/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-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 22:11:06,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 22:11:06,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 22:11:06,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 22:11:06,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 22:11:06,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 22:11:06,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 22:11:06,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 22:11:06,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 22:11:06,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 22:11:06,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 22:11:06,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 22:11:06,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 22:11:06,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 22:11:06,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 22:11:06,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 22:11:06,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 22:11:06,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 22:11:06,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 22:11:06,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 22:11:06,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 22:11:06,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 22:11:06,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 22:11:06,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 22:11:06,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 22:11:06,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 22:11:06,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 22:11:06,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 22:11:06,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 22:11:06,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 22:11:06,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 22:11:06,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 22:11:06,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 22:11:06,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 22:11:06,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 22:11:06,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 22:11:06,878 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-FA-NoLbe-keepdead.epf [2021-01-20 22:11:06,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 22:11:06,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 22:11:06,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 22:11:06,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 22:11:06,907 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 22:11:06,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 22:11:06,908 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 22:11:06,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 22:11:06,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 22:11:06,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 22:11:06,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 22:11:06,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 22:11:06,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 22:11:06,909 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 22:11:06,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 22:11:06,910 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 22:11:06,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 22:11:06,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 22:11:06,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 22:11:06,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 22:11:06,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 22:11:06,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 22:11:06,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 22:11:06,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 22:11:06,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 22:11:06,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 22:11:06,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 22:11:06,913 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 22:11:06,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 22:11:06,913 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 22:11:06,913 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 22:11:06,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 22:11:07,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 22:11:07,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 22:11:07,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 22:11:07,335 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 22:11:07,337 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 22:11:07,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-01-20 22:11:07,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aef6b7d5/cf1cf2a3b61347a0bd936eb41ff16179/FLAG0ba03de7d [2021-01-20 22:11:08,058 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 22:11:08,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-01-20 22:11:08,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aef6b7d5/cf1cf2a3b61347a0bd936eb41ff16179/FLAG0ba03de7d [2021-01-20 22:11:08,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aef6b7d5/cf1cf2a3b61347a0bd936eb41ff16179 [2021-01-20 22:11:08,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 22:11:08,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 22:11:08,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 22:11:08,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 22:11:08,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 22:11:08,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:08,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb121cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08, skipping insertion in model container [2021-01-20 22:11:08,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:08,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 22:11:08,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 22:11:08,575 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-20 22:11:08,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 22:11:08,764 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 22:11:08,780 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-20 22:11:08,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 22:11:08,936 INFO L208 MainTranslator]: Completed translation [2021-01-20 22:11:08,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08 WrapperNode [2021-01-20 22:11:08,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 22:11:08,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 22:11:08,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 22:11:08,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 22:11:08,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:08,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:08,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 22:11:08,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 22:11:08,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 22:11:08,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 22:11:08,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:08,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:08,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:08,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:09,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:09,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:09,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (1/1) ... [2021-01-20 22:11:09,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 22:11:09,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 22:11:09,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 22:11:09,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 22:11:09,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (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 [2021-01-20 22:11:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-20 22:11:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 22:11:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-01-20 22:11:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 22:11:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 22:11:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 22:11:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-01-20 22:11:09,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-01-20 22:11:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 22:11:09,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 22:11:09,100 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 22:11:09,627 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 22:11:09,627 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2021-01-20 22:11:09,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:11:09 BoogieIcfgContainer [2021-01-20 22:11:09,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 22:11:09,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 22:11:09,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 22:11:09,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 22:11:09,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 10:11:08" (1/3) ... [2021-01-20 22:11:09,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99ff9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:11:09, skipping insertion in model container [2021-01-20 22:11:09,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:11:08" (2/3) ... [2021-01-20 22:11:09,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99ff9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:11:09, skipping insertion in model container [2021-01-20 22:11:09,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:11:09" (3/3) ... [2021-01-20 22:11:09,637 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-01-20 22:11:09,652 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 22:11:09,653 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 22:11:09,657 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 22:11:09,658 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 22:11:09,686 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,687 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,687 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,687 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,688 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,688 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,688 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,688 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,688 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,689 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,689 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,689 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,689 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,690 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,690 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,690 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,691 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,691 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,691 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,691 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,692 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,692 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,692 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,692 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,693 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,693 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,693 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,693 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,695 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,696 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,696 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,696 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,696 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,697 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,697 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,697 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 22:11:09,704 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-01-20 22:11:09,718 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 22:11:09,743 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 22:11:09,744 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 22:11:09,744 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 22:11:09,744 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 22:11:09,744 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 22:11:09,744 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 22:11:09,745 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 22:11:09,745 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 22:11:09,757 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 69 transitions, 146 flow [2021-01-20 22:11:09,781 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 185 states, 183 states have (on average 1.9344262295081966) internal successors, (354), 184 states have internal predecessors, (354), 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) [2021-01-20 22:11:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 183 states have (on average 1.9344262295081966) internal successors, (354), 184 states have internal predecessors, (354), 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) [2021-01-20 22:11:09,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 22:11:09,796 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 22:11:09,797 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 22:11:09,798 INFO L429 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 22:11:09,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 22:11:09,805 INFO L82 PathProgramCache]: Analyzing trace with hash 515054767, now seen corresponding path program 1 times [2021-01-20 22:11:09,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 22:11:09,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719068427] [2021-01-20 22:11:09,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 22:11:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-20 22:11:09,983 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-20 22:11:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-20 22:11:10,034 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-20 22:11:10,092 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-20 22:11:10,093 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-01-20 22:11:10,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 22:11:10,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 10:11:10 BasicIcfg [2021-01-20 22:11:10,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 22:11:10,172 INFO L168 Benchmark]: Toolchain (without parser) took 1804.39 ms. Allocated memory is still 302.0 MB. Free memory was 276.0 MB in the beginning and 229.2 MB in the end (delta: 46.8 MB). Peak memory consumption was 48.9 MB. Max. memory is 16.0 GB. [2021-01-20 22:11:10,173 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 22:11:10,176 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.79 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 280.6 MB in the end (delta: -4.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.0 GB. [2021-01-20 22:11:10,177 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.74 ms. Allocated memory is still 302.0 MB. Free memory was 280.6 MB in the beginning and 278.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 22:11:10,178 INFO L168 Benchmark]: Boogie Preprocessor took 28.20 ms. Allocated memory is still 302.0 MB. Free memory was 278.5 MB in the beginning and 277.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 22:11:10,179 INFO L168 Benchmark]: RCFGBuilder took 614.04 ms. Allocated memory is still 302.0 MB. Free memory was 277.5 MB in the beginning and 253.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 22:11:10,180 INFO L168 Benchmark]: TraceAbstraction took 537.14 ms. Allocated memory is still 302.0 MB. Free memory was 252.3 MB in the beginning and 229.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 22:11:10,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 568.79 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 280.6 MB in the end (delta: -4.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.74 ms. Allocated memory is still 302.0 MB. Free memory was 280.6 MB in the beginning and 278.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.20 ms. Allocated memory is still 302.0 MB. Free memory was 278.5 MB in the beginning and 277.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 614.04 ms. Allocated memory is still 302.0 MB. Free memory was 277.5 MB in the beginning and 253.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 537.14 ms. Allocated memory is still 302.0 MB. Free memory was 252.3 MB in the beginning and 229.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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; VAL [lock={11:0}] [L698] 0 pthread_cond_t cond; VAL [cond={13:0}, lock={11:0}] [L699] 0 int x; VAL [cond={13:0}, lock={11:0}, x=0] [L709] 0 pthread_t t; VAL [cond={13:0}, lock={11:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [cond={13:0}, lock={11:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [cond={13:0}, lock={11:0}, x=0] [L696] COND FALSE 1 !(0) VAL [cond={13:0}, lock={11:0}, x=0] [L696] 1 __assert_fail ("0", "svc.h", 6, __extension__ __PRETTY_FUNCTION__) VAL [cond={13:0}, lock={11:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, 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=185occurred 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, 45 NumberOfCodeBlocks, 45 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...