/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.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/10-synch_02-thread_nonunique.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 18:34:09,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 18:34:09,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 18:34:09,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 18:34:09,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 18:34:09,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 18:34:09,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 18:34:09,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 18:34:09,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 18:34:09,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 18:34:09,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 18:34:09,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-03 18:34:09,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 18:34:09,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 18:34:09,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 18:34:09,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 18:34:09,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 18:34:09,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 18:34:09,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 18:34:09,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 18:34:09,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 18:34:09,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 18:34:09,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 18:34:09,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 18:34:09,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-03 18:34:09,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-03 18:34:09,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-03 18:34:09,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-03 18:34:09,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-03 18:34:09,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-03 18:34:09,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 18:34:09,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 18:34:09,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 18:34:09,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 18:34:09,462 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 18:34:09,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 18:34:09,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 18:34:09,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 18:34:09,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 18:34:09,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 18:34:09,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 18:34:09,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 18:34:09,464 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 18:34:09,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 18:34:09,465 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 18:34:09,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 18:34:09,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 18:34:09,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 18:34:09,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 18:34:09,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 18:34:09,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 18:34:09,466 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 18:34:09,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 18:34:09,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 18:34:09,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 18:34:09,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 18:34:09,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 18:34:09,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 18:34:09,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 18:34:09,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:34:09,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 18:34:09,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 18:34:09,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 18:34:09,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 18:34:09,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 18:34:09,468 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 18:34:09,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 18:34:09,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-03-03 18:34:09,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 18:34:09,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 18:34:09,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 18:34:09,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 18:34:09,661 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 18:34:09,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2022-03-03 18:34:09,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b8bad1e/cc7ed645998b42c189f1d865a4bf83c4/FLAGa49181d77 [2022-03-03 18:34:10,090 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 18:34:10,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2022-03-03 18:34:10,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b8bad1e/cc7ed645998b42c189f1d865a4bf83c4/FLAGa49181d77 [2022-03-03 18:34:10,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b8bad1e/cc7ed645998b42c189f1d865a4bf83c4 [2022-03-03 18:34:10,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 18:34:10,126 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 18:34:10,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 18:34:10,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 18:34:10,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 18:34:10,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f92936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10, skipping insertion in model container [2022-03-03 18:34:10,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 18:34:10,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 18:34:10,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 18:34:10,485 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 18:34:10,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 18:34:10,567 INFO L208 MainTranslator]: Completed translation [2022-03-03 18:34:10,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10 WrapperNode [2022-03-03 18:34:10,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 18:34:10,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 18:34:10,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 18:34:10,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 18:34:10,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,617 INFO L137 Inliner]: procedures = 259, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-03-03 18:34:10,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 18:34:10,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 18:34:10,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 18:34:10,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 18:34:10,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 18:34:10,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 18:34:10,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 18:34:10,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 18:34:10,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (1/1) ... [2022-03-03 18:34:10,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:34:10,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:34:10,685 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) [2022-03-03 18:34:10,707 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 [2022-03-03 18:34:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 18:34:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 18:34:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 18:34:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 18:34:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-03 18:34:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-03 18:34:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 18:34:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 18:34:10,719 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 18:34:10,815 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 18:34:10,816 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 18:34:10,938 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 18:34:10,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 18:34:10,943 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-03 18:34:10,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:34:10 BoogieIcfgContainer [2022-03-03 18:34:10,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 18:34:10,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 18:34:10,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 18:34:10,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 18:34:10,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 06:34:10" (1/3) ... [2022-03-03 18:34:10,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727fd8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:34:10, skipping insertion in model container [2022-03-03 18:34:10,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:34:10" (2/3) ... [2022-03-03 18:34:10,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727fd8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:34:10, skipping insertion in model container [2022-03-03 18:34:10,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:34:10" (3/3) ... [2022-03-03 18:34:10,949 INFO L111 eAbstractionObserver]: Analyzing ICFG 10-synch_02-thread_nonunique.i [2022-03-03 18:34:10,952 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 18:34:10,952 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 18:34:10,952 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-03-03 18:34:10,952 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 18:34:10,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,969 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,969 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,969 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,969 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,974 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,974 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:10,976 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-03 18:34:11,003 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 18:34:11,007 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 18:34:11,007 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-03 18:34:11,013 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 56 transitions, 120 flow [2022-03-03 18:34:11,046 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 311 states, 302 states have (on average 1.903973509933775) internal successors, (575), 310 states have internal predecessors, (575), 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) [2022-03-03 18:34:11,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 302 states have (on average 1.903973509933775) internal successors, (575), 310 states have internal predecessors, (575), 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) [2022-03-03 18:34:11,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-03 18:34:11,058 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:34:11,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:34:11,059 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-03-03 18:34:11,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:34:11,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1508681915, now seen corresponding path program 1 times [2022-03-03 18:34:11,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:34:11,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168622403] [2022-03-03 18:34:11,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:11,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:34:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:34:11,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:34:11,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:34:11,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168622403] [2022-03-03 18:34:11,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168622403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:34:11,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:34:11,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 18:34:11,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018852597] [2022-03-03 18:34:11,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:34:11,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 18:34:11,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:34:11,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 18:34:11,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 18:34:11,283 INFO L87 Difference]: Start difference. First operand has 311 states, 302 states have (on average 1.903973509933775) internal successors, (575), 310 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-03-03 18:34:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:34:11,320 INFO L93 Difference]: Finished difference Result 311 states and 554 transitions. [2022-03-03 18:34:11,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 18:34:11,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-03-03 18:34:11,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:34:11,336 INFO L225 Difference]: With dead ends: 311 [2022-03-03 18:34:11,336 INFO L226 Difference]: Without dead ends: 282 [2022-03-03 18:34:11,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 18:34:11,349 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:34:11,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:34:11,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-03-03 18:34:11,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-03-03 18:34:11,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 275 states have (on average 1.8072727272727274) internal successors, (497), 281 states have internal predecessors, (497), 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) [2022-03-03 18:34:11,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 497 transitions. [2022-03-03 18:34:11,418 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 497 transitions. Word has length 21 [2022-03-03 18:34:11,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:34:11,418 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 497 transitions. [2022-03-03 18:34:11,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-03-03 18:34:11,418 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 497 transitions. [2022-03-03 18:34:11,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-03 18:34:11,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:34:11,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:34:11,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 18:34:11,419 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] === [2022-03-03 18:34:11,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:34:11,420 INFO L85 PathProgramCache]: Analyzing trace with hash -298772548, now seen corresponding path program 1 times [2022-03-03 18:34:11,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:34:11,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636332241] [2022-03-03 18:34:11,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:11,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:34:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:34:11,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:34:11,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:34:11,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636332241] [2022-03-03 18:34:11,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636332241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:34:11,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:34:11,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:34:11,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709156305] [2022-03-03 18:34:11,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:34:11,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:34:11,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:34:11,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:34:11,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:34:11,484 INFO L87 Difference]: Start difference. First operand 282 states and 497 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-03-03 18:34:11,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:34:11,527 INFO L93 Difference]: Finished difference Result 239 states and 418 transitions. [2022-03-03 18:34:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:34:11,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-03-03 18:34:11,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:34:11,529 INFO L225 Difference]: With dead ends: 239 [2022-03-03 18:34:11,529 INFO L226 Difference]: Without dead ends: 239 [2022-03-03 18:34:11,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:34:11,530 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 28 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:34:11,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 56 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:34:11,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-03-03 18:34:11,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-03-03 18:34:11,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 233 states have (on average 1.793991416309013) internal successors, (418), 238 states have internal predecessors, (418), 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) [2022-03-03 18:34:11,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 418 transitions. [2022-03-03 18:34:11,539 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 418 transitions. Word has length 21 [2022-03-03 18:34:11,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:34:11,539 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 418 transitions. [2022-03-03 18:34:11,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-03-03 18:34:11,539 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 418 transitions. [2022-03-03 18:34:11,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-03 18:34:11,540 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:34:11,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:34:11,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 18:34:11,540 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] === [2022-03-03 18:34:11,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:34:11,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1391277118, now seen corresponding path program 1 times [2022-03-03 18:34:11,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:34:11,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706193320] [2022-03-03 18:34:11,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:11,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:34:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:34:11,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:34:11,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:34:11,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706193320] [2022-03-03 18:34:11,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706193320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:34:11,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:34:11,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 18:34:11,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472113269] [2022-03-03 18:34:11,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:34:11,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:34:11,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:34:11,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:34:11,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:34:11,572 INFO L87 Difference]: Start difference. First operand 239 states and 418 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-03-03 18:34:11,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:34:11,582 INFO L93 Difference]: Finished difference Result 218 states and 377 transitions. [2022-03-03 18:34:11,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:34:11,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-03-03 18:34:11,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:34:11,583 INFO L225 Difference]: With dead ends: 218 [2022-03-03 18:34:11,583 INFO L226 Difference]: Without dead ends: 218 [2022-03-03 18:34:11,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:34:11,584 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 21 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:34:11,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 103 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:34:11,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-03 18:34:11,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-03-03 18:34:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 215 states have (on average 1.7534883720930232) internal successors, (377), 217 states have internal predecessors, (377), 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) [2022-03-03 18:34:11,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 377 transitions. [2022-03-03 18:34:11,591 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 377 transitions. Word has length 22 [2022-03-03 18:34:11,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:34:11,592 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 377 transitions. [2022-03-03 18:34:11,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-03-03 18:34:11,592 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 377 transitions. [2022-03-03 18:34:11,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 18:34:11,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:34:11,593 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:34:11,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 18:34:11,593 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-03-03 18:34:11,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:34:11,594 INFO L85 PathProgramCache]: Analyzing trace with hash 499314067, now seen corresponding path program 1 times [2022-03-03 18:34:11,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:34:11,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461039362] [2022-03-03 18:34:11,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:11,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:34:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:34:11,620 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-03 18:34:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:34:11,653 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-03 18:34:11,653 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-03 18:34:11,654 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2022-03-03 18:34:11,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2022-03-03 18:34:11,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-03-03 18:34:11,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-03-03 18:34:11,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 18:34:11,657 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-03-03 18:34:11,658 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-03 18:34:11,658 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-03-03 18:34:11,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,665 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,665 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,666 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,666 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,668 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,668 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,668 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,669 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,671 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,671 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,671 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,672 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,672 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,673 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,673 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:34:11,677 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-03 18:34:11,681 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 18:34:11,683 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 18:34:11,683 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-03 18:34:11,684 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 67 transitions, 152 flow [2022-03-03 18:34:11,765 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3341 states, 3316 states have (on average 2.708986731001206) internal successors, (8983), 3340 states have internal predecessors, (8983), 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) [2022-03-03 18:34:11,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 3341 states, 3316 states have (on average 2.708986731001206) internal successors, (8983), 3340 states have internal predecessors, (8983), 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) [2022-03-03 18:34:11,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-03 18:34:11,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:34:11,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:34:11,775 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-03-03 18:34:11,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:34:11,777 INFO L85 PathProgramCache]: Analyzing trace with hash -179665602, now seen corresponding path program 1 times [2022-03-03 18:34:11,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:34:11,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557551690] [2022-03-03 18:34:11,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:11,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:34:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:34:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:34:11,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:34:11,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557551690] [2022-03-03 18:34:11,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557551690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:34:11,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:34:11,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 18:34:11,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543426808] [2022-03-03 18:34:11,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:34:11,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 18:34:11,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:34:11,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 18:34:11,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 18:34:11,825 INFO L87 Difference]: Start difference. First operand has 3341 states, 3316 states have (on average 2.708986731001206) internal successors, (8983), 3340 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-03-03 18:34:11,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:34:11,854 INFO L93 Difference]: Finished difference Result 3341 states and 8752 transitions. [2022-03-03 18:34:11,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 18:34:11,854 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-03-03 18:34:11,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:34:11,867 INFO L225 Difference]: With dead ends: 3341 [2022-03-03 18:34:11,867 INFO L226 Difference]: Without dead ends: 3172 [2022-03-03 18:34:11,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 18:34:11,871 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:34:11,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:34:11,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-03-03 18:34:11,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3172. [2022-03-03 18:34:11,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3151 states have (on average 2.6350364963503647) internal successors, (8303), 3171 states have internal predecessors, (8303), 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) [2022-03-03 18:34:11,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 8303 transitions. [2022-03-03 18:34:11,959 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 8303 transitions. Word has length 21 [2022-03-03 18:34:11,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:34:11,959 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 8303 transitions. [2022-03-03 18:34:11,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-03-03 18:34:11,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 8303 transitions. [2022-03-03 18:34:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-03 18:34:11,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:34:11,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:34:11,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 18:34:11,963 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 (and 1 more)] === [2022-03-03 18:34:11,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:34:11,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1987120065, now seen corresponding path program 1 times [2022-03-03 18:34:11,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:34:11,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948245172] [2022-03-03 18:34:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:11,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:34:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:34:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:34:12,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:34:12,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948245172] [2022-03-03 18:34:12,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948245172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:34:12,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:34:12,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:34:12,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327540077] [2022-03-03 18:34:12,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:34:12,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:34:12,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:34:12,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:34:12,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:34:12,022 INFO L87 Difference]: Start difference. First operand 3172 states and 8303 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-03-03 18:34:12,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:34:12,075 INFO L93 Difference]: Finished difference Result 2676 states and 6842 transitions. [2022-03-03 18:34:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:34:12,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-03-03 18:34:12,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:34:12,085 INFO L225 Difference]: With dead ends: 2676 [2022-03-03 18:34:12,085 INFO L226 Difference]: Without dead ends: 2676 [2022-03-03 18:34:12,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:34:12,086 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 38 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:34:12,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 99 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:34:12,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-03-03 18:34:12,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2589. [2022-03-03 18:34:12,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2589 states, 2571 states have (on average 2.601711396343835) internal successors, (6689), 2588 states have internal predecessors, (6689), 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) [2022-03-03 18:34:12,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2589 states to 2589 states and 6689 transitions. [2022-03-03 18:34:12,188 INFO L78 Accepts]: Start accepts. Automaton has 2589 states and 6689 transitions. Word has length 21 [2022-03-03 18:34:12,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:34:12,188 INFO L470 AbstractCegarLoop]: Abstraction has 2589 states and 6689 transitions. [2022-03-03 18:34:12,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-03-03 18:34:12,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2589 states and 6689 transitions. [2022-03-03 18:34:12,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-03 18:34:12,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:34:12,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:34:12,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 18:34:12,190 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 (and 1 more)] === [2022-03-03 18:34:12,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:34:12,190 INFO L85 PathProgramCache]: Analyzing trace with hash 849774069, now seen corresponding path program 1 times [2022-03-03 18:34:12,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:34:12,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807902174] [2022-03-03 18:34:12,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:12,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:34:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:34:12,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:34:12,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:34:12,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807902174] [2022-03-03 18:34:12,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807902174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:34:12,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:34:12,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 18:34:12,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892671169] [2022-03-03 18:34:12,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:34:12,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:34:12,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:34:12,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:34:12,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:34:12,234 INFO L87 Difference]: Start difference. First operand 2589 states and 6689 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-03-03 18:34:12,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:34:12,269 INFO L93 Difference]: Finished difference Result 2778 states and 7177 transitions. [2022-03-03 18:34:12,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:34:12,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-03-03 18:34:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:34:12,281 INFO L225 Difference]: With dead ends: 2778 [2022-03-03 18:34:12,281 INFO L226 Difference]: Without dead ends: 2743 [2022-03-03 18:34:12,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:34:12,282 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 42 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:34:12,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 151 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:34:12,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2022-03-03 18:34:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2599. [2022-03-03 18:34:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2581 states have (on average 2.606354126307633) internal successors, (6727), 2598 states have internal predecessors, (6727), 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) [2022-03-03 18:34:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 6727 transitions. [2022-03-03 18:34:12,344 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 6727 transitions. Word has length 22 [2022-03-03 18:34:12,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:34:12,344 INFO L470 AbstractCegarLoop]: Abstraction has 2599 states and 6727 transitions. [2022-03-03 18:34:12,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-03-03 18:34:12,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 6727 transitions. [2022-03-03 18:34:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-03 18:34:12,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:34:12,346 INFO L514 BasicCegarLoop]: 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] [2022-03-03 18:34:12,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 18:34:12,346 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-03-03 18:34:12,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:34:12,346 INFO L85 PathProgramCache]: Analyzing trace with hash 63309174, now seen corresponding path program 1 times [2022-03-03 18:34:12,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:34:12,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541672212] [2022-03-03 18:34:12,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:12,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:34:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:34:12,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:34:12,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:34:12,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541672212] [2022-03-03 18:34:12,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541672212] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:34:12,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327306983] [2022-03-03 18:34:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:12,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:34:12,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:34:12,399 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:34:12,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 18:34:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:34:12,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 18:34:12,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:34:12,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:34:12,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 18:34:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:34:12,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327306983] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 18:34:12,690 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 18:34:12,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-03 18:34:12,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391735189] [2022-03-03 18:34:12,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 18:34:12,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:34:12,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:34:12,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:34:12,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:34:12,692 INFO L87 Difference]: Start difference. First operand 2599 states and 6727 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 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) [2022-03-03 18:34:12,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:34:12,759 INFO L93 Difference]: Finished difference Result 1229 states and 3220 transitions. [2022-03-03 18:34:12,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:34:12,759 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-03-03 18:34:12,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:34:12,764 INFO L225 Difference]: With dead ends: 1229 [2022-03-03 18:34:12,764 INFO L226 Difference]: Without dead ends: 1229 [2022-03-03 18:34:12,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-03 18:34:12,765 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 201 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:34:12,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 256 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:34:12,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2022-03-03 18:34:12,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2022-03-03 18:34:12,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1225 states have (on average 2.6285714285714286) internal successors, (3220), 1228 states have internal predecessors, (3220), 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) [2022-03-03 18:34:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 3220 transitions. [2022-03-03 18:34:12,788 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 3220 transitions. Word has length 31 [2022-03-03 18:34:12,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:34:12,789 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 3220 transitions. [2022-03-03 18:34:12,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 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) [2022-03-03 18:34:12,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 3220 transitions. [2022-03-03 18:34:12,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-03 18:34:12,790 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:34:12,790 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:34:12,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-03 18:34:13,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:34:13,007 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-03-03 18:34:13,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:34:13,008 INFO L85 PathProgramCache]: Analyzing trace with hash 25788934, now seen corresponding path program 1 times [2022-03-03 18:34:13,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:34:13,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775345633] [2022-03-03 18:34:13,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:13,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:34:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:34:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-03 18:34:13,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:34:13,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775345633] [2022-03-03 18:34:13,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775345633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:34:13,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:34:13,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 18:34:13,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803398273] [2022-03-03 18:34:13,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:34:13,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:34:13,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:34:13,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:34:13,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:34:13,042 INFO L87 Difference]: Start difference. First operand 1229 states and 3220 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2022-03-03 18:34:13,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:34:13,057 INFO L93 Difference]: Finished difference Result 1262 states and 3294 transitions. [2022-03-03 18:34:13,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:34:13,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-03-03 18:34:13,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:34:13,062 INFO L225 Difference]: With dead ends: 1262 [2022-03-03 18:34:13,062 INFO L226 Difference]: Without dead ends: 1262 [2022-03-03 18:34:13,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:34:13,064 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 19 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:34:13,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 87 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:34:13,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-03-03 18:34:13,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1207. [2022-03-03 18:34:13,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1204 states have (on average 2.612126245847176) internal successors, (3145), 1206 states have internal predecessors, (3145), 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) [2022-03-03 18:34:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 3145 transitions. [2022-03-03 18:34:13,101 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 3145 transitions. Word has length 32 [2022-03-03 18:34:13,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:34:13,102 INFO L470 AbstractCegarLoop]: Abstraction has 1207 states and 3145 transitions. [2022-03-03 18:34:13,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2022-03-03 18:34:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 3145 transitions. [2022-03-03 18:34:13,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-03-03 18:34:13,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:34:13,109 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2022-03-03 18:34:13,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 18:34:13,110 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-03-03 18:34:13,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:34:13,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1212973435, now seen corresponding path program 1 times [2022-03-03 18:34:13,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:34:13,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468260207] [2022-03-03 18:34:13,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:34:13,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:34:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:34:13,124 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-03 18:34:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:34:13,134 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-03 18:34:13,134 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-03 18:34:13,134 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2022-03-03 18:34:13,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2022-03-03 18:34:13,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2022-03-03 18:34:13,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2022-03-03 18:34:13,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2022-03-03 18:34:13,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 18:34:13,135 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-03-03 18:34:13,137 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-03-03 18:34:13,137 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 18:34:13,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 06:34:13 BasicIcfg [2022-03-03 18:34:13,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 18:34:13,172 INFO L158 Benchmark]: Toolchain (without parser) took 3045.53ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 150.9MB in the beginning and 186.9MB in the end (delta: -36.0MB). Peak memory consumption was 6.8MB. Max. memory is 8.0GB. [2022-03-03 18:34:13,172 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 203.4MB. Free memory was 169.2MB in the beginning and 169.0MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 18:34:13,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.95ms. Allocated memory is still 203.4MB. Free memory was 150.7MB in the beginning and 162.9MB in the end (delta: -12.2MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. [2022-03-03 18:34:13,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.95ms. Allocated memory is still 203.4MB. Free memory was 162.9MB in the beginning and 160.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 18:34:13,172 INFO L158 Benchmark]: Boogie Preprocessor took 14.77ms. Allocated memory is still 203.4MB. Free memory was 160.8MB in the beginning and 159.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 18:34:13,173 INFO L158 Benchmark]: RCFGBuilder took 311.00ms. Allocated memory is still 203.4MB. Free memory was 159.3MB in the beginning and 148.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-03 18:34:13,173 INFO L158 Benchmark]: TraceAbstraction took 2226.71ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 147.8MB in the beginning and 186.9MB in the end (delta: -39.1MB). Peak memory consumption was 3.2MB. Max. memory is 8.0GB. [2022-03-03 18:34:13,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 203.4MB. Free memory was 169.2MB in the beginning and 169.0MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 443.95ms. Allocated memory is still 203.4MB. Free memory was 150.7MB in the beginning and 162.9MB in the end (delta: -12.2MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.95ms. Allocated memory is still 203.4MB. Free memory was 162.9MB in the beginning and 160.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.77ms. Allocated memory is still 203.4MB. Free memory was 160.8MB in the beginning and 159.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 311.00ms. Allocated memory is still 203.4MB. Free memory was 159.3MB in the beginning and 148.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2226.71ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 147.8MB in the beginning and 186.9MB in the end (delta: -39.1MB). Peak memory consumption was 3.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - 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: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L923] 0 pthread_t id[10]; VAL [id={2:0}, myglobal=0] [L924] 0 int i; VAL [id={2:0}, myglobal=0] [L925] 0 i=0 VAL [i=0, id={2:0}, myglobal=0] [L925] COND TRUE 0 i<10 VAL [i=0, id={2:0}, myglobal=0] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, i=0, id={2:0}, myglobal=0, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=-1] [L919] 1 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=43] [L925] 0 i++ VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=43] [L925] COND TRUE 0 i<10 VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=43] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=43, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=0] [L919] 2 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=44] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. - UnprovableResult [Line: 928]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 926]: 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, 64 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 211 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 148 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 74 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 300 mSDsluCounter, 654 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 341 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 326 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3341occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 286 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 254 SizeOfPredicates, 2 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 5/8 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 [2022-03-03 18:34:13,243 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...