/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.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/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 20:10:29,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 20:10:29,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 20:10:29,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 20:10:29,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 20:10:29,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 20:10:29,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 20:10:29,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 20:10:29,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 20:10:29,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 20:10:29,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 20:10:29,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 20:10:29,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 20:10:29,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 20:10:29,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 20:10:29,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 20:10:29,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 20:10:29,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 20:10:29,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 20:10:29,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 20:10:29,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 20:10:29,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 20:10:29,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 20:10:29,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 20:10:29,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 20:10:29,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 20:10:29,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 20:10:29,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 20:10:29,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 20:10:29,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 20:10:29,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 20:10:29,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 20:10:29,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 20:10:29,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 20:10:29,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 20:10:29,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 20:10:29,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 20:10:29,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 20:10:29,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 20:10:29,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 20:10:29,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 20:10:29,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 20:10:29,850 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 20:10:29,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 20:10:29,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 20:10:29,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 20:10:29,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 20:10:29,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 20:10:29,852 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 20:10:29,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 20:10:29,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 20:10:29,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 20:10:29,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 20:10:29,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 20:10:29,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 20:10:29,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 20:10:29,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 20:10:29,854 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 20:10:29,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 20:10:29,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 20:10:29,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 20:10:29,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 20:10:29,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 20:10:29,854 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 20:10:29,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 20:10:29,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:10:29,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 20:10:29,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 20:10:29,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 20:10:29,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 20:10:29,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 20:10:29,856 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 20:10:29,856 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 20:10:29,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 20:10:29,856 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-03-15 20:10:30,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 20:10:30,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 20:10:30,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 20:10:30,114 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 20:10:30,115 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 20:10:30,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2022-03-15 20:10:30,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ec90b987/db4876480a2b45df824898fbc8532c7b/FLAGdf1d44fb4 [2022-03-15 20:10:30,610 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 20:10:30,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2022-03-15 20:10:30,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ec90b987/db4876480a2b45df824898fbc8532c7b/FLAGdf1d44fb4 [2022-03-15 20:10:30,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ec90b987/db4876480a2b45df824898fbc8532c7b [2022-03-15 20:10:30,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 20:10:30,971 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 20:10:30,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 20:10:30,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 20:10:30,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 20:10:30,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:10:30" (1/1) ... [2022-03-15 20:10:30,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6753aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:30, skipping insertion in model container [2022-03-15 20:10:30,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:10:30" (1/1) ... [2022-03-15 20:10:30,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 20:10:31,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 20:10:31,176 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-03-15 20:10:31,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2022-03-15 20:10:31,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:10:31,338 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 20:10:31,362 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-03-15 20:10:31,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2022-03-15 20:10:31,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:10:31,408 INFO L208 MainTranslator]: Completed translation [2022-03-15 20:10:31,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31 WrapperNode [2022-03-15 20:10:31,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 20:10:31,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 20:10:31,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 20:10:31,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 20:10:31,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (1/1) ... [2022-03-15 20:10:31,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (1/1) ... [2022-03-15 20:10:31,465 INFO L137 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2022-03-15 20:10:31,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 20:10:31,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 20:10:31,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 20:10:31,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 20:10:31,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (1/1) ... [2022-03-15 20:10:31,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (1/1) ... [2022-03-15 20:10:31,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (1/1) ... [2022-03-15 20:10:31,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (1/1) ... [2022-03-15 20:10:31,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (1/1) ... [2022-03-15 20:10:31,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (1/1) ... [2022-03-15 20:10:31,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (1/1) ... [2022-03-15 20:10:31,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 20:10:31,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 20:10:31,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 20:10:31,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 20:10:31,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (1/1) ... [2022-03-15 20:10:31,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:10:31,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:10:31,535 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) [2022-03-15 20:10:31,547 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 [2022-03-15 20:10:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-03-15 20:10:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-03-15 20:10:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 20:10:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 20:10:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 20:10:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 20:10:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 20:10:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 20:10:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 20:10:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 20:10:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 20:10:31,578 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 20:10:31,735 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 20:10:31,737 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 20:10:31,972 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 20:10:32,026 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 20:10:32,027 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 20:10:32,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:10:32 BoogieIcfgContainer [2022-03-15 20:10:32,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 20:10:32,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 20:10:32,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 20:10:32,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 20:10:32,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 08:10:30" (1/3) ... [2022-03-15 20:10:32,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ef7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:10:32, skipping insertion in model container [2022-03-15 20:10:32,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:10:31" (2/3) ... [2022-03-15 20:10:32,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ef7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:10:32, skipping insertion in model container [2022-03-15 20:10:32,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:10:32" (3/3) ... [2022-03-15 20:10:32,034 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2022-03-15 20:10:32,038 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 20:10:32,038 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 20:10:32,039 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-03-15 20:10:32,039 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 20:10:32,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_w_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:10:32,068 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 20:10:32,102 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:10:32,107 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:10:32,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-03-15 20:10:32,118 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:10:32,126 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 74 transitions, 153 flow [2022-03-15 20:10:32,128 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 74 transitions, 153 flow [2022-03-15 20:10:32,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 153 flow [2022-03-15 20:10:32,175 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2022-03-15 20:10:32,176 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-03-15 20:10:32,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 71 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-03-15 20:10:32,182 INFO L116 LiptonReduction]: Number of co-enabled transitions 1110 [2022-03-15 20:10:33,804 INFO L131 LiptonReduction]: Checked pairs total: 2913 [2022-03-15 20:10:33,805 INFO L133 LiptonReduction]: Total number of compositions: 62 [2022-03-15 20:10:33,813 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 27 transitions, 59 flow [2022-03-15 20:10:33,838 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 166 states, 107 states have (on average 2.8411214953271027) internal successors, (304), 165 states have internal predecessors, (304), 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) [2022-03-15 20:10:33,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 107 states have (on average 2.8411214953271027) internal successors, (304), 165 states have internal predecessors, (304), 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) [2022-03-15 20:10:33,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-03-15 20:10:33,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:10:33,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2022-03-15 20:10:33,845 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-03-15 20:10:33,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:10:33,849 INFO L85 PathProgramCache]: Analyzing trace with hash 416128, now seen corresponding path program 1 times [2022-03-15 20:10:33,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:10:33,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79219503] [2022-03-15 20:10:33,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:10:33,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:10:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:10:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:10:33,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:10:33,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79219503] [2022-03-15 20:10:33,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79219503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:10:33,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:10:33,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:10:33,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [438302846] [2022-03-15 20:10:33,991 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:10:33,993 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:10:34,000 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2022-03-15 20:10:34,000 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:10:34,002 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:10:34,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 20:10:34,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:10:34,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 20:10:34,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 20:10:34,022 INFO L87 Difference]: Start difference. First operand has 166 states, 107 states have (on average 2.8411214953271027) internal successors, (304), 165 states have internal predecessors, (304), 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, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-03-15 20:10:34,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:10:34,042 INFO L93 Difference]: Finished difference Result 43 states and 71 transitions. [2022-03-15 20:10:34,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 20:10:34,044 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-03-15 20:10:34,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:10:34,049 INFO L225 Difference]: With dead ends: 43 [2022-03-15 20:10:34,049 INFO L226 Difference]: Without dead ends: 32 [2022-03-15 20:10:34,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 20:10:34,052 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:10:34,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:10:34,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-03-15 20:10:34,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-03-15 20:10:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 31 states have internal predecessors, (51), 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) [2022-03-15 20:10:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 51 transitions. [2022-03-15 20:10:34,077 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 51 transitions. Word has length 3 [2022-03-15 20:10:34,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:10:34,078 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 51 transitions. [2022-03-15 20:10:34,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-03-15 20:10:34,078 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 51 transitions. [2022-03-15 20:10:34,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:10:34,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:10:34,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:10:34,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 20:10:34,079 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-03-15 20:10:34,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:10:34,080 INFO L85 PathProgramCache]: Analyzing trace with hash -488639423, now seen corresponding path program 1 times [2022-03-15 20:10:34,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:10:34,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145250889] [2022-03-15 20:10:34,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:10:34,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:10:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:10:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:10:34,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:10:34,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145250889] [2022-03-15 20:10:34,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145250889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:10:34,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:10:34,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:10:34,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1437854968] [2022-03-15 20:10:34,126 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:10:34,127 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:10:34,128 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:10:34,128 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:10:34,128 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:10:34,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:10:34,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:10:34,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:10:34,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:10:34,130 INFO L87 Difference]: Start difference. First operand 32 states and 51 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-03-15 20:10:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:10:34,152 INFO L93 Difference]: Finished difference Result 34 states and 50 transitions. [2022-03-15 20:10:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:10:34,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-03-15 20:10:34,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:10:34,153 INFO L225 Difference]: With dead ends: 34 [2022-03-15 20:10:34,153 INFO L226 Difference]: Without dead ends: 22 [2022-03-15 20:10:34,154 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 [2022-03-15 20:10:34,155 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:10:34,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 3 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:10:34,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-03-15 20:10:34,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-03-15 20:10:34,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 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) [2022-03-15 20:10:34,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2022-03-15 20:10:34,164 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 6 [2022-03-15 20:10:34,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:10:34,164 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2022-03-15 20:10:34,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-03-15 20:10:34,164 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-03-15 20:10:34,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 20:10:34,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:10:34,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:10:34,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 20:10:34,165 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-03-15 20:10:34,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:10:34,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1366368604, now seen corresponding path program 1 times [2022-03-15 20:10:34,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:10:34,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120985271] [2022-03-15 20:10:34,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:10:34,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:10:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:10:34,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:10:34,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:10:34,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120985271] [2022-03-15 20:10:34,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120985271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:10:34,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:10:34,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 20:10:34,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1446410208] [2022-03-15 20:10:34,268 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:10:34,268 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:10:34,270 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 13 transitions. [2022-03-15 20:10:34,270 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:10:34,364 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [605#(not (= ~w~0 0))] [2022-03-15 20:10:34,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:10:34,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:10:34,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:10:34,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 20:10:34,365 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-03-15 20:10:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:10:34,388 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2022-03-15 20:10:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:10:34,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 8 [2022-03-15 20:10:34,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:10:34,390 INFO L225 Difference]: With dead ends: 22 [2022-03-15 20:10:34,390 INFO L226 Difference]: Without dead ends: 19 [2022-03-15 20:10:34,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 20:10:34,393 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:10:34,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 2 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:10:34,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-03-15 20:10:34,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-03-15 20:10:34,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 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) [2022-03-15 20:10:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-03-15 20:10:34,400 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 8 [2022-03-15 20:10:34,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:10:34,400 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-03-15 20:10:34,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-03-15 20:10:34,400 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-03-15 20:10:34,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 20:10:34,401 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:10:34,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:10:34,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 20:10:34,402 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-03-15 20:10:34,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:10:34,403 INFO L85 PathProgramCache]: Analyzing trace with hash -452082814, now seen corresponding path program 2 times [2022-03-15 20:10:34,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:10:34,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207929653] [2022-03-15 20:10:34,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:10:34,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:10:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:10:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:10:34,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:10:34,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207929653] [2022-03-15 20:10:34,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207929653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:10:34,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:10:34,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 20:10:34,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1640254500] [2022-03-15 20:10:34,440 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:10:34,441 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:10:34,442 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2022-03-15 20:10:34,442 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:10:34,443 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:10:34,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:10:34,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:10:34,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:10:34,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 20:10:34,444 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-03-15 20:10:34,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:10:34,450 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2022-03-15 20:10:34,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:10:34,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-03-15 20:10:34,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:10:34,451 INFO L225 Difference]: With dead ends: 5 [2022-03-15 20:10:34,451 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 20:10:34,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 20:10:34,452 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:10:34,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:10:34,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 20:10:34,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 20:10:34,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:10:34,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 20:10:34,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-03-15 20:10:34,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:10:34,453 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 20:10:34,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-03-15 20:10:34,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 20:10:34,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 20:10:34,456 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2022-03-15 20:10:34,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2022-03-15 20:10:34,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2022-03-15 20:10:34,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2022-03-15 20:10:34,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2022-03-15 20:10:34,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2022-03-15 20:10:34,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2022-03-15 20:10:34,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2022-03-15 20:10:34,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2022-03-15 20:10:34,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2022-03-15 20:10:34,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2022-03-15 20:10:34,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2022-03-15 20:10:34,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2022-03-15 20:10:34,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2022-03-15 20:10:34,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 20 remaining) [2022-03-15 20:10:34,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2022-03-15 20:10:34,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2022-03-15 20:10:34,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2022-03-15 20:10:34,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2022-03-15 20:10:34,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2022-03-15 20:10:34,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 20:10:34,462 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-03-15 20:10:34,465 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 20:10:34,465 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 20:10:34,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 08:10:34 BasicIcfg [2022-03-15 20:10:34,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 20:10:34,468 INFO L158 Benchmark]: Toolchain (without parser) took 3496.81ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 137.8MB in the beginning and 132.2MB in the end (delta: 5.6MB). Peak memory consumption was 44.6MB. Max. memory is 8.0GB. [2022-03-15 20:10:34,468 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory was 155.4MB in the beginning and 155.3MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 20:10:34,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.39ms. Allocated memory is still 188.7MB. Free memory was 137.6MB in the beginning and 155.0MB in the end (delta: -17.5MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. [2022-03-15 20:10:34,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.71ms. Allocated memory is still 188.7MB. Free memory was 155.0MB in the beginning and 152.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 20:10:34,469 INFO L158 Benchmark]: Boogie Preprocessor took 38.94ms. Allocated memory is still 188.7MB. Free memory was 152.4MB in the beginning and 151.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 20:10:34,470 INFO L158 Benchmark]: RCFGBuilder took 523.31ms. Allocated memory is still 188.7MB. Free memory was 151.4MB in the beginning and 133.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-03-15 20:10:34,470 INFO L158 Benchmark]: TraceAbstraction took 2437.64ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 132.5MB in the beginning and 132.2MB in the end (delta: 322.5kB). Peak memory consumption was 39.6MB. Max. memory is 8.0GB. [2022-03-15 20:10:34,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory was 155.4MB in the beginning and 155.3MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 435.39ms. Allocated memory is still 188.7MB. Free memory was 137.6MB in the beginning and 155.0MB in the end (delta: -17.5MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.71ms. Allocated memory is still 188.7MB. Free memory was 155.0MB in the beginning and 152.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.94ms. Allocated memory is still 188.7MB. Free memory was 152.4MB in the beginning and 151.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 523.31ms. Allocated memory is still 188.7MB. Free memory was 151.4MB in the beginning and 133.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 2437.64ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 132.5MB in the beginning and 132.2MB in the end (delta: 322.5kB). Peak memory consumption was 39.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 77 PlacesBefore, 31 PlacesAfterwards, 74 TransitionsBefore, 27 TransitionsAfterwards, 1110 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 62 TotalNumberOfCompositions, 2913 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1083, positive: 924, positive conditional: 0, positive unconditional: 924, negative: 159, negative conditional: 0, negative unconditional: 159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 521, positive: 489, positive conditional: 0, positive unconditional: 489, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1083, positive: 435, positive conditional: 0, positive unconditional: 435, negative: 127, negative conditional: 0, negative unconditional: 127, unknown: 521, unknown conditional: 0, unknown unconditional: 521] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - 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 - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 20:10:34,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...