. Allocated memory is still 272.6MB. Free memory was 235.1MB in the beginning and 160.6MB in the end (delta: 74.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2024-06-27 16:23:15,152 INFO L158 Benchmark]: TraceAbstraction took 12791.29ms. Allocated memory was 272.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 160.6MB in the beginning and 644.1MB in the end (delta: -483.5MB). Peak memory consumption was 673.1MB. Max. memory is 16.1GB. [2024-06-27 16:23:15,152 INFO L158 Benchmark]: Witness Printer took 89.14ms. Allocated memory is still 1.4GB. Free memory was 644.1MB in the beginning and 638.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 16:23:15,154 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 135.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 538.10ms. Allocated memory is still 176.2MB. Free memory was 115.8MB in the beginning and 87.0MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.92ms. Allocated memory was 176.2MB in the beginning and 272.6MB in the end (delta: 96.5MB). Free memory was 87.0MB in the beginning and 240.3MB in the end (delta: -153.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.57ms. Allocated memory is still 272.6MB. Free memory was 240.3MB in the beginning and 235.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 883.91ms. Allocated memory is still 272.6MB. Free memory was 235.1MB in the beginning and 160.6MB in the end (delta: 74.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * TraceAbstraction took 12791.29ms. Allocated memory was 272.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 160.6MB in the beginning and 644.1MB in the end (delta: -483.5MB). Peak memory consumption was 673.1MB. Max. memory is 16.1GB. * Witness Printer took 89.14ms. Allocated memory is still 1.4GB. Free memory was 644.1MB in the beginning and 638.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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: 18]: 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 7 procedures, 70 locations, 6 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: 12.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 637 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 620 mSDsluCounter, 230 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 205 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2409 IncrementalHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 25 mSDtfsCounter, 2409 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=530occurred in iteration=5, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 1668 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2024-06-27 16:23:15,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE