/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-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/locks/test_locks_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:46:38,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:46:38,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:46:38,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:46:38,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:46:38,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:46:38,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:46:38,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:46:38,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:46:38,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:46:38,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:46:38,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:46:38,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:46:38,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:46:38,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:46:38,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:46:38,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:46:38,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:46:38,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:46:38,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:46:38,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:46:38,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:46:38,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:46:38,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:46:38,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-07 05:46:38,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-07 05:46:38,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-07 05:46:38,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-07 05:46:38,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-07 05:46:38,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-07 05:46:38,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:46:38,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:46:38,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:46:38,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:46:38,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:46:38,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:46:38,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:46:38,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:46:38,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:46:38,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:46:38,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:46:38,436 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:46:38,488 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:46:38,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:46:38,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:46:38,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:46:38,495 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:46:38,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:46:38,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:46:38,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:46:38,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:46:38,496 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:46:38,497 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:46:38,498 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:46:38,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:46:38,499 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:46:38,499 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:46:38,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:46:38,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:46:38,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:46:38,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:46:38,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:46:38,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:46:38,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:46:38,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:46:38,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:46:38,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:46:38,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:46:38,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:46:39,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:46:39,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:46:39,004 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:46:39,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_15-1.c [2021-01-07 05:46:39,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9e7a9a895/dc3c2aacc93642d785382f93e3f7f999/FLAGb76119624 [2021-01-07 05:46:39,966 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:46:39,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c [2021-01-07 05:46:39,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9e7a9a895/dc3c2aacc93642d785382f93e3f7f999/FLAGb76119624 [2021-01-07 05:46:40,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9e7a9a895/dc3c2aacc93642d785382f93e3f7f999 [2021-01-07 05:46:40,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:46:40,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:46:40,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:46:40,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:46:40,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:46:40,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1d6f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40, skipping insertion in model container [2021-01-07 05:46:40,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:46:40,327 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,] [2021-01-07 05:46:40,528 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] [2021-01-07 05:46:40,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:46:40,548 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,] [2021-01-07 05:46:40,588 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] [2021-01-07 05:46:40,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:46:40,609 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:46:40,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40 WrapperNode [2021-01-07 05:46:40,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:46:40,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:46:40,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:46:40,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:46:40,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:46:40,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:46:40,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:46:40,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:46:40,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (1/1) ... [2021-01-07 05:46:40,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:46:40,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:46:40,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:46:40,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:46:40,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (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 [2021-01-07 05:46:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:46:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:46:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 05:46:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:46:41,703 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:46:41,704 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-01-07 05:46:41,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:41 BoogieIcfgContainer [2021-01-07 05:46:41,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:46:41,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:46:41,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:46:41,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:46:41,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:46:40" (1/3) ... [2021-01-07 05:46:41,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d34d1ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:46:41, skipping insertion in model container [2021-01-07 05:46:41,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:40" (2/3) ... [2021-01-07 05:46:41,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d34d1ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:46:41, skipping insertion in model container [2021-01-07 05:46:41,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:41" (3/3) ... [2021-01-07 05:46:41,717 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2021-01-07 05:46:41,726 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:46:41,732 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-07 05:46:41,755 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-07 05:46:41,784 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:46:41,784 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:46:41,785 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:46:41,785 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:46:41,785 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:46:41,785 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:46:41,785 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:46:41,785 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:46:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2021-01-07 05:46:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-01-07 05:46:41,814 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:41,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-01-07 05:46:41,816 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:41,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:41,825 INFO L82 PathProgramCache]: Analyzing trace with hash 28959891, now seen corresponding path program 1 times [2021-01-07 05:46:41,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:41,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824727271] [2021-01-07 05:46:41,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:42,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:42,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824727271] [2021-01-07 05:46:42,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:42,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:42,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464477707] [2021-01-07 05:46:42,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 05:46:42,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:42,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 05:46:42,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:46:42,135 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2021-01-07 05:46:42,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:42,153 INFO L93 Difference]: Finished difference Result 56 states and 100 transitions. [2021-01-07 05:46:42,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 05:46:42,155 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-01-07 05:46:42,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:42,167 INFO L225 Difference]: With dead ends: 56 [2021-01-07 05:46:42,168 INFO L226 Difference]: Without dead ends: 54 [2021-01-07 05:46:42,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:46:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-01-07 05:46:42,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-01-07 05:46:42,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-01-07 05:46:42,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2021-01-07 05:46:42,218 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 5 [2021-01-07 05:46:42,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:42,219 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2021-01-07 05:46:42,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 05:46:42,219 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2021-01-07 05:46:42,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-07 05:46:42,220 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:42,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-07 05:46:42,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:46:42,221 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:42,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:42,222 INFO L82 PathProgramCache]: Analyzing trace with hash 889700683, now seen corresponding path program 1 times [2021-01-07 05:46:42,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:42,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206553260] [2021-01-07 05:46:42,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:42,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206553260] [2021-01-07 05:46:42,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:42,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:42,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454264328] [2021-01-07 05:46:42,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:42,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:42,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:42,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:42,295 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 3 states. [2021-01-07 05:46:42,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:42,322 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2021-01-07 05:46:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:42,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-01-07 05:46:42,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:42,325 INFO L225 Difference]: With dead ends: 53 [2021-01-07 05:46:42,325 INFO L226 Difference]: Without dead ends: 51 [2021-01-07 05:46:42,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:42,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-01-07 05:46:42,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-01-07 05:46:42,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-01-07 05:46:42,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2021-01-07 05:46:42,336 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 6 [2021-01-07 05:46:42,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:42,336 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2021-01-07 05:46:42,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:42,336 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2021-01-07 05:46:42,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:42,338 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:42,338 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] [2021-01-07 05:46:42,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:46:42,338 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:42,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:42,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1188553263, now seen corresponding path program 1 times [2021-01-07 05:46:42,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:42,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270176157] [2021-01-07 05:46:42,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:42,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:42,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270176157] [2021-01-07 05:46:42,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:42,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:42,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096973382] [2021-01-07 05:46:42,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:42,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:42,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:42,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:42,448 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand 3 states. [2021-01-07 05:46:42,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:42,499 INFO L93 Difference]: Finished difference Result 99 states and 184 transitions. [2021-01-07 05:46:42,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:42,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-07 05:46:42,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:42,502 INFO L225 Difference]: With dead ends: 99 [2021-01-07 05:46:42,502 INFO L226 Difference]: Without dead ends: 99 [2021-01-07 05:46:42,503 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 [2021-01-07 05:46:42,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-01-07 05:46:42,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-01-07 05:46:42,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-01-07 05:46:42,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2021-01-07 05:46:42,521 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2021-01-07 05:46:42,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:42,522 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2021-01-07 05:46:42,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:42,522 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2021-01-07 05:46:42,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:42,523 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:42,523 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] [2021-01-07 05:46:42,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 05:46:42,524 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:42,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:42,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1188560455, now seen corresponding path program 1 times [2021-01-07 05:46:42,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:42,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346022558] [2021-01-07 05:46:42,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:42,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:42,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346022558] [2021-01-07 05:46:42,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:42,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:42,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003231309] [2021-01-07 05:46:42,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:42,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:42,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:42,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:42,594 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand 3 states. [2021-01-07 05:46:42,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:42,616 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2021-01-07 05:46:42,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:42,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-07 05:46:42,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:42,619 INFO L225 Difference]: With dead ends: 98 [2021-01-07 05:46:42,620 INFO L226 Difference]: Without dead ends: 98 [2021-01-07 05:46:42,620 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 [2021-01-07 05:46:42,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-01-07 05:46:42,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-01-07 05:46:42,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-01-07 05:46:42,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2021-01-07 05:46:42,636 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2021-01-07 05:46:42,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:42,637 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2021-01-07 05:46:42,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2021-01-07 05:46:42,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:42,638 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:42,639 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] [2021-01-07 05:46:42,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 05:46:42,639 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:42,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:42,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1112269327, now seen corresponding path program 1 times [2021-01-07 05:46:42,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:42,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184719898] [2021-01-07 05:46:42,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:42,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:42,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184719898] [2021-01-07 05:46:42,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:42,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:42,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420707133] [2021-01-07 05:46:42,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:42,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:42,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:42,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:42,745 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand 3 states. [2021-01-07 05:46:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:42,784 INFO L93 Difference]: Finished difference Result 137 states and 251 transitions. [2021-01-07 05:46:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:42,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-07 05:46:42,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:42,787 INFO L225 Difference]: With dead ends: 137 [2021-01-07 05:46:42,787 INFO L226 Difference]: Without dead ends: 137 [2021-01-07 05:46:42,788 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 [2021-01-07 05:46:42,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-01-07 05:46:42,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2021-01-07 05:46:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2021-01-07 05:46:42,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2021-01-07 05:46:42,805 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2021-01-07 05:46:42,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:42,806 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2021-01-07 05:46:42,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:42,806 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2021-01-07 05:46:42,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:42,810 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:42,811 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] [2021-01-07 05:46:42,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-07 05:46:42,811 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:42,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:42,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1112262135, now seen corresponding path program 1 times [2021-01-07 05:46:42,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:42,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211292916] [2021-01-07 05:46:42,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:42,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211292916] [2021-01-07 05:46:42,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:42,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:42,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714587054] [2021-01-07 05:46:42,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:42,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:42,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:42,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:42,866 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand 3 states. [2021-01-07 05:46:42,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:42,903 INFO L93 Difference]: Finished difference Result 135 states and 244 transitions. [2021-01-07 05:46:42,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:42,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-07 05:46:42,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:42,907 INFO L225 Difference]: With dead ends: 135 [2021-01-07 05:46:42,907 INFO L226 Difference]: Without dead ends: 135 [2021-01-07 05:46:42,908 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 [2021-01-07 05:46:42,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-01-07 05:46:42,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2021-01-07 05:46:42,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2021-01-07 05:46:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2021-01-07 05:46:42,941 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2021-01-07 05:46:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:42,941 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2021-01-07 05:46:42,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2021-01-07 05:46:42,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:42,946 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:42,946 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] [2021-01-07 05:46:42,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-07 05:46:42,947 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:42,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:42,948 INFO L82 PathProgramCache]: Analyzing trace with hash -476078575, now seen corresponding path program 1 times [2021-01-07 05:46:42,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:42,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892115958] [2021-01-07 05:46:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:46:43,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:46:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:46:43,033 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:46:43,067 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-07 05:46:43,067 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-07 05:46:43,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-07 05:46:43,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 05:46:43 BoogieIcfgContainer [2021-01-07 05:46:43,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 05:46:43,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 05:46:43,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 05:46:43,121 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 05:46:43,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:41" (3/4) ... [2021-01-07 05:46:43,125 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-01-07 05:46:43,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 05:46:43,128 INFO L168 Benchmark]: Toolchain (without parser) took 2849.70 ms. Allocated memory is still 160.4 MB. Free memory was 135.6 MB in the beginning and 64.7 MB in the end (delta: 70.9 MB). Peak memory consumption was 71.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:43,129 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 160.4 MB. Free memory is still 135.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:46:43,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.10 ms. Allocated memory is still 160.4 MB. Free memory was 135.4 MB in the beginning and 124.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:43,130 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.81 ms. Allocated memory is still 160.4 MB. Free memory was 124.2 MB in the beginning and 122.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:43,131 INFO L168 Benchmark]: Boogie Preprocessor took 39.95 ms. Allocated memory is still 160.4 MB. Free memory was 122.5 MB in the beginning and 121.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:43,132 INFO L168 Benchmark]: RCFGBuilder took 996.85 ms. Allocated memory is still 160.4 MB. Free memory was 121.0 MB in the beginning and 129.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:43,133 INFO L168 Benchmark]: TraceAbstraction took 1411.20 ms. Allocated memory is still 160.4 MB. Free memory was 129.7 MB in the beginning and 64.7 MB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:43,133 INFO L168 Benchmark]: Witness Printer took 5.09 ms. Allocated memory is still 160.4 MB. Free memory is still 64.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:46:43,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 160.4 MB. Free memory is still 135.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 330.10 ms. Allocated memory is still 160.4 MB. Free memory was 135.4 MB in the beginning and 124.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.81 ms. Allocated memory is still 160.4 MB. Free memory was 124.2 MB in the beginning and 122.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.95 ms. Allocated memory is still 160.4 MB. Free memory was 122.5 MB in the beginning and 121.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 996.85 ms. Allocated memory is still 160.4 MB. Free memory was 121.0 MB in the beginning and 129.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1411.20 ms. Allocated memory is still 160.4 MB. Free memory was 129.7 MB in the beginning and 64.7 MB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 8.0 GB. * Witness Printer took 5.09 ms. Allocated memory is still 160.4 MB. Free memory is still 64.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 233. Possible 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, 56 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 664 SDtfs, 332 SDslu, 303 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 5037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...