/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-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 03:19:18,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 03:19:18,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 03:19:18,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 03:19:18,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 03:19:18,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 03:19:18,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 03:19:18,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 03:19:18,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 03:19:18,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 03:19:18,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 03:19:18,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 03:19:18,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 03:19:18,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 03:19:18,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 03:19:18,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 03:19:18,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 03:19:18,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 03:19:18,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 03:19:18,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 03:19:18,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 03:19:18,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 03:19:18,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 03:19:18,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 03:19:18,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 03:19:18,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 03:19:18,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 03:19:18,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 03:19:18,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 03:19:18,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 03:19:18,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 03:19:18,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 03:19:18,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 03:19:18,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 03:19:18,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 03:19:18,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 03:19:18,492 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 [2021-03-26 03:19:18,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 03:19:18,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 03:19:18,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 03:19:18,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 03:19:18,530 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 03:19:18,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 03:19:18,531 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 03:19:18,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 03:19:18,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 03:19:18,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 03:19:18,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 03:19:18,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 03:19:18,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 03:19:18,533 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 03:19:18,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 03:19:18,533 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 03:19:18,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 03:19:18,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 03:19:18,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 03:19:18,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 03:19:18,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 03:19:18,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 03:19:18,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 03:19:18,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 03:19:18,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 03:19:18,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 03:19:18,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 03:19:18,535 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 03:19:18,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 03:19:18,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 03:19:18,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 03:19:18,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 03:19:18,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 03:19:18,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 03:19:18,870 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 03:19:18,871 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 03:19:18,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2021-03-26 03:19:18,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9f5a3db/8824cdd22eb1468b8cafa9b7afec3b1d/FLAG1815f1773 [2021-03-26 03:19:19,391 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 03:19:19,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2021-03-26 03:19:19,392 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-26 03:19:19,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9f5a3db/8824cdd22eb1468b8cafa9b7afec3b1d/FLAG1815f1773 [2021-03-26 03:19:19,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9f5a3db/8824cdd22eb1468b8cafa9b7afec3b1d [2021-03-26 03:19:19,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 03:19:19,757 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 03:19:19,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 03:19:19,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 03:19:19,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 03:19:19,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45ae952d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19, skipping insertion in model container [2021-03-26 03:19:19,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 03:19:19,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 03:19:19,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 03:19:19,887 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 03:19:19,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 03:19:19,905 INFO L208 MainTranslator]: Completed translation [2021-03-26 03:19:19,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19 WrapperNode [2021-03-26 03:19:19,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 03:19:19,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 03:19:19,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 03:19:19,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 03:19:19,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 03:19:19,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 03:19:19,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 03:19:19,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 03:19:19,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (1/1) ... [2021-03-26 03:19:19,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 03:19:19,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 03:19:19,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 03:19:19,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 03:19:19,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (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 [2021-03-26 03:19:20,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 03:19:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 03:19:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 03:19:20,062 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-26 03:19:20,062 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-26 03:19:20,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 03:19:20,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 03:19:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 03:19:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 03:19:20,066 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 03:19:20,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 03:19:20,269 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-26 03:19:20,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:19:20 BoogieIcfgContainer [2021-03-26 03:19:20,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 03:19:20,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 03:19:20,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 03:19:20,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 03:19:20,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 03:19:19" (1/3) ... [2021-03-26 03:19:20,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5285cb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 03:19:20, skipping insertion in model container [2021-03-26 03:19:20,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:19:19" (2/3) ... [2021-03-26 03:19:20,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5285cb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 03:19:20, skipping insertion in model container [2021-03-26 03:19:20,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:19:20" (3/3) ... [2021-03-26 03:19:20,277 INFO L111 eAbstractionObserver]: Analyzing ICFG predecessorInAtomicBlockBug.c [2021-03-26 03:19:20,298 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 03:19:20,301 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 03:19:20,302 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 03:19:20,338 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,338 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,338 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,338 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,339 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,339 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,339 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,339 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,339 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,339 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,340 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,340 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,342 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,342 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,342 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,342 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:19:20,346 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 03:19:20,378 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 03:19:20,408 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 03:19:20,408 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 03:19:20,409 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 03:19:20,409 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 03:19:20,409 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 03:19:20,409 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 03:19:20,409 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 03:19:20,409 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 03:19:20,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 49 flow [2021-03-26 03:19:20,450 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 03:19:20,450 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:19:20,452 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. [2021-03-26 03:19:20,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 49 flow [2021-03-26 03:19:20,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2021-03-26 03:19:20,461 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:19:20,476 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 18 transitions, 39 flow [2021-03-26 03:19:20,479 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 18 transitions, 39 flow [2021-03-26 03:19:20,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 18 transitions, 39 flow [2021-03-26 03:19:20,494 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 03:19:20,495 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:19:20,495 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. [2021-03-26 03:19:20,497 INFO L142 LiptonReduction]: Number of co-enabled transitions 28 [2021-03-26 03:19:21,110 INFO L154 LiptonReduction]: Checked pairs total: 23 [2021-03-26 03:19:21,110 INFO L156 LiptonReduction]: Total number of compositions: 13 [2021-03-26 03:19:21,111 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 651 [2021-03-26 03:19:21,118 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 03:19:21,118 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:19:21,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:19:21,119 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-03-26 03:19:21,119 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:19:21,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:19:21,123 INFO L82 PathProgramCache]: Analyzing trace with hash 91942, now seen corresponding path program 1 times [2021-03-26 03:19:21,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:19:21,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71789181] [2021-03-26 03:19:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:19:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:19:21,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:19:21,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:19:21,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:19:21,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71789181] [2021-03-26 03:19:21,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:19:21,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 03:19:21,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975023165] [2021-03-26 03:19:21,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 03:19:21,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:19:21,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 03:19:21,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 03:19:21,252 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 35 [2021-03-26 03:19:21,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 5 transitions, 13 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) [2021-03-26 03:19:21,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:19:21,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 35 [2021-03-26 03:19:21,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:19:21,266 INFO L129 PetriNetUnfolder]: 1/7 cut-off events. [2021-03-26 03:19:21,266 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:19:21,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 7 events. 1/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 10. Up to 6 conditions per place. [2021-03-26 03:19:21,268 INFO L132 encePairwiseOnDemand]: 32/35 looper letters, 2 selfloop transitions, 2 changer transitions 0/5 dead transitions. [2021-03-26 03:19:21,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 5 transitions, 21 flow [2021-03-26 03:19:21,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 03:19:21,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 03:19:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2021-03-26 03:19:21,277 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2021-03-26 03:19:21,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 68 transitions. [2021-03-26 03:19:21,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 68 transitions. [2021-03-26 03:19:21,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:19:21,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 68 transitions. [2021-03-26 03:19:21,282 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) [2021-03-26 03:19:21,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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) [2021-03-26 03:19:21,286 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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) [2021-03-26 03:19:21,288 INFO L185 Difference]: Start difference. First operand has 9 places, 5 transitions, 13 flow. Second operand 3 states and 68 transitions. [2021-03-26 03:19:21,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 5 transitions, 21 flow [2021-03-26 03:19:21,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 5 transitions, 20 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 03:19:21,291 INFO L241 Difference]: Finished difference. Result has 11 places, 5 transitions, 20 flow [2021-03-26 03:19:21,293 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2021-03-26 03:19:21,293 INFO L343 CegarLoopForPetriNet]: 9 programPoint places, 2 predicate places. [2021-03-26 03:19:21,293 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:19:21,294 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 11 places, 5 transitions, 20 flow [2021-03-26 03:19:21,294 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 11 places, 5 transitions, 20 flow [2021-03-26 03:19:21,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 11 places, 5 transitions, 20 flow [2021-03-26 03:19:21,296 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2021-03-26 03:19:21,296 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:19:21,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 5 events. 0/5 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 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. [2021-03-26 03:19:21,296 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-26 03:19:21,301 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 03:19:21,302 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:19:21,302 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 03:19:21,303 INFO L480 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 20 flow [2021-03-26 03:19:21,303 INFO L481 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) [2021-03-26 03:19:21,303 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:19:21,303 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-03-26 03:19:21,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 03:19:21,304 INFO L428 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:19:21,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:19:21,304 INFO L82 PathProgramCache]: Analyzing trace with hash 2850074, now seen corresponding path program 1 times [2021-03-26 03:19:21,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:19:21,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543611647] [2021-03-26 03:19:21,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:19:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 03:19:21,316 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 03:19:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 03:19:21,323 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 03:19:21,335 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 03:19:21,336 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 03:19:21,336 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 03:19:21,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 03:19:21 BasicIcfg [2021-03-26 03:19:21,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 03:19:21,352 INFO L168 Benchmark]: Toolchain (without parser) took 1595.16 ms. Allocated memory was 255.9 MB in the beginning and 327.2 MB in the end (delta: 71.3 MB). Free memory was 234.7 MB in the beginning and 257.7 MB in the end (delta: -23.0 MB). Peak memory consumption was 48.1 MB. Max. memory is 16.0 GB. [2021-03-26 03:19:21,353 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 03:19:21,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.77 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 226.5 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-26 03:19:21,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.77 ms. Allocated memory was 255.9 MB in the beginning and 327.2 MB in the end (delta: 71.3 MB). Free memory was 226.5 MB in the beginning and 310.8 MB in the end (delta: -84.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 03:19:21,354 INFO L168 Benchmark]: Boogie Preprocessor took 20.87 ms. Allocated memory is still 327.2 MB. Free memory was 310.8 MB in the beginning and 309.9 MB in the end (delta: 868.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 03:19:21,355 INFO L168 Benchmark]: RCFGBuilder took 278.63 ms. Allocated memory is still 327.2 MB. Free memory was 309.9 MB in the beginning and 298.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-26 03:19:21,355 INFO L168 Benchmark]: TraceAbstraction took 1078.98 ms. Allocated memory is still 327.2 MB. Free memory was 298.2 MB in the beginning and 257.7 MB in the end (delta: 40.5 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.0 GB. [2021-03-26 03:19:21,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 146.77 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 226.5 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 61.77 ms. Allocated memory was 255.9 MB in the beginning and 327.2 MB in the end (delta: 71.3 MB). Free memory was 226.5 MB in the beginning and 310.8 MB in the end (delta: -84.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.87 ms. Allocated memory is still 327.2 MB. Free memory was 310.8 MB in the beginning and 309.9 MB in the end (delta: 868.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 278.63 ms. Allocated memory is still 327.2 MB. Free memory was 309.9 MB in the beginning and 298.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1078.98 ms. Allocated memory is still 327.2 MB. Free memory was 298.2 MB in the beginning and 257.7 MB in the end (delta: 40.5 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 631.0ms, 22 PlacesBefore, 9 PlacesAfterwards, 18 TransitionsBefore, 5 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8ms, 11 PlacesBefore, 11 PlacesAfterwards, 5 TransitionsBefore, 5 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, 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: 1.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 933.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 45.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 707.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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: 4.3ms SsaConstructionTime, 20.7ms SatisfiabilityAnalysisTime, 33.2ms 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...