/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/regression/atomic/16-goto-outside.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:39:41,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:39:41,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:39:41,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:39:41,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:39:41,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:39:41,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:39:41,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:39:41,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:39:41,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:39:41,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:39:41,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:39:41,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:39:41,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:39:41,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:39:41,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:39:41,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:39:41,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:39:41,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:39:41,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:39:41,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:39:41,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:39:41,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:39:41,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:39:41,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:39:41,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 03:39:41,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 03:39:41,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 03:39:41,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 03:39:41,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 03:39:41,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 03:39:41,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 03:39:41,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 03:39:41,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:39:41,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:39:41,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:39:41,993 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 03:39:42,019 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:39:42,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:39:42,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:39:42,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:39:42,022 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:39:42,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:39:42,022 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:39:42,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:39:42,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:39:42,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:39:42,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:39:42,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:39:42,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:39:42,024 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:39:42,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:39:42,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:39:42,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:39:42,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:39:42,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:39:42,025 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:39:42,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:39:42,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:39:42,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:39:42,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:39:42,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:39:42,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:39:42,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:39:42,027 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:39:42,027 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:39:42,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:39:42,027 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:39:42,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:39:42,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:39:42,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:39:42,420 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 03:39:42,421 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 03:39:42,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2021-04-29 03:39:42,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53da991bd/bb3f03d3933440778c7926545768c777/FLAG28613ea0a [2021-04-29 03:39:43,149 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 03:39:43,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2021-04-29 03:39:43,150 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:39:43,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53da991bd/bb3f03d3933440778c7926545768c777/FLAG28613ea0a [2021-04-29 03:39:43,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53da991bd/bb3f03d3933440778c7926545768c777 [2021-04-29 03:39:43,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:39:43,571 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 03:39:43,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 03:39:43,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 03:39:43,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 03:39:43,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b9abcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43, skipping insertion in model container [2021-04-29 03:39:43,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 03:39:43,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 03:39:43,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:39:43,749 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 03:39:43,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:39:43,775 INFO L208 MainTranslator]: Completed translation [2021-04-29 03:39:43,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43 WrapperNode [2021-04-29 03:39:43,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 03:39:43,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:39:43,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:39:43,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:39:43,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:39:43,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:39:43,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:39:43,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:39:43,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (1/1) ... [2021-04-29 03:39:43,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:39:43,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:39:43,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:39:43,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:39:43,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (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 03:39:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 03:39:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 03:39:43,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 03:39:43,932 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-04-29 03:39:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-04-29 03:39:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:39:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:39:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 03:39:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 03:39:43,937 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 03:39:44,272 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:39:44,273 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-29 03:39:44,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:39:44 BoogieIcfgContainer [2021-04-29 03:39:44,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:39:44,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:39:44,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:39:44,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:39:44,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 03:39:43" (1/3) ... [2021-04-29 03:39:44,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e52ca3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:39:44, skipping insertion in model container [2021-04-29 03:39:44,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:43" (2/3) ... [2021-04-29 03:39:44,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e52ca3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:39:44, skipping insertion in model container [2021-04-29 03:39:44,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:39:44" (3/3) ... [2021-04-29 03:39:44,302 INFO L111 eAbstractionObserver]: Analyzing ICFG 16-goto-outside.c [2021-04-29 03:39:44,319 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:39:44,325 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 03:39:44,327 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:39:44,354 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,354 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,355 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,355 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,355 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,355 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,356 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,356 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,357 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,357 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,357 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,358 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,361 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,361 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,362 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,362 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:44,365 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:39:44,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 03:39:44,433 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:39:44,433 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:39:44,433 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:39:44,434 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:39:44,434 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:39:44,434 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:39:44,434 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:39:44,434 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:39:44,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 51 flow [2021-04-29 03:39:44,516 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-04-29 03:39:44,517 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:44,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 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. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:39:44,522 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 51 flow [2021-04-29 03:39:44,537 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 41 flow [2021-04-29 03:39:44,539 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:39:44,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 19 transitions, 41 flow [2021-04-29 03:39:44,573 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 19 transitions, 41 flow [2021-04-29 03:39:44,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 19 transitions, 41 flow [2021-04-29 03:39:44,597 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-04-29 03:39:44,597 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:44,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 19 events. 0/19 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. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:39:44,602 INFO L146 LiptonReduction]: Number of co-enabled transitions 28 [2021-04-29 03:39:45,912 INFO L158 LiptonReduction]: Checked pairs total: 85 [2021-04-29 03:39:45,913 INFO L160 LiptonReduction]: Total number of compositions: 27 [2021-04-29 03:39:45,916 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1379 [2021-04-29 03:39:45,929 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-04-29 03:39:45,930 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:45,930 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:39:45,931 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 03:39:45,931 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:39:45,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:39:45,937 INFO L82 PathProgramCache]: Analyzing trace with hash 113465, now seen corresponding path program 1 times [2021-04-29 03:39:45,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:39:45,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277953975] [2021-04-29 03:39:45,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:39:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:39:46,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:39:46,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:39:46,095 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 03:39:46,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277953975] [2021-04-29 03:39:46,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:39:46,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:39:46,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751158538] [2021-04-29 03:39:46,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:39:46,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:39:46,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:39:46,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:39:46,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 50 [2021-04-29 03:39:46,132 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 03:39:46,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:39:46,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 50 [2021-04-29 03:39:46,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:39:46,170 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-29 03:39:46,170 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:46,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 27 events. 0/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 77 event pairs, 0 based on Foata normal form. 7/16 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2021-04-29 03:39:46,172 INFO L132 encePairwiseOnDemand]: 37/50 looper letters, 1 selfloop transitions, 8 changer transitions 11/21 dead transitions. [2021-04-29 03:39:46,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 73 flow [2021-04-29 03:39:46,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:39:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:39:46,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2021-04-29 03:39:46,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6133333333333333 [2021-04-29 03:39:46,187 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 92 transitions. [2021-04-29 03:39:46,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 92 transitions. [2021-04-29 03:39:46,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:39:46,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 92 transitions. [2021-04-29 03:39:46,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 03:39:46,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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 03:39:46,200 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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 03:39:46,202 INFO L185 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 3 states and 92 transitions. [2021-04-29 03:39:46,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 73 flow [2021-04-29 03:39:46,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:39:46,208 INFO L241 Difference]: Finished difference. Result has 27 places, 10 transitions, 48 flow [2021-04-29 03:39:46,210 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=10} [2021-04-29 03:39:46,211 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2021-04-29 03:39:46,211 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:39:46,211 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 10 transitions, 48 flow [2021-04-29 03:39:46,212 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 10 transitions, 48 flow [2021-04-29 03:39:46,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 16 places, 10 transitions, 48 flow [2021-04-29 03:39:46,216 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-04-29 03:39:46,216 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 03:39:46,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 16 events. 0/16 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 41 event pairs, 0 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2021-04-29 03:39:46,217 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:39:46,219 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:39:46,219 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:39:46,219 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-04-29 03:39:46,221 INFO L480 AbstractCegarLoop]: Abstraction has has 16 places, 10 transitions, 48 flow [2021-04-29 03:39:46,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 03:39:46,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:39:46,222 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 03:39:46,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:39:46,222 INFO L428 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:39:46,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:39:46,223 INFO L82 PathProgramCache]: Analyzing trace with hash 3517389, now seen corresponding path program 1 times [2021-04-29 03:39:46,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:39:46,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210749957] [2021-04-29 03:39:46,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:39:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:39:46,241 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:39:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:39:46,263 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:39:46,288 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:39:46,288 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:39:46,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:39:46,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:39:46 BasicIcfg [2021-04-29 03:39:46,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:39:46,313 INFO L168 Benchmark]: Toolchain (without parser) took 2785.17 ms. Allocated memory is still 312.5 MB. Free memory was 285.9 MB in the beginning and 257.3 MB in the end (delta: 28.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:46,314 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 312.5 MB. Free memory was 283.5 MB in the beginning and 283.4 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:39:46,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.99 ms. Allocated memory is still 312.5 MB. Free memory was 282.6 MB in the beginning and 274.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:46,315 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.93 ms. Allocated memory is still 312.5 MB. Free memory was 274.1 MB in the beginning and 272.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:39:46,316 INFO L168 Benchmark]: Boogie Preprocessor took 20.21 ms. Allocated memory is still 312.5 MB. Free memory was 272.8 MB in the beginning and 271.9 MB in the end (delta: 881.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:46,317 INFO L168 Benchmark]: RCFGBuilder took 448.65 ms. Allocated memory is still 312.5 MB. Free memory was 271.7 MB in the beginning and 290.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:46,317 INFO L168 Benchmark]: TraceAbstraction took 2027.75 ms. Allocated memory is still 312.5 MB. Free memory was 290.6 MB in the beginning and 257.3 MB in the end (delta: 33.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:46,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 312.5 MB. Free memory was 283.5 MB in the beginning and 283.4 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 202.99 ms. Allocated memory is still 312.5 MB. Free memory was 282.6 MB in the beginning and 274.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.93 ms. Allocated memory is still 312.5 MB. Free memory was 274.1 MB in the beginning and 272.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.21 ms. Allocated memory is still 312.5 MB. Free memory was 272.8 MB in the beginning and 271.9 MB in the end (delta: 881.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 448.65 ms. Allocated memory is still 312.5 MB. Free memory was 271.7 MB in the beginning and 290.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2027.75 ms. Allocated memory is still 312.5 MB. Free memory was 290.6 MB in the beginning and 257.3 MB in the end (delta: 33.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1339.9ms, 23 PlacesBefore, 25 PlacesAfterwards, 19 TransitionsBefore, 21 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, 85 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 17, positive conditional: 0, positive unconditional: 17, 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: 23, positive: 17, positive conditional: 0, positive unconditional: 17, 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: 23, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 53, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 17, Positive conditional cache size: 17, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4ms, 27 PlacesBefore, 16 PlacesAfterwards, 10 TransitionsBefore, 10 TransitionsAfterwards, 0 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): 23, Positive cache size: 17, Positive conditional cache size: 17, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - CounterExampleResult [Line: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 0; [L16] 0 int y; [L24] 0 pthread_t threadId; [L25] FCALL, FORK 0 pthread_create(&threadId, NULL, & foo, NULL) VAL [arg={0:0}, x=0, y=0] [L28] 0 x = x + 1 [L29] COND TRUE 0 x != y VAL [arg={0:0}, x=1, y=0] [L19] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=1, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 1869.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 94.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1489.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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: 6.0ms SsaConstructionTime, 32.4ms SatisfiabilityAnalysisTime, 47.1ms 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...