/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadReturn.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 23:58:04,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 23:58:04,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 23:58:04,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 23:58:04,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 23:58:04,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 23:58:04,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 23:58:04,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 23:58:04,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 23:58:04,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 23:58:04,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 23:58:04,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 23:58:04,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 23:58:04,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 23:58:04,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 23:58:04,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 23:58:04,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 23:58:04,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 23:58:04,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 23:58:04,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 23:58:04,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 23:58:04,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 23:58:04,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 23:58:04,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 23:58:04,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 23:58:04,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 23:58:04,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 23:58:04,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 23:58:04,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 23:58:04,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 23:58:04,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 23:58:04,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 23:58:04,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 23:58:04,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 23:58:04,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 23:58:04,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 23:58:04,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 23:58:04,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 23:58:04,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 23:58:04,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 23:58:04,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 23:58:04,924 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-FA-NoLbe.epf [2022-02-10 23:58:04,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 23:58:04,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 23:58:04,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 23:58:04,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 23:58:04,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 23:58:04,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 23:58:04,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 23:58:04,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 23:58:04,939 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 23:58:04,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 23:58:04,939 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 23:58:04,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 23:58:04,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 23:58:04,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 23:58:04,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 23:58:04,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 23:58:04,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 23:58:04,940 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 23:58:04,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 23:58:04,940 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 23:58:04,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 23:58:04,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 23:58:04,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 23:58:04,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 23:58:04,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 23:58:04,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:58:04,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 23:58:04,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 23:58:04,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 23:58:04,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 23:58:04,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 23:58:04,941 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 23:58:04,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 23:58:04,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 23:58:05,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 23:58:05,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 23:58:05,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 23:58:05,149 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 23:58:05,150 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 23:58:05,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadReturn.c [2022-02-10 23:58:05,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8df62a54c/fa98e455d6fb4266995ca0596ea57cb6/FLAGa5418fd1e [2022-02-10 23:58:05,576 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 23:58:05,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadReturn.c [2022-02-10 23:58:05,577 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-10 23:58:05,577 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-10 23:58:05,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8df62a54c/fa98e455d6fb4266995ca0596ea57cb6/FLAGa5418fd1e [2022-02-10 23:58:05,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8df62a54c/fa98e455d6fb4266995ca0596ea57cb6 [2022-02-10 23:58:05,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 23:58:05,611 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 23:58:05,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 23:58:05,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 23:58:05,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 23:58:05,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59988f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05, skipping insertion in model container [2022-02-10 23:58:05,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 23:58:05,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 23:58:05,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:58:05,753 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 23:58:05,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:58:05,770 INFO L208 MainTranslator]: Completed translation [2022-02-10 23:58:05,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05 WrapperNode [2022-02-10 23:58:05,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 23:58:05,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 23:58:05,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 23:58:05,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 23:58:05,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,796 INFO L137 Inliner]: procedures = 10, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2022-02-10 23:58:05,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 23:58:05,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 23:58:05,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 23:58:05,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 23:58:05,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 23:58:05,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 23:58:05,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 23:58:05,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 23:58:05,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (1/1) ... [2022-02-10 23:58:05,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:58:05,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:58:05,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 23:58:05,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 23:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-10 23:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 23:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 23:58:05,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 23:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 23:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-10 23:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 23:58:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure myThread [2022-02-10 23:58:05,872 INFO L138 BoogieDeclarations]: Found implementation of procedure myThread [2022-02-10 23:58:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 23:58:05,872 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 23:58:05,927 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 23:58:05,928 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 23:58:06,051 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 23:58:06,055 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 23:58:06,056 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 23:58:06,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:58:06 BoogieIcfgContainer [2022-02-10 23:58:06,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 23:58:06,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 23:58:06,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 23:58:06,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 23:58:06,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 11:58:05" (1/3) ... [2022-02-10 23:58:06,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b12f3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:58:06, skipping insertion in model container [2022-02-10 23:58:06,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:05" (2/3) ... [2022-02-10 23:58:06,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b12f3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:58:06, skipping insertion in model container [2022-02-10 23:58:06,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:58:06" (3/3) ... [2022-02-10 23:58:06,062 INFO L112 eAbstractionObserver]: Analyzing ICFG pthreadReturn.c [2022-02-10 23:58:06,066 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 23:58:06,066 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 23:58:06,066 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 23:58:06,066 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 23:58:06,120 WARN L322 ript$VariableManager]: TermVariable |myThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:06,121 WARN L322 ript$VariableManager]: TermVariable |myThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:06,121 WARN L322 ript$VariableManager]: TermVariable |myThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:06,121 WARN L322 ript$VariableManager]: TermVariable |myThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:06,124 WARN L322 ript$VariableManager]: TermVariable |myThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:06,124 WARN L322 ript$VariableManager]: TermVariable |myThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:06,128 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 23:58:06,175 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:58:06,180 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 23:58:06,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:58:06,188 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 36 transitions, 80 flow [2022-02-10 23:58:06,202 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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) [2022-02-10 23:58:06,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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) [2022-02-10 23:58:06,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-02-10 23:58:06,209 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:58:06,209 INFO L515 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, 1, 1, 1] [2022-02-10 23:58:06,210 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:58:06,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:58:06,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1516329487, now seen corresponding path program 1 times [2022-02-10 23:58:06,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:58:06,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504983860] [2022-02-10 23:58:06,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:58:06,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:58:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:58:06,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:58:06,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:58:06,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504983860] [2022-02-10 23:58:06,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504983860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:58:06,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:58:06,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 23:58:06,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391192209] [2022-02-10 23:58:06,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:58:06,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 23:58:06,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:58:06,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 23:58:06,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:58:06,546 INFO L87 Difference]: Start difference. First operand has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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) Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-02-10 23:58:06,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:58:06,643 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-02-10 23:58:06,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 23:58:06,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) Word has length 25 [2022-02-10 23:58:06,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:58:06,650 INFO L225 Difference]: With dead ends: 31 [2022-02-10 23:58:06,650 INFO L226 Difference]: Without dead ends: 0 [2022-02-10 23:58:06,653 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 23:58:06,656 INFO L934 BasicCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:58:06,658 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 99 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:58:06,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-10 23:58:06,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-10 23:58:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-02-10 23:58:06,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-10 23:58:06,676 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-02-10 23:58:06,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:58:06,677 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-10 23:58:06,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-02-10 23:58:06,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-10 23:58:06,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-10 23:58:06,682 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-10 23:58:06,683 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-10 23:58:06,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 23:58:06,686 INFO L733 BasicCegarLoop]: Path program histogram: [1] [2022-02-10 23:58:06,689 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 23:58:06,690 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 23:58:06,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 11:58:06 BasicIcfg [2022-02-10 23:58:06,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 23:58:06,696 INFO L158 Benchmark]: Toolchain (without parser) took 1084.81ms. Allocated memory is still 210.8MB. Free memory was 157.8MB in the beginning and 139.6MB in the end (delta: 18.3MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. [2022-02-10 23:58:06,697 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 210.8MB. Free memory is still 176.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 23:58:06,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.26ms. Allocated memory is still 210.8MB. Free memory was 157.7MB in the beginning and 185.7MB in the end (delta: -28.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-10 23:58:06,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.37ms. Allocated memory is still 210.8MB. Free memory was 185.7MB in the beginning and 184.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 23:58:06,699 INFO L158 Benchmark]: Boogie Preprocessor took 11.12ms. Allocated memory is still 210.8MB. Free memory was 184.1MB in the beginning and 183.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 23:58:06,699 INFO L158 Benchmark]: RCFGBuilder took 248.09ms. Allocated memory is still 210.8MB. Free memory was 183.1MB in the beginning and 173.1MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-10 23:58:06,699 INFO L158 Benchmark]: TraceAbstraction took 637.78ms. Allocated memory is still 210.8MB. Free memory was 172.6MB in the beginning and 139.6MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-02-10 23:58:06,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 210.8MB. Free memory is still 176.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 159.26ms. Allocated memory is still 210.8MB. Free memory was 157.7MB in the beginning and 185.7MB in the end (delta: -28.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.37ms. Allocated memory is still 210.8MB. Free memory was 185.7MB in the beginning and 184.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.12ms. Allocated memory is still 210.8MB. Free memory was 184.1MB in the beginning and 183.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 248.09ms. Allocated memory is still 210.8MB. Free memory was 183.1MB in the beginning and 173.1MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 637.78ms. Allocated memory is still 210.8MB. Free memory was 172.6MB in the beginning and 139.6MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 31]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 41 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 23 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-10 23:58:06,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...