/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-PN-NoLbe-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 07:34:58,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 07:34:58,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 07:34:59,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 07:34:59,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 07:34:59,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 07:34:59,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 07:34:59,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 07:34:59,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 07:34:59,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 07:34:59,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 07:34:59,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 07:34:59,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 07:34:59,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 07:34:59,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 07:34:59,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 07:34:59,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 07:34:59,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 07:34:59,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 07:34:59,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 07:34:59,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 07:34:59,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 07:34:59,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 07:34:59,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 07:34:59,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-13 07:34:59,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-13 07:34:59,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-13 07:34:59,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-13 07:34:59,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-13 07:34:59,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-13 07:34:59,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 07:34:59,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 07:34:59,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 07:34:59,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 07:34:59,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 07:34:59,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 07:34:59,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 07:34:59,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 07:34:59,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 07:34:59,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 07:34:59,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 07:34:59,054 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-PN-NoLbe-OGIterative-CovSimpl.epf [2021-08-13 07:34:59,075 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 07:34:59,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 07:34:59,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 07:34:59,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 07:34:59,078 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 07:34:59,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 07:34:59,078 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 07:34:59,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 07:34:59,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 07:34:59,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 07:34:59,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 07:34:59,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 07:34:59,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 07:34:59,079 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 07:34:59,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 07:34:59,079 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 07:34:59,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 07:34:59,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 07:34:59,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 07:34:59,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 07:34:59,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 07:34:59,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 07:34:59,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 07:34:59,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 07:34:59,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 07:34:59,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 07:34:59,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 07:34:59,081 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 07:34:59,081 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 07:34:59,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 07:34:59,081 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 07:34:59,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 07:34:59,082 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 07:34:59,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 07:34:59,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 07:34:59,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 07:34:59,408 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 07:34:59,409 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 07:34:59,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2021-08-13 07:34:59,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c2ef025a/edf4cab147234d20b0f7b449790cf16d/FLAG8e2e140b7 [2021-08-13 07:34:59,808 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 07:34:59,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2021-08-13 07:34:59,809 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-08-13 07:34:59,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c2ef025a/edf4cab147234d20b0f7b449790cf16d/FLAG8e2e140b7 [2021-08-13 07:34:59,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c2ef025a/edf4cab147234d20b0f7b449790cf16d [2021-08-13 07:34:59,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 07:34:59,854 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 07:34:59,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 07:34:59,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 07:34:59,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 07:34:59,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 07:34:59" (1/1) ... [2021-08-13 07:34:59,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50bca19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:34:59, skipping insertion in model container [2021-08-13 07:34:59,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 07:34:59" (1/1) ... [2021-08-13 07:34:59,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 07:34:59,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 07:34:59,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 07:34:59,999 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 07:35:00,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 07:35:00,019 INFO L208 MainTranslator]: Completed translation [2021-08-13 07:35:00,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00 WrapperNode [2021-08-13 07:35:00,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 07:35:00,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 07:35:00,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 07:35:00,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 07:35:00,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (1/1) ... [2021-08-13 07:35:00,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (1/1) ... [2021-08-13 07:35:00,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 07:35:00,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 07:35:00,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 07:35:00,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 07:35:00,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (1/1) ... [2021-08-13 07:35:00,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (1/1) ... [2021-08-13 07:35:00,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (1/1) ... [2021-08-13 07:35:00,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (1/1) ... [2021-08-13 07:35:00,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (1/1) ... [2021-08-13 07:35:00,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (1/1) ... [2021-08-13 07:35:00,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (1/1) ... [2021-08-13 07:35:00,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 07:35:00,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 07:35:00,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 07:35:00,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 07:35:00,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (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 [2021-08-13 07:35:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 07:35:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 07:35:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 07:35:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-08-13 07:35:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-08-13 07:35:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 07:35:00,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 07:35:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 07:35:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 07:35:00,200 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 07:35:00,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 07:35:00,408 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-13 07:35:00,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:35:00 BoogieIcfgContainer [2021-08-13 07:35:00,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 07:35:00,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 07:35:00,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 07:35:00,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 07:35:00,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 07:34:59" (1/3) ... [2021-08-13 07:35:00,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb0cc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:35:00, skipping insertion in model container [2021-08-13 07:35:00,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:35:00" (2/3) ... [2021-08-13 07:35:00,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb0cc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:35:00, skipping insertion in model container [2021-08-13 07:35:00,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:35:00" (3/3) ... [2021-08-13 07:35:00,415 INFO L111 eAbstractionObserver]: Analyzing ICFG 16-goto-outside.c [2021-08-13 07:35:00,419 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 07:35:00,420 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 07:35:00,420 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 07:35:00,433 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,434 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,434 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,434 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,434 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,434 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,434 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,434 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,437 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,437 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,437 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,437 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:35:00,439 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 07:35:00,455 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-13 07:35:00,471 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 07:35:00,471 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 07:35:00,471 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 07:35:00,471 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 07:35:00,471 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 07:35:00,471 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 07:35:00,471 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 07:35:00,471 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 07:35:00,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 26 transitions, 57 flow [2021-08-13 07:35:00,493 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-08-13 07:35:00,493 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 07:35:00,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-08-13 07:35:00,494 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 26 transitions, 57 flow [2021-08-13 07:35:00,497 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 22 transitions, 47 flow [2021-08-13 07:35:00,501 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-08-13 07:35:00,502 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 07:35:00,502 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:35:00,502 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:35:00,503 INFO L430 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 07:35:00,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:35:00,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1445211375, now seen corresponding path program 1 times [2021-08-13 07:35:00,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:35:00,512 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617451402] [2021-08-13 07:35:00,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:35:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:35:00,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:35:00,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:35:00,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:35:00,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:35:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:35:00,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:35:00,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617451402] [2021-08-13 07:35:00,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617451402] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:35:00,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:35:00,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 07:35:00,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737446228] [2021-08-13 07:35:00,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:35:00,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:35:00,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:35:00,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:35:00,688 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 26 [2021-08-13 07:35:00,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-08-13 07:35:00,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:35:00,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 26 [2021-08-13 07:35:00,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:35:00,727 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-08-13 07:35:00,727 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 07:35:00,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 27 events. 0/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 2/29 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-08-13 07:35:00,728 INFO L132 encePairwiseOnDemand]: 22/26 looper letters, 1 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2021-08-13 07:35:00,729 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 55 flow [2021-08-13 07:35:00,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:35:00,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:35:00,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2021-08-13 07:35:00,754 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2021-08-13 07:35:00,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 68 transitions. [2021-08-13 07:35:00,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 68 transitions. [2021-08-13 07:35:00,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:35:00,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 68 transitions. [2021-08-13 07:35:00,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2021-08-13 07:35:00,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-08-13 07:35:00,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-08-13 07:35:00,762 INFO L348 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2021-08-13 07:35:00,762 INFO L482 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 55 flow [2021-08-13 07:35:00,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-08-13 07:35:00,762 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:35:00,762 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:35:00,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 07:35:00,763 INFO L430 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 07:35:00,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:35:00,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1540451738, now seen corresponding path program 1 times [2021-08-13 07:35:00,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:35:00,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041667738] [2021-08-13 07:35:00,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:35:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 07:35:00,788 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 07:35:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 07:35:00,818 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 07:35:00,833 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 07:35:00,833 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 07:35:00,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 07:35:00,836 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 07:35:00,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 07:35:00 BasicIcfg [2021-08-13 07:35:00,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 07:35:00,867 INFO L168 Benchmark]: Toolchain (without parser) took 1012.89 ms. Allocated memory is still 174.1 MB. Free memory was 138.5 MB in the beginning and 115.7 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 8.0 GB. [2021-08-13 07:35:00,867 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 174.1 MB. Free memory was 157.0 MB in the beginning and 156.9 MB in the end (delta: 88.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 07:35:00,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.96 ms. Allocated memory is still 174.1 MB. Free memory was 138.3 MB in the beginning and 129.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-08-13 07:35:00,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.81 ms. Allocated memory is still 174.1 MB. Free memory was 129.4 MB in the beginning and 128.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 07:35:00,869 INFO L168 Benchmark]: Boogie Preprocessor took 60.49 ms. Allocated memory is still 174.1 MB. Free memory was 127.9 MB in the beginning and 157.1 MB in the end (delta: -29.2 MB). Peak memory consumption was 4.6 MB. Max. memory is 8.0 GB. [2021-08-13 07:35:00,869 INFO L168 Benchmark]: RCFGBuilder took 304.56 ms. Allocated memory is still 174.1 MB. Free memory was 157.1 MB in the beginning and 143.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-13 07:35:00,869 INFO L168 Benchmark]: TraceAbstraction took 455.26 ms. Allocated memory is still 174.1 MB. Free memory was 143.0 MB in the beginning and 115.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2021-08-13 07:35:00,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 174.1 MB. Free memory was 157.0 MB in the beginning and 156.9 MB in the end (delta: 88.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 165.96 ms. Allocated memory is still 174.1 MB. Free memory was 138.3 MB in the beginning and 129.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.81 ms. Allocated memory is still 174.1 MB. Free memory was 129.4 MB in the beginning and 128.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 60.49 ms. Allocated memory is still 174.1 MB. Free memory was 127.9 MB in the beginning and 157.1 MB in the end (delta: -29.2 MB). Peak memory consumption was 4.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 304.56 ms. Allocated memory is still 174.1 MB. Free memory was 157.1 MB in the beginning and 143.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 455.26 ms. Allocated memory is still 174.1 MB. Free memory was 143.0 MB in the beginning and 115.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 0; VAL [x=0] [L16] 0 int y; VAL [x=0, y=0] [L24] 0 pthread_t threadId; VAL [x=0, y=0] [L25] FCALL, FORK 0 pthread_create(&threadId, NULL, & foo, NULL) VAL [arg={0:0}, x=0, y=0] [L28] 0 x = x + 1 [L29] COND TRUE 0 x != y VAL [arg={0:0}, arg={0:0}, x=1, y=0] [L19] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=1, y=0] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 368.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 77.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 26.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=1, InterpolantAutomatonStates: 3, 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: 5.0ms SsaConstructionTime, 24.2ms SatisfiabilityAnalysisTime, 82.2ms InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...