/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-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/11a-double-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 22:06:15,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 22:06:15,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 22:06:15,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 22:06:15,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 22:06:15,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 22:06:15,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 22:06:15,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 22:06:15,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 22:06:15,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 22:06:15,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 22:06:15,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 22:06:15,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 22:06:15,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 22:06:15,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 22:06:15,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 22:06:15,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 22:06:15,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 22:06:15,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 22:06:15,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 22:06:15,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 22:06:15,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 22:06:15,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 22:06:15,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 22:06:15,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-19 22:06:15,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-19 22:06:15,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-19 22:06:15,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-19 22:06:15,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-19 22:06:15,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-19 22:06:15,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-19 22:06:15,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-19 22:06:15,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-19 22:06:15,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-19 22:06:15,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-19 22:06:15,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-19 22:06:15,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-19 22:06:15,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-19 22:06:15,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 22:06:15,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 22:06:15,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 22:06:15,749 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-wrwc.epf [2022-02-19 22:06:15,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 22:06:15,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 22:06:15,770 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 22:06:15,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 22:06:15,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 22:06:15,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 22:06:15,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 22:06:15,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 22:06:15,772 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 22:06:15,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 22:06:15,772 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 22:06:15,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 22:06:15,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 22:06:15,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 22:06:15,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 22:06:15,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 22:06:15,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 22:06:15,772 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 22:06:15,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 22:06:15,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 22:06:15,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 22:06:15,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 22:06:15,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 22:06:15,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 22:06:15,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 22:06:15,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:06:15,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 22:06:15,774 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 22:06:15,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 22:06:15,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 22:06:15,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 22:06:15,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 22:06:15,774 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 22:06:15,774 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 22:06:15,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 22:06:15,775 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 22:06:15,775 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 22:06:15,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 22:06:15,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 22:06:15,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 22:06:15,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 22:06:15,969 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-19 22:06:15,970 INFO L275 PluginConnector]: CDTParser initialized [2022-02-19 22:06:15,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/11a-double-end.c [2022-02-19 22:06:16,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04e1ba75e/3da10e6b27924644b933d7c02143accb/FLAGca5deb7b5 [2022-02-19 22:06:16,312 INFO L306 CDTParser]: Found 1 translation units. [2022-02-19 22:06:16,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11a-double-end.c [2022-02-19 22:06:16,313 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-19 22:06:16,347 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04e1ba75e/3da10e6b27924644b933d7c02143accb/FLAGca5deb7b5 [2022-02-19 22:06:16,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04e1ba75e/3da10e6b27924644b933d7c02143accb [2022-02-19 22:06:16,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 22:06:16,748 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-19 22:06:16,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-19 22:06:16,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-19 22:06:16,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-19 22:06:16,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25fa3838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16, skipping insertion in model container [2022-02-19 22:06:16,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-19 22:06:16,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-19 22:06:16,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 22:06:16,928 INFO L203 MainTranslator]: Completed pre-run [2022-02-19 22:06:16,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 22:06:16,943 INFO L208 MainTranslator]: Completed translation [2022-02-19 22:06:16,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16 WrapperNode [2022-02-19 22:06:16,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-19 22:06:16,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 22:06:16,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 22:06:16,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 22:06:16,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,975 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-02-19 22:06:16,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 22:06:16,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 22:06:16,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 22:06:16,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 22:06:16,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 22:06:16,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 22:06:16,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 22:06:16,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 22:06:16,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (1/1) ... [2022-02-19 22:06:16,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:06:16,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:06:17,006 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) [2022-02-19 22:06:17,011 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 [2022-02-19 22:06:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-19 22:06:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-19 22:06:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-19 22:06:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-19 22:06:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-19 22:06:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 22:06:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 22:06:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-19 22:06:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-19 22:06:17,042 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 22:06:17,088 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 22:06:17,089 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 22:06:17,158 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 22:06:17,172 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 22:06:17,173 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 22:06:17,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:06:17 BoogieIcfgContainer [2022-02-19 22:06:17,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 22:06:17,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 22:06:17,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 22:06:17,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 22:06:17,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 10:06:16" (1/3) ... [2022-02-19 22:06:17,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f624c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:06:17, skipping insertion in model container [2022-02-19 22:06:17,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:06:16" (2/3) ... [2022-02-19 22:06:17,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f624c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:06:17, skipping insertion in model container [2022-02-19 22:06:17,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:06:17" (3/3) ... [2022-02-19 22:06:17,180 INFO L111 eAbstractionObserver]: Analyzing ICFG 11a-double-end.c [2022-02-19 22:06:17,183 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 22:06:17,184 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 22:06:17,184 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 22:06:17,184 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 22:06:17,198 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,198 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,198 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,198 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,199 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,199 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,199 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,199 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,199 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,200 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,200 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,200 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,208 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,208 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,209 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,209 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:17,210 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-19 22:06:17,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 22:06:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:06:17,267 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) [2022-02-19 22:06:17,298 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 [2022-02-19 22:06:17,315 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 22:06:17,320 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=true, mMcrOverapproximateWrwc=false [2022-02-19 22:06:17,320 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-19 22:06:17,370 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 27 transitions and produced 28 states. [2022-02-19 22:06:17,371 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-19 22:06:17,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:06:17,380 INFO L85 PathProgramCache]: Analyzing trace with hash 613863932, now seen corresponding path program 1 times [2022-02-19 22:06:17,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:06:17,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295434330] [2022-02-19 22:06:17,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:06:17,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:06:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:06:17,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:06:17,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:06:17,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295434330] [2022-02-19 22:06:17,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295434330] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:06:17,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:06:17,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-19 22:06:17,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803753264] [2022-02-19 22:06:17,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:06:17,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 22:06:17,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:06:17,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 22:06:17,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 22:06:17,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:06:17,578 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:06:17,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-02-19 22:06:17,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:06:17,605 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 31 transitions and produced 31 states. [2022-02-19 22:06:17,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:06:17,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 22:06:17,607 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-19 22:06:17,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:06:17,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1512727003, now seen corresponding path program 1 times [2022-02-19 22:06:17,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:06:17,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086557667] [2022-02-19 22:06:17,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:06:17,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:06:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:06:17,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:06:17,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:06:17,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086557667] [2022-02-19 22:06:17,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086557667] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 22:06:17,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 22:06:17,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-19 22:06:17,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89098507] [2022-02-19 22:06:17,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 22:06:17,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 22:06:17,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:06:17,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 22:06:17,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 22:06:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:06:17,655 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:06:17,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-02-19 22:06:17,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:06:17,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:06:17,686 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 79 transitions and produced 54 states. [2022-02-19 22:06:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:06:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 22:06:17,689 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-19 22:06:17,690 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-19 22:06:17,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 22:06:17,700 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-19 22:06:17,701 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 22:06:17,701 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 22:06:17,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 10:06:17 BasicIcfg [2022-02-19 22:06:17,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 22:06:17,704 INFO L158 Benchmark]: Toolchain (without parser) took 955.76ms. Allocated memory was 196.1MB in the beginning and 332.4MB in the end (delta: 136.3MB). Free memory was 136.4MB in the beginning and 255.4MB in the end (delta: -119.0MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. [2022-02-19 22:06:17,704 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 22:06:17,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.89ms. Allocated memory was 196.1MB in the beginning and 332.4MB in the end (delta: 136.3MB). Free memory was 136.2MB in the beginning and 301.6MB in the end (delta: -165.4MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. [2022-02-19 22:06:17,704 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.71ms. Allocated memory is still 332.4MB. Free memory was 301.6MB in the beginning and 300.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 22:06:17,705 INFO L158 Benchmark]: Boogie Preprocessor took 9.40ms. Allocated memory is still 332.4MB. Free memory was 300.0MB in the beginning and 299.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 22:06:17,705 INFO L158 Benchmark]: RCFGBuilder took 188.05ms. Allocated memory is still 332.4MB. Free memory was 298.9MB in the beginning and 288.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-19 22:06:17,705 INFO L158 Benchmark]: TraceAbstraction took 527.58ms. Allocated memory is still 332.4MB. Free memory was 287.4MB in the beginning and 255.4MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-02-19 22:06:17,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 194.89ms. Allocated memory was 196.1MB in the beginning and 332.4MB in the end (delta: 136.3MB). Free memory was 136.2MB in the beginning and 301.6MB in the end (delta: -165.4MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.71ms. Allocated memory is still 332.4MB. Free memory was 301.6MB in the beginning and 300.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.40ms. Allocated memory is still 332.4MB. Free memory was 300.0MB in the beginning and 299.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 188.05ms. Allocated memory is still 332.4MB. Free memory was 298.9MB in the beginning and 288.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 527.58ms. Allocated memory is still 332.4MB. Free memory was 287.4MB in the beginning and 255.4MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. 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: 36]: 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, 39 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-19 22:06:17,731 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 [2022-02-19 22:06:17,934 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...