/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/locks/test_locks_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 01:42:33,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 01:42:33,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 01:42:33,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 01:42:33,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 01:42:33,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 01:42:33,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 01:42:33,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 01:42:33,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 01:42:33,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 01:42:33,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 01:42:33,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 01:42:33,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 01:42:33,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 01:42:33,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 01:42:33,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 01:42:33,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 01:42:33,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 01:42:33,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 01:42:33,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 01:42:33,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 01:42:33,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 01:42:33,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 01:42:33,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 01:42:33,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 01:42:33,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 01:42:33,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 01:42:33,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 01:42:33,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 01:42:33,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 01:42:33,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 01:42:33,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 01:42:33,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 01:42:33,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 01:42:33,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 01:42:33,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 01:42:33,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 01:42:33,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 01:42:33,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 01:42:33,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 01:42:33,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 01:42:33,337 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 01:42:33,403 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 01:42:33,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 01:42:33,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 01:42:33,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 01:42:33,407 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 01:42:33,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 01:42:33,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 01:42:33,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 01:42:33,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 01:42:33,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 01:42:33,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 01:42:33,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 01:42:33,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 01:42:33,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 01:42:33,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 01:42:33,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 01:42:33,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 01:42:33,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:42:33,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 01:42:33,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 01:42:33,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 01:42:33,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 01:42:33,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 01:42:33,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 01:42:33,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 01:42:33,415 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 01:42:33,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 01:42:33,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 01:42:33,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 01:42:33,914 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 01:42:33,915 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 01:42:33,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_15-1.c [2020-12-23 01:42:34,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6ade43cf5/21a2088088c445ce8b153b1f57aff76b/FLAG1e264dda8 [2020-12-23 01:42:34,692 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 01:42:34,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c [2020-12-23 01:42:34,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6ade43cf5/21a2088088c445ce8b153b1f57aff76b/FLAG1e264dda8 [2020-12-23 01:42:35,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6ade43cf5/21a2088088c445ce8b153b1f57aff76b [2020-12-23 01:42:35,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 01:42:35,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 01:42:35,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 01:42:35,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 01:42:35,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 01:42:35,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf838c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35, skipping insertion in model container [2020-12-23 01:42:35,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 01:42:35,106 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~cond~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] left hand side expression in assignment: lhs: VariableLHS[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] left hand side expression in assignment: lhs: VariableLHS[~lk14~0,] left hand side expression in assignment: lhs: VariableLHS[~lk15~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] left hand side expression in assignment: lhs: VariableLHS[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] left hand side expression in assignment: lhs: VariableLHS[~lk14~0,] left hand side expression in assignment: lhs: VariableLHS[~lk15~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] left hand side expression in assignment: lhs: VariableLHS[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] left hand side expression in assignment: lhs: VariableLHS[~lk14~0,] left hand side expression in assignment: lhs: VariableLHS[~lk15~0,] [2020-12-23 01:42:35,336 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2020-12-23 01:42:35,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:42:35,352 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~cond~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] left hand side expression in assignment: lhs: VariableLHS[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] left hand side expression in assignment: lhs: VariableLHS[~lk14~0,] left hand side expression in assignment: lhs: VariableLHS[~lk15~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] left hand side expression in assignment: lhs: VariableLHS[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] left hand side expression in assignment: lhs: VariableLHS[~lk14~0,] left hand side expression in assignment: lhs: VariableLHS[~lk15~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] left hand side expression in assignment: lhs: VariableLHS[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] left hand side expression in assignment: lhs: VariableLHS[~lk14~0,] left hand side expression in assignment: lhs: VariableLHS[~lk15~0,] [2020-12-23 01:42:35,402 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2020-12-23 01:42:35,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:42:35,430 INFO L208 MainTranslator]: Completed translation [2020-12-23 01:42:35,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35 WrapperNode [2020-12-23 01:42:35,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 01:42:35,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 01:42:35,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 01:42:35,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 01:42:35,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 01:42:35,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 01:42:35,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 01:42:35,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 01:42:35,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (1/1) ... [2020-12-23 01:42:35,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 01:42:35,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 01:42:35,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 01:42:35,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 01:42:35,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:42:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 01:42:35,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 01:42:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 01:42:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 01:42:36,526 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 01:42:36,526 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-23 01:42:36,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:42:36 BoogieIcfgContainer [2020-12-23 01:42:36,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 01:42:36,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 01:42:36,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 01:42:36,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 01:42:36,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:42:35" (1/3) ... [2020-12-23 01:42:36,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1884ec0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:42:36, skipping insertion in model container [2020-12-23 01:42:36,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:35" (2/3) ... [2020-12-23 01:42:36,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1884ec0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:42:36, skipping insertion in model container [2020-12-23 01:42:36,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:42:36" (3/3) ... [2020-12-23 01:42:36,538 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2020-12-23 01:42:36,545 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 01:42:36,550 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 01:42:36,568 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 01:42:36,593 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 01:42:36,594 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 01:42:36,594 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 01:42:36,594 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 01:42:36,594 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 01:42:36,594 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 01:42:36,594 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 01:42:36,595 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 01:42:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-23 01:42:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 01:42:36,618 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:42:36,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:42:36,619 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:42:36,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:42:36,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1188553263, now seen corresponding path program 1 times [2020-12-23 01:42:36,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:42:36,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950466176] [2020-12-23 01:42:36,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:42:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:42:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:42:36,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950466176] [2020-12-23 01:42:36,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:42:36,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:42:36,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525874058] [2020-12-23 01:42:36,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:42:36,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:42:37,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:42:37,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:42:37,018 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 3 states. [2020-12-23 01:42:37,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:42:37,092 INFO L93 Difference]: Finished difference Result 160 states and 300 transitions. [2020-12-23 01:42:37,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:42:37,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-23 01:42:37,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:42:37,108 INFO L225 Difference]: With dead ends: 160 [2020-12-23 01:42:37,108 INFO L226 Difference]: Without dead ends: 99 [2020-12-23 01:42:37,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:42:37,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-23 01:42:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2020-12-23 01:42:37,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-23 01:42:37,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2020-12-23 01:42:37,165 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2020-12-23 01:42:37,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:42:37,165 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2020-12-23 01:42:37,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:42:37,166 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2020-12-23 01:42:37,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 01:42:37,167 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:42:37,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:42:37,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 01:42:37,167 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:42:37,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:42:37,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1188560455, now seen corresponding path program 1 times [2020-12-23 01:42:37,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:42:37,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64368876] [2020-12-23 01:42:37,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:42:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:42:37,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:42:37,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64368876] [2020-12-23 01:42:37,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:42:37,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:42:37,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47543945] [2020-12-23 01:42:37,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:42:37,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:42:37,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:42:37,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:42:37,311 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand 3 states. [2020-12-23 01:42:37,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:42:37,342 INFO L93 Difference]: Finished difference Result 100 states and 186 transitions. [2020-12-23 01:42:37,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:42:37,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-23 01:42:37,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:42:37,345 INFO L225 Difference]: With dead ends: 100 [2020-12-23 01:42:37,345 INFO L226 Difference]: Without dead ends: 98 [2020-12-23 01:42:37,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:42:37,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-23 01:42:37,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-12-23 01:42:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-23 01:42:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2020-12-23 01:42:37,361 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2020-12-23 01:42:37,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:42:37,362 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2020-12-23 01:42:37,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:42:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2020-12-23 01:42:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 01:42:37,363 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:42:37,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:42:37,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 01:42:37,364 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:42:37,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:42:37,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1112269327, now seen corresponding path program 1 times [2020-12-23 01:42:37,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:42:37,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593135416] [2020-12-23 01:42:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:42:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:42:37,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:42:37,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593135416] [2020-12-23 01:42:37,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:42:37,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:42:37,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039162912] [2020-12-23 01:42:37,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:42:37,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:42:37,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:42:37,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:42:37,431 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand 3 states. [2020-12-23 01:42:37,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:42:37,467 INFO L93 Difference]: Finished difference Result 233 states and 437 transitions. [2020-12-23 01:42:37,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:42:37,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-23 01:42:37,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:42:37,470 INFO L225 Difference]: With dead ends: 233 [2020-12-23 01:42:37,470 INFO L226 Difference]: Without dead ends: 137 [2020-12-23 01:42:37,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:42:37,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-12-23 01:42:37,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2020-12-23 01:42:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-23 01:42:37,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2020-12-23 01:42:37,488 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2020-12-23 01:42:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:42:37,488 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2020-12-23 01:42:37,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:42:37,489 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2020-12-23 01:42:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 01:42:37,490 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:42:37,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:42:37,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 01:42:37,491 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:42:37,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:42:37,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1112262135, now seen corresponding path program 1 times [2020-12-23 01:42:37,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:42:37,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451553731] [2020-12-23 01:42:37,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:42:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:42:37,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:42:37,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451553731] [2020-12-23 01:42:37,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:42:37,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:42:37,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562519742] [2020-12-23 01:42:37,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:42:37,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:42:37,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:42:37,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:42:37,552 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand 3 states. [2020-12-23 01:42:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:42:37,593 INFO L93 Difference]: Finished difference Result 187 states and 341 transitions. [2020-12-23 01:42:37,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:42:37,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-23 01:42:37,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:42:37,600 INFO L225 Difference]: With dead ends: 187 [2020-12-23 01:42:37,600 INFO L226 Difference]: Without dead ends: 135 [2020-12-23 01:42:37,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:42:37,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-12-23 01:42:37,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2020-12-23 01:42:37,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-12-23 01:42:37,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2020-12-23 01:42:37,631 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2020-12-23 01:42:37,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:42:37,631 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2020-12-23 01:42:37,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:42:37,631 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2020-12-23 01:42:37,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 01:42:37,636 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:42:37,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:42:37,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 01:42:37,638 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:42:37,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:42:37,639 INFO L82 PathProgramCache]: Analyzing trace with hash -476078575, now seen corresponding path program 1 times [2020-12-23 01:42:37,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:42:37,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807153364] [2020-12-23 01:42:37,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:42:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 01:42:37,704 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 01:42:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 01:42:37,729 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 01:42:37,763 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 01:42:37,763 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 01:42:37,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 01:42:37,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:42:37 BoogieIcfgContainer [2020-12-23 01:42:37,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 01:42:37,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 01:42:37,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 01:42:37,820 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 01:42:37,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:42:36" (3/4) ... [2020-12-23 01:42:37,822 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 01:42:37,965 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/locks/test_locks_15-1.c-witness.graphml [2020-12-23 01:42:37,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 01:42:37,970 INFO L168 Benchmark]: Toolchain (without parser) took 2926.85 ms. Allocated memory is still 153.1 MB. Free memory was 129.8 MB in the beginning and 119.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 8.0 GB. [2020-12-23 01:42:37,971 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 153.1 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 01:42:37,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.09 ms. Allocated memory is still 153.1 MB. Free memory was 129.6 MB in the beginning and 118.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-23 01:42:37,975 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.22 ms. Allocated memory is still 153.1 MB. Free memory was 118.5 MB in the beginning and 116.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 01:42:37,976 INFO L168 Benchmark]: Boogie Preprocessor took 34.04 ms. Allocated memory is still 153.1 MB. Free memory was 116.6 MB in the beginning and 115.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 01:42:37,976 INFO L168 Benchmark]: RCFGBuilder took 1011.04 ms. Allocated memory is still 153.1 MB. Free memory was 115.1 MB in the beginning and 123.9 MB in the end (delta: -8.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 8.0 GB. [2020-12-23 01:42:37,977 INFO L168 Benchmark]: TraceAbstraction took 1288.22 ms. Allocated memory is still 153.1 MB. Free memory was 123.4 MB in the beginning and 124.1 MB in the end (delta: -675.8 kB). Peak memory consumption was 372.8 kB. Max. memory is 8.0 GB. [2020-12-23 01:42:37,977 INFO L168 Benchmark]: Witness Printer took 147.35 ms. Allocated memory is still 153.1 MB. Free memory was 124.1 MB in the beginning and 119.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-23 01:42:37,985 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 153.1 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 387.09 ms. Allocated memory is still 153.1 MB. Free memory was 129.6 MB in the beginning and 118.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.22 ms. Allocated memory is still 153.1 MB. Free memory was 118.5 MB in the beginning and 116.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.04 ms. Allocated memory is still 153.1 MB. Free memory was 116.6 MB in the beginning and 115.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1011.04 ms. Allocated memory is still 153.1 MB. Free memory was 115.1 MB in the beginning and 123.9 MB in the end (delta: -8.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1288.22 ms. Allocated memory is still 153.1 MB. Free memory was 123.4 MB in the beginning and 124.1 MB in the end (delta: -675.8 kB). Peak memory consumption was 372.8 kB. Max. memory is 8.0 GB. * Witness Printer took 147.35 ms. Allocated memory is still 153.1 MB. Free memory was 124.1 MB in the beginning and 119.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 233]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 [L93] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L101] COND FALSE !(p3 != 0) [L105] COND TRUE p4 != 0 [L106] lk4 = 1 [L109] COND TRUE p5 != 0 [L110] lk5 = 1 [L113] COND TRUE p6 != 0 [L114] lk6 = 1 [L117] COND TRUE p7 != 0 [L118] lk7 = 1 [L121] COND TRUE p8 != 0 [L122] lk8 = 1 [L125] COND TRUE p9 != 0 [L126] lk9 = 1 [L129] COND TRUE p10 != 0 [L130] lk10 = 1 [L133] COND FALSE !(p11 != 0) [L137] COND TRUE p12 != 0 [L138] lk12 = 1 [L141] COND TRUE p13 != 0 [L142] lk13 = 1 [L145] COND TRUE p14 != 0 [L146] lk14 = 1 [L149] COND TRUE p15 != 0 [L150] lk15 = 1 [L155] COND FALSE !(p1 != 0) [L160] COND FALSE !(p2 != 0) [L233] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 475 SDtfs, 244 SDslu, 307 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 4956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...