./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i --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/race-4_1-thread_local_vars.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/ldv-races/race-4_1-thread_local_vars.i ./goblint.2024-06-19_11-23-25.files/protection/race-4_1-thread_local_vars.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 19:39:14,877 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:39:14,948 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:39:14,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:39:14,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:39:14,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:39:14,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:39:14,993 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:39:14,993 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:39:14,997 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:39:14,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:39:14,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:39:14,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:39:15,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:39:15,000 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:39:15,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:39:15,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:39:15,001 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:39:15,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:39:15,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:39:15,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:39:15,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:39:15,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:39:15,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:39:15,003 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:39:15,004 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:39:15,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:39:15,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:39:15,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:39:15,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:39:15,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:39:15,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:39:15,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:39:15,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:39:15,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:39:15,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:39:15,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:39:15,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:39:15,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:39:15,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:39:15,008 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:39:15,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:39:15,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:39:15,009 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:39:15,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:39:15,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:39:15,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:39:15,324 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:39:15,324 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:39:15,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/race-4_1-thread_local_vars.yml/witness.yml [2024-06-27 19:39:15,431 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:39:15,432 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:39:15,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-06-27 19:39:16,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:39:16,831 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:39:16,832 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-06-27 19:39:16,861 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9912870da/b02ecbd5af244e9c9173d4da012d16b5/FLAGdb72cc95e [2024-06-27 19:39:16,871 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9912870da/b02ecbd5af244e9c9173d4da012d16b5 [2024-06-27 19:39:16,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:39:16,874 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:39:16,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:39:16,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:39:16,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:39:16,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:39:15" (1/2) ... [2024-06-27 19:39:16,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@551fc432 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:39:16, skipping insertion in model container [2024-06-27 19:39:16,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:39:15" (1/2) ... [2024-06-27 19:39:16,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@109d1aa8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:39:16, skipping insertion in model container [2024-06-27 19:39:16,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:39:16" (2/2) ... [2024-06-27 19:39:16,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@551fc432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:16, skipping insertion in model container [2024-06-27 19:39:16,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:39:16" (2/2) ... [2024-06-27 19:39:16,883 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:39:16,945 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:39:16,946 INFO L97 edCorrectnessWitness]: Location invariant before [L1719-L1719] (! multithreaded || (ldv_usb_state == 0 || ldv_usb_state == 1)) && (! multithreaded || ((((pdev == 1 || pdev == 5) || pdev == 6) || pdev == 8) || pdev == 9)) [2024-06-27 19:39:16,947 INFO L97 edCorrectnessWitness]: Location invariant before [L1781-L1781] (! multithreaded || (ldv_usb_state == 0 || ldv_usb_state == 1)) && (! multithreaded || ((((pdev == 1 || pdev == 5) || pdev == 6) || pdev == 8) || pdev == 9)) [2024-06-27 19:39:16,947 INFO L103 edCorrectnessWitness]: ghost_variable mutex_locked = 0 [2024-06-27 19:39:16,947 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:39:16,948 INFO L106 edCorrectnessWitness]: ghost_update [L1698-L1698] mutex_locked = 1; [2024-06-27 19:39:16,948 INFO L106 edCorrectnessWitness]: ghost_update [L1701-L1701] mutex_locked = 0; [2024-06-27 19:39:16,948 INFO L106 edCorrectnessWitness]: ghost_update [L1780-L1780] multithreaded = 1; [2024-06-27 19:39:17,012 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:39:17,619 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:39:17,633 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 19:39:17,766 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:39:17,857 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:39:17,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17 WrapperNode [2024-06-27 19:39:17,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:39:17,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:39:17,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:39:17,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:39:17,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:17,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:17,923 INFO L138 Inliner]: procedures = 487, calls = 37, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 223 [2024-06-27 19:39:17,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:39:17,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:39:17,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:39:17,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:39:17,934 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:17,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:17,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:17,957 INFO L175 MemorySlicer]: Split 9 memory accesses to 4 slices as follows [2, 1, 5, 1]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5, 0]. The 2 writes are split as follows [0, 1, 0, 1]. [2024-06-27 19:39:17,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:17,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:17,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:18,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:18,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:18,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:18,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:39:18,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:39:18,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:39:18,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:39:18,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (1/1) ... [2024-06-27 19:39:18,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:39:18,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:39:18,085 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 19:39:18,093 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 19:39:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-06-27 19:39:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-06-27 19:39:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-06-27 19:39:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-06-27 19:39:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-06-27 19:39:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 19:39:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:39:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-06-27 19:39:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-06-27 19:39:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-06-27 19:39:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-06-27 19:39:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:39:18,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:39:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-06-27 19:39:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 19:39:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:39:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 19:39:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 19:39:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-27 19:39:18,126 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 19:39:18,420 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:39:18,421 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:39:18,735 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:39:18,735 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:39:18,908 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:39:18,909 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-06-27 19:39:18,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:39:18 BoogieIcfgContainer [2024-06-27 19:39:18,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:39:18,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:39:18,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:39:18,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:39:18,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:39:15" (1/4) ... [2024-06-27 19:39:18,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5339ff64 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:39:18, skipping insertion in model container [2024-06-27 19:39:18,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:39:16" (2/4) ... [2024-06-27 19:39:18,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5339ff64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:39:18, skipping insertion in model container [2024-06-27 19:39:18,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:39:17" (3/4) ... [2024-06-27 19:39:18,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5339ff64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:39:18, skipping insertion in model container [2024-06-27 19:39:18,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:39:18" (4/4) ... [2024-06-27 19:39:18,922 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-06-27 19:39:18,938 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:39:18,938 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 19:39:18,938 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:39:18,989 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-06-27 19:39:19,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 87 transitions, 201 flow [2024-06-27 19:39:19,070 INFO L124 PetriNetUnfolderBase]: 20/85 cut-off events. [2024-06-27 19:39:19,071 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-27 19:39:19,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 85 events. 20/85 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 199 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 75. Up to 11 conditions per place. [2024-06-27 19:39:19,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 87 transitions, 201 flow [2024-06-27 19:39:19,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 56 transitions, 128 flow [2024-06-27 19:39:19,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:39:19,090 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;@50825f5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:39:19,092 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-27 19:39:19,097 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:39:19,097 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 19:39:19,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:39:19,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:39:19,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-27 19:39:19,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:39:19,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:39:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2015763253, now seen corresponding path program 1 times [2024-06-27 19:39:19,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:39:19,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005235403] [2024-06-27 19:39:19,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:39:19,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:39:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:39:19,492 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 19:39:19,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:39:19,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005235403] [2024-06-27 19:39:19,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005235403] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:39:19,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:39:19,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:39:19,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526840646] [2024-06-27 19:39:19,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:39:19,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:39:19,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:39:19,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:39:19,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:39:19,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 87 [2024-06-27 19:39:19,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 56 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 19:39:19,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:39:19,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 87 [2024-06-27 19:39:19,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:39:20,169 INFO L124 PetriNetUnfolderBase]: 3216/5145 cut-off events. [2024-06-27 19:39:20,169 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-06-27 19:39:20,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9720 conditions, 5145 events. 3216/5145 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 29769 event pairs, 821 based on Foata normal form. 11/4275 useless extension candidates. Maximal degree in co-relation 9564. Up to 3891 conditions per place. [2024-06-27 19:39:20,204 INFO L140 encePairwiseOnDemand]: 76/87 looper letters, 62 selfloop transitions, 4 changer transitions 2/80 dead transitions. [2024-06-27 19:39:20,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 80 transitions, 315 flow [2024-06-27 19:39:20,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:39:20,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:39:20,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-06-27 19:39:20,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5363984674329502 [2024-06-27 19:39:20,218 INFO L175 Difference]: Start difference. First operand has 49 places, 56 transitions, 128 flow. Second operand 3 states and 140 transitions. [2024-06-27 19:39:20,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 80 transitions, 315 flow [2024-06-27 19:39:20,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 80 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:39:20,228 INFO L231 Difference]: Finished difference. Result has 50 places, 55 transitions, 149 flow [2024-06-27 19:39:20,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=50, PETRI_TRANSITIONS=55} [2024-06-27 19:39:20,233 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2024-06-27 19:39:20,234 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 55 transitions, 149 flow [2024-06-27 19:39:20,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 19:39:20,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:39:20,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:39:20,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:39:20,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:39:20,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:39:20,237 INFO L85 PathProgramCache]: Analyzing trace with hash -390428916, now seen corresponding path program 1 times [2024-06-27 19:39:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:39:20,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372088590] [2024-06-27 19:39:20,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:39:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:39:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:39:20,481 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 19:39:20,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:39:20,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372088590] [2024-06-27 19:39:20,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372088590] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:39:20,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:39:20,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:39:20,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607018532] [2024-06-27 19:39:20,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:39:20,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:39:20,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:39:20,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:39:20,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:39:20,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 87 [2024-06-27 19:39:20,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 55 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:39:20,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:39:20,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 87 [2024-06-27 19:39:20,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:39:21,107 INFO L124 PetriNetUnfolderBase]: 3873/6259 cut-off events. [2024-06-27 19:39:21,107 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2024-06-27 19:39:21,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12995 conditions, 6259 events. 3873/6259 cut-off events. For 661/661 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 34272 event pairs, 740 based on Foata normal form. 217/5731 useless extension candidates. Maximal degree in co-relation 2562. Up to 3852 conditions per place. [2024-06-27 19:39:21,138 INFO L140 encePairwiseOnDemand]: 78/87 looper letters, 83 selfloop transitions, 6 changer transitions 0/101 dead transitions. [2024-06-27 19:39:21,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 101 transitions, 432 flow [2024-06-27 19:39:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:39:21,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:39:21,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 177 transitions. [2024-06-27 19:39:21,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5086206896551724 [2024-06-27 19:39:21,145 INFO L175 Difference]: Start difference. First operand has 50 places, 55 transitions, 149 flow. Second operand 4 states and 177 transitions. [2024-06-27 19:39:21,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 101 transitions, 432 flow [2024-06-27 19:39:21,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 101 transitions, 428 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:39:21,152 INFO L231 Difference]: Finished difference. Result has 52 places, 57 transitions, 178 flow [2024-06-27 19:39:21,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=52, PETRI_TRANSITIONS=57} [2024-06-27 19:39:21,154 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 3 predicate places. [2024-06-27 19:39:21,159 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 57 transitions, 178 flow [2024-06-27 19:39:21,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:39:21,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:39:21,160 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:39:21,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:39:21,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:39:21,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:39:21,161 INFO L85 PathProgramCache]: Analyzing trace with hash -359831234, now seen corresponding path program 1 times [2024-06-27 19:39:21,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:39:21,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633609197] [2024-06-27 19:39:21,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:39:21,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:39:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:39:21,245 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 19:39:21,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:39:21,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633609197] [2024-06-27 19:39:21,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633609197] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:39:21,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:39:21,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:39:21,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158639369] [2024-06-27 19:39:21,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:39:21,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:39:21,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:39:21,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:39:21,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:39:21,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 87 [2024-06-27 19:39:21,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 57 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 19:39:21,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:39:21,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 87 [2024-06-27 19:39:21,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:39:21,811 INFO L124 PetriNetUnfolderBase]: 4073/6556 cut-off events. [2024-06-27 19:39:21,811 INFO L125 PetriNetUnfolderBase]: For 2019/2019 co-relation queries the response was YES. [2024-06-27 19:39:21,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14472 conditions, 6556 events. 4073/6556 cut-off events. For 2019/2019 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 36239 event pairs, 1766 based on Foata normal form. 35/5782 useless extension candidates. Maximal degree in co-relation 3290. Up to 2756 conditions per place. [2024-06-27 19:39:21,844 INFO L140 encePairwiseOnDemand]: 76/87 looper letters, 68 selfloop transitions, 10 changer transitions 5/94 dead transitions. [2024-06-27 19:39:21,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 94 transitions, 434 flow [2024-06-27 19:39:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:39:21,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:39:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2024-06-27 19:39:21,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4540229885057471 [2024-06-27 19:39:21,847 INFO L175 Difference]: Start difference. First operand has 52 places, 57 transitions, 178 flow. Second operand 4 states and 158 transitions. [2024-06-27 19:39:21,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 94 transitions, 434 flow [2024-06-27 19:39:21,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 94 transitions, 425 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:39:21,852 INFO L231 Difference]: Finished difference. Result has 56 places, 60 transitions, 237 flow [2024-06-27 19:39:21,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=56, PETRI_TRANSITIONS=60} [2024-06-27 19:39:21,854 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 7 predicate places. [2024-06-27 19:39:21,854 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 60 transitions, 237 flow [2024-06-27 19:39:21,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 19:39:21,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:39:21,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:39:21,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 19:39:21,855 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:39:21,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:39:21,856 INFO L85 PathProgramCache]: Analyzing trace with hash -407742758, now seen corresponding path program 1 times [2024-06-27 19:39:21,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:39:21,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659085486] [2024-06-27 19:39:21,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:39:21,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:39:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:39:21,996 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 19:39:21,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:39:21,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659085486] [2024-06-27 19:39:21,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659085486] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:39:21,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:39:21,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:39:21,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962095151] [2024-06-27 19:39:21,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:39:21,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:39:21,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:39:21,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:39:21,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:39:22,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 87 [2024-06-27 19:39:22,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 60 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 19:39:22,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:39:22,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 87 [2024-06-27 19:39:22,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:39:22,767 INFO L124 PetriNetUnfolderBase]: 5021/8094 cut-off events. [2024-06-27 19:39:22,767 INFO L125 PetriNetUnfolderBase]: For 7117/7117 co-relation queries the response was YES. [2024-06-27 19:39:22,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19646 conditions, 8094 events. 5021/8094 cut-off events. For 7117/7117 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 44778 event pairs, 1600 based on Foata normal form. 153/7182 useless extension candidates. Maximal degree in co-relation 13733. Up to 2834 conditions per place. [2024-06-27 19:39:22,804 INFO L140 encePairwiseOnDemand]: 78/87 looper letters, 78 selfloop transitions, 12 changer transitions 1/102 dead transitions. [2024-06-27 19:39:22,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 102 transitions, 533 flow [2024-06-27 19:39:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:39:22,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:39:22,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 163 transitions. [2024-06-27 19:39:22,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46839080459770116 [2024-06-27 19:39:22,806 INFO L175 Difference]: Start difference. First operand has 56 places, 60 transitions, 237 flow. Second operand 4 states and 163 transitions. [2024-06-27 19:39:22,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 102 transitions, 533 flow [2024-06-27 19:39:22,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 102 transitions, 517 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-06-27 19:39:22,817 INFO L231 Difference]: Finished difference. Result has 60 places, 62 transitions, 286 flow [2024-06-27 19:39:22,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=286, PETRI_PLACES=60, PETRI_TRANSITIONS=62} [2024-06-27 19:39:22,818 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2024-06-27 19:39:22,818 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 62 transitions, 286 flow [2024-06-27 19:39:22,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 19:39:22,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:39:22,818 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] [2024-06-27 19:39:22,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 19:39:22,819 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:39:22,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:39:22,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1379482757, now seen corresponding path program 1 times [2024-06-27 19:39:22,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:39:22,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726893130] [2024-06-27 19:39:22,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:39:22,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:39:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:39:22,885 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 19:39:22,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:39:22,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726893130] [2024-06-27 19:39:22,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726893130] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:39:22,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:39:22,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:39:22,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218167591] [2024-06-27 19:39:22,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:39:22,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:39:22,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:39:22,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:39:22,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:39:22,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 87 [2024-06-27 19:39:22,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 62 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 19:39:22,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:39:22,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 87 [2024-06-27 19:39:22,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:39:23,643 INFO L124 PetriNetUnfolderBase]: 4633/7773 cut-off events. [2024-06-27 19:39:23,644 INFO L125 PetriNetUnfolderBase]: For 11156/11156 co-relation queries the response was YES. [2024-06-27 19:39:23,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18739 conditions, 7773 events. 4633/7773 cut-off events. For 11156/11156 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 45363 event pairs, 1559 based on Foata normal form. 535/7390 useless extension candidates. Maximal degree in co-relation 14244. Up to 2877 conditions per place. [2024-06-27 19:39:23,686 INFO L140 encePairwiseOnDemand]: 80/87 looper letters, 83 selfloop transitions, 8 changer transitions 0/102 dead transitions. [2024-06-27 19:39:23,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 102 transitions, 573 flow [2024-06-27 19:39:23,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:39:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:39:23,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 174 transitions. [2024-06-27 19:39:23,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-27 19:39:23,688 INFO L175 Difference]: Start difference. First operand has 60 places, 62 transitions, 286 flow. Second operand 4 states and 174 transitions. [2024-06-27 19:39:23,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 102 transitions, 573 flow [2024-06-27 19:39:23,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 102 transitions, 549 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 19:39:23,705 INFO L231 Difference]: Finished difference. Result has 60 places, 61 transitions, 297 flow [2024-06-27 19:39:23,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=297, PETRI_PLACES=60, PETRI_TRANSITIONS=61} [2024-06-27 19:39:23,707 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2024-06-27 19:39:23,707 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 61 transitions, 297 flow [2024-06-27 19:39:23,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 19:39:23,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:39:23,707 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] [2024-06-27 19:39:23,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 19:39:23,708 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:39:23,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:39:23,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1379506937, now seen corresponding path program 2 times [2024-06-27 19:39:23,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:39:23,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054086853] [2024-06-27 19:39:23,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:39:23,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:39:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:39:23,782 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 19:39:23,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:39:23,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054086853] [2024-06-27 19:39:23,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054086853] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:39:23,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:39:23,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:39:23,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558086914] [2024-06-27 19:39:23,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:39:23,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:39:23,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:39:23,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:39:23,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:39:23,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 87 [2024-06-27 19:39:23,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 61 transitions, 297 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 19:39:23,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:39:23,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 87 [2024-06-27 19:39:23,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:39:24,839 INFO L124 PetriNetUnfolderBase]: 5960/10039 cut-off events. [2024-06-27 19:39:24,839 INFO L125 PetriNetUnfolderBase]: For 11480/11480 co-relation queries the response was YES. [2024-06-27 19:39:24,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24007 conditions, 10039 events. 5960/10039 cut-off events. For 11480/11480 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 59359 event pairs, 2370 based on Foata normal form. 55/8859 useless extension candidates. Maximal degree in co-relation 16159. Up to 3862 conditions per place. [2024-06-27 19:39:24,890 INFO L140 encePairwiseOnDemand]: 81/87 looper letters, 88 selfloop transitions, 11 changer transitions 0/110 dead transitions. [2024-06-27 19:39:24,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 110 transitions, 645 flow [2024-06-27 19:39:24,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:39:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:39:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-06-27 19:39:24,891 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5057471264367817 [2024-06-27 19:39:24,892 INFO L175 Difference]: Start difference. First operand has 60 places, 61 transitions, 297 flow. Second operand 4 states and 176 transitions. [2024-06-27 19:39:24,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 110 transitions, 645 flow [2024-06-27 19:39:24,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 110 transitions, 633 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-06-27 19:39:24,920 INFO L231 Difference]: Finished difference. Result has 65 places, 65 transitions, 379 flow [2024-06-27 19:39:24,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=379, PETRI_PLACES=65, PETRI_TRANSITIONS=65} [2024-06-27 19:39:24,920 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 16 predicate places. [2024-06-27 19:39:24,921 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 65 transitions, 379 flow [2024-06-27 19:39:24,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 19:39:24,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:39:24,921 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 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 19:39:24,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 19:39:24,922 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:39:24,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:39:24,922 INFO L85 PathProgramCache]: Analyzing trace with hash -434343699, now seen corresponding path program 1 times [2024-06-27 19:39:24,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:39:24,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995846342] [2024-06-27 19:39:24,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:39:24,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:39:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:39:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-27 19:39:25,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:39:25,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995846342] [2024-06-27 19:39:25,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995846342] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:39:25,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:39:25,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:39:25,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839617] [2024-06-27 19:39:25,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:39:25,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:39:25,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:39:25,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:39:25,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:39:25,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 87 [2024-06-27 19:39:25,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 65 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 19:39:25,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:39:25,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 87 [2024-06-27 19:39:25,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:39:25,958 INFO L124 PetriNetUnfolderBase]: 6000/9882 cut-off events. [2024-06-27 19:39:25,958 INFO L125 PetriNetUnfolderBase]: For 15778/15778 co-relation queries the response was YES. [2024-06-27 19:39:25,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25397 conditions, 9882 events. 6000/9882 cut-off events. For 15778/15778 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 54598 event pairs, 4212 based on Foata normal form. 93/8790 useless extension candidates. Maximal degree in co-relation 17219. Up to 8076 conditions per place. [2024-06-27 19:39:26,004 INFO L140 encePairwiseOnDemand]: 81/87 looper letters, 60 selfloop transitions, 8 changer transitions 8/87 dead transitions. [2024-06-27 19:39:26,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 87 transitions, 576 flow [2024-06-27 19:39:26,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:39:26,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:39:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 130 transitions. [2024-06-27 19:39:26,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49808429118773945 [2024-06-27 19:39:26,006 INFO L175 Difference]: Start difference. First operand has 65 places, 65 transitions, 379 flow. Second operand 3 states and 130 transitions. [2024-06-27 19:39:26,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 87 transitions, 576 flow [2024-06-27 19:39:26,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 87 transitions, 576 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-27 19:39:26,039 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 391 flow [2024-06-27 19:39:26,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=391, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-06-27 19:39:26,039 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 18 predicate places. [2024-06-27 19:39:26,040 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 391 flow [2024-06-27 19:39:26,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 19:39:26,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:39:26,040 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 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 19:39:26,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 19:39:26,041 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:39:26,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:39:26,041 INFO L85 PathProgramCache]: Analyzing trace with hash 2040766972, now seen corresponding path program 1 times [2024-06-27 19:39:26,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:39:26,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124925678] [2024-06-27 19:39:26,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:39:26,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:39:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:39:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-27 19:39:26,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:39:26,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124925678] [2024-06-27 19:39:26,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124925678] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:39:26,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:39:26,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:39:26,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043314291] [2024-06-27 19:39:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:39:26,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:39:26,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:39:26,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:39:26,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:39:26,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 87 [2024-06-27 19:39:26,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 391 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 19:39:26,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:39:26,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 87 [2024-06-27 19:39:26,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:39:26,497 INFO L124 PetriNetUnfolderBase]: 2070/3602 cut-off events. [2024-06-27 19:39:26,497 INFO L125 PetriNetUnfolderBase]: For 6504/6504 co-relation queries the response was YES. [2024-06-27 19:39:26,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8984 conditions, 3602 events. 2070/3602 cut-off events. For 6504/6504 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 18286 event pairs, 1313 based on Foata normal form. 49/3341 useless extension candidates. Maximal degree in co-relation 6711. Up to 2366 conditions per place. [2024-06-27 19:39:26,510 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2024-06-27 19:39:26,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 95 transitions, 638 flow [2024-06-27 19:39:26,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:39:26,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:39:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions. [2024-06-27 19:39:26,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45977011494252873 [2024-06-27 19:39:26,512 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 391 flow. Second operand 4 states and 160 transitions. [2024-06-27 19:39:26,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 95 transitions, 638 flow [2024-06-27 19:39:26,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 95 transitions, 591 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-06-27 19:39:26,524 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2024-06-27 19:39:26,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2024-06-27 19:39:26,525 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 12 predicate places. [2024-06-27 19:39:26,525 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2024-06-27 19:39:26,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 19:39:26,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-27 19:39:26,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2024-06-27 19:39:26,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-27 19:39:26,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-27 19:39:26,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 6 remaining) [2024-06-27 19:39:26,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-27 19:39:26,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 19:39:26,530 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-06-27 19:39:26,534 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 19:39:26,535 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 19:39:26,538 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-27 19:39:26,538 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-27 19:39:26,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 07:39:26 BasicIcfg [2024-06-27 19:39:26,539 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 19:39:26,540 INFO L158 Benchmark]: Toolchain (without parser) took 9666.34ms. Allocated memory was 165.7MB in the beginning and 843.1MB in the end (delta: 677.4MB). Free memory was 86.0MB in the beginning and 280.0MB in the end (delta: -194.0MB). Peak memory consumption was 484.7MB. Max. memory is 16.1GB. [2024-06-27 19:39:26,540 INFO L158 Benchmark]: Witness Parser took 0.89ms. Allocated memory is still 165.7MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:39:26,540 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 165.7MB. Free memory is still 135.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:39:26,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 984.16ms. Allocated memory is still 165.7MB. Free memory was 85.8MB in the beginning and 74.7MB in the end (delta: 11.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-06-27 19:39:26,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.95ms. Allocated memory is still 165.7MB. Free memory was 74.7MB in the beginning and 71.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:39:26,541 INFO L158 Benchmark]: Boogie Preprocessor took 118.19ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 71.4MB in the beginning and 164.0MB in the end (delta: -92.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-06-27 19:39:26,542 INFO L158 Benchmark]: RCFGBuilder took 868.02ms. Allocated memory is still 199.2MB. Free memory was 164.0MB in the beginning and 110.6MB in the end (delta: 53.5MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-06-27 19:39:26,542 INFO L158 Benchmark]: TraceAbstraction took 7626.05ms. Allocated memory was 199.2MB in the beginning and 843.1MB in the end (delta: 643.8MB). Free memory was 110.6MB in the beginning and 280.0MB in the end (delta: -169.4MB). Peak memory consumption was 475.5MB. Max. memory is 16.1GB. [2024-06-27 19:39:26,544 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 0.89ms. Allocated memory is still 165.7MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 165.7MB. Free memory is still 135.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 984.16ms. Allocated memory is still 165.7MB. Free memory was 85.8MB in the beginning and 74.7MB in the end (delta: 11.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.95ms. Allocated memory is still 165.7MB. Free memory was 74.7MB in the beginning and 71.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.19ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 71.4MB in the beginning and 164.0MB in the end (delta: -92.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 868.02ms. Allocated memory is still 199.2MB. Free memory was 164.0MB in the beginning and 110.6MB in the end (delta: 53.5MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7626.05ms. Allocated memory was 199.2MB in the beginning and 843.1MB in the end (delta: 643.8MB). Free memory was 110.6MB in the beginning and 280.0MB in the end (delta: -169.4MB). Peak memory consumption was 475.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1781]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1719]: 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, 78 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.5s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 499 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 394 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1157 IncrementalHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 37 mSDtfsCounter, 1157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=391occurred in iteration=7, InterpolantAutomatonStates: 30, 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, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 294 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 13/13 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 19:39:26,575 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