/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-sets/test_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:52:54,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:52:54,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:52:54,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:52:54,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:52:54,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:52:54,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:52:54,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:52:54,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:52:54,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:52:54,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:52:54,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:52:54,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:52:54,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:52:54,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:52:54,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:52:54,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:52:54,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:52:54,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:52:54,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:52:54,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:52:54,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:52:54,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:52:54,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:52:54,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 04:52:54,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:52:54,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:52:54,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:52:54,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:52:54,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:52:54,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:52:54,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:52:54,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:52:54,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:52:54,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:52:54,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:52:54,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 04:52:54,332 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:52:54,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:52:54,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:52:54,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:52:54,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:52:54,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:52:54,333 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:52:54,333 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:52:54,334 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:52:54,334 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:52:54,334 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:52:54,334 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:52:54,334 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:52:54,335 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:52:54,335 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:52:54,335 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:52:54,335 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:52:54,335 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:52:54,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:52:54,336 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:52:54,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:52:54,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:52:54,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:52:54,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:52:54,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:52:54,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:52:54,337 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:52:54,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:52:54,337 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:52:54,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:52:54,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:52:54,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:52:54,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:52:54,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:52:54,338 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:52:54,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:52:54,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:52:54,338 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:52:54,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:52:54,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:52:54,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:52:54,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:52:54,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:52:54,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:52:54,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:52:54,523 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:52:54,524 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:52:54,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_mutex.i [2023-04-01 04:52:55,453 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:52:55,670 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:52:55,670 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex.i [2023-04-01 04:52:55,690 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd241dd21/457de844de504253a46d7f3bfec4a48e/FLAG97aeb2276 [2023-04-01 04:52:55,704 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd241dd21/457de844de504253a46d7f3bfec4a48e [2023-04-01 04:52:55,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:52:55,707 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:52:55,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:52:55,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:52:55,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:52:55,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:52:55" (1/1) ... [2023-04-01 04:52:55,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a99111a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:55, skipping insertion in model container [2023-04-01 04:52:55,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:52:55" (1/1) ... [2023-04-01 04:52:55,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:52:55,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:52:56,025 WARN L247 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] [2023-04-01 04:52:56,030 WARN L247 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] [2023-04-01 04:52:56,032 WARN L247 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] [2023-04-01 04:52:56,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:52:56,042 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:52:56,074 WARN L247 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] [2023-04-01 04:52:56,075 WARN L247 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] [2023-04-01 04:52:56,075 WARN L247 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] [2023-04-01 04:52:56,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:52:56,095 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:52:56,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56 WrapperNode [2023-04-01 04:52:56,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:52:56,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:52:56,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:52:56,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:52:56,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56" (1/1) ... [2023-04-01 04:52:56,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56" (1/1) ... [2023-04-01 04:52:56,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56" (1/1) ... [2023-04-01 04:52:56,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56" (1/1) ... [2023-04-01 04:52:56,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56" (1/1) ... [2023-04-01 04:52:56,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56" (1/1) ... [2023-04-01 04:52:56,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56" (1/1) ... [2023-04-01 04:52:56,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56" (1/1) ... [2023-04-01 04:52:56,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:52:56,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:52:56,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:52:56,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:52:56,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56" (1/1) ... [2023-04-01 04:52:56,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:52:56,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:52:56,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 04:52:56,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 04:52:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:52:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:52:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-04-01 04:52:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-04-01 04:52:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:52:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 04:52:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 04:52:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-04-01 04:52:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 04:52:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-01 04:52:56,193 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-01 04:52:56,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 04:52:56,193 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-04-01 04:52:56,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:52:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-04-01 04:52:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-04-01 04:52:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-04-01 04:52:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-04-01 04:52:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-04-01 04:52:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-04-01 04:52:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-04-01 04:52:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-04-01 04:52:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-04-01 04:52:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-04-01 04:52:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-04-01 04:52:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-04-01 04:52:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-04-01 04:52:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-04-01 04:52:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 04:52:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-04-01 04:52:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:52:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:52:56,381 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:52:56,383 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:52:56,619 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:52:56,662 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:52:56,662 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-04-01 04:52:56,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:52:56 BoogieIcfgContainer [2023-04-01 04:52:56,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:52:56,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:52:56,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:52:56,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:52:56,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:52:55" (1/3) ... [2023-04-01 04:52:56,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d54d12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:52:56, skipping insertion in model container [2023-04-01 04:52:56,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:52:56" (2/3) ... [2023-04-01 04:52:56,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d54d12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:52:56, skipping insertion in model container [2023-04-01 04:52:56,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:52:56" (3/3) ... [2023-04-01 04:52:56,670 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex.i [2023-04-01 04:52:56,687 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:52:56,688 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-04-01 04:52:56,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:52:56,737 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@24df48a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:52:56,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-04-01 04:52:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 52 states have internal predecessors, (59), 24 states have call successors, (24), 18 states have call predecessors, (24), 18 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-01 04:52:56,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-04-01 04:52:56,746 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:56,746 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 04:52:56,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:56,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:56,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1953809322, now seen corresponding path program 1 times [2023-04-01 04:52:56,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:56,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825075430] [2023-04-01 04:52:56,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:56,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-01 04:52:57,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:57,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825075430] [2023-04-01 04:52:57,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825075430] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:52:57,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:52:57,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 04:52:57,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483022743] [2023-04-01 04:52:57,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:52:57,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 04:52:57,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:57,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 04:52:57,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 04:52:57,083 INFO L87 Difference]: Start difference. First operand has 95 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 52 states have internal predecessors, (59), 24 states have call successors, (24), 18 states have call predecessors, (24), 18 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-01 04:52:57,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:57,177 INFO L93 Difference]: Finished difference Result 177 states and 208 transitions. [2023-04-01 04:52:57,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 04:52:57,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 34 [2023-04-01 04:52:57,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:57,187 INFO L225 Difference]: With dead ends: 177 [2023-04-01 04:52:57,187 INFO L226 Difference]: Without dead ends: 89 [2023-04-01 04:52:57,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 04:52:57,194 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 04:52:57,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 259 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 04:52:57,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-04-01 04:52:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-04-01 04:52:57,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 49 states have internal predecessors, (53), 24 states have call successors, (24), 18 states have call predecessors, (24), 16 states have return successors, (24), 22 states have call predecessors, (24), 21 states have call successors, (24) [2023-04-01 04:52:57,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2023-04-01 04:52:57,238 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 34 [2023-04-01 04:52:57,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:57,239 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2023-04-01 04:52:57,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-01 04:52:57,239 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2023-04-01 04:52:57,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-04-01 04:52:57,240 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:57,240 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 04:52:57,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:52:57,241 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:57,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:57,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1192340230, now seen corresponding path program 1 times [2023-04-01 04:52:57,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:57,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978789618] [2023-04-01 04:52:57,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:57,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:57,558 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-01 04:52:57,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:57,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978789618] [2023-04-01 04:52:57,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978789618] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:52:57,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:52:57,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 04:52:57,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454542360] [2023-04-01 04:52:57,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:52:57,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 04:52:57,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:57,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 04:52:57,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 04:52:57,561 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-01 04:52:57,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:57,864 INFO L93 Difference]: Finished difference Result 238 states and 292 transitions. [2023-04-01 04:52:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 04:52:57,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2023-04-01 04:52:57,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:57,867 INFO L225 Difference]: With dead ends: 238 [2023-04-01 04:52:57,867 INFO L226 Difference]: Without dead ends: 162 [2023-04-01 04:52:57,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-01 04:52:57,868 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 86 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 04:52:57,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 293 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 04:52:57,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-04-01 04:52:57,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 132. [2023-04-01 04:52:57,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 76 states have internal predecessors, (85), 34 states have call successors, (34), 25 states have call predecessors, (34), 24 states have return successors, (41), 31 states have call predecessors, (41), 31 states have call successors, (41) [2023-04-01 04:52:57,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 160 transitions. [2023-04-01 04:52:57,884 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 160 transitions. Word has length 35 [2023-04-01 04:52:57,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:57,884 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 160 transitions. [2023-04-01 04:52:57,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-01 04:52:57,884 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 160 transitions. [2023-04-01 04:52:57,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-01 04:52:57,886 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:57,886 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:52:57,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:52:57,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:57,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:57,887 INFO L85 PathProgramCache]: Analyzing trace with hash -893445544, now seen corresponding path program 1 times [2023-04-01 04:52:57,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:57,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718641302] [2023-04-01 04:52:57,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:57,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:57,957 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-04-01 04:52:57,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:57,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718641302] [2023-04-01 04:52:57,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718641302] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:52:57,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330970907] [2023-04-01 04:52:57,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:57,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:52:57,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:52:57,961 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) [2023-04-01 04:52:57,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 04:52:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:58,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-01 04:52:58,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:52:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-01 04:52:58,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 04:52:58,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330970907] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:52:58,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 04:52:58,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2023-04-01 04:52:58,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312949115] [2023-04-01 04:52:58,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:52:58,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 04:52:58,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 04:52:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 04:52:58,227 INFO L87 Difference]: Start difference. First operand 132 states and 160 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-01 04:52:58,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:52:58,309 INFO L93 Difference]: Finished difference Result 236 states and 288 transitions. [2023-04-01 04:52:58,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 04:52:58,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 78 [2023-04-01 04:52:58,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:52:58,311 INFO L225 Difference]: With dead ends: 236 [2023-04-01 04:52:58,311 INFO L226 Difference]: Without dead ends: 138 [2023-04-01 04:52:58,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 04:52:58,312 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 04:52:58,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 238 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 04:52:58,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-04-01 04:52:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-04-01 04:52:58,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 80 states have internal predecessors, (90), 34 states have call successors, (34), 25 states have call predecessors, (34), 25 states have return successors, (42), 33 states have call predecessors, (42), 31 states have call successors, (42) [2023-04-01 04:52:58,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 166 transitions. [2023-04-01 04:52:58,326 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 166 transitions. Word has length 78 [2023-04-01 04:52:58,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:52:58,327 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 166 transitions. [2023-04-01 04:52:58,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-01 04:52:58,327 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 166 transitions. [2023-04-01 04:52:58,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-04-01 04:52:58,328 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:52:58,329 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:52:58,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 04:52:58,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:52:58,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:52:58,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:52:58,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1202886494, now seen corresponding path program 1 times [2023-04-01 04:52:58,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:52:58,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426771999] [2023-04-01 04:52:58,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:58,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:52:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-01 04:52:58,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:52:58,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426771999] [2023-04-01 04:52:58,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426771999] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:52:58,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245158455] [2023-04-01 04:52:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:52:58,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:52:58,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:52:58,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 04:52:58,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 04:52:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:52:59,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 57 conjunts are in the unsatisfiable core [2023-04-01 04:52:59,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:52:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-01 04:52:59,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 04:52:59,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245158455] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:52:59,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 04:52:59,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 17 [2023-04-01 04:52:59,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117886973] [2023-04-01 04:52:59,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:52:59,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-01 04:52:59,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:52:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-01 04:52:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-04-01 04:52:59,845 INFO L87 Difference]: Start difference. First operand 138 states and 166 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 5 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-04-01 04:53:00,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:53:00,608 INFO L93 Difference]: Finished difference Result 307 states and 371 transitions. [2023-04-01 04:53:00,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-01 04:53:00,609 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 5 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 80 [2023-04-01 04:53:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:53:00,611 INFO L225 Difference]: With dead ends: 307 [2023-04-01 04:53:00,611 INFO L226 Difference]: Without dead ends: 194 [2023-04-01 04:53:00,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2023-04-01 04:53:00,613 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 219 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 04:53:00,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 259 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 04:53:00,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-04-01 04:53:00,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 139. [2023-04-01 04:53:00,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 79 states have (on average 1.1772151898734178) internal successors, (93), 84 states have internal predecessors, (93), 31 states have call successors, (31), 25 states have call predecessors, (31), 26 states have return successors, (39), 29 states have call predecessors, (39), 28 states have call successors, (39) [2023-04-01 04:53:00,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 163 transitions. [2023-04-01 04:53:00,633 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 163 transitions. Word has length 80 [2023-04-01 04:53:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:53:00,633 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 163 transitions. [2023-04-01 04:53:00,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 5 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-04-01 04:53:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 163 transitions. [2023-04-01 04:53:00,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-01 04:53:00,635 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:53:00,635 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:53:00,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 04:53:00,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-04-01 04:53:00,836 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:53:00,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:53:00,836 INFO L85 PathProgramCache]: Analyzing trace with hash 470184712, now seen corresponding path program 1 times [2023-04-01 04:53:00,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:53:00,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136504133] [2023-04-01 04:53:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:53:00,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:53:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:53:03,317 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-04-01 04:53:03,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:53:03,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136504133] [2023-04-01 04:53:03,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136504133] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:53:03,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789762523] [2023-04-01 04:53:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:53:03,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:53:03,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:53:03,320 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 04:53:03,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 04:53:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:53:03,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 179 conjunts are in the unsatisfiable core [2023-04-01 04:53:03,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:53:03,583 INFO L350 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 6 treesize of output 5 [2023-04-01 04:53:03,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-01 04:53:04,088 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-04-01 04:53:04,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-04-01 04:53:04,578 INFO L350 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 11 treesize of output 7 [2023-04-01 04:53:04,856 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2023-04-01 04:53:04,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2023-04-01 04:53:04,866 INFO L350 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 [2023-04-01 04:53:04,877 INFO L350 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 [2023-04-01 04:53:04,899 INFO L350 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 [2023-04-01 04:53:05,321 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:05,332 INFO L321 Elim1Store]: treesize reduction 24, result has 25.0 percent of original size [2023-04-01 04:53:05,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 104 [2023-04-01 04:53:05,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-01 04:53:05,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-01 04:53:05,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-01 04:53:05,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:05,393 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:05,399 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 04:53:05,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 44 [2023-04-01 04:53:05,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-01 04:53:05,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-01 04:53:06,453 INFO L321 Elim1Store]: treesize reduction 182, result has 36.6 percent of original size [2023-04-01 04:53:06,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 562 treesize of output 496 [2023-04-01 04:53:06,593 INFO L321 Elim1Store]: treesize reduction 124, result has 37.1 percent of original size [2023-04-01 04:53:06,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 1209 treesize of output 1075 [2023-04-01 04:53:06,628 INFO L350 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 12 treesize of output 11 [2023-04-01 04:53:06,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-01 04:53:06,852 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:06,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 76 [2023-04-01 04:53:07,036 INFO L321 Elim1Store]: treesize reduction 60, result has 14.3 percent of original size [2023-04-01 04:53:07,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 199 treesize of output 140 [2023-04-01 04:53:07,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-04-01 04:53:07,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2023-04-01 04:53:07,337 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2023-04-01 04:53:07,337 INFO L350 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 282 treesize of output 247 [2023-04-01 04:53:07,619 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2023-04-01 04:53:07,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 895 treesize of output 787 [2023-04-01 04:53:08,065 INFO L321 Elim1Store]: treesize reduction 26, result has 57.4 percent of original size [2023-04-01 04:53:08,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 379 treesize of output 357 [2023-04-01 04:53:08,706 INFO L321 Elim1Store]: treesize reduction 108, result has 28.9 percent of original size [2023-04-01 04:53:08,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 5541 treesize of output 2949 [2023-04-01 04:53:15,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:15,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:15,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 103 [2023-04-01 04:53:15,748 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:15,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 304 treesize of output 262 [2023-04-01 04:53:16,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:16,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:16,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 106 [2023-04-01 04:53:16,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 04:53:16,626 INFO L321 Elim1Store]: treesize reduction 171, result has 41.2 percent of original size [2023-04-01 04:53:16,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 783 treesize of output 772 [2023-04-01 04:53:30,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-04-01 04:53:30,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-01 04:53:30,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-01 04:53:30,422 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:30,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 179 treesize of output 189 [2023-04-01 04:53:30,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-04-01 04:53:30,743 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:30,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 248 treesize of output 258 [2023-04-01 04:53:31,106 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-04-01 04:53:31,123 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-04-01 04:53:31,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-04-01 04:53:31,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-01 04:53:31,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-01 04:53:31,368 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:31,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 270 treesize of output 300 [2023-04-01 04:53:34,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-04-01 04:53:34,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-01 04:53:34,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-04-01 04:53:34,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-04-01 04:53:35,147 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 04:53:35,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 401 treesize of output 459