/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 07:13:26,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 07:13:26,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 07:13:26,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 07:13:26,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 07:13:26,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 07:13:26,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 07:13:26,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 07:13:26,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 07:13:26,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 07:13:26,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 07:13:26,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 07:13:26,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 07:13:26,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 07:13:26,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 07:13:26,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 07:13:26,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 07:13:26,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 07:13:26,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 07:13:26,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 07:13:26,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 07:13:26,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 07:13:26,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 07:13:26,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 07:13:26,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 07:13:26,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 07:13:26,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 07:13:26,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 07:13:26,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl.epf [2021-08-13 07:13:26,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 07:13:26,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 07:13:26,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 07:13:26,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 07:13:26,596 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 07:13:26,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 07:13:26,596 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 07:13:26,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 07:13:26,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 07:13:26,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 07:13:26,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 07:13:26,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 07:13:26,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 07:13:26,622 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 07:13:26,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 07:13:26,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 07:13:26,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 07:13:26,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 07:13:26,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 07:13:26,623 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 07:13:26,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 07:13:26,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 07:13:26,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 07:13:26,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 07:13:26,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 07:13:26,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 07:13:26,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 07:13:26,624 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 07:13:26,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 07:13:26,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 07:13:26,625 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 07:13:26,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 07:13:26,625 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 07:13:26,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 07:13:26,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 07:13:26,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 07:13:26,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 07:13:26,988 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 07:13:26,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-08-13 07:13:27,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ed7c11a3/9850aef365c646299672a6de5711ec3f/FLAG24d49a499 [2021-08-13 07:13:27,515 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 07:13:27,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-08-13 07:13:27,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ed7c11a3/9850aef365c646299672a6de5711ec3f/FLAG24d49a499 [2021-08-13 07:13:27,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ed7c11a3/9850aef365c646299672a6de5711ec3f [2021-08-13 07:13:27,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 07:13:27,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 07:13:27,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 07:13:27,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 07:13:27,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 07:13:27,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 07:13:27" (1/1) ... [2021-08-13 07:13:27,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225bab9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:27, skipping insertion in model container [2021-08-13 07:13:27,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 07:13:27" (1/1) ... [2021-08-13 07:13:27,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 07:13:27,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 07:13:28,046 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-13 07:13:28,198 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-08-13 07:13:28,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 07:13:28,232 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 07:13:28,255 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-13 07:13:28,284 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-08-13 07:13:28,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 07:13:28,364 INFO L208 MainTranslator]: Completed translation [2021-08-13 07:13:28,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28 WrapperNode [2021-08-13 07:13:28,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 07:13:28,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 07:13:28,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 07:13:28,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 07:13:28,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (1/1) ... [2021-08-13 07:13:28,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (1/1) ... [2021-08-13 07:13:28,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 07:13:28,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 07:13:28,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 07:13:28,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 07:13:28,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (1/1) ... [2021-08-13 07:13:28,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (1/1) ... [2021-08-13 07:13:28,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (1/1) ... [2021-08-13 07:13:28,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (1/1) ... [2021-08-13 07:13:28,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (1/1) ... [2021-08-13 07:13:28,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (1/1) ... [2021-08-13 07:13:28,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (1/1) ... [2021-08-13 07:13:28,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 07:13:28,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 07:13:28,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 07:13:28,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 07:13:28,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (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 [2021-08-13 07:13:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-13 07:13:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 07:13:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-13 07:13:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 07:13:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 07:13:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 07:13:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-08-13 07:13:28,501 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-08-13 07:13:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 07:13:28,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 07:13:28,503 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 07:13:28,772 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 07:13:28,773 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-13 07:13:28,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:13:28 BoogieIcfgContainer [2021-08-13 07:13:28,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 07:13:28,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 07:13:28,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 07:13:28,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 07:13:28,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 07:13:27" (1/3) ... [2021-08-13 07:13:28,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284672ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:13:28, skipping insertion in model container [2021-08-13 07:13:28,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:13:28" (2/3) ... [2021-08-13 07:13:28,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284672ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:13:28, skipping insertion in model container [2021-08-13 07:13:28,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:13:28" (3/3) ... [2021-08-13 07:13:28,781 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-08-13 07:13:28,786 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 07:13:28,786 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 07:13:28,787 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 07:13:28,809 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,810 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,810 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,810 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,810 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,810 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,810 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,811 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,811 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,811 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,811 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,812 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,812 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,812 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,812 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,813 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,813 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,813 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,814 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,814 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,816 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,816 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,816 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,817 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,817 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,817 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:13:28,823 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-08-13 07:13:28,843 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-13 07:13:28,860 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 07:13:28,860 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 07:13:28,860 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 07:13:28,860 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 07:13:28,861 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 07:13:28,861 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 07:13:28,861 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 07:13:28,861 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 07:13:28,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 68 transitions, 144 flow [2021-08-13 07:13:28,935 INFO L129 PetriNetUnfolder]: 3/67 cut-off events. [2021-08-13 07:13:28,940 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-13 07:13:28,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 67 events. 3/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-08-13 07:13:28,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 68 transitions, 144 flow [2021-08-13 07:13:28,948 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 61 transitions, 125 flow [2021-08-13 07:13:28,964 INFO L129 PetriNetUnfolder]: 3/58 cut-off events. [2021-08-13 07:13:28,964 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 07:13:28,964 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:13:28,965 INFO L266 CegarLoopForPetriNet]: 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] [2021-08-13 07:13:28,966 INFO L430 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 07:13:28,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:13:28,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1483348482, now seen corresponding path program 1 times [2021-08-13 07:13:28,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:13:28,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041703648] [2021-08-13 07:13:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:13:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 07:13:29,170 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 07:13:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 07:13:29,231 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 07:13:29,264 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 07:13:29,264 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 07:13:29,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 07:13:29,268 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 07:13:29,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 07:13:29 BasicIcfg [2021-08-13 07:13:29,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 07:13:29,328 INFO L168 Benchmark]: Toolchain (without parser) took 1454.55 ms. Allocated memory is still 182.5 MB. Free memory was 147.0 MB in the beginning and 144.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.0 MB. Max. memory is 8.0 GB. [2021-08-13 07:13:29,329 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 182.5 MB. Free memory is still 164.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 07:13:29,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.52 ms. Allocated memory is still 182.5 MB. Free memory was 146.8 MB in the beginning and 146.7 MB in the end (delta: 90.5 kB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-13 07:13:29,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.40 ms. Allocated memory is still 182.5 MB. Free memory was 146.7 MB in the beginning and 144.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-13 07:13:29,332 INFO L168 Benchmark]: Boogie Preprocessor took 37.19 ms. Allocated memory is still 182.5 MB. Free memory was 144.6 MB in the beginning and 143.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 07:13:29,333 INFO L168 Benchmark]: RCFGBuilder took 329.28 ms. Allocated memory is still 182.5 MB. Free memory was 143.3 MB in the beginning and 121.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-08-13 07:13:29,334 INFO L168 Benchmark]: TraceAbstraction took 549.68 ms. Allocated memory is still 182.5 MB. Free memory was 120.5 MB in the beginning and 144.5 MB in the end (delta: -24.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 07:13:29,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 182.5 MB. Free memory is still 164.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 490.52 ms. Allocated memory is still 182.5 MB. Free memory was 146.8 MB in the beginning and 146.7 MB in the end (delta: 90.5 kB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.40 ms. Allocated memory is still 182.5 MB. Free memory was 146.7 MB in the beginning and 144.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.19 ms. Allocated memory is still 182.5 MB. Free memory was 144.6 MB in the beginning and 143.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 329.28 ms. Allocated memory is still 182.5 MB. Free memory was 143.3 MB in the beginning and 121.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 549.68 ms. Allocated memory is still 182.5 MB. Free memory was 120.5 MB in the beginning and 144.5 MB in the end (delta: -24.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_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 [arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={13:0}, lock={11:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 409.0ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 87.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.8ms SsaConstructionTime, 97.9ms SatisfiabilityAnalysisTime, 0.0ms 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...