/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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadExitSafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 04:56:37,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 04:56:37,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 04:56:37,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 04:56:37,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 04:56:37,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 04:56:37,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 04:56:37,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 04:56:37,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 04:56:37,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 04:56:37,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 04:56:37,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 04:56:37,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 04:56:37,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 04:56:37,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 04:56:37,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 04:56:37,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 04:56:37,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 04:56:37,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 04:56:37,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 04:56:37,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 04:56:37,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 04:56:37,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 04:56:37,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 04:56:37,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 04:56:37,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 04:56:37,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 04:56:37,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 04:56:37,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 04:56:37,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 04:56:37,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 04:56:37,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 04:56:37,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 04:56:37,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 04:56:37,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 04:56:37,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 04:56:37,329 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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-04 04:56:37,354 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 04:56:37,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 04:56:37,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 04:56:37,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 04:56:37,355 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 04:56:37,355 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 04:56:37,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 04:56:37,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 04:56:37,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 04:56:37,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 04:56:37,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 04:56:37,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 04:56:37,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 04:56:37,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 04:56:37,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 04:56:37,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 04:56:37,357 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 04:56:37,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 04:56:37,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 04:56:37,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 04:56:37,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 04:56:37,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 04:56:37,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 04:56:37,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 04:56:37,358 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 04:56:37,358 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 04:56:37,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 04:56:37,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 04:56:37,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 04:56:37,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 04:56:37,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-04 04:56:37,554 INFO L275 PluginConnector]: CDTParser initialized [2022-03-04 04:56:37,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadExitSafe.c [2022-03-04 04:56:37,614 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e73114f/bd0ea2b081dd47aa8e488c4c8b4eddcc/FLAGaf15fb837 [2022-03-04 04:56:37,940 INFO L306 CDTParser]: Found 1 translation units. [2022-03-04 04:56:37,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadExitSafe.c [2022-03-04 04:56:37,940 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-04 04:56:37,941 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-04 04:56:37,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e73114f/bd0ea2b081dd47aa8e488c4c8b4eddcc/FLAGaf15fb837 [2022-03-04 04:56:38,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e73114f/bd0ea2b081dd47aa8e488c4c8b4eddcc [2022-03-04 04:56:38,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 04:56:38,378 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-04 04:56:38,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-04 04:56:38,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-04 04:56:38,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-04 04:56:38,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c5fefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38, skipping insertion in model container [2022-03-04 04:56:38,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-04 04:56:38,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-04 04:56:38,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 04:56:38,517 INFO L203 MainTranslator]: Completed pre-run [2022-03-04 04:56:38,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 04:56:38,533 INFO L208 MainTranslator]: Completed translation [2022-03-04 04:56:38,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38 WrapperNode [2022-03-04 04:56:38,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-04 04:56:38,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 04:56:38,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 04:56:38,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 04:56:38,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,554 INFO L137 Inliner]: procedures = 11, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-03-04 04:56:38,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 04:56:38,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 04:56:38,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 04:56:38,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 04:56:38,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 04:56:38,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 04:56:38,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 04:56:38,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 04:56:38,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (1/1) ... [2022-03-04 04:56:38,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 04:56:38,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 04:56:38,587 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) [2022-03-04 04:56:38,592 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 [2022-03-04 04:56:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-04 04:56:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-04 04:56:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2022-03-04 04:56:38,611 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2022-03-04 04:56:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 04:56:38,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 04:56:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-04 04:56:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-04 04:56:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-04 04:56:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-04 04:56:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-04 04:56:38,612 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 04:56:38,719 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 04:56:38,720 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 04:56:38,867 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 04:56:38,872 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 04:56:38,872 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 04:56:38,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:56:38 BoogieIcfgContainer [2022-03-04 04:56:38,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 04:56:38,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 04:56:38,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 04:56:38,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 04:56:38,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 04:56:38" (1/3) ... [2022-03-04 04:56:38,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ba780d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:56:38, skipping insertion in model container [2022-03-04 04:56:38,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:56:38" (2/3) ... [2022-03-04 04:56:38,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ba780d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:56:38, skipping insertion in model container [2022-03-04 04:56:38,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:56:38" (3/3) ... [2022-03-04 04:56:38,885 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadExitSafe.c [2022-03-04 04:56:38,888 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 04:56:38,888 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 04:56:38,888 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 04:56:38,888 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 04:56:38,925 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,925 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,925 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,925 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,926 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,926 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,926 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,926 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,926 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,927 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,927 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,927 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,928 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,928 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,928 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,928 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,929 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,929 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,929 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,930 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,930 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,930 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,931 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,931 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,932 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,932 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,933 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,933 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,933 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,934 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,934 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,934 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,934 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,934 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,935 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,935 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,936 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,936 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,936 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,936 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,936 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,936 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,936 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,936 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,941 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,941 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,941 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,941 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,941 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,942 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,942 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,942 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:56:38,946 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-04 04:56:38,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 04:56:38,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 04:56:38,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 04:56:38,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 04:56:39,003 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 04:56:39,007 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-04 04:56:39,008 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-04 04:56:39,051 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 42 transitions and produced 43 states. [2022-03-04 04:56:39,052 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 04:56:39,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 04:56:39,056 INFO L85 PathProgramCache]: Analyzing trace with hash 541221637, now seen corresponding path program 1 times [2022-03-04 04:56:39,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 04:56:39,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072386158] [2022-03-04 04:56:39,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 04:56:39,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 04:56:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 04:56:39,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:56:39,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 04:56:39,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072386158] [2022-03-04 04:56:39,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072386158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 04:56:39,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 04:56:39,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-04 04:56:39,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130098877] [2022-03-04 04:56:39,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 04:56:39,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-04 04:56:39,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 04:56:39,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-04 04:56:39,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-04 04:56:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:56:39,547 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 04:56:39,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 states have internal predecessors, (38), 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) [2022-03-04 04:56:39,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:56:40,157 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 117 transitions and produced 82 states. [2022-03-04 04:56:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-04 04:56:40,160 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-03-04 04:56:40,160 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-04 04:56:40,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 04:56:40,165 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-03-04 04:56:40,166 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 04:56:40,166 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 04:56:40,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 04:56:40 BasicIcfg [2022-03-04 04:56:40,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 04:56:40,173 INFO L158 Benchmark]: Toolchain (without parser) took 1791.49ms. Allocated memory was 198.2MB in the beginning and 267.4MB in the end (delta: 69.2MB). Free memory was 137.9MB in the beginning and 124.7MB in the end (delta: 13.2MB). Peak memory consumption was 82.8MB. Max. memory is 8.0GB. [2022-03-04 04:56:40,174 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 156.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 04:56:40,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 154.49ms. Allocated memory was 198.2MB in the beginning and 267.4MB in the end (delta: 69.2MB). Free memory was 137.7MB in the beginning and 237.9MB in the end (delta: -100.2MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. [2022-03-04 04:56:40,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.09ms. Allocated memory is still 267.4MB. Free memory was 237.9MB in the beginning and 236.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 04:56:40,177 INFO L158 Benchmark]: Boogie Preprocessor took 12.69ms. Allocated memory is still 267.4MB. Free memory was 236.3MB in the beginning and 235.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 04:56:40,177 INFO L158 Benchmark]: RCFGBuilder took 305.79ms. Allocated memory is still 267.4MB. Free memory was 235.3MB in the beginning and 223.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-04 04:56:40,178 INFO L158 Benchmark]: TraceAbstraction took 1294.67ms. Allocated memory is still 267.4MB. Free memory was 222.7MB in the beginning and 124.7MB in the end (delta: 98.0MB). Peak memory consumption was 98.6MB. Max. memory is 8.0GB. [2022-03-04 04:56:40,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 156.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 154.49ms. Allocated memory was 198.2MB in the beginning and 267.4MB in the end (delta: 69.2MB). Free memory was 137.7MB in the beginning and 237.9MB in the end (delta: -100.2MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.09ms. Allocated memory is still 267.4MB. Free memory was 237.9MB in the beginning and 236.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.69ms. Allocated memory is still 267.4MB. Free memory was 236.3MB in the beginning and 235.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 305.79ms. Allocated memory is still 267.4MB. Free memory was 235.3MB in the beginning and 223.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1294.67ms. Allocated memory is still 267.4MB. Free memory was 222.7MB in the beginning and 124.7MB in the end (delta: 98.0MB). Peak memory consumption was 98.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 29]: 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, 62 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 23, 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, 0.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 331 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! [2022-03-04 04:56:40,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-04 04:56:40,404 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...