./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.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/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-dev-4a390ef-m [2024-10-23 23:36:24,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 23:36:24,784 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 23:36:24,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 23:36:24,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 23:36:24,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 23:36:24,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 23:36:24,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 23:36:24,815 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 23:36:24,816 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 23:36:24,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 23:36:24,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 23:36:24,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 23:36:24,817 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 23:36:24,817 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 23:36:24,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 23:36:24,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 23:36:24,819 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 23:36:24,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 23:36:24,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 23:36:24,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 23:36:24,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 23:36:24,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 23:36:24,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 23:36:24,823 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 23:36:24,823 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 23:36:24,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 23:36:24,823 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 23:36:24,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 23:36:24,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 23:36:24,824 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 23:36:24,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 23:36:24,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 23:36:24,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 23:36:24,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 23:36:24,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 23:36:24,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 23:36:24,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 23:36:24,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 23:36:24,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 23:36:24,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 23:36:24,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 23:36:24,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 [2024-10-23 23:36:24,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 23:36:25,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 23:36:25,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 23:36:25,004 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 23:36:25,005 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 23:36:25,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i [2024-10-23 23:36:26,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 23:36:26,662 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 23:36:26,663 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i [2024-10-23 23:36:26,677 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdce1350a/5bccb7c55ff744fdb46e99b7c26f1b94/FLAG17e84bac1 [2024-10-23 23:36:26,689 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdce1350a/5bccb7c55ff744fdb46e99b7c26f1b94 [2024-10-23 23:36:26,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 23:36:26,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 23:36:26,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 23:36:26,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 23:36:26,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 23:36:26,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:36:26" (1/1) ... [2024-10-23 23:36:26,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41cd9746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:26, skipping insertion in model container [2024-10-23 23:36:26,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:36:26" (1/1) ... [2024-10-23 23:36:26,759 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 23:36:27,023 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.i[25842,25855] [2024-10-23 23:36:27,030 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.i[25967,25980] [2024-10-23 23:36:27,034 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.i[26082,26095] [2024-10-23 23:36:27,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 23:36:27,045 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 23:36:27,099 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.i[25842,25855] [2024-10-23 23:36:27,104 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.i[25967,25980] [2024-10-23 23:36:27,105 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.i[26082,26095] [2024-10-23 23:36:27,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 23:36:27,143 INFO L204 MainTranslator]: Completed translation [2024-10-23 23:36:27,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27 WrapperNode [2024-10-23 23:36:27,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 23:36:27,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 23:36:27,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 23:36:27,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 23:36:27,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,190 INFO L138 Inliner]: procedures = 139, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 140 [2024-10-23 23:36:27,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 23:36:27,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 23:36:27,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 23:36:27,195 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 23:36:27,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,243 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]. [2024-10-23 23:36:27,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 23:36:27,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 23:36:27,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 23:36:27,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 23:36:27,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (1/1) ... [2024-10-23 23:36:27,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 23:36:27,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:36:27,288 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) [2024-10-23 23:36:27,301 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 [2024-10-23 23:36:27,341 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2024-10-23 23:36:27,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2024-10-23 23:36:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-10-23 23:36:27,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-10-23 23:36:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-23 23:36:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-10-23 23:36:27,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-10-23 23:36:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 23:36:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-23 23:36:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-23 23:36:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2024-10-23 23:36:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2024-10-23 23:36:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-23 23:36:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-23 23:36:27,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 23:36:27,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-23 23:36:27,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-23 23:36:27,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 23:36:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-23 23:36:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2024-10-23 23:36:27,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2024-10-23 23:36:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 23:36:27,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 23:36:27,458 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 23:36:27,460 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 23:36:27,664 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-10-23 23:36:27,665 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 23:36:27,711 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 23:36:27,711 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-23 23:36:27,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:36:27 BoogieIcfgContainer [2024-10-23 23:36:27,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 23:36:27,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 23:36:27,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 23:36:27,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 23:36:27,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:36:26" (1/3) ... [2024-10-23 23:36:27,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6729dcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:36:27, skipping insertion in model container [2024-10-23 23:36:27,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:36:27" (2/3) ... [2024-10-23 23:36:27,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6729dcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:36:27, skipping insertion in model container [2024-10-23 23:36:27,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:36:27" (3/3) ... [2024-10-23 23:36:27,718 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex.i [2024-10-23 23:36:27,732 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 23:36:27,733 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-23 23:36:27,779 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 23:36:27,785 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;@5fcd4914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 23:36:27,785 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-23 23:36:27,789 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) [2024-10-23 23:36:27,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-23 23:36:27,795 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:36:27,796 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] [2024-10-23 23:36:27,796 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 23:36:27,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:36:27,802 INFO L85 PathProgramCache]: Analyzing trace with hash 771595544, now seen corresponding path program 1 times [2024-10-23 23:36:27,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:36:27,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482309430] [2024-10-23 23:36:27,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:36:27,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:36:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-23 23:36:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-23 23:36:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-23 23:36:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-23 23:36:28,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:36:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482309430] [2024-10-23 23:36:28,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482309430] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:36:28,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:36:28,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 23:36:28,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076225971] [2024-10-23 23:36:28,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:36:28,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 23:36:28,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:36:28,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 23:36:28,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 23:36:28,133 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) [2024-10-23 23:36:28,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:36:28,231 INFO L93 Difference]: Finished difference Result 115 states and 161 transitions. [2024-10-23 23:36:28,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 23:36:28,234 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 [2024-10-23 23:36:28,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:36:28,239 INFO L225 Difference]: With dead ends: 115 [2024-10-23 23:36:28,240 INFO L226 Difference]: Without dead ends: 60 [2024-10-23 23:36:28,242 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 [2024-10-23 23:36:28,244 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 [2024-10-23 23:36:28,245 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] [2024-10-23 23:36:28,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-23 23:36:28,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2024-10-23 23:36:28,274 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) [2024-10-23 23:36:28,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2024-10-23 23:36:28,281 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 24 [2024-10-23 23:36:28,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:36:28,282 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2024-10-23 23:36:28,283 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) [2024-10-23 23:36:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2024-10-23 23:36:28,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-23 23:36:28,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:36:28,287 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] [2024-10-23 23:36:28,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 23:36:28,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 23:36:28,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:36:28,287 INFO L85 PathProgramCache]: Analyzing trace with hash -85566308, now seen corresponding path program 1 times [2024-10-23 23:36:28,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:36:28,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206123895] [2024-10-23 23:36:28,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:36:28,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:36:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-23 23:36:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-23 23:36:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-23 23:36:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-23 23:36:28,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:36:28,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206123895] [2024-10-23 23:36:28,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206123895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:36:28,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:36:28,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-23 23:36:28,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610498330] [2024-10-23 23:36:28,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:36:28,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-23 23:36:28,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:36:28,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-23 23:36:28,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-23 23:36:28,515 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) [2024-10-23 23:36:28,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:36:28,674 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2024-10-23 23:36:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-23 23:36:28,675 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 [2024-10-23 23:36:28,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:36:28,676 INFO L225 Difference]: With dead ends: 66 [2024-10-23 23:36:28,676 INFO L226 Difference]: Without dead ends: 64 [2024-10-23 23:36:28,676 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 [2024-10-23 23:36:28,678 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 [2024-10-23 23:36:28,679 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] [2024-10-23 23:36:28,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-23 23:36:28,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2024-10-23 23:36:28,689 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) [2024-10-23 23:36:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2024-10-23 23:36:28,690 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 24 [2024-10-23 23:36:28,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:36:28,690 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2024-10-23 23:36:28,691 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) [2024-10-23 23:36:28,691 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2024-10-23 23:36:28,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-23 23:36:28,691 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:36:28,691 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] [2024-10-23 23:36:28,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 23:36:28,692 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 23:36:28,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:36:28,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1489036997, now seen corresponding path program 1 times [2024-10-23 23:36:28,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:36:28,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092116069] [2024-10-23 23:36:28,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:36:28,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:36:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-23 23:36:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-23 23:36:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:28,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-23 23:36:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:29,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-23 23:36:29,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:36:29,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092116069] [2024-10-23 23:36:29,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092116069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:36:29,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:36:29,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-23 23:36:29,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291317015] [2024-10-23 23:36:29,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:36:29,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-23 23:36:29,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:36:29,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-23 23:36:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-23 23:36:29,017 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) [2024-10-23 23:36:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:36:29,373 INFO L93 Difference]: Finished difference Result 172 states and 225 transitions. [2024-10-23 23:36:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-23 23:36:29,373 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 [2024-10-23 23:36:29,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:36:29,375 INFO L225 Difference]: With dead ends: 172 [2024-10-23 23:36:29,375 INFO L226 Difference]: Without dead ends: 121 [2024-10-23 23:36:29,376 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 [2024-10-23 23:36:29,377 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, 0.2s IncrementalHoareTripleChecker+Time [2024-10-23 23:36:29,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 103 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-23 23:36:29,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-23 23:36:29,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 102. [2024-10-23 23:36:29,398 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) [2024-10-23 23:36:29,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 131 transitions. [2024-10-23 23:36:29,400 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 131 transitions. Word has length 24 [2024-10-23 23:36:29,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:36:29,400 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 131 transitions. [2024-10-23 23:36:29,400 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) [2024-10-23 23:36:29,400 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 131 transitions. [2024-10-23 23:36:29,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-23 23:36:29,401 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:36:29,401 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] [2024-10-23 23:36:29,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 23:36:29,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 23:36:29,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:36:29,402 INFO L85 PathProgramCache]: Analyzing trace with hash -97933331, now seen corresponding path program 1 times [2024-10-23 23:36:29,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:36:29,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844377092] [2024-10-23 23:36:29,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:36:29,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:36:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:31,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-23 23:36:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:31,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-23 23:36:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:31,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-23 23:36:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:32,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-23 23:36:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:32,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-23 23:36:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:32,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-23 23:36:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:32,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-23 23:36:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:32,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-23 23:36:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-23 23:36:32,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:36:32,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844377092] [2024-10-23 23:36:32,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844377092] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 23:36:32,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006236070] [2024-10-23 23:36:32,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:36:32,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:36:32,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:36:32,569 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) [2024-10-23 23:36:32,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 23:36:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:36:32,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 144 conjuncts are in the unsatisfiable core [2024-10-23 23:36:32,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 23:36:33,041 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-23 23:36:33,042 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 [2024-10-23 23:36:33,463 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-10-23 23:36:33,463 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 [2024-10-23 23:36:34,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,283 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,286 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 [2024-10-23 23:36:34,297 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 [2024-10-23 23:36:34,314 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 [2024-10-23 23:36:34,333 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 [2024-10-23 23:36:34,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,355 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 [2024-10-23 23:36:34,359 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 [2024-10-23 23:36:34,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,384 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,388 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 [2024-10-23 23:36:34,440 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 [2024-10-23 23:36:34,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,449 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,452 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 [2024-10-23 23:36:34,456 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 [2024-10-23 23:36:34,473 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,473 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,478 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 [2024-10-23 23:36:34,508 INFO L349 Elim1Store]: treesize reduction 13, result has 50.0 percent of original size [2024-10-23 23:36:34,508 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 [2024-10-23 23:36:34,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,523 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 [2024-10-23 23:36:34,539 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,540 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,542 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 [2024-10-23 23:36:34,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,552 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 [2024-10-23 23:36:34,585 INFO L349 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2024-10-23 23:36:34,586 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 [2024-10-23 23:36:34,599 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,600 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,603 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 [2024-10-23 23:36:34,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,611 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 [2024-10-23 23:36:34,636 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-23 23:36:34,637 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 [2024-10-23 23:36:34,650 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,651 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,658 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 [2024-10-23 23:36:34,691 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 [2024-10-23 23:36:34,707 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 [2024-10-23 23:36:34,759 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 [2024-10-23 23:36:34,824 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,828 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 [2024-10-23 23:36:34,868 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 [2024-10-23 23:36:34,874 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,878 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 [2024-10-23 23:36:34,882 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 [2024-10-23 23:36:34,899 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,905 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 [2024-10-23 23:36:34,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,913 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 [2024-10-23 23:36:34,935 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,936 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,940 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 [2024-10-23 23:36:34,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,967 INFO L349 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2024-10-23 23:36:34,967 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 [2024-10-23 23:36:34,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,978 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 [2024-10-23 23:36:34,987 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,988 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:34,991 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 [2024-10-23 23:36:34,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:34,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:35,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:35,005 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 [2024-10-23 23:36:35,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:35,039 INFO L349 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2024-10-23 23:36:35,040 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 [2024-10-23 23:36:35,044 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:35,045 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:35,049 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 [2024-10-23 23:36:35,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:35,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:35,060 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 [2024-10-23 23:36:35,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:35,080 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-10-23 23:36:35,080 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 [2024-10-23 23:36:35,086 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:35,087 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:36:35,091 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 [2024-10-23 23:36:35,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:35,121 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 [2024-10-23 23:36:35,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:36:35,136 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 [2024-10-23 23:36:35,149 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 [2024-10-23 23:37:12,082 WARN L286 SmtUtils]: Spent 9.59s 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) [2024-10-23 23:37:12,083 INFO L349 Elim1Store]: treesize reduction 2244, result has 13.1 percent of original size [2024-10-23 23:37:12,084 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 [2024-10-23 23:37:13,114 INFO L224 Elim1Store]: Index analysis took 784 ms [2024-10-23 23:37:17,440 INFO L349 Elim1Store]: treesize reduction 16, result has 92.9 percent of original size [2024-10-23 23:37:17,441 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 [2024-10-23 23:37:17,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:17,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:17,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,114 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:37:18,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,306 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:37:18,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:18,571 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:37:18,795 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:37:18,796 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:37:18,840 INFO L224 Elim1Store]: Index analysis took 864 ms [2024-10-23 23:37:24,970 WARN L286 SmtUtils]: Spent 6.08s 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) [2024-10-23 23:37:24,970 INFO L349 Elim1Store]: treesize reduction 1936, result has 1.4 percent of original size [2024-10-23 23:37:24,971 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 [2024-10-23 23:37:58,748 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:37:58,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:58,753 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:37:58,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-23 23:37:58,754 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:37:58,760 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-23 23:37:58,761 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 [2024-10-23 23:37:58,772 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 [2024-10-23 23:37:58,798 INFO L349 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2024-10-23 23:37:58,798 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