/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -i ../../../trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 23:56:50,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 23:56:50,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 23:56:50,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 23:56:50,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 23:56:50,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 23:56:50,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 23:56:50,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 23:56:50,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 23:56:50,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 23:56:50,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 23:56:50,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 23:56:50,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 23:56:50,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 23:56:50,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 23:56:50,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 23:56:50,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 23:56:50,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 23:56:50,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 23:56:50,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 23:56:50,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 23:56:50,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 23:56:50,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 23:56:50,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 23:56:50,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-26 23:56:50,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-26 23:56:50,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-26 23:56:50,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-26 23:56:50,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-26 23:56:50,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-26 23:56:50,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 23:56:50,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 23:56:50,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 23:56:50,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 23:56:50,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 23:56:50,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 23:56:50,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 23:56:50,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 23:56:50,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 23:56:50,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 23:56:50,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 23:56:50,573 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-Sleep-NoLbe-Delay.epf [2021-01-26 23:56:50,603 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 23:56:50,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 23:56:50,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 23:56:50,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 23:56:50,606 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 23:56:50,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 23:56:50,606 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 23:56:50,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 23:56:50,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 23:56:50,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 23:56:50,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 23:56:50,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 23:56:50,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 23:56:50,608 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 23:56:50,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 23:56:50,608 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 23:56:50,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 23:56:50,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 23:56:50,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 23:56:50,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 23:56:50,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 23:56:50,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 23:56:50,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 23:56:50,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 23:56:50,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 23:56:50,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 23:56:50,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 23:56:50,611 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 23:56:50,611 INFO L138 SettingsManager]: * Lazy Petri-NFA conversion=true [2021-01-26 23:56:50,611 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=SLEEP_SET_FA [2021-01-26 23:56:50,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 23:56:50,612 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 23:56:50,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-01-26 23:56:50,612 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 23:56:51,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 23:56:51,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 23:56:51,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 23:56:51,079 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 23:56:51,080 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 23:56:51,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2021-01-26 23:56:51,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8b5e553/005a139a43a94a64843cd231ca2543a4/FLAGe31883a51 [2021-01-26 23:56:51,806 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 23:56:51,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2021-01-26 23:56:51,807 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-01-26 23:56:51,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8b5e553/005a139a43a94a64843cd231ca2543a4/FLAGe31883a51 [2021-01-26 23:56:52,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8b5e553/005a139a43a94a64843cd231ca2543a4 [2021-01-26 23:56:52,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 23:56:52,214 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 23:56:52,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 23:56:52,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 23:56:52,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 23:56:52,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e17ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52, skipping insertion in model container [2021-01-26 23:56:52,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 23:56:52,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 23:56:52,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 23:56:52,495 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 23:56:52,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 23:56:52,525 INFO L208 MainTranslator]: Completed translation [2021-01-26 23:56:52,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52 WrapperNode [2021-01-26 23:56:52,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 23:56:52,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 23:56:52,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 23:56:52,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 23:56:52,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 23:56:52,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 23:56:52,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 23:56:52,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 23:56:52,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (1/1) ... [2021-01-26 23:56:52,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 23:56:52,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 23:56:52,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 23:56:52,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 23:56:52,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (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 [2021-01-26 23:56:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 23:56:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 23:56:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 23:56:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-01-26 23:56:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-01-26 23:56:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 23:56:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 23:56:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 23:56:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 23:56:52,679 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 23:56:52,992 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 23:56:52,993 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-26 23:56:52,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 11:56:52 BoogieIcfgContainer [2021-01-26 23:56:52,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 23:56:52,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 23:56:52,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 23:56:53,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 23:56:53,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 11:56:52" (1/3) ... [2021-01-26 23:56:53,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ebcfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 11:56:53, skipping insertion in model container [2021-01-26 23:56:53,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:56:52" (2/3) ... [2021-01-26 23:56:53,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ebcfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 11:56:53, skipping insertion in model container [2021-01-26 23:56:53,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 11:56:52" (3/3) ... [2021-01-26 23:56:53,008 INFO L111 eAbstractionObserver]: Analyzing ICFG predecessorInAtomicBlockBug.c [2021-01-26 23:56:53,029 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 23:56:53,029 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 23:56:53,033 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 23:56:53,034 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 23:56:53,092 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,092 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,092 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,093 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,095 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,095 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,096 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,096 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,098 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,099 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,101 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,101 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,104 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,104 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,105 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,107 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 23:56:53,116 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 23:56:53,131 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-26 23:56:53,170 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 23:56:53,171 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 23:56:53,171 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 23:56:53,171 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 23:56:53,171 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 23:56:53,171 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 23:56:53,172 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 23:56:53,172 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Size of Word is: 12 and size of Sequence is : 13[2021-01-26 23:56:53,196 INFO L164 SleepSetCegar]: Size of mCounterexample is: 13 [2021-01-26 23:56:53,197 INFO L165 SleepSetCegar]: [31#[ULTIMATE.startENTRY]don't care, 33#[L-1]don't care, 35#[L-1-1]don't care, 37#[L16]don't care, 39#[L-1-2]don't care, 41#[L-1-3]don't care, 43#[L24]don't care, 45#[L24-1]don't care, 47#[L25]don't care, 49#[L25-1, fooENTRY]don't care, 51#[L27, fooENTRY]don't care, 57#[L27, L19]don't care, 61#[fooErr0ASSERT_VIOLATIONASSERT, L27]don't care] [2021-01-26 23:56:53,197 INFO L429 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 23:56:53,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 23:56:53,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1436107214, now seen corresponding path program 1 times [2021-01-26 23:56:53,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 23:56:53,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702951238] [2021-01-26 23:56:53,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 23:56:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 23:56:53,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 23:56:53,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702951238] [2021-01-26 23:56:53,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 23:56:53,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-26 23:56:53,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697332009] [2021-01-26 23:56:53,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-26 23:56:53,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 23:56:53,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-26 23:56:53,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-26 23:56:53,446 INFO L481 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-01-26 23:56:53,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-01-26 23:56:53,464 WARN L160 IndependenceRelation]: Requesting ManagedScript unlock before implication check Size of Word is: 13 and size of Sequence is : 14[2021-01-26 23:56:53,525 INFO L164 SleepSetCegar]: Size of mCounterexample is: 14 [2021-01-26 23:56:53,525 INFO L165 SleepSetCegar]: [67#[ULTIMATE.startENTRY]true, 68#[L-1]true, 69#[L-1-1]true, 70#[L16]true, 71#[L-1-2](= ~x~0 0), 72#[L-1-3](= ~x~0 0), 73#[L24](= ~x~0 0), 74#[L24-1](= ~x~0 0), 75#[L25](= ~x~0 0), 76#[L25-1, fooENTRY](= ~x~0 0), 77#[L27, fooENTRY](= ~x~0 0), 80#[L27, L19](= ~x~0 0), 81#[L28, L19]true, 148#[fooErr0ASSERT_VIOLATIONASSERT, L28]true] [2021-01-26 23:56:53,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 23:56:53,526 INFO L429 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 23:56:53,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 23:56:53,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1569650099, now seen corresponding path program 1 times [2021-01-26 23:56:53,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 23:56:53,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767141567] [2021-01-26 23:56:53,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 23:56:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-26 23:56:53,547 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-26 23:56:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-26 23:56:53,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-26 23:56:53,583 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-26 23:56:53,583 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-01-26 23:56:53,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 23:56:53,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 11:56:53 BasicIcfg [2021-01-26 23:56:53,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 23:56:53,613 INFO L168 Benchmark]: Toolchain (without parser) took 1408.95 ms. Allocated memory is still 302.0 MB. Free memory was 275.9 MB in the beginning and 268.6 MB in the end (delta: 7.3 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. [2021-01-26 23:56:53,614 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 23:56:53,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.83 ms. Allocated memory is still 302.0 MB. Free memory was 274.8 MB in the beginning and 266.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-01-26 23:56:53,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.20 ms. Allocated memory is still 302.0 MB. Free memory was 266.3 MB in the beginning and 264.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 23:56:53,617 INFO L168 Benchmark]: Boogie Preprocessor took 22.79 ms. Allocated memory is still 302.0 MB. Free memory was 264.9 MB in the beginning and 264.0 MB in the end (delta: 911.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 23:56:53,618 INFO L168 Benchmark]: RCFGBuilder took 405.89 ms. Allocated memory is still 302.0 MB. Free memory was 264.0 MB in the beginning and 253.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-01-26 23:56:53,619 INFO L168 Benchmark]: TraceAbstraction took 611.52 ms. Allocated memory is still 302.0 MB. Free memory was 252.8 MB in the beginning and 268.6 MB in the end (delta: -15.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 23:56:53,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 306.83 ms. Allocated memory is still 302.0 MB. Free memory was 274.8 MB in the beginning and 266.3 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 38.20 ms. Allocated memory is still 302.0 MB. Free memory was 266.3 MB in the beginning and 264.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.79 ms. Allocated memory is still 302.0 MB. Free memory was 264.9 MB in the beginning and 264.0 MB in the end (delta: 911.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 405.89 ms. Allocated memory is still 302.0 MB. Free memory was 264.0 MB in the beginning and 253.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 611.52 ms. Allocated memory is still 302.0 MB. Free memory was 252.8 MB in the beginning and 268.6 MB in the end (delta: -15.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L16] 0 int x = 0; VAL [x=0] [L24] 0 pthread_t threadId; VAL [x=0] [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}, 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. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 297 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...