./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.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/safe005_tso.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 0f4fff0b2b9fbf3a1c21190a7a3a2488ff184faa22678fe9af5f2740e4422fce --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 16:22:26,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 16:22:26,266 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 16:22:26,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 16:22:26,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 16:22:26,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 16:22:26,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 16:22:26,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 16:22:26,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 16:22:26,302 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 16:22:26,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 16:22:26,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 16:22:26,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 16:22:26,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 16:22:26,305 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 16:22:26,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 16:22:26,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 16:22:26,306 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 16:22:26,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 16:22:26,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 16:22:26,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 16:22:26,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 16:22:26,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 16:22:26,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 16:22:26,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 16:22:26,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 16:22:26,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 16:22:26,308 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 16:22:26,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 16:22:26,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 16:22:26,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 16:22:26,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 16:22:26,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:22:26,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 16:22:26,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 16:22:26,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 16:22:26,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 16:22:26,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 16:22:26,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 16:22:26,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 16:22:26,311 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 16:22:26,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 16:22:26,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 16:22:26,312 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f4fff0b2b9fbf3a1c21190a7a3a2488ff184faa22678fe9af5f2740e4422fce [2024-06-27 16:22:26,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 16:22:26,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 16:22:26,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 16:22:26,588 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 16:22:26,588 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 16:22:26,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.i [2024-06-27 16:22:27,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 16:22:27,927 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 16:22:27,927 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.i [2024-06-27 16:22:27,945 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09fd5897c/d0d7792a0f28496b9a579cf32ecb433e/FLAG4ca105ebd [2024-06-27 16:22:27,958 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09fd5897c/d0d7792a0f28496b9a579cf32ecb433e [2024-06-27 16:22:27,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 16:22:27,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-06-27 16:22:27,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 16:22:27,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 16:22:27,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 16:22:27,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:22:27" (1/1) ... [2024-06-27 16:22:27,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d7c8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:27, skipping insertion in model container [2024-06-27 16:22:27,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:22:27" (1/1) ... [2024-06-27 16:22:28,015 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 16:22:28,178 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/safe005_tso.i[945,958] [2024-06-27 16:22:28,357 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:22:28,365 INFO L202 MainTranslator]: Completed pre-run [2024-06-27 16:22:28,377 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/safe005_tso.i[945,958] [2024-06-27 16:22:28,407 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:22:28,447 INFO L206 MainTranslator]: Completed translation [2024-06-27 16:22:28,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28 WrapperNode [2024-06-27 16:22:28,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 16:22:28,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 16:22:28,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 16:22:28,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 16:22:28,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,485 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-06-27 16:22:28,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 16:22:28,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 16:22:28,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 16:22:28,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 16:22:28,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,519 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 16:22:28,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,527 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 16:22:28,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 16:22:28,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 16:22:28,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 16:22:28,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (1/1) ... [2024-06-27 16:22:28,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:22:28,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 16:22:28,565 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 16:22:28,581 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 16:22:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 16:22:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 16:22:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 16:22:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 16:22:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 16:22:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 16:22:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 16:22:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 16:22:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 16:22:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 16:22:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 16:22:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 16:22:28,612 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 16:22:28,742 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 16:22:28,744 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 16:22:28,861 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 16:22:28,861 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 16:22:28,918 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 16:22:28,919 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 16:22:28,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:22:28 BoogieIcfgContainer [2024-06-27 16:22:28,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 16:22:28,921 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 16:22:28,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 16:22:28,927 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 16:22:28,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 04:22:27" (1/3) ... [2024-06-27 16:22:28,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50171b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:22:28, skipping insertion in model container [2024-06-27 16:22:28,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:28" (2/3) ... [2024-06-27 16:22:28,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50171b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:22:28, skipping insertion in model container [2024-06-27 16:22:28,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:22:28" (3/3) ... [2024-06-27 16:22:28,931 INFO L112 eAbstractionObserver]: Analyzing ICFG safe005_tso.i [2024-06-27 16:22:28,937 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-06-27 16:22:28,945 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 16:22:28,945 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-27 16:22:28,945 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 16:22:28,994 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 16:22:29,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 90 flow [2024-06-27 16:22:29,069 INFO L124 PetriNetUnfolderBase]: 1/36 cut-off events. [2024-06-27 16:22:29,069 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:22:29,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-06-27 16:22:29,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 39 transitions, 90 flow [2024-06-27 16:22:29,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 75 flow [2024-06-27 16:22:29,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 16:22:29,100 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;@394f8469, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 16:22:29,100 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-27 16:22:29,121 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 16:22:29,122 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-06-27 16:22:29,122 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:22:29,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:29,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:29,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 16:22:29,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1691510903, now seen corresponding path program 1 times [2024-06-27 16:22:29,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:29,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665241719] [2024-06-27 16:22:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:29,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:29,603 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 16:22:29,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:29,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665241719] [2024-06-27 16:22:29,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665241719] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:29,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:29,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 16:22:29,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441234249] [2024-06-27 16:22:29,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:29,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 16:22:29,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:29,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 16:22:29,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 16:22:29,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 39 [2024-06-27 16:22:29,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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 16:22:29,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:29,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 39 [2024-06-27 16:22:29,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:29,771 INFO L124 PetriNetUnfolderBase]: 291/592 cut-off events. [2024-06-27 16:22:29,772 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-06-27 16:22:29,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1098 conditions, 592 events. 291/592 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3220 event pairs, 58 based on Foata normal form. 27/609 useless extension candidates. Maximal degree in co-relation 1087. Up to 236 conditions per place. [2024-06-27 16:22:29,779 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 25 selfloop transitions, 5 changer transitions 1/48 dead transitions. [2024-06-27 16:22:29,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 173 flow [2024-06-27 16:22:29,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 16:22:29,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 16:22:29,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2024-06-27 16:22:29,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-06-27 16:22:29,794 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 4 states and 117 transitions. [2024-06-27 16:22:29,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 173 flow [2024-06-27 16:22:29,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 48 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 16:22:29,798 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 106 flow [2024-06-27 16:22:29,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2024-06-27 16:22:29,806 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-06-27 16:22:29,806 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 106 flow [2024-06-27 16:22:29,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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 16:22:29,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:29,807 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 16:22:29,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 16:22:29,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 16:22:29,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:29,808 INFO L85 PathProgramCache]: Analyzing trace with hash -81870312, now seen corresponding path program 1 times [2024-06-27 16:22:29,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:29,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179487230] [2024-06-27 16:22:29,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:29,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:29,900 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 16:22:29,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:29,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179487230] [2024-06-27 16:22:29,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179487230] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:29,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:29,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 16:22:29,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622107767] [2024-06-27 16:22:29,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:29,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 16:22:29,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:29,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 16:22:29,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 16:22:29,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 39 [2024-06-27 16:22:29,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 16:22:29,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:29,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 39 [2024-06-27 16:22:29,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:30,047 INFO L124 PetriNetUnfolderBase]: 249/507 cut-off events. [2024-06-27 16:22:30,048 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-06-27 16:22:30,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 507 events. 249/507 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2517 event pairs, 15 based on Foata normal form. 26/525 useless extension candidates. Maximal degree in co-relation 1173. Up to 188 conditions per place. [2024-06-27 16:22:30,056 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 31 selfloop transitions, 8 changer transitions 1/57 dead transitions. [2024-06-27 16:22:30,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 249 flow [2024-06-27 16:22:30,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 16:22:30,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 16:22:30,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 147 transitions. [2024-06-27 16:22:30,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7538461538461538 [2024-06-27 16:22:30,062 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 106 flow. Second operand 5 states and 147 transitions. [2024-06-27 16:22:30,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 249 flow [2024-06-27 16:22:30,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 57 transitions, 239 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-27 16:22:30,066 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 146 flow [2024-06-27 16:22:30,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=146, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2024-06-27 16:22:30,067 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 6 predicate places. [2024-06-27 16:22:30,067 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 146 flow [2024-06-27 16:22:30,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 16:22:30,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:30,068 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] [2024-06-27 16:22:30,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 16:22:30,069 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 16:22:30,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:30,069 INFO L85 PathProgramCache]: Analyzing trace with hash -679659613, now seen corresponding path program 1 times [2024-06-27 16:22:30,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:30,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842412062] [2024-06-27 16:22:30,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:30,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:30,245 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 16:22:30,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:30,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842412062] [2024-06-27 16:22:30,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842412062] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:30,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:30,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 16:22:30,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45764092] [2024-06-27 16:22:30,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:30,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 16:22:30,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:30,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 16:22:30,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 16:22:30,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 39 [2024-06-27 16:22:30,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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 16:22:30,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:30,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 39 [2024-06-27 16:22:30,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:30,368 INFO L124 PetriNetUnfolderBase]: 174/342 cut-off events. [2024-06-27 16:22:30,368 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-06-27 16:22:30,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 342 events. 174/342 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1289 event pairs, 6 based on Foata normal form. 20/354 useless extension candidates. Maximal degree in co-relation 927. Up to 108 conditions per place. [2024-06-27 16:22:30,370 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 29 selfloop transitions, 11 changer transitions 1/58 dead transitions. [2024-06-27 16:22:30,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 276 flow [2024-06-27 16:22:30,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 16:22:30,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 16:22:30,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 169 transitions. [2024-06-27 16:22:30,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-06-27 16:22:30,372 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 146 flow. Second operand 6 states and 169 transitions. [2024-06-27 16:22:30,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 276 flow [2024-06-27 16:22:30,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 58 transitions, 251 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-06-27 16:22:30,376 INFO L231 Difference]: Finished difference. Result has 52 places, 39 transitions, 160 flow [2024-06-27 16:22:30,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=52, PETRI_TRANSITIONS=39} [2024-06-27 16:22:30,377 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2024-06-27 16:22:30,377 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 160 flow [2024-06-27 16:22:30,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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 16:22:30,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:30,377 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] [2024-06-27 16:22:30,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 16:22:30,377 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 16:22:30,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:30,378 INFO L85 PathProgramCache]: Analyzing trace with hash -726187898, now seen corresponding path program 1 times [2024-06-27 16:22:30,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:30,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119959138] [2024-06-27 16:22:30,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:30,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:30,518 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 16:22:30,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:30,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119959138] [2024-06-27 16:22:30,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119959138] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:30,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:30,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:22:30,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603940312] [2024-06-27 16:22:30,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:30,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 16:22:30,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:30,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 16:22:30,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 16:22:30,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 39 [2024-06-27 16:22:30,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 160 flow. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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 16:22:30,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:30,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 39 [2024-06-27 16:22:30,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:30,740 INFO L124 PetriNetUnfolderBase]: 631/1283 cut-off events. [2024-06-27 16:22:30,740 INFO L125 PetriNetUnfolderBase]: For 740/758 co-relation queries the response was YES. [2024-06-27 16:22:30,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3008 conditions, 1283 events. 631/1283 cut-off events. For 740/758 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7696 event pairs, 149 based on Foata normal form. 16/1239 useless extension candidates. Maximal degree in co-relation 2993. Up to 361 conditions per place. [2024-06-27 16:22:30,748 INFO L140 encePairwiseOnDemand]: 30/39 looper letters, 28 selfloop transitions, 7 changer transitions 27/82 dead transitions. [2024-06-27 16:22:30,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 82 transitions, 390 flow [2024-06-27 16:22:30,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 16:22:30,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 16:22:30,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 226 transitions. [2024-06-27 16:22:30,749 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6438746438746439 [2024-06-27 16:22:30,750 INFO L175 Difference]: Start difference. First operand has 52 places, 39 transitions, 160 flow. Second operand 9 states and 226 transitions. [2024-06-27 16:22:30,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 82 transitions, 390 flow [2024-06-27 16:22:30,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 82 transitions, 318 flow, removed 18 selfloop flow, removed 8 redundant places. [2024-06-27 16:22:30,759 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 164 flow [2024-06-27 16:22:30,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=164, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2024-06-27 16:22:30,761 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2024-06-27 16:22:30,761 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 164 flow [2024-06-27 16:22:30,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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 16:22:30,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:30,762 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] [2024-06-27 16:22:30,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 16:22:30,762 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 16:22:30,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:30,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1183288388, now seen corresponding path program 2 times [2024-06-27 16:22:30,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:30,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357059724] [2024-06-27 16:22:30,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:30,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:30,910 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 16:22:30,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:30,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357059724] [2024-06-27 16:22:30,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357059724] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:30,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:30,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:22:30,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067829433] [2024-06-27 16:22:30,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:30,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 16:22:30,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:30,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 16:22:30,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-06-27 16:22:30,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-06-27 16:22:30,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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 16:22:30,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:30,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-06-27 16:22:30,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:31,091 INFO L124 PetriNetUnfolderBase]: 523/1054 cut-off events. [2024-06-27 16:22:31,092 INFO L125 PetriNetUnfolderBase]: For 435/435 co-relation queries the response was YES. [2024-06-27 16:22:31,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2489 conditions, 1054 events. 523/1054 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6133 event pairs, 84 based on Foata normal form. 8/1011 useless extension candidates. Maximal degree in co-relation 2479. Up to 534 conditions per place. [2024-06-27 16:22:31,096 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2024-06-27 16:22:31,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 77 transitions, 386 flow [2024-06-27 16:22:31,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 16:22:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 16:22:31,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 174 transitions. [2024-06-27 16:22:31,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6373626373626373 [2024-06-27 16:22:31,097 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 164 flow. Second operand 7 states and 174 transitions. [2024-06-27 16:22:31,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 77 transitions, 386 flow [2024-06-27 16:22:31,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 77 transitions, 374 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-06-27 16:22:31,100 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2024-06-27 16:22:31,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2024-06-27 16:22:31,102 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2024-06-27 16:22:31,102 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2024-06-27 16:22:31,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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 16:22:31,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-06-27 16:22:31,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-06-27 16:22:31,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-27 16:22:31,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-27 16:22:31,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 16:22:31,109 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-06-27 16:22:31,112 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 16:22:31,112 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 16:22:31,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 04:22:31 BasicIcfg [2024-06-27 16:22:31,119 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 16:22:31,119 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-06-27 16:22:31,120 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-06-27 16:22:31,120 INFO L274 PluginConnector]: Witness Printer initialized [2024-06-27 16:22:31,120 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:22:28" (3/4) ... [2024-06-27 16:22:31,122 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-06-27 16:22:31,124 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-06-27 16:22:31,124 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-06-27 16:22:31,124 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-06-27 16:22:31,127 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-06-27 16:22:31,127 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-06-27 16:22:31,127 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-06-27 16:22:31,128 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-06-27 16:22:31,187 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-06-27 16:22:31,187 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-06-27 16:22:31,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-06-27 16:22:31,188 INFO L158 Benchmark]: Toolchain (without parser) took 3226.64ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 94.6MB in the beginning and 126.2MB in the end (delta: -31.7MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,188 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 121.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 16:22:31,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.57ms. Allocated memory is still 167.8MB. Free memory was 94.4MB in the beginning and 129.1MB in the end (delta: -34.7MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.26ms. Allocated memory is still 167.8MB. Free memory was 129.1MB in the beginning and 127.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,188 INFO L158 Benchmark]: Boogie Preprocessor took 41.58ms. Allocated memory is still 167.8MB. Free memory was 127.0MB in the beginning and 124.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,189 INFO L158 Benchmark]: RCFGBuilder took 391.30ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 106.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,189 INFO L158 Benchmark]: TraceAbstraction took 2198.20ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 105.1MB in the beginning and 130.4MB in the end (delta: -25.4MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,189 INFO L158 Benchmark]: Witness Printer took 67.70ms. Allocated memory is still 220.2MB. Free memory was 130.4MB in the beginning and 126.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,190 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 121.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.57ms. Allocated memory is still 167.8MB. Free memory was 94.4MB in the beginning and 129.1MB in the end (delta: -34.7MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.26ms. Allocated memory is still 167.8MB. Free memory was 129.1MB in the beginning and 127.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.58ms. Allocated memory is still 167.8MB. Free memory was 127.0MB in the beginning and 124.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 391.30ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 106.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2198.20ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 105.1MB in the beginning and 130.4MB in the end (delta: -25.4MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Witness Printer took 67.70ms. Allocated memory is still 220.2MB. Free memory was 130.4MB in the beginning and 126.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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, 64 locations, 4 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: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 233 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 406 IncrementalHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 18 mSDtfsCounter, 406 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=4, InterpolantAutomatonStates: 31, 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, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 16:22:31,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE