/usr/bin/java -Xmx16000000000 -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-DelaySleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/17-pthread_exit.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 14:41:13,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 14:41:13,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 14:41:13,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 14:41:13,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 14:41:13,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 14:41:13,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 14:41:13,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 14:41:13,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 14:41:13,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 14:41:13,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 14:41:13,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 14:41:13,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 14:41:13,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 14:41:13,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 14:41:13,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 14:41:13,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-06 14:41:13,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 14:41:13,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 14:41:13,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 14:41:13,164 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-DelaySleep-NoLbe-Random42.epf [2021-06-06 14:41:13,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 14:41:13,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 14:41:13,186 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 14:41:13,186 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 14:41:13,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 14:41:13,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 14:41:13,188 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 14:41:13,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 14:41:13,188 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 14:41:13,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 14:41:13,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 14:41:13,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 14:41:13,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 14:41:13,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 14:41:13,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 14:41:13,189 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 14:41:13,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 14:41:13,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 14:41:13,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 14:41:13,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 14:41:13,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 14:41:13,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 14:41:13,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 14:41:13,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 14:41:13,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 14:41:13,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 14:41:13,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 14:41:13,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 14:41:13,190 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 14:41:13,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 14:41:13,191 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 14:41:13,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 14:41:13,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 14:41:13,191 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 14:41:13,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 14:41:13,191 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 14:41:13,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 14:41:13,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 14:41:13,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 14:41:13,498 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-06 14:41:13,500 INFO L275 PluginConnector]: CDTParser initialized [2021-06-06 14:41:13,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/17-pthread_exit.c [2021-06-06 14:41:13,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c778197b/a4a5e171320545568f9633c4f02e229c/FLAG316c61a61 [2021-06-06 14:41:13,878 INFO L306 CDTParser]: Found 1 translation units. [2021-06-06 14:41:13,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/17-pthread_exit.c [2021-06-06 14:41:13,880 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-06 14:41:13,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c778197b/a4a5e171320545568f9633c4f02e229c/FLAG316c61a61 [2021-06-06 14:41:14,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c778197b/a4a5e171320545568f9633c4f02e229c [2021-06-06 14:41:14,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 14:41:14,290 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-06 14:41:14,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-06 14:41:14,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-06 14:41:14,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-06 14:41:14,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37617f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14, skipping insertion in model container [2021-06-06 14:41:14,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-06 14:41:14,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-06 14:41:14,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-06 14:41:14,481 INFO L203 MainTranslator]: Completed pre-run [2021-06-06 14:41:14,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-06 14:41:14,505 INFO L208 MainTranslator]: Completed translation [2021-06-06 14:41:14,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14 WrapperNode [2021-06-06 14:41:14,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-06 14:41:14,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 14:41:14,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 14:41:14,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 14:41:14,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 14:41:14,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 14:41:14,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 14:41:14,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 14:41:14,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (1/1) ... [2021-06-06 14:41:14,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 14:41:14,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 14:41:14,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 14:41:14,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 14:41:14,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (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 [2021-06-06 14:41:14,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-06 14:41:14,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-06 14:41:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-06 14:41:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-06 14:41:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-06 14:41:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 14:41:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 14:41:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-06 14:41:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-06 14:41:14,626 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 14:41:14,878 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 14:41:14,878 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-06 14:41:14,879 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: fooEXIT is neither atomic block end nor error location. [2021-06-06 14:41:14,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 02:41:14 BoogieIcfgContainer [2021-06-06 14:41:14,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 14:41:14,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 14:41:14,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 14:41:14,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 14:41:14,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.06 02:41:14" (1/3) ... [2021-06-06 14:41:14,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1f944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 02:41:14, skipping insertion in model container [2021-06-06 14:41:14,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 02:41:14" (2/3) ... [2021-06-06 14:41:14,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1f944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 02:41:14, skipping insertion in model container [2021-06-06 14:41:14,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 02:41:14" (3/3) ... [2021-06-06 14:41:14,885 INFO L111 eAbstractionObserver]: Analyzing ICFG 17-pthread_exit.c [2021-06-06 14:41:14,890 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 14:41:14,890 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 14:41:14,890 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 14:41:14,891 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 14:41:14,906 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,907 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,907 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,907 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,907 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,907 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,908 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,908 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,908 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,908 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,908 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,909 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,909 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,909 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,909 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,909 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,911 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,911 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,911 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,911 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:41:14,928 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-06 14:41:14,947 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 [2021-06-06 14:41:15,020 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 14:41:15,020 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 14:41:15,020 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 14:41:15,021 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 14:41:15,021 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 14:41:15,021 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 14:41:15,021 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 14:41:15,021 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 14:41:15,054 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:41:15,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:41:15,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1509984702, now seen corresponding path program 1 times [2021-06-06 14:41:15,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:41:15,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405313139] [2021-06-06 14:41:15,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:41:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:41:15,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:41:15,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:41:15,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405313139] [2021-06-06 14:41:15,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405313139] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:41:15,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:41:15,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 14:41:15,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707171441] [2021-06-06 14:41:15,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 14:41:15,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:41:15,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 14:41:15,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-06 14:41:15,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:15,290 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:41:15,291 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) [2021-06-06 14:41:15,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:41:15,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:41:15,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 14:41:15,414 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-06 14:41:15,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.06 02:41:15 BasicIcfg [2021-06-06 14:41:15,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-06 14:41:15,416 INFO L168 Benchmark]: Toolchain (without parser) took 1126.75 ms. Allocated memory is still 419.4 MB. Free memory was 381.4 MB in the beginning and 353.3 MB in the end (delta: 28.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.0 GB. [2021-06-06 14:41:15,417 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 419.4 MB. Free memory was 399.7 MB in the beginning and 399.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 14:41:15,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.92 ms. Allocated memory is still 419.4 MB. Free memory was 381.2 MB in the beginning and 402.6 MB in the end (delta: -21.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.0 GB. [2021-06-06 14:41:15,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.19 ms. Allocated memory is still 419.4 MB. Free memory was 402.6 MB in the beginning and 400.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-06 14:41:15,419 INFO L168 Benchmark]: Boogie Preprocessor took 20.19 ms. Allocated memory is still 419.4 MB. Free memory was 400.5 MB in the beginning and 399.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-06 14:41:15,420 INFO L168 Benchmark]: RCFGBuilder took 327.68 ms. Allocated memory is still 419.4 MB. Free memory was 399.4 MB in the beginning and 382.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-06-06 14:41:15,420 INFO L168 Benchmark]: TraceAbstraction took 534.61 ms. Allocated memory is still 419.4 MB. Free memory was 382.7 MB in the beginning and 353.3 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-06-06 14:41:15,423 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 419.4 MB. Free memory was 399.7 MB in the beginning and 399.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 211.92 ms. Allocated memory is still 419.4 MB. Free memory was 381.2 MB in the beginning and 402.6 MB in the end (delta: -21.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.19 ms. Allocated memory is still 419.4 MB. Free memory was 402.6 MB in the beginning and 400.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.19 ms. Allocated memory is still 419.4 MB. Free memory was 400.5 MB in the beginning and 399.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 327.68 ms. Allocated memory is still 419.4 MB. Free memory was 399.4 MB in the beginning and 382.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 534.61 ms. Allocated memory is still 419.4 MB. Free memory was 382.7 MB in the beginning and 353.3 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 51, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 39, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 36, positive conditional: 0, positive unconditional: 36, 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] , ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 56, positive conditional: 10, positive unconditional: 46, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 39, positive: 3, positive conditional: 0, positive unconditional: 3, 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): 39, Positive cache size: 35, Positive conditional cache size: 2, Positive unconditional cache size: 33, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, 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: 3, positive: 2, positive conditional: 2, 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: 9, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, positive: 56, positive conditional: 10, positive unconditional: 46, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 35, Positive conditional cache size: 2, Positive unconditional cache size: 33, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 0 ], Maximal queried relation: 1, 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: 436.3ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.2ms, PartialOrderReductionTime: 132.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 13.3ms SsaConstructionTime, 21.0ms SatisfiabilityAnalysisTime, 108.5ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 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...