/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.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 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-15 18:44:12,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 18:44:12,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 18:44:12,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 18:44:12,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 18:44:12,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 18:44:12,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 18:44:12,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 18:44:12,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 18:44:12,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 18:44:12,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 18:44:12,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 18:44:12,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 18:44:12,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 18:44:12,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 18:44:12,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 18:44:12,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 18:44:12,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 18:44:12,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 18:44:12,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 18:44:12,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 18:44:12,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 18:44:12,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 18:44:12,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 18:44:12,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 18:44:12,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 18:44:12,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 18:44:12,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 18:44:12,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 18:44:12,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 18:44:12,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 18:44:12,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 18:44:12,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 18:44:12,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 18:44:12,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 18:44:12,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 18:44:12,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 18:44:12,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 18:44:12,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 18:44:12,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 18:44:12,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 18:44:12,363 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.epf [2022-02-15 18:44:12,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 18:44:12,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 18:44:12,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-15 18:44:12,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-15 18:44:12,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-15 18:44:12,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-15 18:44:12,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-15 18:44:12,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-15 18:44:12,378 INFO L138 SettingsManager]: * Use SBE=true [2022-02-15 18:44:12,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 18:44:12,379 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 18:44:12,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 18:44:12,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 18:44:12,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 18:44:12,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 18:44:12,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 18:44:12,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 18:44:12,379 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 18:44:12,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 18:44:12,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 18:44:12,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 18:44:12,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 18:44:12,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 18:44:12,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 18:44:12,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 18:44:12,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 18:44:12,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 18:44:12,380 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-15 18:44:12,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-15 18:44:12,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-15 18:44:12,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 18:44:12,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-15 18:44:12,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-15 18:44:12,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-15 18:44:12,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 18:44:12,381 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-15 18:44:12,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-02-15 18:44:12,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 18:44:12,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 18:44:12,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 18:44:12,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 18:44:12,623 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 18:44:12,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.i [2022-02-15 18:44:12,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c150b8f3c/92812220a4dc456793f8bcba51b27971/FLAGbf04d4d8f [2022-02-15 18:44:13,033 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 18:44:13,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.i [2022-02-15 18:44:13,059 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c150b8f3c/92812220a4dc456793f8bcba51b27971/FLAGbf04d4d8f [2022-02-15 18:44:13,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c150b8f3c/92812220a4dc456793f8bcba51b27971 [2022-02-15 18:44:13,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 18:44:13,400 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 18:44:13,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 18:44:13,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 18:44:13,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 18:44:13,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b7be11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13, skipping insertion in model container [2022-02-15 18:44:13,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 18:44:13,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 18:44:13,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 18:44:13,697 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 18:44:13,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 18:44:13,787 INFO L208 MainTranslator]: Completed translation [2022-02-15 18:44:13,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13 WrapperNode [2022-02-15 18:44:13,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 18:44:13,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-15 18:44:13,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-15 18:44:13,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-15 18:44:13,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,837 INFO L137 Inliner]: procedures = 262, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-02-15 18:44:13,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-15 18:44:13,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 18:44:13,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 18:44:13,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 18:44:13,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 18:44:13,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 18:44:13,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 18:44:13,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 18:44:13,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (1/1) ... [2022-02-15 18:44:13,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 18:44:13,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 18:44:13,912 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) [2022-02-15 18:44:13,919 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 [2022-02-15 18:44:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-15 18:44:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 18:44:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 18:44:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 18:44:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-15 18:44:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 18:44:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-15 18:44:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-15 18:44:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 18:44:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 18:44:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 18:44:13,949 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-15 18:44:14,051 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 18:44:14,052 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 18:44:14,176 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 18:44:14,181 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 18:44:14,181 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-15 18:44:14,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 06:44:14 BoogieIcfgContainer [2022-02-15 18:44:14,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 18:44:14,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 18:44:14,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 18:44:14,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 18:44:14,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 06:44:13" (1/3) ... [2022-02-15 18:44:14,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e12282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 06:44:14, skipping insertion in model container [2022-02-15 18:44:14,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:44:13" (2/3) ... [2022-02-15 18:44:14,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e12282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 06:44:14, skipping insertion in model container [2022-02-15 18:44:14,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 06:44:14" (3/3) ... [2022-02-15 18:44:14,188 INFO L111 eAbstractionObserver]: Analyzing ICFG 03-practical_07-nonterm.i [2022-02-15 18:44:14,192 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-15 18:44:14,192 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-15 18:44:14,192 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-02-15 18:44:14,192 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-15 18:44:14,213 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,213 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,213 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,213 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,213 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,213 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,213 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,213 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,219 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,220 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,220 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 18:44:14,223 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-15 18:44:14,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-15 18:44:14,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 18:44:14,254 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-15 18:44:14,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-15 18:44:14,274 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 18:44:14,278 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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 [2022-02-15 18:44:14,279 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-02-15 18:44:14,308 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-02-15 18:44:14,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 18:44:14,312 INFO L85 PathProgramCache]: Analyzing trace with hash -693851461, now seen corresponding path program 1 times [2022-02-15 18:44:14,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 18:44:14,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305661335] [2022-02-15 18:44:14,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 18:44:14,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 18:44:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 18:44:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 18:44:14,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 18:44:14,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305661335] [2022-02-15 18:44:14,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305661335] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 18:44:14,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 18:44:14,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-15 18:44:14,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159660283] [2022-02-15 18:44:14,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 18:44:14,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 18:44:14,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 18:44:14,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 18:44:14,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 18:44:14,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 18:44:14,519 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 18:44:14,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2022-02-15 18:44:14,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 18:44:14,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 18:44:14,544 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-02-15 18:44:14,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 18:44:14,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1256221422, now seen corresponding path program 1 times [2022-02-15 18:44:14,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 18:44:14,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140712774] [2022-02-15 18:44:14,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 18:44:14,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 18:44:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 18:44:14,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 18:44:14,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 18:44:14,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140712774] [2022-02-15 18:44:14,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140712774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 18:44:14,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 18:44:14,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-15 18:44:14,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564760573] [2022-02-15 18:44:14,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 18:44:14,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 18:44:14,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 18:44:14,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 18:44:14,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 18:44:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 18:44:14,624 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 18:44:14,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-02-15 18:44:14,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 18:44:14,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 18:44:14,657 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-02-15 18:44:14,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 18:44:14,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1111228712, now seen corresponding path program 1 times [2022-02-15 18:44:14,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 18:44:14,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991925944] [2022-02-15 18:44:14,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 18:44:14,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 18:44:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 18:44:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 18:44:14,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 18:44:14,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991925944] [2022-02-15 18:44:14,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991925944] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 18:44:14,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 18:44:14,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 18:44:14,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171921493] [2022-02-15 18:44:14,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 18:44:14,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 18:44:14,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 18:44:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 18:44:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-02-15 18:44:14,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 18:44:14,803 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 18:44:14,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-02-15 18:44:14,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 18:44:14,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 18:44:14,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 18:44:14,840 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-02-15 18:44:14,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 18:44:14,841 INFO L85 PathProgramCache]: Analyzing trace with hash -159709763, now seen corresponding path program 1 times [2022-02-15 18:44:14,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 18:44:14,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353039328] [2022-02-15 18:44:14,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 18:44:14,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 18:44:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 18:44:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 18:44:14,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 18:44:14,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353039328] [2022-02-15 18:44:14,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353039328] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 18:44:14,882 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 18:44:14,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-15 18:44:14,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756070422] [2022-02-15 18:44:14,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 18:44:14,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 18:44:14,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 18:44:14,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 18:44:14,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 18:44:14,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 18:44:14,884 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 18:44:14,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.5) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-02-15 18:44:14,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-15 18:44:14,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 18:44:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 18:44:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 18:44:14,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 18:44:14,968 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-02-15 18:44:14,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 18:44:14,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1078084372, now seen corresponding path program 1 times [2022-02-15 18:44:14,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 18:44:14,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530741356] [2022-02-15 18:44:14,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 18:44:14,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 18:44:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 18:44:14,982 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-15 18:44:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 18:44:15,002 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-15 18:44:15,003 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-15 18:44:15,003 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2022-02-15 18:44:15,005 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2022-02-15 18:44:15,005 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2022-02-15 18:44:15,005 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2022-02-15 18:44:15,005 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 9 remaining) [2022-02-15 18:44:15,005 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2022-02-15 18:44:15,005 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2022-02-15 18:44:15,006 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2022-02-15 18:44:15,006 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2022-02-15 18:44:15,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 18:44:15,010 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-02-15 18:44:15,013 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-15 18:44:15,013 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 18:44:15,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 06:44:15 BasicIcfg [2022-02-15 18:44:15,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 18:44:15,049 INFO L158 Benchmark]: Toolchain (without parser) took 1649.37ms. Allocated memory is still 194.0MB. Free memory was 149.4MB in the beginning and 69.4MB in the end (delta: 80.0MB). Peak memory consumption was 80.1MB. Max. memory is 8.0GB. [2022-02-15 18:44:15,050 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory is still 167.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 18:44:15,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.35ms. Allocated memory is still 194.0MB. Free memory was 149.3MB in the beginning and 155.4MB in the end (delta: -6.1MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2022-02-15 18:44:15,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.21ms. Allocated memory is still 194.0MB. Free memory was 155.4MB in the beginning and 153.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 18:44:15,051 INFO L158 Benchmark]: Boogie Preprocessor took 38.93ms. Allocated memory is still 194.0MB. Free memory was 153.2MB in the beginning and 151.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 18:44:15,051 INFO L158 Benchmark]: RCFGBuilder took 304.80ms. Allocated memory is still 194.0MB. Free memory was 151.2MB in the beginning and 138.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-15 18:44:15,051 INFO L158 Benchmark]: TraceAbstraction took 865.29ms. Allocated memory is still 194.0MB. Free memory was 138.1MB in the beginning and 69.4MB in the end (delta: 68.7MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. [2022-02-15 18:44:15,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory is still 167.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 387.35ms. Allocated memory is still 194.0MB. Free memory was 149.3MB in the beginning and 155.4MB in the end (delta: -6.1MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.21ms. Allocated memory is still 194.0MB. Free memory was 155.4MB in the beginning and 153.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.93ms. Allocated memory is still 194.0MB. Free memory was 153.2MB in the beginning and 151.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 304.80ms. Allocated memory is still 194.0MB. Free memory was 151.2MB in the beginning and 138.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 865.29ms. Allocated memory is still 194.0MB. Free memory was 138.1MB in the beginning and 69.4MB in the end (delta: 68.7MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 305, positive: 250, positive conditional: 250, positive unconditional: 0, negative: 55, negative conditional: 55, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 252, positive: 250, positive conditional: 250, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 252, positive: 250, positive conditional: 250, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 253, positive: 250, positive conditional: 173, positive unconditional: 77, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 253, positive: 250, positive conditional: 134, positive unconditional: 116, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 253, positive: 250, positive conditional: 134, positive unconditional: 116, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 185, positive: 182, positive conditional: 105, positive unconditional: 77, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 185, positive: 180, positive conditional: 0, positive unconditional: 180, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 7, positive conditional: 2, positive unconditional: 5, negative: 29, negative conditional: 1, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 253, positive: 68, positive conditional: 29, positive unconditional: 39, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 185, unknown conditional: 106, unknown unconditional: 79] , Statistics on independence cache: Total cache size (in pairs): 185, Positive cache size: 182, Positive conditional cache size: 105, Positive unconditional cache size: 77, Negative cache size: 3, Negative conditional cache size: 1, Negative unconditional cache size: 2, Eliminated conditions: 39, Maximal queried relation: 1, Independence queries for same thread: 53 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 931]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={3:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={3:0}, mutex2={4:0}, myglobal=0] [L928] 0 pthread_t id; VAL [id={5:0}, mutex1={3:0}, mutex2={4:0}, myglobal=0] [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, mutex1={3:0}, mutex2={4:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L931] EXPR 0 myglobal+1 VAL [arg={0:0}, id={5:0}, mutex1={3:0}, mutex2={4:0}, myglobal=0] [L931] 0 myglobal=myglobal+1 VAL [arg={0:0}, id={5:0}, mutex1={3:0}, mutex2={4:0}, myglobal=1, myglobal=myglobal+1=25] [L922] 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={3:0}, mutex2={4:0}, myglobal=1] [L931] 0 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, id={5:0}, mutex1={3:0}, mutex2={4:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal+1 [922] and C: myglobal=myglobal+1 [931] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: 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. - UnprovableResult [Line: 922]: 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 there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 177 ConstructedInterpolants, 0 QuantifiedInterpolants, 264 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 could not prove your program: unable to determine feasibility of some traces [2022-02-15 18:44:15,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-15 18:44:15,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...