/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 13:02:09,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 13:02:09,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 13:02:09,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 13:02:09,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 13:02:09,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 13:02:09,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 13:02:09,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 13:02:09,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 13:02:09,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 13:02:09,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 13:02:09,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 13:02:09,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 13:02:09,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 13:02:09,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 13:02:09,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 13:02:09,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 13:02:09,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 13:02:09,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 13:02:09,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 13:02:09,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 13:02:09,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 13:02:09,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 13:02:09,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 13:02:09,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 13:02:09,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 13:02:09,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 13:02:09,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 13:02:09,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 13:02:09,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 13:02:09,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 13:02:09,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 13:02:09,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 13:02:09,505 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 13:02:09,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 13:02:09,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 13:02:09,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 13:02:09,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 13:02:09,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 13:02:09,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 13:02:09,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 13:02:09,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 13:02:09,509 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 13:02:09,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 13:02:09,509 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 13:02:09,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 13:02:09,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 13:02:09,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 13:02:09,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 13:02:09,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 13:02:09,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 13:02:09,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 13:02:09,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 13:02:09,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 13:02:09,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 13:02:09,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 13:02:09,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 13:02:09,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 13:02:09,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 13:02:09,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 13:02:09,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 13:02:09,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 13:02:09,987 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 13:02:09,988 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 13:02:09,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2020-11-09 13:02:10,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2175d4430/34858384300142aeafe3b138e1d9e610/FLAGfd7f036fd [2020-11-09 13:02:10,760 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 13:02:10,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2020-11-09 13:02:10,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2175d4430/34858384300142aeafe3b138e1d9e610/FLAGfd7f036fd [2020-11-09 13:02:11,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2175d4430/34858384300142aeafe3b138e1d9e610 [2020-11-09 13:02:11,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 13:02:11,066 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 13:02:11,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 13:02:11,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 13:02:11,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 13:02:11,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc49b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11, skipping insertion in model container [2020-11-09 13:02:11,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 13:02:11,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 13:02:11,282 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-09 13:02:11,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 13:02:11,550 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 13:02:11,565 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-09 13:02:11,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 13:02:11,738 INFO L208 MainTranslator]: Completed translation [2020-11-09 13:02:11,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11 WrapperNode [2020-11-09 13:02:11,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 13:02:11,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 13:02:11,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 13:02:11,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 13:02:11,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 13:02:11,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 13:02:11,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 13:02:11,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 13:02:11,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (1/1) ... [2020-11-09 13:02:11,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 13:02:11,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 13:02:11,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 13:02:11,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 13:02:11,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (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 [2020-11-09 13:02:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 13:02:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 13:02:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-09 13:02:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 13:02:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 13:02:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 13:02:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2020-11-09 13:02:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2020-11-09 13:02:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 13:02:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 13:02:11,958 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 13:02:12,438 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 13:02:12,438 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-09 13:02:12,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:02:12 BoogieIcfgContainer [2020-11-09 13:02:12,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 13:02:12,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 13:02:12,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 13:02:12,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 13:02:12,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:02:11" (1/3) ... [2020-11-09 13:02:12,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b07c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:02:12, skipping insertion in model container [2020-11-09 13:02:12,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:02:11" (2/3) ... [2020-11-09 13:02:12,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b07c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:02:12, skipping insertion in model container [2020-11-09 13:02:12,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:02:12" (3/3) ... [2020-11-09 13:02:12,450 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2020-11-09 13:02:12,469 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 13:02:12,469 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 13:02:12,473 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 13:02:12,474 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 13:02:12,503 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,503 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,503 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,503 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,504 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,504 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,504 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,504 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,504 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,505 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,505 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,505 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,505 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,506 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,506 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,506 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,506 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,507 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,507 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,507 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,507 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,507 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,508 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,508 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,508 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,508 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,509 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,509 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,511 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,511 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,512 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,512 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,512 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,512 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,512 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,513 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:02:12,521 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-09 13:02:12,535 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 13:02:12,561 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 13:02:12,561 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 13:02:12,561 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 13:02:12,561 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 13:02:12,561 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 13:02:12,561 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 13:02:12,562 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 13:02:12,562 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 13:02:12,575 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 13:02:12,577 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 69 transitions, 146 flow [2020-11-09 13:02:12,581 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 69 transitions, 146 flow [2020-11-09 13:02:12,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 69 transitions, 146 flow [2020-11-09 13:02:12,630 INFO L129 PetriNetUnfolder]: 4/68 cut-off events. [2020-11-09 13:02:12,630 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-11-09 13:02:12,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 68 events. 4/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2020-11-09 13:02:12,636 INFO L116 LiptonReduction]: Number of co-enabled transitions 340 [2020-11-09 13:02:15,821 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 13:02:16,007 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 13:02:16,371 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-09 13:02:16,479 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 13:02:16,590 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-09 13:02:17,013 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-11-09 13:02:17,144 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-09 13:02:17,410 WARN L194 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-11-09 13:02:17,550 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-09 13:02:18,333 WARN L194 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-11-09 13:02:18,728 WARN L194 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-11-09 13:02:19,488 WARN L194 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-11-09 13:02:19,858 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-11-09 13:02:19,861 INFO L131 LiptonReduction]: Checked pairs total: 360 [2020-11-09 13:02:19,861 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-09 13:02:19,869 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-11-09 13:02:19,876 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13 states. [2020-11-09 13:02:19,878 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-09 13:02:19,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 13:02:19,883 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 13:02:19,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 13:02:19,884 INFO L429 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 13:02:19,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 13:02:19,889 INFO L82 PathProgramCache]: Analyzing trace with hash 270839, now seen corresponding path program 1 times [2020-11-09 13:02:19,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 13:02:19,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422757756] [2020-11-09 13:02:19,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 13:02:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 13:02:20,049 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 13:02:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 13:02:20,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 13:02:20,125 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 13:02:20,126 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 13:02:20,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 13:02:20,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:02:20 BasicIcfg [2020-11-09 13:02:20,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 13:02:20,165 INFO L168 Benchmark]: Toolchain (without parser) took 9101.18 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 124.8 MB in the beginning and 119.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 73.1 MB. Max. memory is 8.0 GB. [2020-11-09 13:02:20,166 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 151.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 13:02:20,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.65 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 131.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. [2020-11-09 13:02:20,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.07 ms. Allocated memory is still 151.0 MB. Free memory was 131.4 MB in the beginning and 129.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 13:02:20,169 INFO L168 Benchmark]: Boogie Preprocessor took 46.67 ms. Allocated memory is still 151.0 MB. Free memory was 129.3 MB in the beginning and 128.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 13:02:20,171 INFO L168 Benchmark]: RCFGBuilder took 565.90 ms. Allocated memory is still 151.0 MB. Free memory was 128.2 MB in the beginning and 106.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 13:02:20,173 INFO L168 Benchmark]: TraceAbstraction took 7718.58 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 105.7 MB in the beginning and 119.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. [2020-11-09 13:02:20,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 151.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 671.65 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 131.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 86.07 ms. Allocated memory is still 151.0 MB. Free memory was 131.4 MB in the beginning and 129.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.67 ms. Allocated memory is still 151.0 MB. Free memory was 129.3 MB in the beginning and 128.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 565.90 ms. Allocated memory is still 151.0 MB. Free memory was 128.2 MB in the beginning and 106.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7718.58 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 105.7 MB in the beginning and 119.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 224 VarBasedMoverChecksPositive, 7 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 7 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.2s, 69 PlacesBefore, 13 PlacesAfterwards, 69 TransitionsBefore, 10 TransitionsAfterwards, 340 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 71 TotalNumberOfCompositions, 360 MoverChecksTotal - CounterExampleResult [Line: 696]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; [L698] 0 pthread_cond_t cond; [L699] 0 int x; [L709] 0 pthread_t t; [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [cond={7:0}, lock={10:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 [L696] COND FALSE 1 !(0) [L696] 1 __assert_fail ("0", "svc.h", 6, __extension__ __PRETTY_FUNCTION__) VAL [cond={7:0}, lock={10:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...