/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-POR-NewStatesSleep-NoLbe-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 20:11:00,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 20:11:00,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 20:11:00,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 20:11:00,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 20:11:00,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 20:11:00,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 20:11:00,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 20:11:00,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 20:11:00,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 20:11:00,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 20:11:00,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 20:11:00,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 20:11:00,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 20:11:00,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 20:11:00,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 20:11:00,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 20:11:00,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 20:11:00,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 20:11:00,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 20:11:00,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 20:11:00,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 20:11:00,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 20:11:00,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 20:11:00,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 20:11:00,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 20:11:00,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 20:11:00,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 20:11:00,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 20:11:00,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 20:11:00,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 20:11:00,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 20:11:00,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 20:11:00,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 20:11:00,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 20:11:00,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 20:11:00,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 20:11:00,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 20:11:00,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 20:11:00,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 20:11:00,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 20:11:00,280 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-POR-NewStatesSleep-NoLbe-Symm.epf [2021-06-16 20:11:00,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 20:11:00,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 20:11:00,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 20:11:00,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 20:11:00,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 20:11:00,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 20:11:00,324 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 20:11:00,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 20:11:00,324 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 20:11:00,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 20:11:00,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 20:11:00,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 20:11:00,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 20:11:00,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 20:11:00,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 20:11:00,326 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 20:11:00,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 20:11:00,326 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 20:11:00,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 20:11:00,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 20:11:00,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 20:11:00,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 20:11:00,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 20:11:00,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 20:11:00,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 20:11:00,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 20:11:00,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 20:11:00,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 20:11:00,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 20:11:00,328 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 20:11:00,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 20:11:00,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 20:11:00,328 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 20:11:00,329 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-06-16 20:11:00,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 20:11:00,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 20:11:00,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 20:11:00,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 20:11:00,649 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 20:11:00,650 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 20:11:00,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2021-06-16 20:11:00,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69fc9ea9c/d7b41d638bd640cca593ccf13401dc94/FLAG5ae9a4d04 [2021-06-16 20:11:01,187 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 20:11:01,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2021-06-16 20:11:01,188 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-16 20:11:01,188 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-16 20:11:01,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69fc9ea9c/d7b41d638bd640cca593ccf13401dc94/FLAG5ae9a4d04 [2021-06-16 20:11:01,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69fc9ea9c/d7b41d638bd640cca593ccf13401dc94 [2021-06-16 20:11:01,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 20:11:01,684 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 20:11:01,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 20:11:01,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 20:11:01,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 20:11:01,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:01,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d21560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01, skipping insertion in model container [2021-06-16 20:11:01,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:01,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 20:11:01,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 20:11:01,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 20:11:01,876 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 20:11:01,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 20:11:01,943 INFO L208 MainTranslator]: Completed translation [2021-06-16 20:11:01,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01 WrapperNode [2021-06-16 20:11:01,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 20:11:01,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 20:11:01,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 20:11:01,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 20:11:01,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:01,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:01,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 20:11:01,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 20:11:01,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 20:11:01,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 20:11:01,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:01,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:01,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:01,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:01,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:01,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:02,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (1/1) ... [2021-06-16 20:11:02,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 20:11:02,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 20:11:02,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 20:11:02,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 20:11:02,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (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 20:11:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 20:11:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-06-16 20:11:02,081 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-06-16 20:11:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 20:11:02,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 20:11:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-16 20:11:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 20:11:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 20:11:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2021-06-16 20:11:02,081 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2021-06-16 20:11:02,083 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 20:11:02,373 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 20:11:02,373 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-16 20:11:02,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 08:11:02 BoogieIcfgContainer [2021-06-16 20:11:02,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 20:11:02,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 20:11:02,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 20:11:02,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 20:11:02,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 08:11:01" (1/3) ... [2021-06-16 20:11:02,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52755531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 08:11:02, skipping insertion in model container [2021-06-16 20:11:02,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 08:11:01" (2/3) ... [2021-06-16 20:11:02,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52755531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 08:11:02, skipping insertion in model container [2021-06-16 20:11:02,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 08:11:02" (3/3) ... [2021-06-16 20:11:02,381 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest1.c [2021-06-16 20:11:02,386 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 20:11:02,386 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 20:11:02,386 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 20:11:02,387 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 20:11:02,413 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,413 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,413 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,414 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,414 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,414 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,414 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,414 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,414 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,415 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,415 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,415 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,415 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,415 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,416 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,416 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,416 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,416 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,416 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,417 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,417 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,417 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,417 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,417 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,417 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,417 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,418 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,418 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,418 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,418 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,418 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,419 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,419 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,419 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,419 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,419 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,426 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,426 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,426 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,427 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,427 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,434 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,434 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,435 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,435 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,435 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 20:11:02,454 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-16 20:11:02,474 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-16 20:11:02,533 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 20:11:02,533 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 20:11:02,533 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 20:11:02,533 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 20:11:02,533 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 20:11:02,533 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 20:11:02,533 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 20:11:02,534 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 20:11:02,582 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 20:11:02,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:11:02,589 INFO L82 PathProgramCache]: Analyzing trace with hash -132966468, now seen corresponding path program 1 times [2021-06-16 20:11:02,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:11:02,601 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381405631] [2021-06-16 20:11:02,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:11:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:11:02,802 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 20:11:02,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:11:02,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381405631] [2021-06-16 20:11:02,804 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381405631] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 20:11:02,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 20:11:02,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-16 20:11:02,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937139739] [2021-06-16 20:11:02,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 20:11:02,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:11:02,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 20:11:02,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 20:11:02,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:11:02,824 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:11:02,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 20:11:02,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:11:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 20:11:02,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 20:11:02,914 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 20:11:02,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:11:02,915 INFO L82 PathProgramCache]: Analyzing trace with hash 623851543, now seen corresponding path program 1 times [2021-06-16 20:11:02,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:11:02,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443924943] [2021-06-16 20:11:02,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:11:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-16 20:11:02,941 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-16 20:11:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-16 20:11:02,965 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-16 20:11:02,985 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-16 20:11:02,986 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-16 20:11:02,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 20:11:02,994 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 20:11:03,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 08:11:03 BasicIcfg [2021-06-16 20:11:03,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 20:11:03,035 INFO L168 Benchmark]: Toolchain (without parser) took 1350.81 ms. Allocated memory is still 191.9 MB. Free memory was 155.0 MB in the beginning and 120.6 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.1 MB. Max. memory is 8.0 GB. [2021-06-16 20:11:03,037 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 191.9 MB. Free memory is still 173.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 20:11:03,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.86 ms. Allocated memory is still 191.9 MB. Free memory was 154.8 MB in the beginning and 175.7 MB in the end (delta: -20.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-16 20:11:03,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.33 ms. Allocated memory is still 191.9 MB. Free memory was 175.7 MB in the beginning and 174.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 20:11:03,039 INFO L168 Benchmark]: Boogie Preprocessor took 27.27 ms. Allocated memory is still 191.9 MB. Free memory was 174.1 MB in the beginning and 173.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 20:11:03,042 INFO L168 Benchmark]: RCFGBuilder took 372.61 ms. Allocated memory is still 191.9 MB. Free memory was 173.1 MB in the beginning and 157.9 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-06-16 20:11:03,042 INFO L168 Benchmark]: TraceAbstraction took 657.74 ms. Allocated memory is still 191.9 MB. Free memory was 157.3 MB in the beginning and 120.6 MB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 8.0 GB. [2021-06-16 20:11:03,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 191.9 MB. Free memory is still 173.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 257.86 ms. Allocated memory is still 191.9 MB. Free memory was 154.8 MB in the beginning and 175.7 MB in the end (delta: -20.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.33 ms. Allocated memory is still 191.9 MB. Free memory was 175.7 MB in the beginning and 174.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.27 ms. Allocated memory is still 191.9 MB. Free memory was 174.1 MB in the beginning and 173.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 372.61 ms. Allocated memory is still 191.9 MB. Free memory was 173.1 MB in the beginning and 157.9 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 657.74 ms. Allocated memory is still 191.9 MB. Free memory was 157.3 MB in the beginning and 120.6 MB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 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: 114, positive: 104, positive conditional: 104, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 108, positive: 104, positive conditional: 104, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 108, positive: 104, positive conditional: 0, positive unconditional: 104, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 66, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 66, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 33, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 33, negative conditional: 7, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 108, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 66, unknown conditional: 0, unknown unconditional: 66] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 6, Negative conditional cache size: 2, Negative unconditional cache size: 4, SemanticConditionEliminator.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 33, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 33, negative conditional: 7, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 6, Negative conditional cache size: 2, Negative unconditional cache size: 4, Eliminated conditions: 2 ], Maximal queried relation: 1, Independence queries for same thread: 6 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int x = 0; VAL [x=0] [L27] 0 pthread_t first_th_id; VAL [x=0] [L28] 0 pthread_t second_th_id; VAL [x=0] [L30] FCALL, FORK 0 pthread_create(&first_th_id, NULL, inc, NULL) VAL [n={0:0}, x=0] [L17] 1 x++ VAL [n={0:0}, n={0:0}, x=1] [L18] 1 return NULL; VAL [\result={0:0}, n={0:0}, n={0:0}, x=1] [L31] FCALL, FORK 0 pthread_create(&second_th_id, NULL, dec, NULL) VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1] [L33] 0 \read(first_th_id) VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1] [L22] 2 x-- VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=1] [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--=1] [L34] 0 int y = x; VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=1] [L22] 2 x-- VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=0, x--=1] [L36] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=0, x--=1] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 64 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 497.7ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.3ms, PartialOrderReductionTime: 117.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.4ms SsaConstructionTime, 70.0ms SatisfiabilityAnalysisTime, 72.4ms InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 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...