/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/simpleReturn.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 19:53:06,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 19:53:06,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 19:53:06,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 19:53:06,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-14 19:53:06,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-14 19:53:06,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-14 19:53:06,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-14 19:53:06,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-14 19:53:06,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-14 19:53:06,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-14 19:53:06,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-14 19:53:06,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-14 19:53:06,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-14 19:53:06,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-14 19:53:06,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-14 19:53:06,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-14 19:53:06,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-14 19:53:06,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-14 19:53:06,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-14 19:53:06,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-14 19:53:06,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-14 19:53:06,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-14 19:53:06,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-14 19:53:06,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-14 19:53:06,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 19:53:06,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 19:53:06,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 19:53:06,467 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-06-14 19:53:06,503 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 19:53:06,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 19:53:06,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 19:53:06,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 19:53:06,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 19:53:06,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 19:53:06,506 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 19:53:06,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 19:53:06,507 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 19:53:06,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 19:53:06,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 19:53:06,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 19:53:06,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 19:53:06,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 19:53:06,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 19:53:06,508 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 19:53:06,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 19:53:06,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 19:53:06,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 19:53:06,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 19:53:06,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 19:53:06,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 19:53:06,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 19:53:06,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 19:53:06,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 19:53:06,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 19:53:06,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 19:53:06,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 19:53:06,510 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-14 19:53:06,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 19:53:06,511 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 19:53:06,511 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 19:53:06,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 19:53:06,511 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-14 19:53:06,511 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 19:53:06,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 19:53:06,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 19:53:06,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 19:53:06,839 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-14 19:53:06,839 INFO L275 PluginConnector]: CDTParser initialized [2021-06-14 19:53:06,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/simpleReturn.c [2021-06-14 19:53:06,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0350161e5/d80dafdc50ef4f478b5179f2dff3c33e/FLAGff75b5308 [2021-06-14 19:53:07,333 INFO L306 CDTParser]: Found 1 translation units. [2021-06-14 19:53:07,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/simpleReturn.c [2021-06-14 19:53:07,334 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-14 19:53:07,334 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-14 19:53:07,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0350161e5/d80dafdc50ef4f478b5179f2dff3c33e/FLAGff75b5308 [2021-06-14 19:53:07,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0350161e5/d80dafdc50ef4f478b5179f2dff3c33e [2021-06-14 19:53:07,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 19:53:07,746 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-14 19:53:07,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-14 19:53:07,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-14 19:53:07,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-14 19:53:07,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67925d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07, skipping insertion in model container [2021-06-14 19:53:07,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-14 19:53:07,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-14 19:53:07,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-14 19:53:07,889 INFO L203 MainTranslator]: Completed pre-run [2021-06-14 19:53:07,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-14 19:53:07,911 INFO L208 MainTranslator]: Completed translation [2021-06-14 19:53:07,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07 WrapperNode [2021-06-14 19:53:07,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-14 19:53:07,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 19:53:07,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 19:53:07,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 19:53:07,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 19:53:07,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 19:53:07,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 19:53:07,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 19:53:07,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (1/1) ... [2021-06-14 19:53:07,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 19:53:07,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 19:53:07,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 19:53:07,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 19:53:07,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 19:53:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-06-14 19:53:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-14 19:53:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-06-14 19:53:08,099 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-06-14 19:53:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 19:53:08,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 19:53:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-14 19:53:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-14 19:53:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-14 19:53:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-14 19:53:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-14 19:53:08,100 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 19:53:08,413 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 19:53:08,414 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-14 19:53:08,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 07:53:08 BoogieIcfgContainer [2021-06-14 19:53:08,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 19:53:08,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 19:53:08,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 19:53:08,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 19:53:08,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 07:53:07" (1/3) ... [2021-06-14 19:53:08,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f53e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 07:53:08, skipping insertion in model container [2021-06-14 19:53:08,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 07:53:07" (2/3) ... [2021-06-14 19:53:08,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f53e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 07:53:08, skipping insertion in model container [2021-06-14 19:53:08,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 07:53:08" (3/3) ... [2021-06-14 19:53:08,427 INFO L111 eAbstractionObserver]: Analyzing ICFG simpleReturn.c [2021-06-14 19:53:08,432 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 19:53:08,433 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 19:53:08,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 19:53:08,434 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 19:53:08,462 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,462 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,462 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,462 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,462 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,462 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,463 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,463 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,463 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,463 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,463 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,463 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,464 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,464 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,464 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,464 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,464 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,465 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,465 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,465 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,465 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,466 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,466 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,467 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,467 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,467 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,467 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,467 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,468 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,468 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,468 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,469 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,469 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,469 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,469 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,469 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,469 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,470 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,473 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,473 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,473 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,473 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,473 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,474 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,474 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 19:53:08,484 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-14 19:53:08,502 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 19:53:08,561 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 19:53:08,561 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 19:53:08,561 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 19:53:08,561 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 19:53:08,561 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 19:53:08,561 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 19:53:08,561 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 19:53:08,561 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 19:53:08,670 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 19:53:08,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 19:53:08,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1850675274, now seen corresponding path program 1 times [2021-06-14 19:53:08,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 19:53:08,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135508905] [2021-06-14 19:53:08,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 19:53:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 19:53:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 19:53:09,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 19:53:09,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135508905] [2021-06-14 19:53:09,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135508905] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 19:53:09,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 19:53:09,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-14 19:53:09,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280786250] [2021-06-14 19:53:09,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-14 19:53:09,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 19:53:09,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-14 19:53:09,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-06-14 19:53:09,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 19:53:09,252 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 19:53:09,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 2.0) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 19:53:09,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 19:53:10,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 19:53:10,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 19:53:10,226 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-14 19:53:10,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 07:53:10 BasicIcfg [2021-06-14 19:53:10,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-14 19:53:10,229 INFO L168 Benchmark]: Toolchain (without parser) took 2483.57 ms. Allocated memory was 183.5 MB in the beginning and 246.4 MB in the end (delta: 62.9 MB). Free memory was 145.9 MB in the beginning and 201.2 MB in the end (delta: -55.3 MB). Peak memory consumption was 8.5 MB. Max. memory is 8.0 GB. [2021-06-14 19:53:10,230 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 183.5 MB. Free memory is still 164.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-14 19:53:10,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.02 ms. Allocated memory is still 183.5 MB. Free memory was 145.7 MB in the beginning and 137.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-06-14 19:53:10,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.24 ms. Allocated memory is still 183.5 MB. Free memory was 137.0 MB in the beginning and 135.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 19:53:10,231 INFO L168 Benchmark]: Boogie Preprocessor took 54.95 ms. Allocated memory is still 183.5 MB. Free memory was 135.5 MB in the beginning and 166.6 MB in the end (delta: -31.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 8.0 GB. [2021-06-14 19:53:10,232 INFO L168 Benchmark]: RCFGBuilder took 417.52 ms. Allocated memory is still 183.5 MB. Free memory was 166.6 MB in the beginning and 149.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-06-14 19:53:10,232 INFO L168 Benchmark]: TraceAbstraction took 1811.79 ms. Allocated memory was 183.5 MB in the beginning and 246.4 MB in the end (delta: 62.9 MB). Free memory was 149.3 MB in the beginning and 201.2 MB in the end (delta: -51.8 MB). Peak memory consumption was 11.1 MB. Max. memory is 8.0 GB. [2021-06-14 19:53:10,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 183.5 MB. Free memory is still 164.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 164.02 ms. Allocated memory is still 183.5 MB. Free memory was 145.7 MB in the beginning and 137.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.24 ms. Allocated memory is still 183.5 MB. Free memory was 137.0 MB in the beginning and 135.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 54.95 ms. Allocated memory is still 183.5 MB. Free memory was 135.5 MB in the beginning and 166.6 MB in the end (delta: -31.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 417.52 ms. Allocated memory is still 183.5 MB. Free memory was 166.6 MB in the beginning and 149.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1811.79 ms. Allocated memory was 183.5 MB in the beginning and 246.4 MB in the end (delta: 62.9 MB). Free memory was 149.3 MB in the beginning and 201.2 MB in the end (delta: -51.8 MB). Peak memory consumption was 11.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 93, positive: 89, positive conditional: 28, positive unconditional: 61, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 92, positive: 89, positive conditional: 28, positive unconditional: 61, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 92, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 63, negative conditional: 12, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 92, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 2, Negative conditional cache size: 1, Negative unconditional cache size: 1, SemanticConditionEliminator.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 63, negative conditional: 12, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 2, Negative conditional cache size: 1, Negative unconditional cache size: 1, Eliminated conditions: 0 ], Maximal queried relation: 1, Independence queries for same thread: 1 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 87, Number of persistent set computation: 189, Number of trivial persistent sets: 183, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 93, positive: 89, positive conditional: 28, positive unconditional: 61, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 92, positive: 89, positive conditional: 28, positive unconditional: 61, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 92, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 63, negative conditional: 12, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 92, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 2, Negative conditional cache size: 1, Negative unconditional cache size: 1, SemanticConditionEliminator.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 63, negative conditional: 12, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 2, Negative conditional cache size: 1, Negative unconditional cache size: 1, Eliminated conditions: 0 ], Maximal queried relation: 1, Independence queries for same thread: 1 - PositiveResult [Line: 30]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 55 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1698.1ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.1ms, PartialOrderReductionTime: 1060.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.0ms SsaConstructionTime, 96.1ms SatisfiabilityAnalysisTime, 383.0ms InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 317 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! Received shutdown request...