/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:01,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:01,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:01,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 23:06:01,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 23:06:01,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 23:06:01,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 23:06:01,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 23:06:01,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 23:06:01,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 23:06:01,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 23:06:01,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 23:06:01,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:06:01,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:06:01,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:06:01,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:06:01,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:06:01,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:06:01,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:06:01,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:06:01,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:06:01,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:06:01,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:06:01,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:06:01,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 23:06:01,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 23:06:01,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 23:06:01,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 23:06:01,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 23:06:01,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 23:06:01,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 23:06:01,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 23:06:01,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 23:06:01,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 23:06:01,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 23:06:01,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 23:06:01,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 23:06:01,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 23:06:01,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:01,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:01,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:01,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-16 23:06:01,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:01,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:01,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:01,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:01,549 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:01,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:01,550 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:01,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:01,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:01,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:01,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:01,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:01,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:01,550 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:01,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:01,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:01,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:01,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:01,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:01,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:01,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:01,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:01,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:01,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:01,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:01,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:01,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:01,552 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:01,552 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:01,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:06:01,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:06:01,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:06:01,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:06:01,710 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:06:01,711 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:06:01,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.i [2021-10-16 23:06:01,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb529dbc/fb9f8a40737346dab222bc202ef154e6/FLAG56f6c65c6 [2021-10-16 23:06:02,103 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:06:02,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.i [2021-10-16 23:06:02,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb529dbc/fb9f8a40737346dab222bc202ef154e6/FLAG56f6c65c6 [2021-10-16 23:06:02,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb529dbc/fb9f8a40737346dab222bc202ef154e6 [2021-10-16 23:06:02,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:06:02,509 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:06:02,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:02,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:06:02,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:06:02,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:02,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11fade03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02, skipping insertion in model container [2021-10-16 23:06:02,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:02,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:06:02,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:06:02,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:02,842 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:06:02,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:02,929 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:06:02,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02 WrapperNode [2021-10-16 23:06:02,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:02,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:02,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:06:02,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:06:02,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:02,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:02,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:02,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:06:02,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:06:02,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:06:02,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:02,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:02,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:02,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:03,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:03,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:03,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:03,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:06:03,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:06:03,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:06:03,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:06:03,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (1/1) ... [2021-10-16 23:06:03,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:03,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:06:03,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 23:06:03,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 23:06:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:06:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:06:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:06:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:06:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:06:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:06:03,082 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:06:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:06:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:06:03,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:06:03,083 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 23:06:03,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:06:03,301 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 23:06:03,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:03 BoogieIcfgContainer [2021-10-16 23:06:03,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:06:03,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:06:03,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:06:03,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:06:03,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:02" (1/3) ... [2021-10-16 23:06:03,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb5fa35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:03, skipping insertion in model container [2021-10-16 23:06:03,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:02" (2/3) ... [2021-10-16 23:06:03,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb5fa35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:03, skipping insertion in model container [2021-10-16 23:06:03,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:03" (3/3) ... [2021-10-16 23:06:03,312 INFO L111 eAbstractionObserver]: Analyzing ICFG 03-practical_07-nonterm.i [2021-10-16 23:06:03,315 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:06:03,315 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 23:06:03,315 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:06:03,335 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,336 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,336 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,336 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,336 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,343 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,343 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:03,349 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-16 23:06:03,383 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:06:03,387 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 23:06:03,387 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 23:06:03,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 164 flow [2021-10-16 23:06:03,423 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2021-10-16 23:06:03,423 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:03,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 77 events. 2/77 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2021-10-16 23:06:03,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 164 flow [2021-10-16 23:06:03,429 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 65 transitions, 133 flow [2021-10-16 23:06:03,437 INFO L129 PetriNetUnfolder]: 0/43 cut-off events. [2021-10-16 23:06:03,437 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:03,437 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:03,438 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:03,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:03,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:03,442 INFO L82 PathProgramCache]: Analyzing trace with hash 954316764, now seen corresponding path program 1 times [2021-10-16 23:06:03,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:03,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289719909] [2021-10-16 23:06:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:03,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:03,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:03,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289719909] [2021-10-16 23:06:03,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289719909] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:03,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:03,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:03,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063559531] [2021-10-16 23:06:03,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:03,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:03,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:03,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:03,694 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 78 [2021-10-16 23:06:03,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 65 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2021-10-16 23:06:03,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:03,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 78 [2021-10-16 23:06:03,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:03,819 INFO L129 PetriNetUnfolder]: 32/184 cut-off events. [2021-10-16 23:06:03,819 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:03,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 184 events. 32/184 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 680 event pairs, 14 based on Foata normal form. 6/176 useless extension candidates. Maximal degree in co-relation 229. Up to 54 conditions per place. [2021-10-16 23:06:03,822 INFO L132 encePairwiseOnDemand]: 70/78 looper letters, 12 selfloop transitions, 5 changer transitions 0/67 dead transitions. [2021-10-16 23:06:03,822 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 67 transitions, 171 flow [2021-10-16 23:06:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:03,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:03,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2021-10-16 23:06:03,833 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.905982905982906 [2021-10-16 23:06:03,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 212 transitions. [2021-10-16 23:06:03,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 212 transitions. [2021-10-16 23:06:03,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:03,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 212 transitions. [2021-10-16 23:06:03,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2021-10-16 23:06:03,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2021-10-16 23:06:03,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2021-10-16 23:06:03,849 INFO L186 Difference]: Start difference. First operand has 67 places, 65 transitions, 133 flow. Second operand 3 states and 212 transitions. [2021-10-16 23:06:03,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 67 transitions, 171 flow [2021-10-16 23:06:03,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 67 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:06:03,857 INFO L242 Difference]: Finished difference. Result has 67 places, 65 transitions, 162 flow [2021-10-16 23:06:03,859 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=67, PETRI_TRANSITIONS=65} [2021-10-16 23:06:03,860 INFO L334 CegarLoopForPetriNet]: 67 programPoint places, 0 predicate places. [2021-10-16 23:06:03,861 INFO L470 AbstractCegarLoop]: Abstraction has has 67 places, 65 transitions, 162 flow [2021-10-16 23:06:03,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2021-10-16 23:06:03,863 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:03,864 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:03,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:06:03,869 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:03,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:03,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1903307315, now seen corresponding path program 1 times [2021-10-16 23:06:03,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:03,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418205520] [2021-10-16 23:06:03,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:03,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:03,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:03,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:03,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418205520] [2021-10-16 23:06:03,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418205520] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:03,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:03,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:03,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032112606] [2021-10-16 23:06:03,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:03,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:03,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:03,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:03,950 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 78 [2021-10-16 23:06:03,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 65 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2021-10-16 23:06:03,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:03,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 78 [2021-10-16 23:06:03,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:03,998 INFO L129 PetriNetUnfolder]: 38/203 cut-off events. [2021-10-16 23:06:03,998 INFO L130 PetriNetUnfolder]: For 56/58 co-relation queries the response was YES. [2021-10-16 23:06:03,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 203 events. 38/203 cut-off events. For 56/58 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 758 event pairs, 11 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 331. Up to 56 conditions per place. [2021-10-16 23:06:04,000 INFO L132 encePairwiseOnDemand]: 72/78 looper letters, 11 selfloop transitions, 6 changer transitions 5/72 dead transitions. [2021-10-16 23:06:04,000 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 72 transitions, 230 flow [2021-10-16 23:06:04,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:04,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:04,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2021-10-16 23:06:04,006 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2021-10-16 23:06:04,006 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 210 transitions. [2021-10-16 23:06:04,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 210 transitions. [2021-10-16 23:06:04,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:04,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 210 transitions. [2021-10-16 23:06:04,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2021-10-16 23:06:04,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2021-10-16 23:06:04,009 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2021-10-16 23:06:04,009 INFO L186 Difference]: Start difference. First operand has 67 places, 65 transitions, 162 flow. Second operand 3 states and 210 transitions. [2021-10-16 23:06:04,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 72 transitions, 230 flow [2021-10-16 23:06:04,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 72 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:06:04,013 INFO L242 Difference]: Finished difference. Result has 69 places, 66 transitions, 184 flow [2021-10-16 23:06:04,013 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2021-10-16 23:06:04,013 INFO L334 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2021-10-16 23:06:04,014 INFO L470 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 184 flow [2021-10-16 23:06:04,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2021-10-16 23:06:04,014 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:04,014 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:04,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:06:04,015 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:04,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:04,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1116258117, now seen corresponding path program 1 times [2021-10-16 23:06:04,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:04,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650370502] [2021-10-16 23:06:04,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:04,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:04,057 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 23:06:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:04,092 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 23:06:04,092 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 23:06:04,093 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:04,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:04,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:06:04,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:04,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:06:04,100 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:06:04,101 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:06:04,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:06:04 BasicIcfg [2021-10-16 23:06:04,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:06:04,146 INFO L168 Benchmark]: Toolchain (without parser) took 1634.62 ms. Allocated memory was 199.2 MB in the beginning and 291.5 MB in the end (delta: 92.3 MB). Free memory was 144.6 MB in the beginning and 234.2 MB in the end (delta: -89.6 MB). Peak memory consumption was 3.8 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:04,147 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 199.2 MB. Free memory is still 163.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:06:04,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.42 ms. Allocated memory was 199.2 MB in the beginning and 291.5 MB in the end (delta: 92.3 MB). Free memory was 144.4 MB in the beginning and 251.0 MB in the end (delta: -106.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:04,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.21 ms. Allocated memory is still 291.5 MB. Free memory was 251.0 MB in the beginning and 248.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:04,151 INFO L168 Benchmark]: Boogie Preprocessor took 29.47 ms. Allocated memory is still 291.5 MB. Free memory was 248.7 MB in the beginning and 247.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:04,152 INFO L168 Benchmark]: RCFGBuilder took 290.65 ms. Allocated memory is still 291.5 MB. Free memory was 247.4 MB in the beginning and 235.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:04,152 INFO L168 Benchmark]: TraceAbstraction took 840.09 ms. Allocated memory is still 291.5 MB. Free memory was 234.8 MB in the beginning and 234.2 MB in the end (delta: 568.1 kB). Peak memory consumption was 1.5 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:04,156 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 199.2 MB. Free memory is still 163.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 419.42 ms. Allocated memory was 199.2 MB in the beginning and 291.5 MB in the end (delta: 92.3 MB). Free memory was 144.4 MB in the beginning and 251.0 MB in the end (delta: -106.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.21 ms. Allocated memory is still 291.5 MB. Free memory was 251.0 MB in the beginning and 248.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.47 ms. Allocated memory is still 291.5 MB. Free memory was 248.7 MB in the beginning and 247.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 290.65 ms. Allocated memory is still 291.5 MB. Free memory was 247.4 MB in the beginning and 235.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 840.09 ms. Allocated memory is still 291.5 MB. Free memory was 234.8 MB in the beginning and 234.2 MB in the end (delta: 568.1 kB). Peak memory consumption was 1.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 915]: the program contains a data race the program contains a data race We found a FailurePath: [L910] 0 int myglobal; VAL [myglobal=0] [L911] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={6:0}, myglobal=0] [L912] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={6:0}, mutex2={7:0}, myglobal=0] [L921] 0 pthread_t id; VAL [mutex1={6:0}, mutex2={7:0}, myglobal=0] [L922] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, mutex1={6:0}, mutex2={7:0}, myglobal=0] [L915] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={6:0}, mutex2={7:0}, myglobal=1, myglobal+1=26, myglobal=myglobal+1=25] [L915] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={6:0}, mutex2={7:0}, myglobal=1, myglobal+1=26, myglobal=myglobal+1=25] - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 97 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 718.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 236.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 41.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 24 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.8ms SsaConstructionTime, 108.1ms SatisfiabilityAnalysisTime, 125.2ms InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-10-16 23:06:04,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...