/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/17-pthread_exit.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 16:31:21,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 16:31:21,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 16:31:21,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 16:31:21,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 16:31:21,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 16:31:21,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 16:31:21,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 16:31:21,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 16:31:21,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 16:31:21,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 16:31:21,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 16:31:21,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 16:31:21,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 16:31:21,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 16:31:21,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 16:31:21,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 16:31:21,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 16:31:21,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 16:31:21,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 16:31:21,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 16:31:21,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 16:31:21,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 16:31:21,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 16:31:21,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-16 16:31:21,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 16:31:21,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 16:31:21,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 16:31:21,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 16:31:21,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 16:31:21,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 16:31:21,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 16:31:21,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 16:31:21,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 16:31:21,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 16:31:21,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 16:31:21,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-06-16 16:31:22,016 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 16:31:22,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 16:31:22,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 16:31:22,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 16:31:22,019 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 16:31:22,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 16:31:22,019 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 16:31:22,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 16:31:22,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 16:31:22,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 16:31:22,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 16:31:22,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 16:31:22,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 16:31:22,020 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 16:31:22,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 16:31:22,021 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 16:31:22,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 16:31:22,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 16:31:22,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 16:31:22,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 16:31:22,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 16:31:22,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 16:31:22,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 16:31:22,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 16:31:22,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 16:31:22,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 16:31:22,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 16:31:22,022 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 16:31:22,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 16:31:22,023 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 16:31:22,023 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 16:31:22,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 16:31:22,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 16:31:22,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 16:31:22,348 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 16:31:22,349 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 16:31:22,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/17-pthread_exit.c [2021-06-16 16:31:22,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a66c9b3/7193bad7ef6f465fb73dc64eaaa1322d/FLAG3a4194783 [2021-06-16 16:31:22,753 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 16:31:22,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/17-pthread_exit.c [2021-06-16 16:31:22,753 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-16 16:31:22,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a66c9b3/7193bad7ef6f465fb73dc64eaaa1322d/FLAG3a4194783 [2021-06-16 16:31:23,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a66c9b3/7193bad7ef6f465fb73dc64eaaa1322d [2021-06-16 16:31:23,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 16:31:23,153 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 16:31:23,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 16:31:23,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 16:31:23,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 16:31:23,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3350a571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23, skipping insertion in model container [2021-06-16 16:31:23,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 16:31:23,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 16:31:23,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 16:31:23,330 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 16:31:23,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 16:31:23,365 INFO L208 MainTranslator]: Completed translation [2021-06-16 16:31:23,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23 WrapperNode [2021-06-16 16:31:23,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 16:31:23,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 16:31:23,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 16:31:23,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 16:31:23,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 16:31:23,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 16:31:23,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 16:31:23,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 16:31:23,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (1/1) ... [2021-06-16 16:31:23,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 16:31:23,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 16:31:23,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 16:31:23,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 16:31:23,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (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 [2021-06-16 16:31:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 16:31:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 16:31:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 16:31:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-16 16:31:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-16 16:31:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 16:31:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 16:31:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 16:31:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 16:31:23,463 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 16:31:23,630 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 16:31:23,630 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-16 16:31:23,631 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: fooEXIT is neither atomic block end nor error location. [2021-06-16 16:31:23,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 04:31:23 BoogieIcfgContainer [2021-06-16 16:31:23,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 16:31:23,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 16:31:23,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 16:31:23,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 16:31:23,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 04:31:23" (1/3) ... [2021-06-16 16:31:23,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fac1215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 04:31:23, skipping insertion in model container [2021-06-16 16:31:23,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:31:23" (2/3) ... [2021-06-16 16:31:23,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fac1215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 04:31:23, skipping insertion in model container [2021-06-16 16:31:23,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 04:31:23" (3/3) ... [2021-06-16 16:31:23,636 INFO L111 eAbstractionObserver]: Analyzing ICFG 17-pthread_exit.c [2021-06-16 16:31:23,640 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 16:31:23,640 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 16:31:23,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 16:31:23,641 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 16:31:23,653 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,654 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,654 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,654 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,654 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,654 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,654 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,654 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,655 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,655 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,655 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,655 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,655 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,655 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,655 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,656 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,657 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,657 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,657 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,657 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:31:23,659 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 16:31:23,673 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-16 16:31:23,685 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 16:31:23,685 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 16:31:23,685 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 16:31:23,685 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 16:31:23,685 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 16:31:23,685 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 16:31:23,685 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 16:31:23,685 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 16:31:23,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 42 states have (on average 1.619047619047619) internal successors, (68), 51 states have internal predecessors, (68), 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) [2021-06-16 16:31:23,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-06-16 16:31:23,741 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 16:31:23,741 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 16:31:23,741 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 16:31:23,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 16:31:23,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1509984702, now seen corresponding path program 1 times [2021-06-16 16:31:23,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 16:31:23,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853626545] [2021-06-16 16:31:23,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 16:31:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 16:31:23,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:23,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 16:31:23,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:23,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 16:31:23,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:23,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 16:31:23,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 16:31:23,948 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 16:31:23,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853626545] [2021-06-16 16:31:23,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853626545] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 16:31:23,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 16:31:23,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 16:31:23,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207003710] [2021-06-16 16:31:23,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 16:31:23,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 16:31:23,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 16:31:23,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-16 16:31:23,970 INFO L87 Difference]: Start difference. First operand has 52 states, 42 states have (on average 1.619047619047619) internal successors, (68), 51 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-06-16 16:31:24,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 16:31:24,019 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2021-06-16 16:31:24,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 16:31:24,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-06-16 16:31:24,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 16:31:24,026 INFO L225 Difference]: With dead ends: 53 [2021-06-16 16:31:24,027 INFO L226 Difference]: Without dead ends: 22 [2021-06-16 16:31:24,028 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-16 16:31:24,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-06-16 16:31:24,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-06-16 16:31:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 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) [2021-06-16 16:31:24,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-06-16 16:31:24,053 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 16 [2021-06-16 16:31:24,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 16:31:24,054 INFO L482 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-06-16 16:31:24,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-06-16 16:31:24,054 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-06-16 16:31:24,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-06-16 16:31:24,055 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 16:31:24,056 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 16:31:24,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 16:31:24,056 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 16:31:24,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 16:31:24,063 INFO L82 PathProgramCache]: Analyzing trace with hash -603643459, now seen corresponding path program 1 times [2021-06-16 16:31:24,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 16:31:24,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820295800] [2021-06-16 16:31:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 16:31:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 16:31:24,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:24,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 16:31:24,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:24,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 16:31:24,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:24,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 16:31:24,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:24,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 16:31:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 16:31:24,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 16:31:24,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820295800] [2021-06-16 16:31:24,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820295800] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 16:31:24,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 16:31:24,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-16 16:31:24,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192114947] [2021-06-16 16:31:24,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-16 16:31:24,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 16:31:24,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-16 16:31:24,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-16 16:31:24,147 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-06-16 16:31:24,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 16:31:24,173 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-06-16 16:31:24,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 16:31:24,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-06-16 16:31:24,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 16:31:24,175 INFO L225 Difference]: With dead ends: 23 [2021-06-16 16:31:24,175 INFO L226 Difference]: Without dead ends: 20 [2021-06-16 16:31:24,176 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-16 16:31:24,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-06-16 16:31:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-06-16 16:31:24,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 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) [2021-06-16 16:31:24,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2021-06-16 16:31:24,182 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 18 [2021-06-16 16:31:24,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 16:31:24,182 INFO L482 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2021-06-16 16:31:24,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-06-16 16:31:24,183 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2021-06-16 16:31:24,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-06-16 16:31:24,183 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 16:31:24,183 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 16:31:24,183 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 16:31:24,184 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 16:31:24,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 16:31:24,187 INFO L82 PathProgramCache]: Analyzing trace with hash -603553249, now seen corresponding path program 2 times [2021-06-16 16:31:24,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 16:31:24,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193554740] [2021-06-16 16:31:24,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 16:31:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 16:31:24,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:24,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 16:31:24,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:24,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 16:31:24,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:24,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 16:31:24,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:31:24,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 16:31:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 16:31:24,222 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 16:31:24,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193554740] [2021-06-16 16:31:24,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193554740] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 16:31:24,223 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 16:31:24,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-16 16:31:24,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054796888] [2021-06-16 16:31:24,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 16:31:24,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 16:31:24,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 16:31:24,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-16 16:31:24,224 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-06-16 16:31:24,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 16:31:24,233 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-06-16 16:31:24,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 16:31:24,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-06-16 16:31:24,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 16:31:24,234 INFO L225 Difference]: With dead ends: 16 [2021-06-16 16:31:24,234 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 16:31:24,234 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-16 16:31:24,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 16:31:24,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 16:31:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 16:31:24,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 16:31:24,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-06-16 16:31:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 16:31:24,235 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 16:31:24,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-06-16 16:31:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 16:31:24,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 16:31:24,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 16:31:24,236 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 16:31:24,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 04:31:24 BasicIcfg [2021-06-16 16:31:24,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 16:31:24,238 INFO L168 Benchmark]: Toolchain (without parser) took 1085.48 ms. Allocated memory is still 178.3 MB. Free memory was 139.9 MB in the beginning and 99.8 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.6 MB. Max. memory is 8.0 GB. [2021-06-16 16:31:24,239 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 178.3 MB. Free memory is still 158.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 16:31:24,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.98 ms. Allocated memory is still 178.3 MB. Free memory was 139.8 MB in the beginning and 160.6 MB in the end (delta: -20.9 MB). Peak memory consumption was 8.1 MB. Max. memory is 8.0 GB. [2021-06-16 16:31:24,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.40 ms. Allocated memory is still 178.3 MB. Free memory was 160.6 MB in the beginning and 159.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 16:31:24,240 INFO L168 Benchmark]: Boogie Preprocessor took 15.02 ms. Allocated memory is still 178.3 MB. Free memory was 159.1 MB in the beginning and 158.5 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 16:31:24,240 INFO L168 Benchmark]: RCFGBuilder took 225.86 ms. Allocated memory is still 178.3 MB. Free memory was 158.5 MB in the beginning and 143.3 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-06-16 16:31:24,240 INFO L168 Benchmark]: TraceAbstraction took 605.14 ms. Allocated memory is still 178.3 MB. Free memory was 142.8 MB in the beginning and 99.8 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2021-06-16 16:31:24,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 178.3 MB. Free memory is still 158.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 211.98 ms. Allocated memory is still 178.3 MB. Free memory was 139.8 MB in the beginning and 160.6 MB in the end (delta: -20.9 MB). Peak memory consumption was 8.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.40 ms. Allocated memory is still 178.3 MB. Free memory was 160.6 MB in the beginning and 159.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.02 ms. Allocated memory is still 178.3 MB. Free memory was 159.1 MB in the beginning and 158.5 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 225.86 ms. Allocated memory is still 178.3 MB. Free memory was 158.5 MB in the beginning and 143.3 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 605.14 ms. Allocated memory is still 178.3 MB. Free memory was 142.8 MB in the beginning and 99.8 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 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: 48, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 33, positive conditional: 0, positive unconditional: 33, 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: 36, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 36, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 36, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 36, unknown conditional: 0, unknown unconditional: 36] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Independence queries for same thread: 12 - PositiveResult [Line: 35]: 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, 31 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 552.3ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 6.6ms, AutomataDifference: 117.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 50.1ms, PartialOrderReductionTime: 43.2ms, HoareTripleCheckerStatistics: 57 SDtfs, 27 SDslu, 58 SDs, 0 SdLazy, 28 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 38.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 45.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 23.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.9ms SsaConstructionTime, 37.9ms SatisfiabilityAnalysisTime, 188.0ms InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...