/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-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:36:52,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:36:52,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:36:52,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:36:52,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:36:52,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:36:52,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:36:52,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:36:52,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:36:52,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:36:52,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:36:52,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:36:52,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:36:52,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:36:52,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:36:52,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:36:52,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:36:52,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:36:52,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:36:52,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:36:52,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:36:52,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:36:52,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:36:52,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:36:52,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-29 03:36:52,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-29 03:36:52,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-29 03:36:52,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-29 03:36:52,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-29 03:36:52,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-29 03:36:52,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 03:36:52,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 03:36:52,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 03:36:52,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 03:36:52,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 03:36:52,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 03:36:52,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 03:36:52,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 03:36:52,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:36:52,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:36:52,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:36:52,992 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:36:53,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:36:53,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:36:53,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:36:53,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:36:53,053 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:36:53,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:36:53,054 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:36:53,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:36:53,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:36:53,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:36:53,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:36:53,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:36:53,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:36:53,056 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:36:53,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:36:53,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:36:53,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:36:53,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:36:53,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:36:53,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:36:53,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:36:53,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:36:53,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:36:53,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:36:53,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:36:53,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:36:53,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:36:53,059 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:36:53,059 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:36:53,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:36:53,060 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:36:53,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:36:53,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:36:53,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:36:53,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 03:36:53,514 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 03:36:53,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2021-04-29 03:36:53,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f9ca8cd4/e37de0605b22412786e5bde76cec8613/FLAG406b0f544 [2021-04-29 03:36:54,166 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 03:36:54,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2021-04-29 03:36:54,167 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:36:54,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f9ca8cd4/e37de0605b22412786e5bde76cec8613/FLAG406b0f544 [2021-04-29 03:36:54,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f9ca8cd4/e37de0605b22412786e5bde76cec8613 [2021-04-29 03:36:54,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:36:54,644 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 03:36:54,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 03:36:54,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 03:36:54,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 03:36:54,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df5cbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54, skipping insertion in model container [2021-04-29 03:36:54,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 03:36:54,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 03:36:54,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:36:54,868 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 03:36:54,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:36:54,893 INFO L208 MainTranslator]: Completed translation [2021-04-29 03:36:54,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54 WrapperNode [2021-04-29 03:36:54,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 03:36:54,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:36:54,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:36:54,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:36:54,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:36:54,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:36:54,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:36:54,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:36:54,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (1/1) ... [2021-04-29 03:36:54,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:36:54,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:36:54,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:36:54,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:36:54,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (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 [2021-04-29 03:36:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 03:36:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 03:36:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 03:36:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-04-29 03:36:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-04-29 03:36:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:36:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:36:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 03:36:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 03:36:55,040 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:36:55,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:36:55,231 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-29 03:36:55,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:36:55 BoogieIcfgContainer [2021-04-29 03:36:55,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:36:55,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:36:55,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:36:55,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:36:55,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 03:36:54" (1/3) ... [2021-04-29 03:36:55,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375812dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:36:55, skipping insertion in model container [2021-04-29 03:36:55,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:36:54" (2/3) ... [2021-04-29 03:36:55,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375812dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:36:55, skipping insertion in model container [2021-04-29 03:36:55,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:36:55" (3/3) ... [2021-04-29 03:36:55,248 INFO L111 eAbstractionObserver]: Analyzing ICFG predecessorInAtomicBlockBug.c [2021-04-29 03:36:55,268 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:36:55,278 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 03:36:55,279 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:36:55,334 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,335 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,335 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,338 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,339 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,339 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,339 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,340 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,344 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,344 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,344 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,344 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,350 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,351 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,351 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,351 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:36:55,364 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:36:55,396 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 03:36:55,444 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:36:55,444 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:36:55,444 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:36:55,445 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:36:55,445 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:36:55,445 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:36:55,445 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:36:55,446 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:36:55,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 49 flow [2021-04-29 03:36:55,515 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-04-29 03:36:55,516 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:36:55,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 21 events. 0/21 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. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:36:55,518 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 49 flow [2021-04-29 03:36:55,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2021-04-29 03:36:55,527 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:36:55,552 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 18 transitions, 39 flow [2021-04-29 03:36:55,559 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 18 transitions, 39 flow [2021-04-29 03:36:55,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 18 transitions, 39 flow [2021-04-29 03:36:55,590 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-04-29 03:36:55,590 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:36:55,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:36:55,594 INFO L146 LiptonReduction]: Number of co-enabled transitions 28 [2021-04-29 03:36:56,658 INFO L158 LiptonReduction]: Checked pairs total: 91 [2021-04-29 03:36:56,658 INFO L160 LiptonReduction]: Total number of compositions: 19 [2021-04-29 03:36:56,661 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1135 [2021-04-29 03:36:56,672 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-04-29 03:36:56,672 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:36:56,673 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:36:56,674 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 03:36:56,674 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:36:56,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:36:56,680 INFO L82 PathProgramCache]: Analyzing trace with hash 97708, now seen corresponding path program 1 times [2021-04-29 03:36:56,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:36:56,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288361373] [2021-04-29 03:36:56,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:36:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:36:56,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:36:56,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:36:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:36:56,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288361373] [2021-04-29 03:36:56,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:36:56,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:36:56,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135703187] [2021-04-29 03:36:56,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:36:56,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:36:56,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:36:56,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:36:56,878 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 41 [2021-04-29 03:36:56,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 41 flow. Second operand has 3 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) [2021-04-29 03:36:56,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:36:56,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 41 [2021-04-29 03:36:56,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:36:56,916 INFO L129 PetriNetUnfolder]: 5/29 cut-off events. [2021-04-29 03:36:56,916 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:36:56,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 29 events. 5/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 81 event pairs, 5 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 36. Up to 18 conditions per place. [2021-04-29 03:36:56,919 INFO L132 encePairwiseOnDemand]: 34/41 looper letters, 6 selfloop transitions, 2 changer transitions 10/19 dead transitions. [2021-04-29 03:36:56,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 65 flow [2021-04-29 03:36:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:36:56,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:36:56,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2021-04-29 03:36:56,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6422764227642277 [2021-04-29 03:36:56,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 79 transitions. [2021-04-29 03:36:56,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 79 transitions. [2021-04-29 03:36:56,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:36:56,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 79 transitions. [2021-04-29 03:36:56,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-04-29 03:36:56,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2021-04-29 03:36:56,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2021-04-29 03:36:56,947 INFO L185 Difference]: Start difference. First operand has 23 places, 19 transitions, 41 flow. Second operand 3 states and 79 transitions. [2021-04-29 03:36:56,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 65 flow [2021-04-29 03:36:56,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:36:56,952 INFO L241 Difference]: Finished difference. Result has 25 places, 9 transitions, 28 flow [2021-04-29 03:36:56,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=28, PETRI_PLACES=25, PETRI_TRANSITIONS=9} [2021-04-29 03:36:56,955 INFO L343 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2021-04-29 03:36:56,955 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:36:56,956 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 9 transitions, 28 flow [2021-04-29 03:36:56,956 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 9 transitions, 28 flow [2021-04-29 03:36:56,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 15 places, 9 transitions, 28 flow [2021-04-29 03:36:56,960 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-04-29 03:36:56,960 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:36:56,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 9 events. 0/9 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 14 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 03:36:56,961 INFO L146 LiptonReduction]: Number of co-enabled transitions 10 [2021-04-29 03:36:56,963 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:36:56,963 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:36:56,963 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-04-29 03:36:56,965 INFO L480 AbstractCegarLoop]: Abstraction has has 15 places, 9 transitions, 28 flow [2021-04-29 03:36:56,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 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) [2021-04-29 03:36:56,965 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:36:56,965 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 03:36:56,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:36:56,966 INFO L428 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:36:56,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:36:56,967 INFO L82 PathProgramCache]: Analyzing trace with hash 3028820, now seen corresponding path program 1 times [2021-04-29 03:36:56,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:36:56,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105468210] [2021-04-29 03:36:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:36:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:36:56,983 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:36:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:36:56,993 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:36:57,014 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:36:57,014 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:36:57,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:36:57,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:36:57 BasicIcfg [2021-04-29 03:36:57,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:36:57,039 INFO L168 Benchmark]: Toolchain (without parser) took 2430.99 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 146.6 MB in the end (delta: 130.1 MB). Peak memory consumption was 133.0 MB. Max. memory is 16.0 GB. [2021-04-29 03:36:57,039 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 302.0 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:36:57,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.48 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 265.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-04-29 03:36:57,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.35 ms. Allocated memory is still 302.0 MB. Free memory was 265.0 MB in the beginning and 263.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:36:57,042 INFO L168 Benchmark]: Boogie Preprocessor took 18.96 ms. Allocated memory is still 302.0 MB. Free memory was 263.8 MB in the beginning and 262.8 MB in the end (delta: 989.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:36:57,042 INFO L168 Benchmark]: RCFGBuilder took 285.65 ms. Allocated memory is still 302.0 MB. Free memory was 262.8 MB in the beginning and 251.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-04-29 03:36:57,043 INFO L168 Benchmark]: TraceAbstraction took 1802.18 ms. Allocated memory is still 302.0 MB. Free memory was 251.4 MB in the beginning and 146.6 MB in the end (delta: 104.7 MB). Peak memory consumption was 105.8 MB. Max. memory is 16.0 GB. [2021-04-29 03:36:57,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 302.0 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 247.48 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 265.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.35 ms. Allocated memory is still 302.0 MB. Free memory was 265.0 MB in the beginning and 263.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.96 ms. Allocated memory is still 302.0 MB. Free memory was 263.8 MB in the beginning and 262.8 MB in the end (delta: 989.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 285.65 ms. Allocated memory is still 302.0 MB. Free memory was 262.8 MB in the beginning and 251.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1802.18 ms. Allocated memory is still 302.0 MB. Free memory was 251.4 MB in the beginning and 146.6 MB in the end (delta: 104.7 MB). Peak memory consumption was 105.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1099.6ms, 22 PlacesBefore, 23 PlacesAfterwards, 18 TransitionsBefore, 19 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 19 TotalNumberOfCompositions, 91 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 32, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 23, Positive conditional cache size: 23, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.9ms, 25 PlacesBefore, 15 PlacesAfterwards, 9 TransitionsBefore, 9 TransitionsAfterwards, 10 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 23, Positive conditional cache size: 23, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - CounterExampleResult [Line: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L16] 0 int x = 0; [L24] 0 pthread_t threadId; [L25] FCALL, FORK 0 pthread_create(&threadId, NULL, & foo, NULL) VAL [arg={0:0}, x=0] [L27] 0 x = x - 1 VAL [arg={0:0}, x=-1] [L19] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 1582.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 84.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1219.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, 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: 6.6ms SsaConstructionTime, 30.4ms SatisfiabilityAnalysisTime, 50.3ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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...