/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/ThreadIdTest1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 22:27:33,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 22:27:33,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 22:27:33,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 22:27:33,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 22:27:33,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 22:27:33,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 22:27:33,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 22:27:33,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 22:27:33,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 22:27:33,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 22:27:33,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 22:27:33,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 22:27:33,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 22:27:33,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 22:27:33,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 22:27:33,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 22:27:33,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 22:27:33,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 22:27:33,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 22:27:33,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 22:27:33,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 22:27:33,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 22:27:33,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 22:27:33,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 22:27:33,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 22:27:33,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 22:27:33,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 22:27:33,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 22:27:33,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 22:27:33,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 22:27:33,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 22:27:33,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 22:27:33,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 22:27:33,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 22:27:33,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 22:27:33,378 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 [2021-03-11 22:27:33,413 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 22:27:33,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 22:27:33,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 22:27:33,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 22:27:33,416 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 22:27:33,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 22:27:33,417 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 22:27:33,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 22:27:33,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 22:27:33,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 22:27:33,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 22:27:33,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 22:27:33,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 22:27:33,418 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 22:27:33,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 22:27:33,418 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 22:27:33,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 22:27:33,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 22:27:33,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 22:27:33,418 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 22:27:33,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 22:27:33,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 22:27:33,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 22:27:33,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 22:27:33,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 22:27:33,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 22:27:33,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 22:27:33,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 22:27:33,420 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 22:27:33,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 22:27:33,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 22:27:33,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 22:27:33,642 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 22:27:33,642 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 22:27:33,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2021-03-11 22:27:33,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82ff6b4e/27c6bb0f24df4dc1bca7c6756080e588/FLAG455603501 [2021-03-11 22:27:34,080 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 22:27:34,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2021-03-11 22:27:34,080 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 22:27:34,080 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 22:27:34,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82ff6b4e/27c6bb0f24df4dc1bca7c6756080e588/FLAG455603501 [2021-03-11 22:27:34,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82ff6b4e/27c6bb0f24df4dc1bca7c6756080e588 [2021-03-11 22:27:34,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 22:27:34,119 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 22:27:34,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 22:27:34,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 22:27:34,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 22:27:34,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2036cf39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34, skipping insertion in model container [2021-03-11 22:27:34,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 22:27:34,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 22:27:34,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 22:27:34,280 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 22:27:34,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 22:27:34,296 INFO L208 MainTranslator]: Completed translation [2021-03-11 22:27:34,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34 WrapperNode [2021-03-11 22:27:34,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 22:27:34,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 22:27:34,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 22:27:34,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 22:27:34,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 22:27:34,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 22:27:34,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 22:27:34,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 22:27:34,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (1/1) ... [2021-03-11 22:27:34,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 22:27:34,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 22:27:34,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 22:27:34,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 22:27:34,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (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 [2021-03-11 22:27:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 22:27:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-03-11 22:27:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-03-11 22:27:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 22:27:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 22:27:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 22:27:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 22:27:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 22:27:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2021-03-11 22:27:34,385 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2021-03-11 22:27:34,386 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 22:27:34,574 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 22:27:34,574 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-11 22:27:34,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 10:27:34 BoogieIcfgContainer [2021-03-11 22:27:34,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 22:27:34,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 22:27:34,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 22:27:34,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 22:27:34,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 10:27:34" (1/3) ... [2021-03-11 22:27:34,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22dd00d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 10:27:34, skipping insertion in model container [2021-03-11 22:27:34,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 10:27:34" (2/3) ... [2021-03-11 22:27:34,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22dd00d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 10:27:34, skipping insertion in model container [2021-03-11 22:27:34,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 10:27:34" (3/3) ... [2021-03-11 22:27:34,579 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest1.c [2021-03-11 22:27:34,583 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 22:27:34,597 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 22:27:34,598 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 22:27:34,621 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,622 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,622 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,622 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,622 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,622 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,622 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,622 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,622 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,623 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,623 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,623 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,623 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,623 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,623 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,623 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,624 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,625 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,626 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,626 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,626 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,626 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,626 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,627 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,627 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,627 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,627 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,627 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,627 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,628 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,628 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,628 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,628 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,629 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,629 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,629 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,631 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,631 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,631 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,632 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,632 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,641 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,642 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,642 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,642 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,642 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 22:27:34,648 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-11 22:27:34,661 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 22:27:34,683 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 22:27:34,683 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 22:27:34,683 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 22:27:34,683 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 22:27:34,683 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 22:27:34,683 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 22:27:34,683 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 22:27:34,683 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 22:27:34,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 42 transitions, 100 flow [2021-03-11 22:27:34,724 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-03-11 22:27:34,724 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 22:27:34,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 0/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 22:27:34,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 42 transitions, 100 flow [2021-03-11 22:27:34,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 32 transitions, 76 flow [2021-03-11 22:27:34,732 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 22:27:34,737 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 32 transitions, 76 flow [2021-03-11 22:27:34,740 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 32 transitions, 76 flow [2021-03-11 22:27:34,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 76 flow [2021-03-11 22:27:34,756 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-11 22:27:34,756 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 22:27:34,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 35 events. 0/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 22:27:34,757 INFO L116 LiptonReduction]: Number of co-enabled transitions 252 [2021-03-11 22:27:35,445 INFO L131 LiptonReduction]: Checked pairs total: 556 [2021-03-11 22:27:35,446 INFO L133 LiptonReduction]: Total number of compositions: 18 [2021-03-11 22:27:35,446 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 716 [2021-03-11 22:27:35,456 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-11 22:27:35,457 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 22:27:35,457 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:27:35,457 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:27:35,457 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 22:27:35,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:27:35,463 INFO L82 PathProgramCache]: Analyzing trace with hash 451176971, now seen corresponding path program 1 times [2021-03-11 22:27:35,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:27:35,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526974872] [2021-03-11 22:27:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:27:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:27:35,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:27:35,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:27:35,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:27:35,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:27:35,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:27:35,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526974872] [2021-03-11 22:27:35,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:27:35,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 22:27:35,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909895938] [2021-03-11 22:27:35,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:27:35,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:27:35,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:27:35,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:27:35,605 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 60 [2021-03-11 22:27:35,606 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-03-11 22:27:35,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:27:35,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 60 [2021-03-11 22:27:35,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:27:35,634 INFO L129 PetriNetUnfolder]: 6/39 cut-off events. [2021-03-11 22:27:35,635 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-11 22:27:35,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 39 events. 6/39 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 98 event pairs, 4 based on Foata normal form. 6/43 useless extension candidates. Maximal degree in co-relation 50. Up to 18 conditions per place. [2021-03-11 22:27:35,639 INFO L132 encePairwiseOnDemand]: 56/60 looper letters, 8 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2021-03-11 22:27:35,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 70 flow [2021-03-11 22:27:35,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:27:35,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:27:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2021-03-11 22:27:35,653 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-03-11 22:27:35,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 135 transitions. [2021-03-11 22:27:35,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 135 transitions. [2021-03-11 22:27:35,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:27:35,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 135 transitions. [2021-03-11 22:27:35,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2021-03-11 22:27:35,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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) [2021-03-11 22:27:35,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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) [2021-03-11 22:27:35,668 INFO L185 Difference]: Start difference. First operand has 20 places, 14 transitions, 40 flow. Second operand 3 states and 135 transitions. [2021-03-11 22:27:35,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 70 flow [2021-03-11 22:27:35,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 18 transitions, 62 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 22:27:35,671 INFO L241 Difference]: Finished difference. Result has 19 places, 16 transitions, 51 flow [2021-03-11 22:27:35,673 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=19, PETRI_TRANSITIONS=16} [2021-03-11 22:27:35,673 INFO L335 CegarLoopForPetriNet]: 20 programPoint places, -1 predicate places. [2021-03-11 22:27:35,673 INFO L480 AbstractCegarLoop]: Abstraction has has 19 places, 16 transitions, 51 flow [2021-03-11 22:27:35,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-03-11 22:27:35,673 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:27:35,673 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:27:35,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 22:27:35,674 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 22:27:35,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:27:35,674 INFO L82 PathProgramCache]: Analyzing trace with hash 33848807, now seen corresponding path program 1 times [2021-03-11 22:27:35,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:27:35,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214255273] [2021-03-11 22:27:35,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:27:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 22:27:35,700 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 22:27:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 22:27:35,709 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 22:27:35,720 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 22:27:35,720 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 22:27:35,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 22:27:35,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 10:27:35 BasicIcfg [2021-03-11 22:27:35,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 22:27:35,737 INFO L168 Benchmark]: Toolchain (without parser) took 1619.61 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 234.7 MB in the beginning and 289.7 MB in the end (delta: -54.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.0 GB. [2021-03-11 22:27:35,737 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 22:27:35,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.64 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 234.1 MB in the beginning and 321.6 MB in the end (delta: -87.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-11 22:27:35,738 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.21 ms. Allocated memory is still 337.6 MB. Free memory was 321.6 MB in the beginning and 320.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 22:27:35,738 INFO L168 Benchmark]: Boogie Preprocessor took 17.87 ms. Allocated memory is still 337.6 MB. Free memory was 320.1 MB in the beginning and 318.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 22:27:35,738 INFO L168 Benchmark]: RCFGBuilder took 235.51 ms. Allocated memory is still 337.6 MB. Free memory was 318.8 MB in the beginning and 304.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-11 22:27:35,739 INFO L168 Benchmark]: TraceAbstraction took 1159.92 ms. Allocated memory is still 337.6 MB. Free memory was 304.1 MB in the beginning and 289.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.0 GB. [2021-03-11 22:27:35,740 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 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 176.64 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 234.1 MB in the beginning and 321.6 MB in the end (delta: -87.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.21 ms. Allocated memory is still 337.6 MB. Free memory was 321.6 MB in the beginning and 320.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.87 ms. Allocated memory is still 337.6 MB. Free memory was 320.1 MB in the beginning and 318.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 235.51 ms. Allocated memory is still 337.6 MB. Free memory was 318.8 MB in the beginning and 304.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1159.92 ms. Allocated memory is still 337.6 MB. Free memory was 304.1 MB in the beginning and 289.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 705.8ms, 38 PlacesBefore, 20 PlacesAfterwards, 32 TransitionsBefore, 14 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 4 FixpointIterations, 8 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 18 TotalNumberOfCompositions, 556 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 392, positive: 358, positive conditional: 0, positive unconditional: 358, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 199, positive: 180, positive conditional: 0, positive unconditional: 180, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 199, positive: 180, positive conditional: 0, positive unconditional: 180, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 74, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 392, positive: 178, positive conditional: 0, positive unconditional: 178, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 199, unknown conditional: 0, unknown unconditional: 199] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int x = 0; [L27] 0 pthread_t first_th_id; [L28] 0 pthread_t second_th_id; [L30] FCALL, FORK 0 pthread_create(&first_th_id, NULL, inc, NULL) VAL [n={0:0}, x=0] [L31] FCALL, FORK 0 pthread_create(&second_th_id, NULL, dec, NULL) VAL [n={0:0}, n={0:0}, x=0] [L22] 2 x-- VAL [n={0:0}, n={0:0}, n={0:0}, x=0, x--=0] [L33] 0 \read(first_th_id) VAL [n={0:0}, n={0:0}, n={0:0}, x=0, x--=0] [L17] 1 x++ [L18] 1 return NULL; [L33] FCALL, JOIN 1 pthread_join(first_th_id, NULL) VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=0] [L34] 0 int y = x; VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=0] [L22] 2 x-- [L23] 2 return NULL; [L36] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, \result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 1042.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 72.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 768.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=1, InterpolantAutomatonStates: 3, 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: 8.9ms SsaConstructionTime, 29.1ms SatisfiabilityAnalysisTime, 56.6ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...