/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/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE -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/weaver/popl20-prod-cons-eq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-44940e9-m [2022-11-09 17:13:24,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-09 17:13:24,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-09 17:13:24,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-09 17:13:24,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-09 17:13:24,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-09 17:13:24,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-09 17:13:24,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-09 17:13:24,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-09 17:13:24,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-09 17:13:24,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-09 17:13:24,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-09 17:13:24,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-09 17:13:24,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-09 17:13:24,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-09 17:13:24,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-09 17:13:24,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-09 17:13:24,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-09 17:13:24,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-09 17:13:24,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-09 17:13:24,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-09 17:13:24,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-09 17:13:24,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-09 17:13:24,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-09 17:13:24,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-09 17:13:24,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-09 17:13:24,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-09 17:13:24,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-09 17:13:24,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-09 17:13:24,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-09 17:13:24,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-09 17:13:24,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-09 17:13:24,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-09 17:13:24,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-09 17:13:24,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-09 17:13:24,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-09 17:13:24,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-09 17:13:24,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-09 17:13:24,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-09 17:13:24,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-09 17:13:24,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-09 17:13:24,298 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-09 17:13:24,321 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-09 17:13:24,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-09 17:13:24,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-09 17:13:24,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-09 17:13:24,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-09 17:13:24,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-09 17:13:24,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-09 17:13:24,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-09 17:13:24,324 INFO L138 SettingsManager]: * Use SBE=true [2022-11-09 17:13:24,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-09 17:13:24,324 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-09 17:13:24,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-09 17:13:24,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-09 17:13:24,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-09 17:13:24,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-09 17:13:24,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-09 17:13:24,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-09 17:13:24,325 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-09 17:13:24,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-09 17:13:24,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-09 17:13:24,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-09 17:13:24,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-09 17:13:24,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-09 17:13:24,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-09 17:13:24,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-09 17:13:24,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-09 17:13:24,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-09 17:13:24,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-09 17:13:24,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-09 17:13:24,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-09 17:13:24,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-09 17:13:24,326 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-09 17:13:24,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-09 17:13:24,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-09 17:13:24,327 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-09 17:13:24,327 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-09 17:13:24,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-11-09 17:13:24,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-09 17:13:24,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-09 17:13:24,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-09 17:13:24,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-09 17:13:24,536 INFO L275 PluginConnector]: CDTParser initialized [2022-11-09 17:13:24,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-prod-cons-eq.wvr.c [2022-11-09 17:13:24,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f2e9909/ec7fa69f2c4f43259ea5cda59774033c/FLAGc072ee563 [2022-11-09 17:13:24,919 INFO L306 CDTParser]: Found 1 translation units. [2022-11-09 17:13:24,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons-eq.wvr.c [2022-11-09 17:13:24,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f2e9909/ec7fa69f2c4f43259ea5cda59774033c/FLAGc072ee563 [2022-11-09 17:13:25,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f2e9909/ec7fa69f2c4f43259ea5cda59774033c [2022-11-09 17:13:25,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-09 17:13:25,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-09 17:13:25,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-09 17:13:25,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-09 17:13:25,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-09 17:13:25,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@513f1e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25, skipping insertion in model container [2022-11-09 17:13:25,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-09 17:13:25,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-09 17:13:25,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-09 17:13:25,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-09 17:13:25,575 INFO L203 MainTranslator]: Completed pre-run [2022-11-09 17:13:25,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-09 17:13:25,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-09 17:13:25,626 INFO L208 MainTranslator]: Completed translation [2022-11-09 17:13:25,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25 WrapperNode [2022-11-09 17:13:25,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-09 17:13:25,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-09 17:13:25,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-09 17:13:25,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-09 17:13:25,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,684 INFO L138 Inliner]: procedures = 28, calls = 80, calls flagged for inlining = 26, calls inlined = 32, statements flattened = 819 [2022-11-09 17:13:25,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-09 17:13:25,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-09 17:13:25,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-09 17:13:25,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-09 17:13:25,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-09 17:13:25,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-09 17:13:25,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-09 17:13:25,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-09 17:13:25,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (1/1) ... [2022-11-09 17:13:25,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-09 17:13:25,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-09 17:13:25,833 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) [2022-11-09 17:13:25,852 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 [2022-11-09 17:13:25,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-09 17:13:25,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-09 17:13:25,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-09 17:13:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-09 17:13:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-09 17:13:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-09 17:13:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-09 17:13:25,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-09 17:13:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-09 17:13:25,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-09 17:13:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-09 17:13:25,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-09 17:13:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-09 17:13:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-09 17:13:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-09 17:13:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-09 17:13:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-09 17:13:25,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-09 17:13:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-09 17:13:25,875 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-09 17:13:25,970 INFO L235 CfgBuilder]: Building ICFG [2022-11-09 17:13:25,971 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-09 17:13:26,808 INFO L276 CfgBuilder]: Performing block encoding [2022-11-09 17:13:27,471 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-09 17:13:27,471 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-09 17:13:27,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:13:27 BoogieIcfgContainer [2022-11-09 17:13:27,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-09 17:13:27,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-09 17:13:27,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-09 17:13:27,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-09 17:13:27,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:13:25" (1/3) ... [2022-11-09 17:13:27,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502f7269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:13:27, skipping insertion in model container [2022-11-09 17:13:27,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:25" (2/3) ... [2022-11-09 17:13:27,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502f7269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:13:27, skipping insertion in model container [2022-11-09 17:13:27,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:13:27" (3/3) ... [2022-11-09 17:13:27,483 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2022-11-09 17:13:27,492 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-09 17:13:27,499 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-09 17:13:27,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 130 error locations. [2022-11-09 17:13:27,500 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-09 17:13:27,734 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-09 17:13:27,782 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-09 17:13:27,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-09 17:13:27,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-09 17:13:27,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-09 17:13:27,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-09 17:13:27,838 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-09 17:13:27,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2022-11-09 17:13:27,862 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@146e70ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-09 17:13:27,862 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-09 17:13:28,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2022-11-09 17:13:28,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 17:13:28,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2138514160, now seen corresponding path program 1 times [2022-11-09 17:13:28,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-09 17:13:28,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181512002] [2022-11-09 17:13:28,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 17:13:28,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 17:13:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 17:13:28,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 17:13:28,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-09 17:13:28,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181512002] [2022-11-09 17:13:28,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181512002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 17:13:28,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 17:13:28,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-09 17:13:28,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287869393] [2022-11-09 17:13:28,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 17:13:28,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-09 17:13:28,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-09 17:13:29,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-09 17:13:29,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-09 17:13:29,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 17:13:29,013 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 17:13:29,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 142.5) internal successors, (285), 2 states have internal predecessors, (285), 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) [2022-11-09 17:13:29,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.