/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 14:24:46,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 14:24:46,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 14:24:46,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 14:24:46,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 14:24:46,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 14:24:46,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 14:24:46,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 14:24:46,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 14:24:46,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 14:24:46,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 14:24:46,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 14:24:46,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 14:24:46,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 14:24:46,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 14:24:46,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 14:24:46,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 14:24:46,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 14:24:46,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 14:24:46,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 14:24:46,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 14:24:46,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 14:24:46,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 14:24:46,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 14:24:46,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 14:24:46,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 14:24:46,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 14:24:46,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 14:24:46,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 14:24:46,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 14:24:46,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 14:24:46,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 14:24:46,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 14:24:46,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 14:24:46,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 14:24:46,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 14:24:46,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 14:24:46,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 14:24:46,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 14:24:46,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 14:24:46,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 14:24:46,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-11-09 14:24:46,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 14:24:46,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 14:24:46,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 14:24:46,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 14:24:46,558 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 14:24:46,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 14:24:46,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 14:24:46,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 14:24:46,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 14:24:46,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 14:24:46,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 14:24:46,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 14:24:46,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 14:24:46,561 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 14:24:46,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 14:24:46,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 14:24:46,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 14:24:46,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 14:24:46,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 14:24:46,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 14:24:46,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 14:24:46,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 14:24:46,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 14:24:46,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 14:24:46,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 14:24:46,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 14:24:46,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 14:24:46,564 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 14:24:46,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 14:24:46,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 14:24:46,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 14:24:46,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 14:24:46,983 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 14:24:46,984 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 14:24:46,985 INFO L432 ainManager$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 14:24:47,082 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f076eaf5/62c64b84226d4d99b88fff8f3e2c44be/FLAG77bf70dbb [2020-11-09 14:24:47,807 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 14:24:47,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2020-11-09 14:24:47,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f076eaf5/62c64b84226d4d99b88fff8f3e2c44be/FLAG77bf70dbb [2020-11-09 14:24:48,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f076eaf5/62c64b84226d4d99b88fff8f3e2c44be [2020-11-09 14:24:48,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 14:24:48,122 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 14:24:48,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 14:24:48,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 14:24:48,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 14:24:48,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9f5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48, skipping insertion in model container [2020-11-09 14:24:48,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 14:24:48,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 14:24:48,379 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-09 14:24:48,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 14:24:48,573 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 14:24:48,589 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-09 14:24:48,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 14:24:48,720 INFO L208 MainTranslator]: Completed translation [2020-11-09 14:24:48,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48 WrapperNode [2020-11-09 14:24:48,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 14:24:48,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 14:24:48,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 14:24:48,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 14:24:48,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 14:24:48,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 14:24:48,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 14:24:48,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 14:24:48,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (1/1) ... [2020-11-09 14:24:48,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 14:24:48,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 14:24:48,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 14:24:48,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 14:24:48,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (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 14:24:48,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 14:24:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 14:24:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-09 14:24:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 14:24:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 14:24:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 14:24:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2020-11-09 14:24:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2020-11-09 14:24:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 14:24:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 14:24:48,880 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 14:24:49,407 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 14:24:49,407 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-09 14:24:49,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:24:49 BoogieIcfgContainer [2020-11-09 14:24:49,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 14:24:49,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 14:24:49,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 14:24:49,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 14:24:49,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:24:48" (1/3) ... [2020-11-09 14:24:49,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1967eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:24:49, skipping insertion in model container [2020-11-09 14:24:49,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:24:48" (2/3) ... [2020-11-09 14:24:49,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1967eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:24:49, skipping insertion in model container [2020-11-09 14:24:49,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:24:49" (3/3) ... [2020-11-09 14:24:49,418 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2020-11-09 14:24:49,436 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 14:24:49,436 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 14:24:49,441 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 14:24:49,442 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 14:24:49,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,474 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,474 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,474 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,475 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,475 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,483 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,483 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,483 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,483 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,484 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,484 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,484 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,484 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:24:49,493 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-09 14:24:49,505 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 14:24:49,529 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 14:24:49,529 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 14:24:49,529 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 14:24:49,529 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 14:24:49,529 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 14:24:49,529 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 14:24:49,530 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 14:24:49,530 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 14:24:49,543 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 14:24:49,543 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 69 transitions, 146 flow [2020-11-09 14:24:49,547 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 69 transitions, 146 flow [2020-11-09 14:24:49,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 69 transitions, 146 flow [2020-11-09 14:24:49,594 INFO L129 PetriNetUnfolder]: 4/68 cut-off events. [2020-11-09 14:24:49,594 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-11-09 14:24:49,598 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 14:24:49,600 INFO L116 LiptonReduction]: Number of co-enabled transitions 340 [2020-11-09 14:24:52,698 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 14:24:52,882 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 14:24:53,409 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-09 14:24:53,782 WARN L194 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-11-09 14:24:53,908 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-09 14:24:54,168 WARN L194 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-11-09 14:24:54,290 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-09 14:24:54,987 WARN L194 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-11-09 14:24:55,370 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-11-09 14:24:56,039 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-11-09 14:24:56,361 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-11-09 14:24:56,364 INFO L131 LiptonReduction]: Checked pairs total: 360 [2020-11-09 14:24:56,364 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-09 14:24:56,370 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-11-09 14:24:56,377 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13 states. [2020-11-09 14:24:56,379 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-09 14:24:56,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 14:24:56,385 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:24:56,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 14:24:56,386 INFO L429 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:24:56,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:24:56,393 INFO L82 PathProgramCache]: Analyzing trace with hash 270839, now seen corresponding path program 1 times [2020-11-09 14:24:56,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:24:56,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166923144] [2020-11-09 14:24:56,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:24:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:24:56,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:24:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:24:56,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:24:56,632 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 14:24:56,633 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 14:24:56,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 14:24:56,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:24:56 BasicIcfg [2020-11-09 14:24:56,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 14:24:56,669 INFO L168 Benchmark]: Toolchain (without parser) took 8550.17 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 125.0 MB in the beginning and 118.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 75.3 MB. Max. memory is 8.0 GB. [2020-11-09 14:24:56,670 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 14:24:56,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.06 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 130.1 MB in the end (delta: -5.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2020-11-09 14:24:56,675 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.84 ms. Allocated memory is still 151.0 MB. Free memory was 130.1 MB in the beginning and 128.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 14:24:56,675 INFO L168 Benchmark]: Boogie Preprocessor took 29.09 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 126.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 14:24:56,676 INFO L168 Benchmark]: RCFGBuilder took 606.43 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 104.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 14:24:56,677 INFO L168 Benchmark]: TraceAbstraction took 7254.26 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 104.4 MB in the beginning and 118.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 52.7 MB. Max. memory is 8.0 GB. [2020-11-09 14:24:56,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 597.06 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 130.1 MB in the end (delta: -5.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.84 ms. Allocated memory is still 151.0 MB. Free memory was 130.1 MB in the beginning and 128.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.09 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 126.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 606.43 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 104.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7254.26 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 104.4 MB in the beginning and 118.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 52.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 189 VarBasedMoverChecksPositive, 6 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.8s, 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={9:0}, 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={9:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, 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...