/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-27 01:01:06,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-27 01:01:06,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-27 01:01:06,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-27 01:01:06,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-27 01:01:06,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-27 01:01:06,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-27 01:01:06,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-27 01:01:06,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-27 01:01:06,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-27 01:01:06,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-27 01:01:06,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-27 01:01:06,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-27 01:01:06,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-27 01:01:06,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-27 01:01:07,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-27 01:01:07,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-27 01:01:07,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-27 01:01:07,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-27 01:01:07,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-27 01:01:07,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-27 01:01:07,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-27 01:01:07,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-27 01:01:07,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-27 01:01:07,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-27 01:01:07,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-27 01:01:07,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-27 01:01:07,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-27 01:01:07,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf [2021-01-27 01:01:07,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-27 01:01:07,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-27 01:01:07,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-27 01:01:07,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-27 01:01:07,062 INFO L138 SettingsManager]: * Use SBE=true [2021-01-27 01:01:07,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-27 01:01:07,062 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-27 01:01:07,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-27 01:01:07,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-27 01:01:07,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-27 01:01:07,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-27 01:01:07,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-27 01:01:07,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-27 01:01:07,064 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-27 01:01:07,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-27 01:01:07,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-27 01:01:07,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-27 01:01:07,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-27 01:01:07,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-27 01:01:07,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-27 01:01:07,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-27 01:01:07,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-27 01:01:07,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-27 01:01:07,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-27 01:01:07,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-27 01:01:07,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-27 01:01:07,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-27 01:01:07,067 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-27 01:01:07,067 INFO L138 SettingsManager]: * Lazy Petri-NFA conversion=true [2021-01-27 01:01:07,067 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=SLEEP_SET_FA [2021-01-27 01:01:07,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-27 01:01:07,068 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-27 01:01:07,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-01-27 01:01:07,068 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-27 01:01:07,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-27 01:01:07,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-27 01:01:07,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-27 01:01:07,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-27 01:01:07,508 INFO L275 PluginConnector]: CDTParser initialized [2021-01-27 01:01:07,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-01-27 01:01:07,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f514d07/7c248ea9185841d39ee83b2d88348e1d/FLAG9d253d2b1 [2021-01-27 01:01:08,476 INFO L306 CDTParser]: Found 1 translation units. [2021-01-27 01:01:08,480 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-01-27 01:01:08,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f514d07/7c248ea9185841d39ee83b2d88348e1d/FLAG9d253d2b1 [2021-01-27 01:01:08,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f514d07/7c248ea9185841d39ee83b2d88348e1d [2021-01-27 01:01:08,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-27 01:01:08,750 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-27 01:01:08,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-27 01:01:08,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-27 01:01:08,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-27 01:01:08,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 01:01:08" (1/1) ... [2021-01-27 01:01:08,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2071dedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:08, skipping insertion in model container [2021-01-27 01:01:08,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 01:01:08" (1/1) ... [2021-01-27 01:01:08,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-27 01:01:08,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-27 01:01:08,996 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-27 01:01:09,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-27 01:01:09,163 INFO L203 MainTranslator]: Completed pre-run [2021-01-27 01:01:09,184 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-27 01:01:09,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-27 01:01:09,399 INFO L208 MainTranslator]: Completed translation [2021-01-27 01:01:09,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09 WrapperNode [2021-01-27 01:01:09,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-27 01:01:09,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-27 01:01:09,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-27 01:01:09,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-27 01:01:09,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (1/1) ... [2021-01-27 01:01:09,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (1/1) ... [2021-01-27 01:01:09,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-27 01:01:09,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-27 01:01:09,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-27 01:01:09,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-27 01:01:09,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (1/1) ... [2021-01-27 01:01:09,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (1/1) ... [2021-01-27 01:01:09,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (1/1) ... [2021-01-27 01:01:09,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (1/1) ... [2021-01-27 01:01:09,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (1/1) ... [2021-01-27 01:01:09,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (1/1) ... [2021-01-27 01:01:09,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (1/1) ... [2021-01-27 01:01:09,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-27 01:01:09,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-27 01:01:09,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-27 01:01:09,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-27 01:01:09,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-01-27 01:01:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-01-27 01:01:09,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-01-27 01:01:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-27 01:01:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-27 01:01:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-27 01:01:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-27 01:01:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-27 01:01:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-27 01:01:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-27 01:01:09,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-27 01:01:09,609 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-27 01:01:10,429 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-27 01:01:10,429 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-27 01:01:10,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 01:01:10 BoogieIcfgContainer [2021-01-27 01:01:10,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-27 01:01:10,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-27 01:01:10,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-27 01:01:10,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-27 01:01:10,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 01:01:08" (1/3) ... [2021-01-27 01:01:10,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db33a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 01:01:10, skipping insertion in model container [2021-01-27 01:01:10,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 01:01:09" (2/3) ... [2021-01-27 01:01:10,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db33a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 01:01:10, skipping insertion in model container [2021-01-27 01:01:10,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 01:01:10" (3/3) ... [2021-01-27 01:01:10,442 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2021-01-27 01:01:10,460 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-27 01:01:10,460 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-27 01:01:10,464 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-27 01:01:10,465 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-27 01:01:10,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,501 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,501 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,501 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,502 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-27 01:01:10,507 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-27 01:01:10,524 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-27 01:01:10,553 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-27 01:01:10,553 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-27 01:01:10,553 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-27 01:01:10,553 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-27 01:01:10,553 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-27 01:01:10,554 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-27 01:01:10,554 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-27 01:01:10,554 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Size of Word is: 30 and size of Sequence is : 31[2021-01-27 01:01:10,616 INFO L164 SleepSetCegar]: Size of mCounterexample is: 31 [2021-01-27 01:01:10,617 INFO L165 SleepSetCegar]: [59#[ULTIMATE.startENTRY]don't care, 62#[L-1]don't care, 65#[L-1-1]don't care, 68#[L16]don't care, 71#[L16-1]don't care, 74#[L16-2]don't care, 77#[L16-3]don't care, 80#[L16-4]don't care, 83#[L704]don't care, 86#[L704-1]don't care, 89#[L704-2]don't care, 92#[L-1-2]don't care, 95#[L-1-3]don't care, 98#[L749]don't care, 101#[L749-1]don't care, 104#[L750]don't care, 107#[L750-1, thr1ENTRY]don't care, 112#[L751, thr1ENTRY]don't care, 118#[thr1ENTRY, L751-1]don't care, 122#[thr1ENTRY, L751-2]don't care, 130#[thr1ENTRY, L724]don't care, 134#[L725, thr1ENTRY]don't care, 140#[L725-1, thr1ENTRY]don't care, 146#[L728, thr1ENTRY]don't care, 152#[thr1ENTRY, L731]don't care, 160#[L734, thr1ENTRY]don't care, 166#[thr1ENTRY, L737]don't care, 174#[L738, thr1ENTRY]don't care, 181#[L16-5, thr1ENTRY]don't care, 187#[L16-7, thr1ENTRY]don't care, 453#[thr1ENTRY, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]don't care] [2021-01-27 01:01:10,617 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-27 01:01:10,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-27 01:01:10,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1200421411, now seen corresponding path program 1 times [2021-01-27 01:01:10,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-27 01:01:10,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608649426] [2021-01-27 01:01:10,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-27 01:01:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-27 01:01:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-27 01:01:10,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608649426] [2021-01-27 01:01:10,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-27 01:01:10,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-27 01:01:10,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21512601] [2021-01-27 01:01:10,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-27 01:01:10,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-27 01:01:10,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-27 01:01:10,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-27 01:01:10,960 INFO L481 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-01-27 01:01:10,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-27 01:01:11,070 WARN L160 IndependenceRelation]: Requesting ManagedScript unlock before implication check Size of Word is: 33 and size of Sequence is : 34[2021-01-27 01:01:11,101 INFO L164 SleepSetCegar]: Size of mCounterexample is: 34 [2021-01-27 01:01:11,101 INFO L165 SleepSetCegar]: [461#[ULTIMATE.startENTRY]true, 463#[L-1]true, 465#[L-1-1]true, 467#[L16]true, 469#[L16-1]true, 471#[L16-2]true, 473#[L16-3]true, 475#[L16-4]true, 477#[L704]true, 479#[L704-1]true, 481#[L704-2]true, 483#[L-1-2]true, 485#[L-1-3]true, 487#[L749]true, 489#[L749-1]true, 491#[L750]true, 493#[L750-1, thr1ENTRY]true, 496#[L751, thr1ENTRY]true, 500#[thr1ENTRY, L751-1]true, 503#[thr1ENTRY, L751-2]true, 508#[thr1ENTRY, L724]true, 511#[L725, thr1ENTRY]true, 515#[L725-1, thr1ENTRY]true, 519#[L728, thr1ENTRY](= ~x~0 ULTIMATE.start_thr2_~l~0), 525#[thr1ENTRY, L731](and (= ~x~0 ULTIMATE.start_thr2_~l~0) (= ~y~0 ~x~0)), 532#[L734, thr1ENTRY](and (= ~x~0 ULTIMATE.start_thr2_~l~0) (= ULTIMATE.start_thr2_~ly~0 ~x~0) (= ~y~0 ~x~0)), 535#[L734, L712](and (= ~x~0 ULTIMATE.start_thr2_~l~0) (= ULTIMATE.start_thr2_~ly~0 ~x~0) (= ~y~0 ~x~0)), 745#[L734, L712-1](and (= ~x~0 ULTIMATE.start_thr2_~l~0) (= ULTIMATE.start_thr2_~ly~0 ~x~0) (= ~y~0 ~x~0)), 749#[L714, L734]true, 753#[L714, L737]true, 758#[L714, L738]true, 765#[L714, L16-5]true, 773#[L714, L16-7]true, 786#[L714, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]true] [2021-01-27 01:01:11,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-27 01:01:11,102 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-27 01:01:11,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-27 01:01:11,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2135716450, now seen corresponding path program 1 times [2021-01-27 01:01:11,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-27 01:01:11,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673894923] [2021-01-27 01:01:11,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-27 01:01:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-27 01:01:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-27 01:01:11,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673894923] [2021-01-27 01:01:11,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-27 01:01:11,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-27 01:01:11,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544624455] [2021-01-27 01:01:11,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-27 01:01:11,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-27 01:01:11,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-27 01:01:11,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-27 01:01:11,226 INFO L481 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-01-27 01:01:11,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-27 01:01:11,263 WARN L160 IndependenceRelation]: Requesting ManagedScript unlock before implication check [2021-01-27 01:01:11,288 WARN L160 IndependenceRelation]: Requesting ManagedScript unlock before implication check [2021-01-27 01:01:11,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-27 01:01:11,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 01:01:11 BasicIcfg [2021-01-27 01:01:11,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-27 01:01:11,371 INFO L168 Benchmark]: Toolchain (without parser) took 2630.08 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 179.0 MB in the end (delta: 96.7 MB). Peak memory consumption was 97.9 MB. Max. memory is 16.0 GB. [2021-01-27 01:01:11,372 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-27 01:01:11,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.65 ms. Allocated memory is still 302.0 MB. Free memory was 274.6 MB in the beginning and 271.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.0 GB. [2021-01-27 01:01:11,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.77 ms. Allocated memory is still 302.0 MB. Free memory was 271.3 MB in the beginning and 269.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-27 01:01:11,375 INFO L168 Benchmark]: Boogie Preprocessor took 28.39 ms. Allocated memory is still 302.0 MB. Free memory was 269.2 MB in the beginning and 268.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-27 01:01:11,375 INFO L168 Benchmark]: RCFGBuilder took 918.10 ms. Allocated memory is still 302.0 MB. Free memory was 268.1 MB in the beginning and 238.8 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-01-27 01:01:11,376 INFO L168 Benchmark]: TraceAbstraction took 934.28 ms. Allocated memory is still 302.0 MB. Free memory was 237.7 MB in the beginning and 180.0 MB in the end (delta: 57.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.0 GB. [2021-01-27 01:01:11,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 648.65 ms. Allocated memory is still 302.0 MB. Free memory was 274.6 MB in the beginning and 271.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 81.77 ms. Allocated memory is still 302.0 MB. Free memory was 271.3 MB in the beginning and 269.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.39 ms. Allocated memory is still 302.0 MB. Free memory was 269.2 MB in the beginning and 268.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 918.10 ms. Allocated memory is still 302.0 MB. Free memory was 268.1 MB in the beginning and 238.8 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 934.28 ms. Allocated memory is still 302.0 MB. Free memory was 237.7 MB in the beginning and 180.0 MB in the end (delta: 57.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 3249 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 correct! Received shutdown request...