/usr/bin/java -Xmx16000000000 -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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/11c-double-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 22:10:02,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 22:10:02,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 22:10:02,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 22:10:02,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 22:10:02,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 22:10:02,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 22:10:02,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 22:10:02,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 22:10:02,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 22:10:02,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 22:10:02,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 22:10:02,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 22:10:02,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 22:10:02,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 22:10:02,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 22:10:02,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 22:10:02,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 22:10:02,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 22:10:02,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 22:10:02,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 22:10:02,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 22:10:02,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 22:10:02,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 22:10:02,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 22:10:02,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 22:10:02,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 22:10:02,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 22:10:02,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 22:10:02,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 22:10:02,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 22:10:02,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 22:10:02,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 22:10:02,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 22:10:02,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 22:10:02,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 22:10:02,424 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-SemanticLbe.epf [2021-03-24 22:10:02,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 22:10:02,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 22:10:02,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 22:10:02,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 22:10:02,450 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 22:10:02,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 22:10:02,450 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 22:10:02,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 22:10:02,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 22:10:02,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 22:10:02,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 22:10:02,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 22:10:02,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 22:10:02,451 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 22:10:02,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 22:10:02,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 22:10:02,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 22:10:02,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 22:10:02,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 22:10:02,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 22:10:02,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 22:10:02,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 22:10:02,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 22:10:02,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 22:10:02,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 22:10:02,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 22:10:02,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 22:10:02,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 22:10:02,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 22:10:02,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 22:10:02,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 22:10:02,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 22:10:02,708 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 22:10:02,708 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 22:10:02,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/11c-double-end.c [2021-03-24 22:10:02,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30df9744/9b49b54908f2412092ba2973e0e4d68f/FLAG87da55325 [2021-03-24 22:10:03,116 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 22:10:03,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11c-double-end.c [2021-03-24 22:10:03,116 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-24 22:10:03,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30df9744/9b49b54908f2412092ba2973e0e4d68f/FLAG87da55325 [2021-03-24 22:10:03,152 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30df9744/9b49b54908f2412092ba2973e0e4d68f [2021-03-24 22:10:03,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 22:10:03,156 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 22:10:03,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 22:10:03,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 22:10:03,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 22:10:03,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611e6a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03, skipping insertion in model container [2021-03-24 22:10:03,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 22:10:03,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 22:10:03,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 22:10:03,269 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 22:10:03,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 22:10:03,291 INFO L208 MainTranslator]: Completed translation [2021-03-24 22:10:03,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03 WrapperNode [2021-03-24 22:10:03,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 22:10:03,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 22:10:03,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 22:10:03,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 22:10:03,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 22:10:03,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 22:10:03,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 22:10:03,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 22:10:03,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (1/1) ... [2021-03-24 22:10:03,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 22:10:03,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 22:10:03,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 22:10:03,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 22:10:03,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (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 [2021-03-24 22:10:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 22:10:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 22:10:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 22:10:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-24 22:10:03,406 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-24 22:10:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 22:10:03,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 22:10:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 22:10:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 22:10:03,408 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 22:10:03,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 22:10:03,572 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-24 22:10:03,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 10:10:03 BoogieIcfgContainer [2021-03-24 22:10:03,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 22:10:03,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 22:10:03,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 22:10:03,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 22:10:03,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 10:10:03" (1/3) ... [2021-03-24 22:10:03,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541633ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 10:10:03, skipping insertion in model container [2021-03-24 22:10:03,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:10:03" (2/3) ... [2021-03-24 22:10:03,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541633ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 10:10:03, skipping insertion in model container [2021-03-24 22:10:03,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 10:10:03" (3/3) ... [2021-03-24 22:10:03,578 INFO L111 eAbstractionObserver]: Analyzing ICFG 11c-double-end.c [2021-03-24 22:10:03,581 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 22:10:03,583 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 22:10:03,584 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 22:10:03,596 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,596 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,596 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,596 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,596 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,597 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,597 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,597 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,597 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,597 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,597 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,597 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,598 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,599 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,599 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,599 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 22:10:03,600 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 22:10:03,612 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-24 22:10:03,625 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 22:10:03,625 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 22:10:03,625 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 22:10:03,625 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 22:10:03,625 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 22:10:03,625 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 22:10:03,625 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 22:10:03,625 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 22:10:03,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 49 flow [2021-03-24 22:10:03,642 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-24 22:10:03,642 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 22:10:03,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-24 22:10:03,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 49 flow [2021-03-24 22:10:03,645 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 16 transitions, 35 flow [2021-03-24 22:10:03,646 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 22:10:03,654 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 16 transitions, 35 flow [2021-03-24 22:10:03,656 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 16 transitions, 35 flow [2021-03-24 22:10:03,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 16 transitions, 35 flow [2021-03-24 22:10:03,660 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-24 22:10:03,661 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 22:10:03,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-24 22:10:03,662 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-24 22:10:04,045 INFO L154 LiptonReduction]: Checked pairs total: 18 [2021-03-24 22:10:04,045 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-24 22:10:04,047 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 402 [2021-03-24 22:10:04,056 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-03-24 22:10:04,056 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 22:10:04,056 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:10:04,056 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-03-24 22:10:04,057 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 22:10:04,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:10:04,064 INFO L82 PathProgramCache]: Analyzing trace with hash 91975, now seen corresponding path program 1 times [2021-03-24 22:10:04,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:10:04,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394192255] [2021-03-24 22:10:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:10:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:10:04,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:10:04,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:10:04,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:10:04,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394192255] [2021-03-24 22:10:04,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:10:04,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-24 22:10:04,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202363714] [2021-03-24 22:10:04,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-24 22:10:04,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:10:04,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-24 22:10:04,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-24 22:10:04,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 34 [2021-03-24 22:10:04,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 8 places, 4 transitions, 11 flow. Second operand has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 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) [2021-03-24 22:10:04,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:10:04,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 34 [2021-03-24 22:10:04,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:10:04,178 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-03-24 22:10:04,178 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 22:10:04,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8 conditions, 3 events. 0/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/4 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-24 22:10:04,179 INFO L132 encePairwiseOnDemand]: 33/34 looper letters, 0 selfloop transitions, 0 changer transitions 3/3 dead transitions. [2021-03-24 22:10:04,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 8 places, 3 transitions, 9 flow [2021-03-24 22:10:04,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-24 22:10:04,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-24 22:10:04,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 67 transitions. [2021-03-24 22:10:04,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9852941176470589 [2021-03-24 22:10:04,186 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 67 transitions. [2021-03-24 22:10:04,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 67 transitions. [2021-03-24 22:10:04,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:10:04,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 67 transitions. [2021-03-24 22:10:04,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 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) [2021-03-24 22:10:04,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-03-24 22:10:04,193 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-03-24 22:10:04,195 INFO L185 Difference]: Start difference. First operand has 8 places, 4 transitions, 11 flow. Second operand 2 states and 67 transitions. [2021-03-24 22:10:04,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 8 places, 3 transitions, 9 flow [2021-03-24 22:10:04,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 7 places, 3 transitions, 8 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:10:04,197 INFO L241 Difference]: Finished difference. Result has 7 places, 0 transitions, 0 flow [2021-03-24 22:10:04,200 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=8, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=7, PETRI_TRANSITIONS=0} [2021-03-24 22:10:04,201 INFO L343 CegarLoopForPetriNet]: 8 programPoint places, -1 predicate places. [2021-03-24 22:10:04,201 INFO L480 AbstractCegarLoop]: Abstraction has has 7 places, 0 transitions, 0 flow [2021-03-24 22:10:04,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 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) [2021-03-24 22:10:04,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 22:10:04,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 10:10:04 BasicIcfg [2021-03-24 22:10:04,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 22:10:04,206 INFO L168 Benchmark]: Toolchain (without parser) took 1048.86 ms. Allocated memory is still 367.0 MB. Free memory was 330.2 MB in the beginning and 245.2 MB in the end (delta: 85.1 MB). Peak memory consumption was 84.9 MB. Max. memory is 16.0 GB. [2021-03-24 22:10:04,207 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 367.0 MB. Free memory was 348.5 MB in the beginning and 348.5 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 22:10:04,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.85 ms. Allocated memory is still 367.0 MB. Free memory was 330.0 MB in the beginning and 351.1 MB in the end (delta: -21.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-03-24 22:10:04,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.07 ms. Allocated memory is still 367.0 MB. Free memory was 351.1 MB in the beginning and 350.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 22:10:04,209 INFO L168 Benchmark]: Boogie Preprocessor took 14.85 ms. Allocated memory is still 367.0 MB. Free memory was 350.0 MB in the beginning and 348.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 22:10:04,210 INFO L168 Benchmark]: RCFGBuilder took 231.07 ms. Allocated memory is still 367.0 MB. Free memory was 348.7 MB in the beginning and 334.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-24 22:10:04,210 INFO L168 Benchmark]: TraceAbstraction took 630.10 ms. Allocated memory is still 367.0 MB. Free memory was 334.3 MB in the beginning and 245.2 MB in the end (delta: 89.1 MB). Peak memory consumption was 88.1 MB. Max. memory is 16.0 GB. [2021-03-24 22:10:04,215 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 367.0 MB. Free memory was 348.5 MB in the beginning and 348.5 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 133.85 ms. Allocated memory is still 367.0 MB. Free memory was 330.0 MB in the beginning and 351.1 MB in the end (delta: -21.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.07 ms. Allocated memory is still 367.0 MB. Free memory was 351.1 MB in the beginning and 350.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.85 ms. Allocated memory is still 367.0 MB. Free memory was 350.0 MB in the beginning and 348.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 231.07 ms. Allocated memory is still 367.0 MB. Free memory was 348.7 MB in the beginning and 334.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 630.10 ms. Allocated memory is still 367.0 MB. Free memory was 334.3 MB in the beginning and 245.2 MB in the end (delta: 89.1 MB). Peak memory consumption was 88.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 389.7ms, 20 PlacesBefore, 8 PlacesAfterwards, 16 TransitionsBefore, 4 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 579.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 32.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 427.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, 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: 4.3ms SsaConstructionTime, 11.2ms SatisfiabilityAnalysisTime, 24.1ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...