./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/chl-chromosome-opt-symm.wvr.yml/witness.yml --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/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c ./goblint.2024-06-19_11-23-25.files/protection/chl-chromosome-opt-symm.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 19:42:02,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:42:02,165 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:42:02,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:42:02,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:42:02,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:42:02,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:42:02,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:42:02,199 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:42:02,202 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:42:02,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:42:02,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:42:02,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:42:02,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:42:02,204 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:42:02,204 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:42:02,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:42:02,205 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:42:02,205 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:42:02,205 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:42:02,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:42:02,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:42:02,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:42:02,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:42:02,206 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:42:02,206 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:42:02,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:42:02,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:42:02,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:42:02,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:42:02,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:42:02,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:42:02,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:42:02,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:42:02,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:42:02,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:42:02,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:42:02,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:42:02,210 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:42:02,210 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:42:02,210 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:42:02,210 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:42:02,210 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:42:02,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:42:02,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:42:02,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:42:02,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:42:02,451 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:42:02,466 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:42:02,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/chl-chromosome-opt-symm.wvr.yml/witness.yml [2024-06-27 19:42:02,551 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:42:02,551 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:42:02,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2024-06-27 19:42:03,601 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:42:03,759 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:42:03,759 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2024-06-27 19:42:03,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1113e03/5e911314287e4f449055b5afa2894a13/FLAG23cde7646 [2024-06-27 19:42:04,189 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1113e03/5e911314287e4f449055b5afa2894a13 [2024-06-27 19:42:04,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:42:04,200 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:42:04,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:42:04,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:42:04,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:42:04,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:42:02" (1/2) ... [2024-06-27 19:42:04,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63853760 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:04, skipping insertion in model container [2024-06-27 19:42:04,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:42:02" (1/2) ... [2024-06-27 19:42:04,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2cf67aa9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:04, skipping insertion in model container [2024-06-27 19:42:04,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:42:04" (2/2) ... [2024-06-27 19:42:04,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63853760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04, skipping insertion in model container [2024-06-27 19:42:04,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:42:04" (2/2) ... [2024-06-27 19:42:04,207 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:42:04,219 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:42:04,220 INFO L97 edCorrectnessWitness]: Location invariant before [L89-L89] (! multithreaded || ((res1 == -1 || res1 == 0) || res1 == 1)) && (! multithreaded || ((res2 == -1 || res2 == 0) || res2 == 1)) [2024-06-27 19:42:04,220 INFO L97 edCorrectnessWitness]: Location invariant before [L88-L88] (! multithreaded || ((res1 == -1 || res1 == 0) || res1 == 1)) && (! multithreaded || ((res2 == -1 || res2 == 0) || res2 == 1)) [2024-06-27 19:42:04,220 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:42:04,220 INFO L106 edCorrectnessWitness]: ghost_update [L87-L87] multithreaded = 1; [2024-06-27 19:42:04,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:42:04,383 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:42:04,389 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 19:42:04,428 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:42:04,439 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:42:04,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04 WrapperNode [2024-06-27 19:42:04,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:42:04,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:42:04,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:42:04,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:42:04,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,451 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,469 INFO L138 Inliner]: procedures = 23, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 176 [2024-06-27 19:42:04,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:42:04,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:42:04,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:42:04,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:42:04,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,490 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-06-27 19:42:04,490 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,501 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:42:04,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:42:04,504 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:42:04,504 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:42:04,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (1/1) ... [2024-06-27 19:42:04,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:42:04,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:42:04,526 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 19:42:04,530 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 19:42:04,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:42:04,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-27 19:42:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-27 19:42:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-27 19:42:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-27 19:42:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:42:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 19:42:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-27 19:42:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-27 19:42:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-27 19:42:04,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:42:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:42:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-27 19:42:04,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-27 19:42:04,556 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 19:42:04,659 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:42:04,661 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:42:04,872 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:42:04,872 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:42:05,058 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:42:05,058 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-27 19:42:05,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:42:05 BoogieIcfgContainer [2024-06-27 19:42:05,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:42:05,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:42:05,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:42:05,063 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:42:05,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:42:02" (1/4) ... [2024-06-27 19:42:05,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8985f3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:42:05, skipping insertion in model container [2024-06-27 19:42:05,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:42:04" (2/4) ... [2024-06-27 19:42:05,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8985f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:42:05, skipping insertion in model container [2024-06-27 19:42:05,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:04" (3/4) ... [2024-06-27 19:42:05,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8985f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:42:05, skipping insertion in model container [2024-06-27 19:42:05,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:42:05" (4/4) ... [2024-06-27 19:42:05,068 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2024-06-27 19:42:05,081 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:42:05,082 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 19:42:05,082 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:42:05,130 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-27 19:42:05,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 31 transitions, 76 flow [2024-06-27 19:42:05,178 INFO L124 PetriNetUnfolderBase]: 6/29 cut-off events. [2024-06-27 19:42:05,179 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 19:42:05,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 29 events. 6/29 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-06-27 19:42:05,181 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 31 transitions, 76 flow [2024-06-27 19:42:05,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 27 transitions, 63 flow [2024-06-27 19:42:05,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:42:05,193 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=false, 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;@628c95c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:42:05,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-27 19:42:05,197 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:42:05,197 INFO L124 PetriNetUnfolderBase]: 4/13 cut-off events. [2024-06-27 19:42:05,197 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:42:05,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:05,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:05,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:05,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:05,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1678455276, now seen corresponding path program 1 times [2024-06-27 19:42:05,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:05,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98105657] [2024-06-27 19:42:05,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:05,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:05,467 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 19:42:05,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:05,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98105657] [2024-06-27 19:42:05,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98105657] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:05,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:05,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:42:05,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494008689] [2024-06-27 19:42:05,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:05,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:42:05,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:05,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:42:05,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:42:05,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2024-06-27 19:42:05,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19:42:05,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:05,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2024-06-27 19:42:05,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:05,631 INFO L124 PetriNetUnfolderBase]: 206/346 cut-off events. [2024-06-27 19:42:05,636 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-06-27 19:42:05,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 716 conditions, 346 events. 206/346 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1175 event pairs, 81 based on Foata normal form. 25/292 useless extension candidates. Maximal degree in co-relation 643. Up to 171 conditions per place. [2024-06-27 19:42:05,641 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 37 selfloop transitions, 3 changer transitions 2/44 dead transitions. [2024-06-27 19:42:05,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 44 transitions, 187 flow [2024-06-27 19:42:05,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:05,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:05,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-06-27 19:42:05,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2024-06-27 19:42:05,652 INFO L175 Difference]: Start difference. First operand has 28 places, 27 transitions, 63 flow. Second operand 3 states and 56 transitions. [2024-06-27 19:42:05,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 44 transitions, 187 flow [2024-06-27 19:42:05,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 44 transitions, 179 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 19:42:05,656 INFO L231 Difference]: Finished difference. Result has 28 places, 28 transitions, 76 flow [2024-06-27 19:42:05,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=28, PETRI_TRANSITIONS=28} [2024-06-27 19:42:05,660 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 0 predicate places. [2024-06-27 19:42:05,660 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 28 transitions, 76 flow [2024-06-27 19:42:05,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19:42:05,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:05,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:05,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:42:05,661 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:05,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:05,663 INFO L85 PathProgramCache]: Analyzing trace with hash -849361794, now seen corresponding path program 1 times [2024-06-27 19:42:05,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:05,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793291208] [2024-06-27 19:42:05,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:05,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:05,757 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 19:42:05,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:05,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793291208] [2024-06-27 19:42:05,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793291208] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:05,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:05,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:42:05,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004595679] [2024-06-27 19:42:05,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:05,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:42:05,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:05,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:42:05,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:42:05,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31 [2024-06-27 19:42:05,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 28 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 19:42:05,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:05,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31 [2024-06-27 19:42:05,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:05,848 INFO L124 PetriNetUnfolderBase]: 166/292 cut-off events. [2024-06-27 19:42:05,848 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-06-27 19:42:05,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 292 events. 166/292 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 944 event pairs, 114 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 341. Up to 275 conditions per place. [2024-06-27 19:42:05,852 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 22 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2024-06-27 19:42:05,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 30 transitions, 132 flow [2024-06-27 19:42:05,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:05,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:05,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-06-27 19:42:05,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4731182795698925 [2024-06-27 19:42:05,856 INFO L175 Difference]: Start difference. First operand has 28 places, 28 transitions, 76 flow. Second operand 3 states and 44 transitions. [2024-06-27 19:42:05,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 30 transitions, 132 flow [2024-06-27 19:42:05,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 30 transitions, 129 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:42:05,858 INFO L231 Difference]: Finished difference. Result has 29 places, 30 transitions, 95 flow [2024-06-27 19:42:05,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=29, PETRI_TRANSITIONS=30} [2024-06-27 19:42:05,860 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2024-06-27 19:42:05,860 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 30 transitions, 95 flow [2024-06-27 19:42:05,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 19:42:05,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:05,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:05,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:42:05,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:05,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:05,867 INFO L85 PathProgramCache]: Analyzing trace with hash 590748384, now seen corresponding path program 1 times [2024-06-27 19:42:05,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:05,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899533055] [2024-06-27 19:42:05,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:05,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-27 19:42:05,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:05,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899533055] [2024-06-27 19:42:05,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899533055] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 19:42:05,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340624534] [2024-06-27 19:42:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:05,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:42:05,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:42:05,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 19:42:06,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-27 19:42:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:06,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2024-06-27 19:42:06,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 19:42:06,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-27 19:42:06,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 19:42:06,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-27 19:42:06,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340624534] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-27 19:42:06,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-27 19:42:06,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-06-27 19:42:06,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935059676] [2024-06-27 19:42:06,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-27 19:42:06,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 19:42:06,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:06,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 19:42:06,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-06-27 19:42:06,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31 [2024-06-27 19:42:06,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 30 transitions, 95 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 19:42:06,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:06,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31 [2024-06-27 19:42:06,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:06,212 INFO L124 PetriNetUnfolderBase]: 166/298 cut-off events. [2024-06-27 19:42:06,213 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-06-27 19:42:06,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 298 events. 166/298 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 944 event pairs, 114 based on Foata normal form. 3/266 useless extension candidates. Maximal degree in co-relation 627. Up to 275 conditions per place. [2024-06-27 19:42:06,216 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 22 selfloop transitions, 10 changer transitions 0/36 dead transitions. [2024-06-27 19:42:06,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 183 flow [2024-06-27 19:42:06,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 19:42:06,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 19:42:06,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2024-06-27 19:42:06,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3870967741935484 [2024-06-27 19:42:06,219 INFO L175 Difference]: Start difference. First operand has 29 places, 30 transitions, 95 flow. Second operand 6 states and 72 transitions. [2024-06-27 19:42:06,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 183 flow [2024-06-27 19:42:06,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 179 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:42:06,221 INFO L231 Difference]: Finished difference. Result has 36 places, 36 transitions, 157 flow [2024-06-27 19:42:06,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=157, PETRI_PLACES=36, PETRI_TRANSITIONS=36} [2024-06-27 19:42:06,222 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 8 predicate places. [2024-06-27 19:42:06,222 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 36 transitions, 157 flow [2024-06-27 19:42:06,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 19:42:06,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:06,223 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:06,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-06-27 19:42:06,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:42:06,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:06,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:06,434 INFO L85 PathProgramCache]: Analyzing trace with hash 689913342, now seen corresponding path program 2 times [2024-06-27 19:42:06,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:06,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919838419] [2024-06-27 19:42:06,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:06,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:06,593 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-06-27 19:42:06,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:06,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919838419] [2024-06-27 19:42:06,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919838419] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 19:42:06,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20134260] [2024-06-27 19:42:06,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-27 19:42:06,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:42:06,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:42:06,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 19:42:06,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-27 19:42:06,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-06-27 19:42:06,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-27 19:42:06,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2024-06-27 19:42:06,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 19:42:06,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:42:06,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 33 [2024-06-27 19:42:06,840 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-06-27 19:42:06,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-27 19:42:06,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20134260] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:06,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-27 19:42:06,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-06-27 19:42:06,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522604022] [2024-06-27 19:42:06,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:06,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:42:06,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:06,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:42:06,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-06-27 19:42:06,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2024-06-27 19:42:06,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 36 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:42:06,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:06,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2024-06-27 19:42:06,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:06,971 INFO L124 PetriNetUnfolderBase]: 244/420 cut-off events. [2024-06-27 19:42:06,971 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-06-27 19:42:06,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 420 events. 244/420 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1567 event pairs, 57 based on Foata normal form. 12/379 useless extension candidates. Maximal degree in co-relation 885. Up to 137 conditions per place. [2024-06-27 19:42:06,974 INFO L140 encePairwiseOnDemand]: 25/31 looper letters, 51 selfloop transitions, 6 changer transitions 6/65 dead transitions. [2024-06-27 19:42:06,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 65 transitions, 345 flow [2024-06-27 19:42:06,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 19:42:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 19:42:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2024-06-27 19:42:06,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4967741935483871 [2024-06-27 19:42:06,976 INFO L175 Difference]: Start difference. First operand has 36 places, 36 transitions, 157 flow. Second operand 5 states and 77 transitions. [2024-06-27 19:42:06,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 65 transitions, 345 flow [2024-06-27 19:42:06,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 65 transitions, 329 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-06-27 19:42:06,980 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 162 flow [2024-06-27 19:42:06,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2024-06-27 19:42:06,981 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2024-06-27 19:42:06,982 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 162 flow [2024-06-27 19:42:06,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:42:06,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:06,982 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:06,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-06-27 19:42:07,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-06-27 19:42:07,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:07,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:07,189 INFO L85 PathProgramCache]: Analyzing trace with hash -604509396, now seen corresponding path program 1 times [2024-06-27 19:42:07,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:07,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640578824] [2024-06-27 19:42:07,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:07,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-06-27 19:42:07,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:07,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640578824] [2024-06-27 19:42:07,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640578824] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 19:42:07,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74363664] [2024-06-27 19:42:07,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:07,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:42:07,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:42:07,283 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 19:42:07,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-06-27 19:42:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:07,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2024-06-27 19:42:07,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 19:42:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-06-27 19:42:07,433 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 19:42:07,466 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-06-27 19:42:07,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74363664] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-27 19:42:07,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-27 19:42:07,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-06-27 19:42:07,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469991724] [2024-06-27 19:42:07,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-27 19:42:07,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-27 19:42:07,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:07,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-27 19:42:07,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2024-06-27 19:42:07,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31 [2024-06-27 19:42:07,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 162 flow. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 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 19:42:07,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:07,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31 [2024-06-27 19:42:07,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:07,556 INFO L124 PetriNetUnfolderBase]: 168/309 cut-off events. [2024-06-27 19:42:07,556 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-06-27 19:42:07,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 309 events. 168/309 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1006 event pairs, 114 based on Foata normal form. 1/308 useless extension candidates. Maximal degree in co-relation 716. Up to 284 conditions per place. [2024-06-27 19:42:07,558 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 23 selfloop transitions, 12 changer transitions 0/38 dead transitions. [2024-06-27 19:42:07,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 38 transitions, 244 flow [2024-06-27 19:42:07,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 19:42:07,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 19:42:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 75 transitions. [2024-06-27 19:42:07,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3456221198156682 [2024-06-27 19:42:07,560 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 162 flow. Second operand 7 states and 75 transitions. [2024-06-27 19:42:07,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 38 transitions, 244 flow [2024-06-27 19:42:07,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 234 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-27 19:42:07,562 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 198 flow [2024-06-27 19:42:07,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=198, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2024-06-27 19:42:07,563 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 17 predicate places. [2024-06-27 19:42:07,563 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 198 flow [2024-06-27 19:42:07,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 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 19:42:07,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:07,563 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:07,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-06-27 19:42:07,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:42:07,774 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:07,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:07,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1976705674, now seen corresponding path program 2 times [2024-06-27 19:42:07,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:07,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130959672] [2024-06-27 19:42:07,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:07,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-06-27 19:42:07,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:07,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130959672] [2024-06-27 19:42:07,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130959672] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:07,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:07,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:42:07,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5453236] [2024-06-27 19:42:07,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:07,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:42:07,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:07,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:42:07,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:42:07,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2024-06-27 19:42:07,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 198 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 19:42:07,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:07,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2024-06-27 19:42:07,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:08,042 INFO L124 PetriNetUnfolderBase]: 201/361 cut-off events. [2024-06-27 19:42:08,042 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2024-06-27 19:42:08,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 361 events. 201/361 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1216 event pairs, 60 based on Foata normal form. 10/371 useless extension candidates. Maximal degree in co-relation 815. Up to 128 conditions per place. [2024-06-27 19:42:08,044 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 47 selfloop transitions, 7 changer transitions 6/62 dead transitions. [2024-06-27 19:42:08,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 379 flow [2024-06-27 19:42:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 19:42:08,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 19:42:08,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 68 transitions. [2024-06-27 19:42:08,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43870967741935485 [2024-06-27 19:42:08,046 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 198 flow. Second operand 5 states and 68 transitions. [2024-06-27 19:42:08,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 379 flow [2024-06-27 19:42:08,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 62 transitions, 355 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-06-27 19:42:08,050 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 204 flow [2024-06-27 19:42:08,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=204, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2024-06-27 19:42:08,052 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 19 predicate places. [2024-06-27 19:42:08,052 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 204 flow [2024-06-27 19:42:08,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 19:42:08,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:08,053 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:08,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 19:42:08,053 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:42:08,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:08,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1493797950, now seen corresponding path program 1 times [2024-06-27 19:42:08,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:08,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043889950] [2024-06-27 19:42:08,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:08,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-06-27 19:42:08,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:08,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043889950] [2024-06-27 19:42:08,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043889950] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:08,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:08,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 19:42:08,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796919236] [2024-06-27 19:42:08,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:08,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 19:42:08,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:08,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 19:42:08,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 19:42:08,356 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2024-06-27 19:42:08,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 19:42:08,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:08,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2024-06-27 19:42:08,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:08,527 INFO L124 PetriNetUnfolderBase]: 129/235 cut-off events. [2024-06-27 19:42:08,527 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-06-27 19:42:08,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 681 conditions, 235 events. 129/235 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 669 event pairs, 8 based on Foata normal form. 4/239 useless extension candidates. Maximal degree in co-relation 611. Up to 63 conditions per place. [2024-06-27 19:42:08,528 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2024-06-27 19:42:08,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 62 transitions, 382 flow [2024-06-27 19:42:08,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 19:42:08,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 19:42:08,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 81 transitions. [2024-06-27 19:42:08,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32661290322580644 [2024-06-27 19:42:08,529 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 204 flow. Second operand 8 states and 81 transitions. [2024-06-27 19:42:08,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 62 transitions, 382 flow [2024-06-27 19:42:08,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 62 transitions, 365 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-06-27 19:42:08,530 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-06-27 19:42:08,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2024-06-27 19:42:08,531 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 21 predicate places. [2024-06-27 19:42:08,531 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-06-27 19:42:08,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 19:42:08,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-27 19:42:08,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-27 19:42:08,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-27 19:42:08,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-27 19:42:08,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 19:42:08,534 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-06-27 19:42:08,537 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 19:42:08,537 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 19:42:08,539 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-27 19:42:08,539 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-27 19:42:08,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 07:42:08 BasicIcfg [2024-06-27 19:42:08,540 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 19:42:08,541 INFO L158 Benchmark]: Toolchain (without parser) took 4341.03ms. Allocated memory was 125.8MB in the beginning and 239.1MB in the end (delta: 113.2MB). Free memory was 70.1MB in the beginning and 197.9MB in the end (delta: -127.9MB). Peak memory consumption was 114.1MB. Max. memory is 16.1GB. [2024-06-27 19:42:08,541 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:42:08,541 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory is still 101.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:42:08,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.64ms. Allocated memory is still 125.8MB. Free memory was 69.8MB in the beginning and 54.7MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-27 19:42:08,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.36ms. Allocated memory is still 125.8MB. Free memory was 54.7MB in the beginning and 52.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:42:08,542 INFO L158 Benchmark]: Boogie Preprocessor took 34.16ms. Allocated memory is still 125.8MB. Free memory was 52.7MB in the beginning and 50.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:42:08,542 INFO L158 Benchmark]: RCFGBuilder took 554.68ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 50.0MB in the beginning and 110.0MB in the end (delta: -60.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-06-27 19:42:08,542 INFO L158 Benchmark]: TraceAbstraction took 3479.38ms. Allocated memory was 182.5MB in the beginning and 239.1MB in the end (delta: 56.6MB). Free memory was 109.3MB in the beginning and 197.9MB in the end (delta: -88.6MB). Peak memory consumption was 97.4MB. Max. memory is 16.1GB. [2024-06-27 19:42:08,543 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory is still 101.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.64ms. Allocated memory is still 125.8MB. Free memory was 69.8MB in the beginning and 54.7MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.36ms. Allocated memory is still 125.8MB. Free memory was 54.7MB in the beginning and 52.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.16ms. Allocated memory is still 125.8MB. Free memory was 52.7MB in the beginning and 50.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 554.68ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 50.0MB in the beginning and 110.0MB in the end (delta: -60.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3479.38ms. Allocated memory was 182.5MB in the beginning and 239.1MB in the end (delta: 56.6MB). Free memory was 109.3MB in the beginning and 197.9MB in the end (delta: -88.6MB). Peak memory consumption was 97.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 88]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 89]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 38 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: 3.4s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 616 IncrementalHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 3 mSDtfsCounter, 616 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 69 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=6, InterpolantAutomatonStates: 37, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 168 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 589 SizeOfPredicates, 9 NumberOfNonLiveVariables, 481 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 123/166 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 19:42:08,564 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