/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/02-atomic-function.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 16:30:42,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 16:30:42,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 16:30:42,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 16:30:42,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 16:30:42,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 16:30:42,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 16:30:42,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 16:30:42,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 16:30:42,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 16:30:42,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 16:30:42,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 16:30:42,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 16:30:42,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 16:30:42,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 16:30:42,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 16:30:42,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 16:30:42,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 16:30:42,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 16:30:42,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 16:30:42,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 16:30:42,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 16:30:42,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 16:30:42,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 16:30:42,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 16:30:42,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 16:30:42,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 16:30:42,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 16:30:42,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 16:30:42,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 16:30:42,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 16:30:42,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 16:30:42,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 16:30:42,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 16:30:42,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 16:30:42,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 16:30:42,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 16:30:42,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 16:30:42,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 16:30:42,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 16:30:42,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 16:30:42,474 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-06-16 16:30:42,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 16:30:42,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 16:30:42,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 16:30:42,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 16:30:42,519 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 16:30:42,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 16:30:42,519 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 16:30:42,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 16:30:42,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 16:30:42,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 16:30:42,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 16:30:42,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 16:30:42,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 16:30:42,520 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 16:30:42,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 16:30:42,521 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 16:30:42,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 16:30:42,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 16:30:42,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 16:30:42,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 16:30:42,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 16:30:42,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 16:30:42,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 16:30:42,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 16:30:42,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 16:30:42,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 16:30:42,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 16:30:42,523 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 16:30:42,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 16:30:42,523 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 16:30:42,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 16:30:42,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 16:30:42,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 16:30:42,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 16:30:42,852 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 16:30:42,854 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 16:30:42,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/02-atomic-function.c [2021-06-16 16:30:42,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0700152f/443285e079d44fc0bd7443266301067b/FLAGfb18e0188 [2021-06-16 16:30:43,312 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 16:30:43,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/02-atomic-function.c [2021-06-16 16:30:43,313 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-16 16:30:43,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0700152f/443285e079d44fc0bd7443266301067b/FLAGfb18e0188 [2021-06-16 16:30:43,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0700152f/443285e079d44fc0bd7443266301067b [2021-06-16 16:30:43,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 16:30:43,727 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 16:30:43,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 16:30:43,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 16:30:43,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 16:30:43,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:43,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b04181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43, skipping insertion in model container [2021-06-16 16:30:43,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:43,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 16:30:43,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 16:30:43,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 16:30:43,888 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 16:30:43,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 16:30:43,912 INFO L208 MainTranslator]: Completed translation [2021-06-16 16:30:43,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43 WrapperNode [2021-06-16 16:30:43,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 16:30:43,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 16:30:43,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 16:30:43,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 16:30:43,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:43,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:43,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 16:30:43,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 16:30:43,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 16:30:43,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 16:30:43,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:43,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:43,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:43,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:43,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:43,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:43,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (1/1) ... [2021-06-16 16:30:44,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 16:30:44,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 16:30:44,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 16:30:44,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 16:30:44,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (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 [2021-06-16 16:30:44,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 16:30:44,080 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-16 16:30:44,080 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-16 16:30:44,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 16:30:44,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 16:30:44,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 16:30:44,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 16:30:44,083 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 16:30:44,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 16:30:44,366 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-16 16:30:44,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 04:30:44 BoogieIcfgContainer [2021-06-16 16:30:44,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 16:30:44,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 16:30:44,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 16:30:44,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 16:30:44,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 04:30:43" (1/3) ... [2021-06-16 16:30:44,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5413cfb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 04:30:44, skipping insertion in model container [2021-06-16 16:30:44,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 04:30:43" (2/3) ... [2021-06-16 16:30:44,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5413cfb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 04:30:44, skipping insertion in model container [2021-06-16 16:30:44,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 04:30:44" (3/3) ... [2021-06-16 16:30:44,374 INFO L111 eAbstractionObserver]: Analyzing ICFG 02-atomic-function.c [2021-06-16 16:30:44,382 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 16:30:44,382 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 16:30:44,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 16:30:44,383 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 16:30:44,408 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,408 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,408 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,408 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,408 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,408 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,409 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,409 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,409 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,409 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,411 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,411 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,413 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,414 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,414 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,414 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 16:30:44,421 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 16:30:44,440 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-16 16:30:44,466 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 16:30:44,466 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 16:30:44,467 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 16:30:44,467 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 16:30:44,467 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 16:30:44,467 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 16:30:44,468 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 16:30:44,468 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 16:30:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 55 states have (on average 1.2) internal successors, (66), 65 states have internal predecessors, (66), 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) [2021-06-16 16:30:44,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-06-16 16:30:44,556 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 16:30:44,556 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 16:30:44,557 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 16:30:44,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 16:30:44,563 INFO L82 PathProgramCache]: Analyzing trace with hash 290198714, now seen corresponding path program 1 times [2021-06-16 16:30:44,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 16:30:44,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603545305] [2021-06-16 16:30:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 16:30:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 16:30:44,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:30:44,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 16:30:44,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:30:44,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 16:30:44,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:30:44,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 16:30:44,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 16:30:44,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 16:30:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 16:30:44,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 16:30:44,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603545305] [2021-06-16 16:30:44,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603545305] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 16:30:44,751 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 16:30:44,751 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 16:30:44,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821161092] [2021-06-16 16:30:44,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 16:30:44,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 16:30:44,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 16:30:44,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 16:30:44,771 INFO L87 Difference]: Start difference. First operand has 66 states, 55 states have (on average 1.2) internal successors, (66), 65 states have internal predecessors, (66), 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) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-06-16 16:30:44,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 16:30:44,803 INFO L93 Difference]: Finished difference Result 56 states and 55 transitions. [2021-06-16 16:30:44,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 16:30:44,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) Word has length 16 [2021-06-16 16:30:44,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 16:30:44,810 INFO L225 Difference]: With dead ends: 56 [2021-06-16 16:30:44,810 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 16:30:44,812 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 16:30:44,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 16:30:44,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 16:30:44,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-16 16:30:44,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 16:30:44,831 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-06-16 16:30:44,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 16:30:44,831 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 16:30:44,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-06-16 16:30:44,832 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 16:30:44,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 16:30:44,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 16:30:44,834 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 16:30:44,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 04:30:44 BasicIcfg [2021-06-16 16:30:44,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 16:30:44,839 INFO L168 Benchmark]: Toolchain (without parser) took 1110.22 ms. Allocated memory is still 185.6 MB. Free memory was 148.5 MB in the beginning and 128.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-06-16 16:30:44,840 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 185.6 MB. Free memory is still 166.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 16:30:44,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.04 ms. Allocated memory is still 185.6 MB. Free memory was 148.3 MB in the beginning and 139.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-06-16 16:30:44,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.03 ms. Allocated memory is still 185.6 MB. Free memory was 139.7 MB in the beginning and 167.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-06-16 16:30:44,842 INFO L168 Benchmark]: Boogie Preprocessor took 19.01 ms. Allocated memory is still 185.6 MB. Free memory was 167.3 MB in the beginning and 166.7 MB in the end (delta: 651.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 16:30:44,844 INFO L168 Benchmark]: RCFGBuilder took 364.71 ms. Allocated memory is still 185.6 MB. Free memory was 166.7 MB in the beginning and 152.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-16 16:30:44,845 INFO L168 Benchmark]: TraceAbstraction took 467.54 ms. Allocated memory is still 185.6 MB. Free memory was 152.1 MB in the beginning and 128.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-06-16 16:30:44,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 185.6 MB. Free memory is still 166.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 189.04 ms. Allocated memory is still 185.6 MB. Free memory was 148.3 MB in the beginning and 139.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 63.03 ms. Allocated memory is still 185.6 MB. Free memory was 139.7 MB in the beginning and 167.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.01 ms. Allocated memory is still 185.6 MB. Free memory was 167.3 MB in the beginning and 166.7 MB in the end (delta: 651.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 364.71 ms. Allocated memory is still 185.6 MB. Free memory was 166.7 MB in the beginning and 152.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 467.54 ms. Allocated memory is still 185.6 MB. Free memory was 152.1 MB in the beginning and 128.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46, positive: 44, positive conditional: 44, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 44, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 44, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 44, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 44, unknown conditional: 0, unknown unconditional: 44] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 2 - PositiveResult [Line: 33]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 369.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.7ms, AutomataDifference: 55.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 80.0ms, PartialOrderReductionTime: 68.9ms, HoareTripleCheckerStatistics: 20 SDtfs, 8 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, 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: 7.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.6ms SsaConstructionTime, 22.7ms SatisfiabilityAnalysisTime, 86.7ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 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...