./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 --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 16:23:11,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 16:23:11,563 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 16:23:11,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 16:23:11,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 16:23:11,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 16:23:11,606 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 16:23:11,607 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 16:23:11,608 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 16:23:11,611 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 16:23:11,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 16:23:11,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 16:23:11,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 16:23:11,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 16:23:11,614 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 16:23:11,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 16:23:11,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 16:23:11,615 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 16:23:11,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 16:23:11,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 16:23:11,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 16:23:11,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 16:23:11,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 16:23:11,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 16:23:11,617 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 16:23:11,618 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 16:23:11,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 16:23:11,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 16:23:11,619 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 16:23:11,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 16:23:11,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 16:23:11,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 16:23:11,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:23:11,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 16:23:11,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 16:23:11,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 16:23:11,622 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 16:23:11,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 16:23:11,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 16:23:11,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 16:23:11,623 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 16:23:11,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 16:23:11,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 16:23:11,624 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2024-06-27 16:23:11,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 16:23:11,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 16:23:11,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 16:23:11,937 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 16:23:11,937 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 16:23:11,938 INFO L431 ainManager$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 16:23:13,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 16:23:13,502 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 16:23:13,503 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-06-27 16:23:13,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d150b432d/80ba9b44fa2849a988f77a3e517ab764/FLAG88b6fa50a [2024-06-27 16:23:13,559 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d150b432d/80ba9b44fa2849a988f77a3e517ab764 [2024-06-27 16:23:13,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 16:23:13,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-06-27 16:23:13,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 16:23:13,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 16:23:13,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 16:23:13,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:23:13" (1/1) ... [2024-06-27 16:23:13,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b0f524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:13, skipping insertion in model container [2024-06-27 16:23:13,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:23:13" (1/1) ... [2024-06-27 16:23:13,634 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 16:23:14,342 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-06-27 16:23:14,449 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:23:14,463 INFO L202 MainTranslator]: Completed pre-run [2024-06-27 16:23:14,519 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-06-27 16:23:14,546 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:23:14,680 INFO L206 MainTranslator]: Completed translation [2024-06-27 16:23:14,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14 WrapperNode [2024-06-27 16:23:14,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 16:23:14,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 16:23:14,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 16:23:14,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 16:23:14,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,772 INFO L138 Inliner]: procedures = 487, calls = 36, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 203 [2024-06-27 16:23:14,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 16:23:14,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 16:23:14,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 16:23:14,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 16:23:14,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,794 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,845 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 16:23:14,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 16:23:14,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 16:23:14,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 16:23:14,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 16:23:14,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (1/1) ... [2024-06-27 16:23:14,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:23:14,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 16:23:14,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-27 16:23:14,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-27 16:23:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-06-27 16:23:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-06-27 16:23:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-06-27 16:23:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-06-27 16:23:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-06-27 16:23:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 16:23:15,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 16:23:15,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-06-27 16:23:15,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-06-27 16:23:15,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-06-27 16:23:15,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-06-27 16:23:15,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 16:23:15,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 16:23:15,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-06-27 16:23:15,012 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 16:23:15,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 16:23:15,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 16:23:15,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 16:23:15,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-27 16:23:15,015 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 16:23:15,350 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 16:23:15,358 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 16:23:15,674 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 16:23:15,675 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 16:23:15,810 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 16:23:15,811 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-06-27 16:23:15,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:23:15 BoogieIcfgContainer [2024-06-27 16:23:15,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 16:23:15,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 16:23:15,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 16:23:15,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 16:23:15,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 04:23:13" (1/3) ... [2024-06-27 16:23:15,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c76b5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:23:15, skipping insertion in model container [2024-06-27 16:23:15,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:23:14" (2/3) ... [2024-06-27 16:23:15,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c76b5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:23:15, skipping insertion in model container [2024-06-27 16:23:15,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:23:15" (3/3) ... [2024-06-27 16:23:15,822 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-06-27 16:23:15,830 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-06-27 16:23:15,839 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 16:23:15,839 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 16:23:15,839 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 16:23:15,901 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-06-27 16:23:15,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 120 transitions, 267 flow [2024-06-27 16:23:16,002 INFO L124 PetriNetUnfolderBase]: 28/120 cut-off events. [2024-06-27 16:23:16,002 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-27 16:23:16,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 120 events. 28/120 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 350 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 91. Up to 11 conditions per place. [2024-06-27 16:23:16,011 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 120 transitions, 267 flow [2024-06-27 16:23:16,018 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 79 transitions, 174 flow [2024-06-27 16:23:16,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 16:23:16,034 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@41eb428, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 16:23:16,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-06-27 16:23:16,037 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 16:23:16,038 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-06-27 16:23:16,038 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:23:16,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:16,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-06-27 16:23:16,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-06-27 16:23:16,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:16,045 INFO L85 PathProgramCache]: Analyzing trace with hash 540237, now seen corresponding path program 1 times [2024-06-27 16:23:16,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:16,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292696421] [2024-06-27 16:23:16,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:16,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:16,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:16,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292696421] [2024-06-27 16:23:16,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292696421] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:16,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:16,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 16:23:16,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569375682] [2024-06-27 16:23:16,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:16,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 16:23:16,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 16:23:16,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 16:23:16,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 120 [2024-06-27 16:23:16,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 79 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:16,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:16,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 120 [2024-06-27 16:23:16,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:16,670 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([584] L1746-2-->L1745-2: Formula: true InVars {} OutVars{thread_usbThread1of1ForFork1_#t~nondet40#1=|v_thread_usbThread1of1ForFork1_#t~nondet40#1_7|, thread_usbThread1of1ForFork1_#t~switch41#1=|v_thread_usbThread1of1ForFork1_#t~switch41#1_15|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork1_#t~nondet40#1, thread_usbThread1of1ForFork1_#t~switch41#1][19], [5#L1745-2true, thread_usbThread1of1ForFork1InUse, 2#ULTIMATE.startEXITtrue, 98#true, thread_ath9kThread1of1ForFork0NotInUse]) [2024-06-27 16:23:16,670 INFO L294 olderBase$Statistics]: this new event has 17 ancestors and is cut-off event [2024-06-27 16:23:16,670 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2024-06-27 16:23:16,670 INFO L297 olderBase$Statistics]: existing Event has 14 ancestors and is cut-off event [2024-06-27 16:23:16,671 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2024-06-27 16:23:17,123 INFO L124 PetriNetUnfolderBase]: 1734/3204 cut-off events. [2024-06-27 16:23:17,123 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-06-27 16:23:17,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5828 conditions, 3204 events. 1734/3204 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 20472 event pairs, 1381 based on Foata normal form. 155/2829 useless extension candidates. Maximal degree in co-relation 5561. Up to 2533 conditions per place. [2024-06-27 16:23:17,158 INFO L140 encePairwiseOnDemand]: 107/120 looper letters, 48 selfloop transitions, 4 changer transitions 2/76 dead transitions. [2024-06-27 16:23:17,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 76 transitions, 276 flow [2024-06-27 16:23:17,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 16:23:17,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 16:23:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2024-06-27 16:23:17,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-06-27 16:23:17,175 INFO L175 Difference]: Start difference. First operand has 67 places, 79 transitions, 174 flow. Second operand 3 states and 190 transitions. [2024-06-27 16:23:17,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 76 transitions, 276 flow [2024-06-27 16:23:17,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 76 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 16:23:17,186 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 150 flow [2024-06-27 16:23:17,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2024-06-27 16:23:17,193 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -6 predicate places. [2024-06-27 16:23:17,194 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 150 flow [2024-06-27 16:23:17,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:17,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:17,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:17,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 16:23:17,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-06-27 16:23:17,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:17,209 INFO L85 PathProgramCache]: Analyzing trace with hash 771822551, now seen corresponding path program 1 times [2024-06-27 16:23:17,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:17,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330277810] [2024-06-27 16:23:17,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:17,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:17,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:17,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330277810] [2024-06-27 16:23:17,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330277810] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:17,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:17,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 16:23:17,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75731177] [2024-06-27 16:23:17,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:17,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 16:23:17,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:17,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 16:23:17,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 16:23:17,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 120 [2024-06-27 16:23:17,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:17,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:17,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 120 [2024-06-27 16:23:17,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:17,485 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([584] L1746-2-->L1745-2: Formula: true InVars {} OutVars{thread_usbThread1of1ForFork1_#t~nondet40#1=|v_thread_usbThread1of1ForFork1_#t~nondet40#1_7|, thread_usbThread1of1ForFork1_#t~switch41#1=|v_thread_usbThread1of1ForFork1_#t~switch41#1_15|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork1_#t~nondet40#1, thread_usbThread1of1ForFork1_#t~switch41#1][18], [5#L1745-2true, 101#true, 2#ULTIMATE.startEXITtrue, 98#true, thread_ath9kThread1of1ForFork0NotInUse]) [2024-06-27 16:23:17,486 INFO L294 olderBase$Statistics]: this new event has 17 ancestors and is cut-off event [2024-06-27 16:23:17,486 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2024-06-27 16:23:17,487 INFO L297 olderBase$Statistics]: existing Event has 14 ancestors and is cut-off event [2024-06-27 16:23:17,487 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2024-06-27 16:23:17,788 INFO L124 PetriNetUnfolderBase]: 1870/3322 cut-off events. [2024-06-27 16:23:17,788 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-06-27 16:23:17,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6166 conditions, 3322 events. 1870/3322 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 20358 event pairs, 1283 based on Foata normal form. 0/2809 useless extension candidates. Maximal degree in co-relation 5977. Up to 2365 conditions per place. [2024-06-27 16:23:17,807 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 53 selfloop transitions, 4 changer transitions 1/76 dead transitions. [2024-06-27 16:23:17,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 76 transitions, 288 flow [2024-06-27 16:23:17,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 16:23:17,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 16:23:17,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2024-06-27 16:23:17,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-06-27 16:23:17,811 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 150 flow. Second operand 3 states and 192 transitions. [2024-06-27 16:23:17,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 76 transitions, 288 flow [2024-06-27 16:23:17,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 76 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 16:23:17,814 INFO L231 Difference]: Finished difference. Result has 56 places, 61 transitions, 142 flow [2024-06-27 16:23:17,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=56, PETRI_TRANSITIONS=61} [2024-06-27 16:23:17,815 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -11 predicate places. [2024-06-27 16:23:17,815 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 61 transitions, 142 flow [2024-06-27 16:23:17,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:17,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:17,816 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:17,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 16:23:17,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-06-27 16:23:17,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:17,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1319629460, now seen corresponding path program 1 times [2024-06-27 16:23:17,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:17,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593240131] [2024-06-27 16:23:17,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:17,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:17,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:17,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593240131] [2024-06-27 16:23:17,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593240131] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:17,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:17,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 16:23:17,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765919493] [2024-06-27 16:23:17,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:17,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 16:23:17,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:17,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 16:23:17,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 16:23:17,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 120 [2024-06-27 16:23:17,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 61 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:17,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:17,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 120 [2024-06-27 16:23:17,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:17,989 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([584] L1746-2-->L1745-2: Formula: true InVars {} OutVars{thread_usbThread1of1ForFork1_#t~nondet40#1=|v_thread_usbThread1of1ForFork1_#t~nondet40#1_7|, thread_usbThread1of1ForFork1_#t~switch41#1=|v_thread_usbThread1of1ForFork1_#t~switch41#1_15|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork1_#t~nondet40#1, thread_usbThread1of1ForFork1_#t~switch41#1][18], [5#L1745-2true, 101#true, 2#ULTIMATE.startEXITtrue, 104#true, thread_ath9kThread1of1ForFork0NotInUse]) [2024-06-27 16:23:17,989 INFO L294 olderBase$Statistics]: this new event has 17 ancestors and is cut-off event [2024-06-27 16:23:17,990 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2024-06-27 16:23:17,990 INFO L297 olderBase$Statistics]: existing Event has 14 ancestors and is cut-off event [2024-06-27 16:23:17,990 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2024-06-27 16:23:18,289 INFO L124 PetriNetUnfolderBase]: 1869/3137 cut-off events. [2024-06-27 16:23:18,290 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-06-27 16:23:18,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6109 conditions, 3137 events. 1869/3137 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 17788 event pairs, 1250 based on Foata normal form. 0/2690 useless extension candidates. Maximal degree in co-relation 4834. Up to 2329 conditions per place. [2024-06-27 16:23:18,308 INFO L140 encePairwiseOnDemand]: 117/120 looper letters, 51 selfloop transitions, 2 changer transitions 12/80 dead transitions. [2024-06-27 16:23:18,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 80 transitions, 311 flow [2024-06-27 16:23:18,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 16:23:18,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 16:23:18,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2024-06-27 16:23:18,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5611111111111111 [2024-06-27 16:23:18,313 INFO L175 Difference]: Start difference. First operand has 56 places, 61 transitions, 142 flow. Second operand 3 states and 202 transitions. [2024-06-27 16:23:18,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 80 transitions, 311 flow [2024-06-27 16:23:18,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 80 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 16:23:18,319 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 119 flow [2024-06-27 16:23:18,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2024-06-27 16:23:18,321 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -13 predicate places. [2024-06-27 16:23:18,321 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 119 flow [2024-06-27 16:23:18,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:18,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:23:18,322 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:23:18,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 16:23:18,322 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-06-27 16:23:18,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:23:18,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1690516083, now seen corresponding path program 1 times [2024-06-27 16:23:18,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:23:18,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014339936] [2024-06-27 16:23:18,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:23:18,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:23:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:23:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:23:18,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:23:18,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014339936] [2024-06-27 16:23:18,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014339936] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:23:18,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:23:18,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 16:23:18,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101920207] [2024-06-27 16:23:18,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:23:18,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 16:23:18,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:23:18,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 16:23:18,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 16:23:18,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 120 [2024-06-27 16:23:18,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:18,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:23:18,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 120 [2024-06-27 16:23:18,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:23:18,663 INFO L124 PetriNetUnfolderBase]: 1371/2345 cut-off events. [2024-06-27 16:23:18,663 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-06-27 16:23:18,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4324 conditions, 2345 events. 1371/2345 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 12488 event pairs, 330 based on Foata normal form. 144/2201 useless extension candidates. Maximal degree in co-relation 2904. Up to 1241 conditions per place. [2024-06-27 16:23:18,669 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2024-06-27 16:23:18,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 71 transitions, 276 flow [2024-06-27 16:23:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 16:23:18,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 16:23:18,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2024-06-27 16:23:18,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5361111111111111 [2024-06-27 16:23:18,671 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 119 flow. Second operand 3 states and 193 transitions. [2024-06-27 16:23:18,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 71 transitions, 276 flow [2024-06-27 16:23:18,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 71 transitions, 262 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 16:23:18,674 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-06-27 16:23:18,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-06-27 16:23:18,676 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -22 predicate places. [2024-06-27 16:23:18,676 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-06-27 16:23:18,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:23:18,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2024-06-27 16:23:18,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2024-06-27 16:23:18,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2024-06-27 16:23:18,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2024-06-27 16:23:18,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2024-06-27 16:23:18,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2024-06-27 16:23:18,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2024-06-27 16:23:18,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2024-06-27 16:23:18,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2024-06-27 16:23:18,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2024-06-27 16:23:18,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2024-06-27 16:23:18,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2024-06-27 16:23:18,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 16:23:18,684 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-27 16:23:18,689 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 16:23:18,689 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 16:23:18,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 04:23:18 BasicIcfg [2024-06-27 16:23:18,698 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 16:23:18,699 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-06-27 16:23:18,699 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-06-27 16:23:18,700 INFO L274 PluginConnector]: Witness Printer initialized [2024-06-27 16:23:18,700 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:23:15" (3/4) ... [2024-06-27 16:23:18,702 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-06-27 16:23:18,705 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2024-06-27 16:23:18,706 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2024-06-27 16:23:18,713 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2024-06-27 16:23:18,713 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-06-27 16:23:18,716 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-06-27 16:23:18,716 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-06-27 16:23:18,797 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-06-27 16:23:18,797 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-06-27 16:23:18,797 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-06-27 16:23:18,798 INFO L158 Benchmark]: Toolchain (without parser) took 5234.23ms. Allocated memory was 174.1MB in the beginning and 299.9MB in the end (delta: 125.8MB). Free memory was 112.1MB in the beginning and 242.3MB in the end (delta: -130.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 16:23:18,798 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 16:23:18,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1114.27ms. Allocated memory is still 174.1MB. Free memory was 112.1MB in the beginning and 52.7MB in the end (delta: 59.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-06-27 16:23:18,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.16ms. Allocated memory is still 174.1MB. Free memory was 52.7MB in the beginning and 49.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 16:23:18,799 INFO L158 Benchmark]: Boogie Preprocessor took 115.43ms. Allocated memory was 174.1MB in the beginning and 218.1MB in the end (delta: 44.0MB). Free memory was 49.2MB in the beginning and 184.6MB in the end (delta: -135.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-06-27 16:23:18,799 INFO L158 Benchmark]: RCFGBuilder took 921.92ms. Allocated memory is still 218.1MB. Free memory was 184.6MB in the beginning and 141.6MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-06-27 16:23:18,800 INFO L158 Benchmark]: TraceAbstraction took 2884.41ms. Allocated memory was 218.1MB in the beginning and 299.9MB in the end (delta: 81.8MB). Free memory was 141.6MB in the beginning and 247.6MB in the end (delta: -106.0MB). Peak memory consumption was 141.8MB. Max. memory is 16.1GB. [2024-06-27 16:23:18,800 INFO L158 Benchmark]: Witness Printer took 98.17ms. Allocated memory is still 299.9MB. Free memory was 247.6MB in the beginning and 242.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-06-27 16:23:18,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1114.27ms. Allocated memory is still 174.1MB. Free memory was 112.1MB in the beginning and 52.7MB in the end (delta: 59.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.16ms. Allocated memory is still 174.1MB. Free memory was 52.7MB in the beginning and 49.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.43ms. Allocated memory was 174.1MB in the beginning and 218.1MB in the end (delta: 44.0MB). Free memory was 49.2MB in the beginning and 184.6MB in the end (delta: -135.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * RCFGBuilder took 921.92ms. Allocated memory is still 218.1MB. Free memory was 184.6MB in the beginning and 141.6MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2884.41ms. Allocated memory was 218.1MB in the beginning and 299.9MB in the end (delta: 81.8MB). Free memory was 141.6MB in the beginning and 247.6MB in the end (delta: -106.0MB). Peak memory consumption was 141.8MB. Max. memory is 16.1GB. * Witness Printer took 98.17ms. Allocated memory is still 299.9MB. Free memory was 247.6MB in the beginning and 242.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 398 IncrementalHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 10 mSDtfsCounter, 398 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0.5s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 5/5 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 16:23:18,829 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