./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 d82f1b23bea4834b28dfbe602ddf1f3e06a3ee60a847e3002a9403f092f2c830 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 01:34:34,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 01:34:34,879 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 01:34:34,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 01:34:34,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 01:34:34,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 01:34:34,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 01:34:34,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 01:34:34,911 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 01:34:34,911 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 01:34:34,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 01:34:34,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 01:34:34,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 01:34:34,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 01:34:34,914 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 01:34:34,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 01:34:34,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 01:34:34,915 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 01:34:34,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 01:34:34,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 01:34:34,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 01:34:34,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 01:34:34,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 01:34:34,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 01:34:34,918 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 01:34:34,918 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 01:34:34,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 01:34:34,918 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 01:34:34,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 01:34:34,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 01:34:34,919 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 01:34:34,919 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 01:34:34,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 01:34:34,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 01:34:34,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 01:34:34,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 01:34:34,920 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 01:34:34,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 01:34:34,920 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 01:34:34,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 01:34:34,920 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 01:34:34,921 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 01:34:34,921 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d82f1b23bea4834b28dfbe602ddf1f3e06a3ee60a847e3002a9403f092f2c830 [2024-10-11 01:34:35,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 01:34:35,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 01:34:35,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 01:34:35,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 01:34:35,182 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 01:34:35,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2024-10-11 01:34:36,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 01:34:36,580 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 01:34:36,580 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2024-10-11 01:34:36,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4d72531c7/322caf3c6e7d4878b5ac66f6ba510407/FLAG69e65ad50 [2024-10-11 01:34:36,948 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4d72531c7/322caf3c6e7d4878b5ac66f6ba510407 [2024-10-11 01:34:36,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 01:34:36,951 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 01:34:36,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 01:34:36,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 01:34:36,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 01:34:36,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:34:36" (1/1) ... [2024-10-11 01:34:36,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e4de55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:36, skipping insertion in model container [2024-10-11 01:34:36,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:34:36" (1/1) ... [2024-10-11 01:34:36,992 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 01:34:37,268 WARN L248 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_double_unlock.i[25842,25855] [2024-10-11 01:34:37,276 WARN L248 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_double_unlock.i[25967,25980] [2024-10-11 01:34:37,277 WARN L248 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_double_unlock.i[26082,26095] [2024-10-11 01:34:37,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 01:34:37,286 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 01:34:37,333 WARN L248 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_double_unlock.i[25842,25855] [2024-10-11 01:34:37,334 WARN L248 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_double_unlock.i[25967,25980] [2024-10-11 01:34:37,334 WARN L248 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_double_unlock.i[26082,26095] [2024-10-11 01:34:37,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 01:34:37,371 INFO L204 MainTranslator]: Completed translation [2024-10-11 01:34:37,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37 WrapperNode [2024-10-11 01:34:37,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 01:34:37,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 01:34:37,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 01:34:37,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 01:34:37,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,423 INFO L138 Inliner]: procedures = 139, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 140 [2024-10-11 01:34:37,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 01:34:37,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 01:34:37,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 01:34:37,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 01:34:37,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,436 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,461 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]. [2024-10-11 01:34:37,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,487 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 01:34:37,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 01:34:37,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 01:34:37,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 01:34:37,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (1/1) ... [2024-10-11 01:34:37,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 01:34:37,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 01:34:37,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 01:34:37,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 01:34:37,577 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2024-10-11 01:34:37,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2024-10-11 01:34:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-10-11 01:34:37,578 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-10-11 01:34:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 01:34:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-10-11 01:34:37,578 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-10-11 01:34:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 01:34:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 01:34:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 01:34:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2024-10-11 01:34:37,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2024-10-11 01:34:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 01:34:37,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 01:34:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 01:34:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 01:34:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 01:34:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 01:34:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 01:34:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2024-10-11 01:34:37,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2024-10-11 01:34:37,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 01:34:37,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 01:34:37,721 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 01:34:37,723 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 01:34:37,906 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-10-11 01:34:37,906 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 01:34:37,962 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 01:34:37,962 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 01:34:37,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:34:37 BoogieIcfgContainer [2024-10-11 01:34:37,963 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 01:34:37,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 01:34:37,966 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 01:34:37,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 01:34:37,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 01:34:36" (1/3) ... [2024-10-11 01:34:37,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4785d900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:34:37, skipping insertion in model container [2024-10-11 01:34:37,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:34:37" (2/3) ... [2024-10-11 01:34:37,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4785d900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:34:37, skipping insertion in model container [2024-10-11 01:34:37,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:34:37" (3/3) ... [2024-10-11 01:34:37,971 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_double_unlock.i [2024-10-11 01:34:37,984 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 01:34:37,984 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 01:34:38,035 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 01:34:38,041 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;@5fbd805b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 01:34:38,042 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-11 01:34:38,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 35 states have (on average 1.4) internal successors, (49), 38 states have internal predecessors, (49), 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) [2024-10-11 01:34:38,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 01:34:38,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 01:34:38,052 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 01:34:38,052 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 01:34:38,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 01:34:38,057 INFO L85 PathProgramCache]: Analyzing trace with hash 771595544, now seen corresponding path program 1 times [2024-10-11 01:34:38,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 01:34:38,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942265624] [2024-10-11 01:34:38,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 01:34:38,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 01:34:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:38,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 01:34:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:38,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 01:34:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:38,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 01:34:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 01:34:38,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 01:34:38,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942265624] [2024-10-11 01:34:38,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942265624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 01:34:38,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 01:34:38,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 01:34:38,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602691735] [2024-10-11 01:34:38,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 01:34:38,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 01:34:38,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 01:34:38,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 01:34:38,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 01:34:38,339 INFO L87 Difference]: Start difference. First operand has 55 states, 35 states have (on average 1.4) internal successors, (49), 38 states have internal predecessors, (49), 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 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 01:34:38,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 01:34:38,481 INFO L93 Difference]: Finished difference Result 115 states and 161 transitions. [2024-10-11 01:34:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 01:34:38,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2024-10-11 01:34:38,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 01:34:38,490 INFO L225 Difference]: With dead ends: 115 [2024-10-11 01:34:38,491 INFO L226 Difference]: Without dead ends: 60 [2024-10-11 01:34:38,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 01:34:38,498 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 29 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 01:34:38,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 43 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 01:34:38,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-11 01:34:38,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2024-10-11 01:34:38,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 36 states have internal predecessors, (41), 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) [2024-10-11 01:34:38,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2024-10-11 01:34:38,537 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 24 [2024-10-11 01:34:38,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 01:34:38,538 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2024-10-11 01:34:38,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 01:34:38,539 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2024-10-11 01:34:38,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 01:34:38,542 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 01:34:38,542 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 01:34:38,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 01:34:38,543 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 01:34:38,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 01:34:38,543 INFO L85 PathProgramCache]: Analyzing trace with hash -85566308, now seen corresponding path program 1 times [2024-10-11 01:34:38,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 01:34:38,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793293168] [2024-10-11 01:34:38,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 01:34:38,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 01:34:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:38,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 01:34:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:38,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 01:34:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:38,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 01:34:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 01:34:38,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 01:34:38,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793293168] [2024-10-11 01:34:38,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793293168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 01:34:38,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 01:34:38,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 01:34:38,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660834196] [2024-10-11 01:34:38,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 01:34:38,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 01:34:38,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 01:34:38,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 01:34:38,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 01:34:38,729 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-10-11 01:34:38,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 01:34:38,900 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2024-10-11 01:34:38,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 01:34:38,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 24 [2024-10-11 01:34:38,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 01:34:38,903 INFO L225 Difference]: With dead ends: 66 [2024-10-11 01:34:38,904 INFO L226 Difference]: Without dead ends: 64 [2024-10-11 01:34:38,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 01:34:38,905 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 32 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 01:34:38,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 94 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 01:34:38,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-11 01:34:38,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2024-10-11 01:34:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 39 states have internal predecessors, (44), 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) [2024-10-11 01:34:38,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2024-10-11 01:34:38,936 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 24 [2024-10-11 01:34:38,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 01:34:38,937 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2024-10-11 01:34:38,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-10-11 01:34:38,938 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2024-10-11 01:34:38,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 01:34:38,939 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 01:34:38,939 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 01:34:38,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 01:34:38,940 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 01:34:38,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 01:34:38,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1489036997, now seen corresponding path program 1 times [2024-10-11 01:34:38,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 01:34:38,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403231400] [2024-10-11 01:34:38,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 01:34:38,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 01:34:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:39,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 01:34:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:39,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 01:34:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:39,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 01:34:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:39,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 01:34:39,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 01:34:39,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403231400] [2024-10-11 01:34:39,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403231400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 01:34:39,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 01:34:39,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 01:34:39,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349918661] [2024-10-11 01:34:39,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 01:34:39,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 01:34:39,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 01:34:39,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 01:34:39,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 01:34:39,249 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 01:34:39,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 01:34:39,652 INFO L93 Difference]: Finished difference Result 172 states and 225 transitions. [2024-10-11 01:34:39,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 01:34:39,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (4), 3 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 24 [2024-10-11 01:34:39,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 01:34:39,657 INFO L225 Difference]: With dead ends: 172 [2024-10-11 01:34:39,657 INFO L226 Difference]: Without dead ends: 121 [2024-10-11 01:34:39,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 01:34:39,659 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 109 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 01:34:39,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 103 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 01:34:39,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-11 01:34:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 102. [2024-10-11 01:34:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 74 states have internal predecessors, (84), 18 states have call successors, (18), 9 states have call predecessors, (18), 13 states have return successors, (29), 18 states have call predecessors, (29), 18 states have call successors, (29) [2024-10-11 01:34:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 131 transitions. [2024-10-11 01:34:39,680 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 131 transitions. Word has length 24 [2024-10-11 01:34:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 01:34:39,680 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 131 transitions. [2024-10-11 01:34:39,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 01:34:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 131 transitions. [2024-10-11 01:34:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 01:34:39,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 01:34:39,683 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 01:34:39,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 01:34:39,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 01:34:39,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 01:34:39,684 INFO L85 PathProgramCache]: Analyzing trace with hash -97933331, now seen corresponding path program 1 times [2024-10-11 01:34:39,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 01:34:39,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428291] [2024-10-11 01:34:39,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 01:34:39,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 01:34:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:41,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 01:34:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:41,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 01:34:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:41,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 01:34:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:41,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 01:34:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:41,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 01:34:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:41,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 01:34:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:41,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 01:34:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:42,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 01:34:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 01:34:42,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 01:34:42,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428291] [2024-10-11 01:34:42,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428291] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 01:34:42,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296023665] [2024-10-11 01:34:42,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 01:34:42,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 01:34:42,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 01:34:42,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 01:34:42,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 01:34:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:34:42,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 144 conjuncts are in the unsatisfiable core [2024-10-11 01:34:42,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 01:34:42,680 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-11 01:34:42,681 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 [2024-10-11 01:34:42,947 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-10-11 01:34:42,947 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 [2024-10-11 01:34:43,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:43,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:43,773 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:43,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 24 treesize of output 16 [2024-10-11 01:34:43,789 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 15 treesize of output 7 [2024-10-11 01:34:43,810 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 0 case distinctions, treesize of input 26 treesize of output 7 [2024-10-11 01:34:43,833 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 19 treesize of output 7 [2024-10-11 01:34:43,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:43,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:43,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:43,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 8 [2024-10-11 01:34:43,861 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 [2024-10-11 01:34:43,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:43,893 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:43,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 8 [2024-10-11 01:34:43,951 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 [2024-10-11 01:34:43,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:43,971 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:43,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 8 [2024-10-11 01:34:43,979 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 [2024-10-11 01:34:43,995 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:43,996 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 18 [2024-10-11 01:34:44,030 INFO L349 Elim1Store]: treesize reduction 13, result has 50.0 percent of original size [2024-10-11 01:34:44,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 21 [2024-10-11 01:34:44,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,050 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 13 treesize of output 17 [2024-10-11 01:34:44,067 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,068 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 18 [2024-10-11 01:34:44,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,082 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 13 treesize of output 17 [2024-10-11 01:34:44,114 INFO L349 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2024-10-11 01:34:44,114 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 24 treesize of output 17 [2024-10-11 01:34:44,127 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,128 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 16 [2024-10-11 01:34:44,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,139 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 11 treesize of output 15 [2024-10-11 01:34:44,166 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-11 01:34:44,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-10-11 01:34:44,181 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,182 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 16 [2024-10-11 01:34:44,223 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 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 01:34:44,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 7 [2024-10-11 01:34:44,292 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 19 treesize of output 7 [2024-10-11 01:34:44,329 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 8 [2024-10-11 01:34:44,381 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 [2024-10-11 01:34:44,387 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 8 [2024-10-11 01:34:44,396 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 [2024-10-11 01:34:44,411 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 8 [2024-10-11 01:34:44,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,421 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 8 treesize of output 1 [2024-10-11 01:34:44,442 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,443 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 18 [2024-10-11 01:34:44,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,474 INFO L349 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2024-10-11 01:34:44,474 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 24 treesize of output 1 [2024-10-11 01:34:44,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,487 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 13 treesize of output 1 [2024-10-11 01:34:44,500 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,500 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 18 [2024-10-11 01:34:44,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-10-11 01:34:44,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,548 INFO L349 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2024-10-11 01:34:44,548 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 1 case distinctions, treesize of input 24 treesize of output 1 [2024-10-11 01:34:44,553 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,553 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 16 [2024-10-11 01:34:44,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,574 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 11 treesize of output 1 [2024-10-11 01:34:44,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,598 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-10-11 01:34:44,598 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 22 treesize of output 1 [2024-10-11 01:34:44,610 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,610 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:34:44,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 16 [2024-10-11 01:34:44,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,649 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 15 treesize of output 1 [2024-10-11 01:34:44,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:34:44,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2024-10-11 01:34:44,680 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 19 treesize of output 7 [2024-10-11 01:35:19,800 WARN L286 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 339 DAG size of output: 114 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-10-11 01:35:19,800 INFO L349 Elim1Store]: treesize reduction 2244, result has 13.1 percent of original size [2024-10-11 01:35:19,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 18 new quantified variables, introduced 56 case distinctions, treesize of input 669 treesize of output 1490 [2024-10-11 01:35:20,949 INFO L224 Elim1Store]: Index analysis took 921 ms [2024-10-11 01:35:25,859 INFO L349 Elim1Store]: treesize reduction 16, result has 92.9 percent of original size [2024-10-11 01:35:25,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 144 treesize of output 316 [2024-10-11 01:35:26,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,482 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:35:26,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,660 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:35:26,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:35:26,918 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:35:27,087 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:35:27,091 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:35:27,112 INFO L224 Elim1Store]: Index analysis took 740 ms [2024-10-11 01:35:34,276 WARN L286 SmtUtils]: Spent 7.12s on a formula simplification. DAG size of input: 215 DAG size of output: 23 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-10-11 01:35:34,276 INFO L349 Elim1Store]: treesize reduction 1936, result has 1.4 percent of original size [2024-10-11 01:35:34,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 24 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 11 new quantified variables, introduced 58 case distinctions, treesize of input 1128 treesize of output 7899 [2024-10-11 01:36:06,050 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:36:06,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:36:06,053 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:36:06,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 01:36:06,054 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:36:06,060 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 01:36:06,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 229 [2024-10-11 01:36:06,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 79 [2024-10-11 01:36:06,089 INFO L349 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2024-10-11 01:36:06,089 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36