./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-sets/test_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/ldv-sets/test_mutex.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 cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 13:00:03,549 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 13:00:03,610 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 13:00:03,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 13:00:03,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 13:00:03,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 13:00:03,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 13:00:03,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 13:00:03,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 13:00:03,645 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 13:00:03,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 13:00:03,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 13:00:03,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 13:00:03,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 13:00:03,646 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 13:00:03,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 13:00:03,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 13:00:03,646 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 13:00:03,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 13:00:03,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 13:00:03,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 13:00:03,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 13:00:03,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 13:00:03,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 13:00:03,649 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 13:00:03,649 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 13:00:03,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 13:00:03,650 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 13:00:03,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 13:00:03,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 13:00:03,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 13:00:03,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 13:00:03,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 13:00:03,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 13:00:03,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 13:00:03,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 13:00:03,652 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 13:00:03,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 13:00:03,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 13:00:03,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 13:00:03,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 13:00:03,653 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 13:00:03,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 [2024-11-18 13:00:03,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 13:00:03,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 13:00:03,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 13:00:03,892 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 13:00:03,892 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 13:00:03,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_mutex.i [2024-11-18 13:00:05,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 13:00:05,355 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 13:00:05,355 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i [2024-11-18 13:00:05,370 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc04d95b1/636cd3587b2e4ac8b7abbd7925d50ec3/FLAGf65ff50bc [2024-11-18 13:00:05,708 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc04d95b1/636cd3587b2e4ac8b7abbd7925d50ec3 [2024-11-18 13:00:05,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 13:00:05,712 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 13:00:05,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 13:00:05,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 13:00:05,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 13:00:05,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:00:05" (1/1) ... [2024-11-18 13:00:05,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f6be2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:05, skipping insertion in model container [2024-11-18 13:00:05,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:00:05" (1/1) ... [2024-11-18 13:00:05,763 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 13:00:06,054 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2024-11-18 13:00:06,062 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2024-11-18 13:00:06,063 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2024-11-18 13:00:06,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 13:00:06,076 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 13:00:06,110 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2024-11-18 13:00:06,112 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2024-11-18 13:00:06,112 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2024-11-18 13:00:06,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 13:00:06,173 INFO L204 MainTranslator]: Completed translation [2024-11-18 13:00:06,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06 WrapperNode [2024-11-18 13:00:06,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 13:00:06,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 13:00:06,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 13:00:06,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 13:00:06,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,227 INFO L138 Inliner]: procedures = 139, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 140 [2024-11-18 13:00:06,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 13:00:06,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 13:00:06,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 13:00:06,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 13:00:06,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,264 INFO L175 MemorySlicer]: Split 22 memory accesses to 2 slices as follows [2, 20]. 91 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 7 writes are split as follows [0, 7]. [2024-11-18 13:00:06,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 13:00:06,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 13:00:06,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 13:00:06,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 13:00:06,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (1/1) ... [2024-11-18 13:00:06,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 13:00:06,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:00:06,317 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) [2024-11-18 13:00:06,320 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 [2024-11-18 13:00:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2024-11-18 13:00:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2024-11-18 13:00:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-18 13:00:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-18 13:00:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-18 13:00:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-18 13:00:06,362 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-18 13:00:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 13:00:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-18 13:00:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-18 13:00:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2024-11-18 13:00:06,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2024-11-18 13:00:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-18 13:00:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-18 13:00:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 13:00:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-18 13:00:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-18 13:00:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 13:00:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 13:00:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2024-11-18 13:00:06,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2024-11-18 13:00:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 13:00:06,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 13:00:06,492 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 13:00:06,495 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 13:00:06,715 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-18 13:00:06,715 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 13:00:06,732 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 13:00:06,732 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 13:00:06,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:00:06 BoogieIcfgContainer [2024-11-18 13:00:06,733 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 13:00:06,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 13:00:06,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 13:00:06,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 13:00:06,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:00:05" (1/3) ... [2024-11-18 13:00:06,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154eb467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:00:06, skipping insertion in model container [2024-11-18 13:00:06,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:00:06" (2/3) ... [2024-11-18 13:00:06,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154eb467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:00:06, skipping insertion in model container [2024-11-18 13:00:06,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:00:06" (3/3) ... [2024-11-18 13:00:06,740 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex.i [2024-11-18 13:00:06,753 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 13:00:06,753 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-18 13:00:06,799 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 13:00:06,804 INFO L333 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, 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;@4dd188f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 13:00:06,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-18 13:00:06,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 50 states have (on average 1.28) internal successors, (64), 53 states have internal predecessors, (64), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-18 13:00:06,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 13:00:06,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:00:06,813 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:00:06,814 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:00:06,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:00:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash 709034920, now seen corresponding path program 1 times [2024-11-18 13:00:06,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:00:06,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502890434] [2024-11-18 13:00:06,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:06,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:00:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:06,977 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 13:00:06,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:00:06,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502890434] [2024-11-18 13:00:06,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502890434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:00:06,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970242941] [2024-11-18 13:00:06,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:06,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:00:06,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:00:06,984 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:00:06,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 13:00:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:07,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 13:00:07,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:00:07,127 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:00:07,130 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:00:07,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970242941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:00:07,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:00:07,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 13:00:07,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839940996] [2024-11-18 13:00:07,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:00:07,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 13:00:07,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:00:07,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 13:00:07,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 13:00:07,155 INFO L87 Difference]: Start difference. First operand has 70 states, 50 states have (on average 1.28) internal successors, (64), 53 states have internal predecessors, (64), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 13:00:07,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:00:07,174 INFO L93 Difference]: Finished difference Result 136 states and 177 transitions. [2024-11-18 13:00:07,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 13:00:07,176 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-18 13:00:07,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:00:07,182 INFO L225 Difference]: With dead ends: 136 [2024-11-18 13:00:07,183 INFO L226 Difference]: Without dead ends: 65 [2024-11-18 13:00:07,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 13:00:07,188 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:00:07,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:00:07,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-18 13:00:07,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-18 13:00:07,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 48 states have internal predecessors, (53), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-18 13:00:07,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2024-11-18 13:00:07,220 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 28 [2024-11-18 13:00:07,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:00:07,220 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2024-11-18 13:00:07,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 13:00:07,220 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2024-11-18 13:00:07,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 13:00:07,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:00:07,221 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:00:07,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 13:00:07,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 13:00:07,423 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:00:07,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:00:07,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2117471768, now seen corresponding path program 1 times [2024-11-18 13:00:07,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:00:07,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154847801] [2024-11-18 13:00:07,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:07,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:00:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:07,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 13:00:07,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:00:07,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154847801] [2024-11-18 13:00:07,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154847801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:00:07,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:00:07,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:00:07,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433179296] [2024-11-18 13:00:07,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:00:07,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:00:07,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:00:07,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:00:07,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:00:07,596 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 13:00:07,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:00:07,623 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2024-11-18 13:00:07,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:00:07,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-11-18 13:00:07,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:00:07,627 INFO L225 Difference]: With dead ends: 71 [2024-11-18 13:00:07,628 INFO L226 Difference]: Without dead ends: 69 [2024-11-18 13:00:07,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:00:07,630 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:00:07,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:00:07,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-18 13:00:07,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-11-18 13:00:07,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 51 states have internal predecessors, (56), 11 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-18 13:00:07,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2024-11-18 13:00:07,643 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 28 [2024-11-18 13:00:07,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:00:07,644 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2024-11-18 13:00:07,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 13:00:07,644 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2024-11-18 13:00:07,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 13:00:07,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:00:07,645 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:00:07,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 13:00:07,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:00:07,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:00:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash -542868463, now seen corresponding path program 1 times [2024-11-18 13:00:07,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:00:07,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442749346] [2024-11-18 13:00:07,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:07,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:00:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:07,971 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 13:00:07,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:00:07,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442749346] [2024-11-18 13:00:07,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442749346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:00:07,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:00:07,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 13:00:07,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444784087] [2024-11-18 13:00:07,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:00:07,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:00:07,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:00:07,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:00:07,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 13:00:07,973 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 13:00:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:00:08,270 INFO L93 Difference]: Finished difference Result 195 states and 245 transitions. [2024-11-18 13:00:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 13:00:08,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-11-18 13:00:08,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:00:08,272 INFO L225 Difference]: With dead ends: 195 [2024-11-18 13:00:08,272 INFO L226 Difference]: Without dead ends: 134 [2024-11-18 13:00:08,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:00:08,276 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 81 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 13:00:08,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 217 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 13:00:08,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-18 13:00:08,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 111. [2024-11-18 13:00:08,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 79 states have (on average 1.1772151898734178) internal successors, (93), 83 states have internal predecessors, (93), 18 states have call successors, (18), 9 states have call predecessors, (18), 11 states have return successors, (26), 18 states have call predecessors, (26), 18 states have call successors, (26) [2024-11-18 13:00:08,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 137 transitions. [2024-11-18 13:00:08,302 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 137 transitions. Word has length 28 [2024-11-18 13:00:08,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:00:08,302 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 137 transitions. [2024-11-18 13:00:08,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 13:00:08,303 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 137 transitions. [2024-11-18 13:00:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 13:00:08,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:00:08,305 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 13:00:08,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 13:00:08,306 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:00:08,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:00:08,306 INFO L85 PathProgramCache]: Analyzing trace with hash 391053642, now seen corresponding path program 1 times [2024-11-18 13:00:08,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:00:08,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362564811] [2024-11-18 13:00:08,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:08,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:00:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:08,416 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-18 13:00:08,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:00:08,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362564811] [2024-11-18 13:00:08,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362564811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:00:08,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688581845] [2024-11-18 13:00:08,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:08,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:00:08,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:00:08,424 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:00:08,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 13:00:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:08,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-18 13:00:08,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:00:08,610 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-18 13:00:08,611 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:00:08,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688581845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:00:08,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:00:08,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-18 13:00:08,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358697508] [2024-11-18 13:00:08,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:00:08,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:00:08,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:00:08,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:00:08,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:00:08,618 INFO L87 Difference]: Start difference. First operand 111 states and 137 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 13:00:08,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:00:08,647 INFO L93 Difference]: Finished difference Result 201 states and 248 transitions. [2024-11-18 13:00:08,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:00:08,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2024-11-18 13:00:08,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:00:08,649 INFO L225 Difference]: With dead ends: 201 [2024-11-18 13:00:08,649 INFO L226 Difference]: Without dead ends: 117 [2024-11-18 13:00:08,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:00:08,651 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:00:08,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:00:08,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-18 13:00:08,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-18 13:00:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 87 states have internal predecessors, (98), 18 states have call successors, (18), 9 states have call predecessors, (18), 12 states have return successors, (27), 20 states have call predecessors, (27), 18 states have call successors, (27) [2024-11-18 13:00:08,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 143 transitions. [2024-11-18 13:00:08,677 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 143 transitions. Word has length 72 [2024-11-18 13:00:08,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:00:08,678 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 143 transitions. [2024-11-18 13:00:08,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 13:00:08,678 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 143 transitions. [2024-11-18 13:00:08,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-18 13:00:08,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:00:08,680 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:00:08,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 13:00:08,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-18 13:00:08,886 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:00:08,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:00:08,887 INFO L85 PathProgramCache]: Analyzing trace with hash 336841398, now seen corresponding path program 1 times [2024-11-18 13:00:08,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:00:08,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007753681] [2024-11-18 13:00:08,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:08,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:00:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:12,772 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 13:00:12,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:00:12,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007753681] [2024-11-18 13:00:12,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007753681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:00:12,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847366481] [2024-11-18 13:00:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:12,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:00:12,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:00:12,779 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:00:12,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 13:00:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:12,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 158 conjuncts are in the unsatisfiable core [2024-11-18 13:00:12,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:00:13,194 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-18 13:00:13,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-18 13:00:13,487 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-18 13:00:13,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-18 13:00:14,379 INFO L349 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2024-11-18 13:00:14,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 236 [2024-11-18 13:00:14,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-18 13:00:14,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-18 13:00:14,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-18 13:00:14,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-18 13:00:14,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:14,910 INFO L349 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2024-11-18 13:00:14,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 420 treesize of output 419 [2024-11-18 13:00:14,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-18 13:00:15,155 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:15,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 11 [2024-11-18 13:00:16,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:16,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 1 [2024-11-18 13:00:16,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:16,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 1 [2024-11-18 13:00:17,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:17,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:17,305 INFO L349 Elim1Store]: treesize reduction 203, result has 0.5 percent of original size [2024-11-18 13:00:17,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 315 treesize of output 257 [2024-11-18 13:00:17,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:17,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:17,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 61 [2024-11-18 13:00:17,343 INFO L349 Elim1Store]: treesize reduction 27, result has 32.5 percent of original size [2024-11-18 13:00:17,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 17 [2024-11-18 13:00:17,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2024-11-18 13:00:17,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:17,367 INFO L349 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2024-11-18 13:00:17,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2024-11-18 13:00:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 13:00:18,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 13:00:18,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847366481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:00:18,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 13:00:18,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 60 [2024-11-18 13:00:18,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517049950] [2024-11-18 13:00:18,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 13:00:18,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-18 13:00:18,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:00:18,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-18 13:00:18,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=4294, Unknown=6, NotChecked=0, Total=4556 [2024-11-18 13:00:18,974 INFO L87 Difference]: Start difference. First operand 117 states and 143 transitions. Second operand has 60 states, 49 states have (on average 1.7346938775510203) internal successors, (85), 43 states have internal predecessors, (85), 17 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-18 13:00:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:00:24,478 INFO L93 Difference]: Finished difference Result 263 states and 319 transitions. [2024-11-18 13:00:24,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-18 13:00:24,478 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 49 states have (on average 1.7346938775510203) internal successors, (85), 43 states have internal predecessors, (85), 17 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 63 [2024-11-18 13:00:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:00:24,482 INFO L225 Difference]: With dead ends: 263 [2024-11-18 13:00:24,482 INFO L226 Difference]: Without dead ends: 200 [2024-11-18 13:00:24,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2209 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=722, Invalid=9984, Unknown=6, NotChecked=0, Total=10712 [2024-11-18 13:00:24,488 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 487 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 3983 mSolverCounterSat, 143 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 4129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 3983 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:00:24,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 2499 Invalid, 4129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 3983 Invalid, 3 Unknown, 0 Unchecked, 3.5s Time] [2024-11-18 13:00:24,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-18 13:00:24,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 150. [2024-11-18 13:00:24,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 109 states have (on average 1.201834862385321) internal successors, (131), 115 states have internal predecessors, (131), 21 states have call successors, (21), 11 states have call predecessors, (21), 17 states have return successors, (36), 23 states have call predecessors, (36), 21 states have call successors, (36) [2024-11-18 13:00:24,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 188 transitions. [2024-11-18 13:00:24,520 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 188 transitions. Word has length 63 [2024-11-18 13:00:24,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:00:24,520 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 188 transitions. [2024-11-18 13:00:24,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 49 states have (on average 1.7346938775510203) internal successors, (85), 43 states have internal predecessors, (85), 17 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-18 13:00:24,521 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 188 transitions. [2024-11-18 13:00:24,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 13:00:24,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:00:24,525 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 13:00:24,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 13:00:24,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:00:24,726 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:00:24,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:00:24,727 INFO L85 PathProgramCache]: Analyzing trace with hash 2102607608, now seen corresponding path program 1 times [2024-11-18 13:00:24,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:00:24,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558385097] [2024-11-18 13:00:24,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:24,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:00:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-18 13:00:24,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:00:24,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558385097] [2024-11-18 13:00:24,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558385097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:00:25,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273519196] [2024-11-18 13:00:25,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:25,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:00:25,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:00:25,002 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:00:25,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 13:00:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:25,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-18 13:00:25,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:00:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-18 13:00:25,444 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:00:25,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273519196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:00:25,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:00:25,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2024-11-18 13:00:25,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562210118] [2024-11-18 13:00:25,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:00:25,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 13:00:25,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:00:25,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 13:00:25,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-18 13:00:25,446 INFO L87 Difference]: Start difference. First operand 150 states and 188 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-18 13:00:25,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:00:25,940 INFO L93 Difference]: Finished difference Result 312 states and 382 transitions. [2024-11-18 13:00:25,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 13:00:25,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 72 [2024-11-18 13:00:25,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:00:25,942 INFO L225 Difference]: With dead ends: 312 [2024-11-18 13:00:25,942 INFO L226 Difference]: Without dead ends: 156 [2024-11-18 13:00:25,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-18 13:00:25,944 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 169 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 13:00:25,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 246 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 13:00:25,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-18 13:00:25,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 134. [2024-11-18 13:00:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 99 states have (on average 1.1717171717171717) internal successors, (116), 104 states have internal predecessors, (116), 17 states have call successors, (17), 11 states have call predecessors, (17), 15 states have return successors, (26), 18 states have call predecessors, (26), 17 states have call successors, (26) [2024-11-18 13:00:25,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 159 transitions. [2024-11-18 13:00:25,958 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 159 transitions. Word has length 72 [2024-11-18 13:00:25,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:00:25,958 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 159 transitions. [2024-11-18 13:00:25,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-18 13:00:25,958 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 159 transitions. [2024-11-18 13:00:25,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 13:00:25,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:00:25,959 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:00:25,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 13:00:26,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:00:26,164 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:00:26,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:00:26,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1485354123, now seen corresponding path program 1 times [2024-11-18 13:00:26,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:00:26,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378203063] [2024-11-18 13:00:26,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:26,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:00:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 13:00:27,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:00:27,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378203063] [2024-11-18 13:00:27,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378203063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:00:27,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799561134] [2024-11-18 13:00:27,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:00:27,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:00:27,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:00:27,196 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:00:27,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 13:00:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:00:27,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 145 conjuncts are in the unsatisfiable core [2024-11-18 13:00:27,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:00:27,485 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-18 13:00:27,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-18 13:00:27,637 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-18 13:00:27,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-18 13:00:28,133 INFO L349 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2024-11-18 13:00:28,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 71 [2024-11-18 13:00:28,144 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-18 13:00:28,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 67 [2024-11-18 13:00:28,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2024-11-18 13:00:28,219 INFO L349 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2024-11-18 13:00:28,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 79 [2024-11-18 13:00:28,226 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-18 13:00:28,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 75 [2024-11-18 13:00:28,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2024-11-18 13:00:28,244 INFO L349 Elim1Store]: treesize reduction 24, result has 25.0 percent of original size [2024-11-18 13:00:28,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 42 [2024-11-18 13:00:28,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2024-11-18 13:00:28,286 INFO L349 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2024-11-18 13:00:28,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 46 [2024-11-18 13:00:28,385 INFO L349 Elim1Store]: treesize reduction 33, result has 31.3 percent of original size [2024-11-18 13:00:28,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2024-11-18 13:00:28,401 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:28,473 INFO L349 Elim1Store]: treesize reduction 38, result has 32.1 percent of original size [2024-11-18 13:00:28,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 91 treesize of output 104 [2024-11-18 13:00:28,486 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:28,510 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-11-18 13:00:28,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 72 treesize of output 56 [2024-11-18 13:00:28,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2024-11-18 13:00:28,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:28,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:28,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2024-11-18 13:00:28,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:28,625 INFO L349 Elim1Store]: treesize reduction 42, result has 36.4 percent of original size [2024-11-18 13:00:28,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 145 [2024-11-18 13:00:28,690 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:28,727 INFO L349 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2024-11-18 13:00:28,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 95 treesize of output 57 [2024-11-18 13:00:28,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-11-18 13:00:28,804 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:28,805 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:28,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2024-11-18 13:00:28,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:28,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2024-11-18 13:00:28,837 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:28,837 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:28,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2024-11-18 13:00:28,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:28,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 27 [2024-11-18 13:00:28,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 52 [2024-11-18 13:00:28,917 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:28,918 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:28,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 154 [2024-11-18 13:00:28,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:28,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:29,019 INFO L349 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2024-11-18 13:00:29,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2024-11-18 13:00:29,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-11-18 13:00:29,069 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:29,070 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:29,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2024-11-18 13:00:29,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:29,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:29,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 1 [2024-11-18 13:00:29,562 INFO L349 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2024-11-18 13:00:29,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 71 [2024-11-18 13:00:29,613 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:29,624 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-18 13:00:29,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 91 [2024-11-18 13:00:29,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:29,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 49 [2024-11-18 13:00:29,791 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:29,902 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-11-18 13:00:29,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 61 [2024-11-18 13:00:29,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-18 13:00:29,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:29,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:29,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:30,032 INFO L349 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2024-11-18 13:00:30,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 55 [2024-11-18 13:00:30,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-11-18 13:00:30,218 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:30,218 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:30,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2024-11-18 13:00:30,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:30,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:30,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:30,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 55 [2024-11-18 13:00:30,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2024-11-18 13:00:30,564 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:30,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 59 [2024-11-18 13:00:30,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-18 13:00:30,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:30,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 35 [2024-11-18 13:00:30,726 INFO L349 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2024-11-18 13:00:30,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 71 [2024-11-18 13:00:30,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2024-11-18 13:00:31,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-11-18 13:00:31,321 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:31,321 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:31,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2024-11-18 13:00:31,363 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:31,364 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:31,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 29 [2024-11-18 13:00:31,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:31,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:31,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:31,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2024-11-18 13:00:31,725 INFO L349 Elim1Store]: treesize reduction 33, result has 31.3 percent of original size [2024-11-18 13:00:31,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2024-11-18 13:00:31,803 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:32,217 INFO L349 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2024-11-18 13:00:32,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 301 treesize of output 272 [2024-11-18 13:00:32,294 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-18 13:00:32,307 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2024-11-18 13:00:32,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 299 treesize of output 245 [2024-11-18 13:00:32,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2024-11-18 13:00:32,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-18 13:00:32,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-18 13:00:41,850 WARN L286 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 278 DAG size of output: 198 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-18 13:00:43,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 44 [2024-11-18 13:00:43,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 141 [2024-11-18 13:00:43,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 93 [2024-11-18 13:00:43,683 INFO L349 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2024-11-18 13:00:43,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 46 [2024-11-18 13:00:43,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 55 [2024-11-18 13:00:44,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 43