/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 --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps '"3,2 1,1 2,2"' --traceabstraction.defines.what.statements.are.considered.a.step.in.por GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-20 05:21:11,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-20 05:21:11,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-20 05:21:11,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-20 05:21:11,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-20 05:21:11,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-20 05:21:11,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-20 05:21:11,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-20 05:21:11,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-20 05:21:11,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-20 05:21:11,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-20 05:21:11,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-20 05:21:11,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-20 05:21:11,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-20 05:21:11,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-20 05:21:11,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-20 05:21:11,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-20 05:21:11,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-20 05:21:11,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-20 05:21:11,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-20 05:21:11,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-20 05:21:11,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-20 05:21:11,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-20 05:21:11,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-20 05:21:11,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-20 05:21:11,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-20 05:21:11,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-20 05:21:11,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-20 05:21:11,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-20 05:21:11,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-20 05:21:11,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-20 05:21:11,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-20 05:21:11,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-20 05:21:11,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-20 05:21:11,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-20 05:21:11,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-20 05:21:11,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-20 05:21:11,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-20 05:21:11,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-20 05:21:11,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-20 05:21:11,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-20 05:21:12,000 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-20 05:21:12,031 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-20 05:21:12,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-20 05:21:12,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-20 05:21:12,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-20 05:21:12,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-20 05:21:12,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-20 05:21:12,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-20 05:21:12,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-20 05:21:12,033 INFO L138 SettingsManager]: * Use SBE=true [2023-05-20 05:21:12,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-20 05:21:12,034 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-20 05:21:12,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-20 05:21:12,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-20 05:21:12,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-20 05:21:12,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-20 05:21:12,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-20 05:21:12,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-20 05:21:12,035 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-20 05:21:12,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-20 05:21:12,035 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-20 05:21:12,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-20 05:21:12,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-20 05:21:12,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-20 05:21:12,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-20 05:21:12,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-20 05:21:12,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-20 05:21:12,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-20 05:21:12,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-20 05:21:12,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-20 05:21:12,038 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-20 05:21:12,038 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-20 05:21:12,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-20 05:21:12,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-20 05:21:12,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-20 05:21:12,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-20 05:21:12,039 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-20 05:21:12,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-20 05:21:12,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-20 05:21:12,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-20 05:21:12,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-20 05:21:12,329 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-20 05:21:12,329 INFO L275 PluginConnector]: CDTParser initialized [2023-05-20 05:21:12,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c [2023-05-20 05:21:12,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0965bfe/818e3bd883044c2987b8b3fa7515c58e/FLAG43659eaee [2023-05-20 05:21:12,751 INFO L306 CDTParser]: Found 1 translation units. [2023-05-20 05:21:12,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c [2023-05-20 05:21:12,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0965bfe/818e3bd883044c2987b8b3fa7515c58e/FLAG43659eaee [2023-05-20 05:21:13,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0965bfe/818e3bd883044c2987b8b3fa7515c58e [2023-05-20 05:21:13,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-20 05:21:13,174 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-20 05:21:13,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-20 05:21:13,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-20 05:21:13,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-20 05:21:13,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b43839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13, skipping insertion in model container [2023-05-20 05:21:13,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-20 05:21:13,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-20 05:21:13,357 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-bad-counter-queue.wvr.c[2428,2441] [2023-05-20 05:21:13,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-20 05:21:13,372 INFO L203 MainTranslator]: Completed pre-run [2023-05-20 05:21:13,388 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-bad-counter-queue.wvr.c[2428,2441] [2023-05-20 05:21:13,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-20 05:21:13,407 INFO L208 MainTranslator]: Completed translation [2023-05-20 05:21:13,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13 WrapperNode [2023-05-20 05:21:13,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-20 05:21:13,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-20 05:21:13,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-20 05:21:13,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-20 05:21:13,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,441 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-05-20 05:21:13,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-20 05:21:13,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-20 05:21:13,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-20 05:21:13,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-20 05:21:13,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,464 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-20 05:21:13,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-20 05:21:13,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-20 05:21:13,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-20 05:21:13,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (1/1) ... [2023-05-20 05:21:13,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-20 05:21:13,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 05:21:13,504 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) [2023-05-20 05:21:13,512 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 [2023-05-20 05:21:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-20 05:21:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-20 05:21:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-20 05:21:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-20 05:21:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-20 05:21:13,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-20 05:21:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-20 05:21:13,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-20 05:21:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-20 05:21:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-20 05:21:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-20 05:21:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-20 05:21:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-20 05:21:13,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-20 05:21:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-20 05:21:13,542 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-20 05:21:13,621 INFO L235 CfgBuilder]: Building ICFG [2023-05-20 05:21:13,622 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-20 05:21:13,909 INFO L276 CfgBuilder]: Performing block encoding [2023-05-20 05:21:14,054 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-20 05:21:14,054 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-20 05:21:14,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.05 05:21:14 BoogieIcfgContainer [2023-05-20 05:21:14,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-20 05:21:14,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-20 05:21:14,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-20 05:21:14,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-20 05:21:14,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.05 05:21:13" (1/3) ... [2023-05-20 05:21:14,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bf46fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.05 05:21:14, skipping insertion in model container [2023-05-20 05:21:14,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.05 05:21:13" (2/3) ... [2023-05-20 05:21:14,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bf46fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.05 05:21:14, skipping insertion in model container [2023-05-20 05:21:14,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.05 05:21:14" (3/3) ... [2023-05-20 05:21:14,078 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue.wvr.c [2023-05-20 05:21:14,086 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-20 05:21:14,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-20 05:21:14,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-20 05:21:14,096 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-20 05:21:14,165 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-20 05:21:14,201 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 05:21:14,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-20 05:21:14,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 05:21:14,203 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) [2023-05-20 05:21:14,207 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 [2023-05-20 05:21:14,249 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-20 05:21:14,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-20 05:21:14,270 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;@7f4c8e54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-20 05:21:14,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-20 05:21:14,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 05:21:14,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 05:21:14,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1490182428, now seen corresponding path program 1 times [2023-05-20 05:21:14,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 05:21:14,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35711433] [2023-05-20 05:21:14,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 05:21:14,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 05:21:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 05:21:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 05:21:14,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 05:21:14,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35711433] [2023-05-20 05:21:14,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35711433] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 05:21:14,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 05:21:14,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-20 05:21:14,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194831341] [2023-05-20 05:21:14,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 05:21:14,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-20 05:21:14,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 05:21:14,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-20 05:21:14,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-20 05:21:14,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:14,771 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 05:21:14,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 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) [2023-05-20 05:21:14,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:14,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:14,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-20 05:21:14,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 05:21:14,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 05:21:14,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1622853926, now seen corresponding path program 1 times [2023-05-20 05:21:14,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 05:21:14,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019215014] [2023-05-20 05:21:14,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 05:21:14,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 05:21:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 05:21:15,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-20 05:21:15,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 05:21:15,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019215014] [2023-05-20 05:21:15,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019215014] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-20 05:21:15,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-20 05:21:15,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-20 05:21:15,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615472712] [2023-05-20 05:21:15,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 05:21:15,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-20 05:21:15,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 05:21:15,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-20 05:21:15,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-05-20 05:21:15,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:15,099 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 05:21:15,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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) [2023-05-20 05:21:15,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:15,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:15,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-20 05:21:15,215 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 05:21:15,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 05:21:15,216 INFO L85 PathProgramCache]: Analyzing trace with hash 532967160, now seen corresponding path program 1 times [2023-05-20 05:21:15,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 05:21:15,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279668752] [2023-05-20 05:21:15,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 05:21:15,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 05:21:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 05:21:15,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 05:21:15,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 05:21:15,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279668752] [2023-05-20 05:21:15,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279668752] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 05:21:15,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676628358] [2023-05-20 05:21:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 05:21:15,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 05:21:15,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 05:21:15,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 05:21:15,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-20 05:21:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 05:21:15,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-20 05:21:15,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 05:21:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 05:21:15,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 05:21:15,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 05:21:15,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676628358] provided 1 perfect and 1 imperfect interpolant sequences [2023-05-20 05:21:15,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-05-20 05:21:15,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2023-05-20 05:21:15,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496072790] [2023-05-20 05:21:15,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 05:21:15,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-20 05:21:15,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 05:21:15,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-20 05:21:15,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-05-20 05:21:15,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:15,969 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 05:21:15,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2023-05-20 05:21:15,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:15,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:15,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:16,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:16,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:16,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:16,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-05-20 05:21:16,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-05-20 05:21:16,357 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 05:21:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 05:21:16,358 INFO L85 PathProgramCache]: Analyzing trace with hash -264566508, now seen corresponding path program 1 times [2023-05-20 05:21:16,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 05:21:16,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716782103] [2023-05-20 05:21:16,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 05:21:16,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 05:21:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 05:21:16,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-20 05:21:16,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 05:21:16,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716782103] [2023-05-20 05:21:16,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716782103] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 05:21:16,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173997840] [2023-05-20 05:21:16,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 05:21:16,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 05:21:16,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 05:21:16,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 05:21:16,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-20 05:21:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 05:21:16,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-20 05:21:16,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 05:21:16,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-20 05:21:16,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 05:21:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-20 05:21:16,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173997840] provided 1 perfect and 1 imperfect interpolant sequences [2023-05-20 05:21:16,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-05-20 05:21:16,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2023-05-20 05:21:16,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073235748] [2023-05-20 05:21:16,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-20 05:21:16,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-20 05:21:16,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 05:21:16,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-20 05:21:16,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-05-20 05:21:16,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:16,911 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 05:21:16,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2023-05-20 05:21:16,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:16,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:16,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:16,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:17,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:17,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:17,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:17,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-20 05:21:17,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 05:21:17,257 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 05:21:17,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 05:21:17,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1679559966, now seen corresponding path program 1 times [2023-05-20 05:21:17,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 05:21:17,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825586193] [2023-05-20 05:21:17,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 05:21:17,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 05:21:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 05:21:17,503 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 05:21:17,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 05:21:17,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825586193] [2023-05-20 05:21:17,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825586193] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 05:21:17,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822421975] [2023-05-20 05:21:17,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 05:21:17,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 05:21:17,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 05:21:17,505 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 05:21:17,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-20 05:21:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 05:21:17,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-20 05:21:17,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 05:21:17,833 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 05:21:17,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 05:21:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-20 05:21:18,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822421975] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-20 05:21:18,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-20 05:21:18,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2023-05-20 05:21:18,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312401583] [2023-05-20 05:21:18,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-20 05:21:18,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-05-20 05:21:18,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 05:21:18,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-05-20 05:21:18,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-05-20 05:21:18,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:18,047 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 05:21:18,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.916666666666667) internal successors, (190), 24 states have internal predecessors, (190), 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) [2023-05-20 05:21:18,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:18,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:18,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:18,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:18,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:18,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-20 05:21:18,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-20 05:21:18,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 05:21:18,525 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 05:21:18,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 05:21:18,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1479018448, now seen corresponding path program 2 times [2023-05-20 05:21:18,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 05:21:18,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872722956] [2023-05-20 05:21:18,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 05:21:18,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 05:21:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-20 05:21:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-05-20 05:21:18,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-20 05:21:18,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872722956] [2023-05-20 05:21:18,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872722956] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-20 05:21:18,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914422985] [2023-05-20 05:21:18,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-20 05:21:18,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 05:21:18,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-20 05:21:18,780 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-20 05:21:18,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-20 05:21:18,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-20 05:21:18,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-20 05:21:18,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 8 conjunts are in the unsatisfiable core [2023-05-20 05:21:18,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-20 05:21:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-20 05:21:19,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-20 05:21:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-20 05:21:19,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914422985] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-20 05:21:19,129 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-20 05:21:19,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 24 [2023-05-20 05:21:19,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715688163] [2023-05-20 05:21:19,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-20 05:21:19,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-05-20 05:21:19,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-20 05:21:19,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-05-20 05:21:19,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2023-05-20 05:21:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:19,131 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-20 05:21:19,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 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) [2023-05-20 05:21:19,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:19,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:19,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:19,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:19,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-20 05:21:19,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:19,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-20 05:21:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-20 05:21:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-20 05:21:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-05-20 05:21:19,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-20 05:21:19,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-20 05:21:19,931 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-20 05:21:19,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-20 05:21:19,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1832508086, now seen corresponding path program 3 times [2023-05-20 05:21:19,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-20 05:21:19,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857648263] [2023-05-20 05:21:19,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-20 05:21:19,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-20 05:21:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-20 05:21:20,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-20 05:21:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-20 05:21:20,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-20 05:21:20,124 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-20 05:21:20,125 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-05-20 05:21:20,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-05-20 05:21:20,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-05-20 05:21:20,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-05-20 05:21:20,139 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-05-20 05:21:20,144 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-20 05:21:20,144 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-20 05:21:20,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.05 05:21:20 BasicIcfg [2023-05-20 05:21:20,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-20 05:21:20,218 INFO L158 Benchmark]: Toolchain (without parser) took 7044.00ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 123.6MB in the beginning and 144.7MB in the end (delta: -21.2MB). Peak memory consumption was 27.6MB. Max. memory is 8.0GB. [2023-05-20 05:21:20,218 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 182.5MB. Free memory was 141.0MB in the beginning and 140.9MB in the end (delta: 77.6kB). There was no memory consumed. Max. memory is 8.0GB. [2023-05-20 05:21:20,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.75ms. Allocated memory is still 182.5MB. Free memory was 123.4MB in the beginning and 154.8MB in the end (delta: -31.3MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2023-05-20 05:21:20,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.83ms. Allocated memory is still 182.5MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-20 05:21:20,219 INFO L158 Benchmark]: Boogie Preprocessor took 25.45ms. Allocated memory is still 182.5MB. Free memory was 152.7MB in the beginning and 151.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-20 05:21:20,219 INFO L158 Benchmark]: RCFGBuilder took 588.41ms. Allocated memory is still 182.5MB. Free memory was 151.2MB in the beginning and 125.2MB in the end (delta: 26.0MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-05-20 05:21:20,220 INFO L158 Benchmark]: TraceAbstraction took 6159.19ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 123.9MB in the beginning and 144.7MB in the end (delta: -20.9MB). Peak memory consumption was 28.1MB. Max. memory is 8.0GB. [2023-05-20 05:21:20,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 182.5MB. Free memory was 141.0MB in the beginning and 140.9MB in the end (delta: 77.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 230.75ms. Allocated memory is still 182.5MB. Free memory was 123.4MB in the beginning and 154.8MB in the end (delta: -31.3MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.83ms. Allocated memory is still 182.5MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.45ms. Allocated memory is still 182.5MB. Free memory was 152.7MB in the beginning and 151.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 588.41ms. Allocated memory is still 182.5MB. Free memory was 151.2MB in the beginning and 125.2MB in the end (delta: 26.0MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 6159.19ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 123.9MB in the beginning and 144.7MB in the end (delta: -20.9MB). Peak memory consumption was 28.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1391, independent: 1102, independent conditional: 248, independent unconditional: 854, dependent: 289, dependent conditional: 274, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1137, independent: 1102, independent conditional: 248, independent unconditional: 854, dependent: 35, dependent conditional: 20, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1137, independent: 1102, independent conditional: 248, independent unconditional: 854, dependent: 35, dependent conditional: 20, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1216, independent: 1102, independent conditional: 0, independent unconditional: 1102, dependent: 114, dependent conditional: 79, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1216, independent: 1102, independent conditional: 0, independent unconditional: 1102, dependent: 114, dependent conditional: 10, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1216, independent: 1102, independent conditional: 0, independent unconditional: 1102, dependent: 114, dependent conditional: 10, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 751, independent: 731, independent conditional: 0, independent unconditional: 731, dependent: 20, dependent conditional: 5, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 751, independent: 730, independent conditional: 0, independent unconditional: 730, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 5, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 5, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 179, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 127, dependent conditional: 31, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1216, independent: 371, independent conditional: 0, independent unconditional: 371, dependent: 94, dependent conditional: 5, dependent unconditional: 89, unknown: 751, unknown conditional: 5, unknown unconditional: 746] , Statistics on independence cache: Total cache size (in pairs): 751, Positive cache size: 731, Positive conditional cache size: 0, Positive unconditional cache size: 731, Negative cache size: 20, Negative conditional cache size: 5, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 69, Maximal queried relation: 5, Independence queries for same thread: 254 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 156, Number of trivial persistent sets: 121, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 869, independent: 854, independent conditional: 0, independent unconditional: 854, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1391, independent: 1102, independent conditional: 248, independent unconditional: 854, dependent: 289, dependent conditional: 274, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1137, independent: 1102, independent conditional: 248, independent unconditional: 854, dependent: 35, dependent conditional: 20, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1137, independent: 1102, independent conditional: 248, independent unconditional: 854, dependent: 35, dependent conditional: 20, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1216, independent: 1102, independent conditional: 0, independent unconditional: 1102, dependent: 114, dependent conditional: 79, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1216, independent: 1102, independent conditional: 0, independent unconditional: 1102, dependent: 114, dependent conditional: 10, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1216, independent: 1102, independent conditional: 0, independent unconditional: 1102, dependent: 114, dependent conditional: 10, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 751, independent: 731, independent conditional: 0, independent unconditional: 731, dependent: 20, dependent conditional: 5, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 751, independent: 730, independent conditional: 0, independent unconditional: 730, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 5, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 5, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 179, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 127, dependent conditional: 31, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1216, independent: 371, independent conditional: 0, independent unconditional: 371, dependent: 94, dependent conditional: 5, dependent unconditional: 89, unknown: 751, unknown conditional: 5, unknown unconditional: 746] , Statistics on independence cache: Total cache size (in pairs): 751, Positive cache size: 731, Positive conditional cache size: 0, Positive unconditional cache size: 731, Negative cache size: 20, Negative conditional cache size: 5, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 69, Maximal queried relation: 5, Independence queries for same thread: 254 - CounterExampleResult [Line: 87]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L41] 0 int* A; VAL [A={0:0}] [L42] 0 int counter, N; VAL [A={0:0}, counter=0, N=0] [L75] 0 pthread_t t1, t2; VAL [A={0:0}, counter=0, N=0, t1={5:0}, t2={3:0}] [L77] 0 N = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=2, A={0:0}, counter=0, N=2, t1={5:0}, t2={3:0}] [L78] CALL, EXPR 0 create_fresh_int_array(N) [L93] CALL 0 assume_abort_if_not(size >= 0) [L38] COND FALSE 0 !(!cond) VAL [\old(cond)=1, A={0:0}, cond=1, counter=0, N=2] [L93] RET 0 assume_abort_if_not(size >= 0) [L94] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L38] COND FALSE 0 !(!cond) VAL [\old(cond)=1, A={0:0}, cond=1, counter=0, N=2] [L94] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L96] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); VAL [\old(size)=2, A={0:0}, arr={-3:0}, counter=0, malloc(sizeof(int) * (size_t)size)={-3:0}, N=2, size=2] [L97] 0 int i = 0; VAL [\old(size)=2, A={0:0}, arr={-3:0}, counter=0, i=0, N=2, size=2] [L97] COND TRUE 0 i < size VAL [\old(size)=2, A={0:0}, arr={-3:0}, counter=0, i=0, N=2, size=2] [L98] 0 arr[i] = __VERIFIER_nondet_int() VAL [\old(size)=2, __VERIFIER_nondet_int()=-7, A={0:0}, arr={-3:0}, counter=0, i=0, N=2, size=2] [L97] 0 i++ VAL [\old(size)=2, A={0:0}, arr={-3:0}, counter=0, i=1, N=2, size=2] [L97] COND TRUE 0 i < size VAL [\old(size)=2, A={0:0}, arr={-3:0}, counter=0, i=1, N=2, size=2] [L98] 0 arr[i] = __VERIFIER_nondet_int() VAL [\old(size)=2, __VERIFIER_nondet_int()=-6, A={0:0}, arr={-3:0}, counter=0, i=1, N=2, size=2] [L97] 0 i++ VAL [\old(size)=2, A={0:0}, arr={-3:0}, counter=0, i=2, N=2, size=2] [L97] COND FALSE 0 !(i < size) VAL [\old(size)=2, A={0:0}, arr={-3:0}, counter=0, i=2, N=2, size=2] [L100] 0 return arr; VAL [\old(size)=2, \result={-3:0}, A={0:0}, arr={-3:0}, counter=0, i=2, N=2, size=2] [L78] RET, EXPR 0 create_fresh_int_array(N) [L78] 0 A = create_fresh_int_array(N) VAL [A={-3:0}, counter=0, create_fresh_int_array(N)={-3:0}, N=2, t1={5:0}, t2={3:0}] [L81] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [A={-3:0}, counter=0, N=2, pthread_create(&t1, 0, thread1, 0)=-2, t1={5:0}, t2={3:0}] [L49] 1 int i=0; VAL [A={-3:0}, counter=0, i=0, N=2] [L49] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L38] COND FALSE 1 !(!cond) [L110] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L111] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 1 !(!cond) [L111] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L112] 1 return a + b; [L51] RET, EXPR 1 plus(counter, A[i]) [L51] 1 int tmp = plus(counter, A[i]); [L82] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [A={-3:0}, counter=0, N=2, pthread_create(&t2, 0, thread2, 0)=-1, t1={5:0}, t2={3:0}] [L62] 2 int i=0; VAL [A={-3:0}, counter=0, i=0, N=2] [L62] COND TRUE 2 i= b - 2147483648) [L38] COND FALSE 2 !(!cond) [L104] RET 2 assume_abort_if_not(b <= 0 || a >= b - 2147483648) [L105] CALL 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L38] COND FALSE 2 !(!cond) [L105] RET 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L106] 2 return a - b; [L64] RET, EXPR 2 minus(counter, A[i]) [L64] 2 int tmp = minus(counter, A[i]); [L83] 0 \read(t1) VAL [\read(t1)=-2, A={-3:0}, counter=0, N=2, t1={5:0}, t2={3:0}] [L54] 1 counter = tmp VAL [A={-3:0}, counter=-7, i=0, N=2, tmp=-7] [L67] 2 counter = tmp VAL [A={-3:0}, counter=7, i=0, N=2, tmp=7] [L62] 2 i++ VAL [A={-3:0}, counter=7, i=1, N=2, tmp=7] [L62] COND TRUE 2 i= b - 2147483648) [L38] COND FALSE 2 !(!cond) [L104] RET 2 assume_abort_if_not(b <= 0 || a >= b - 2147483648) [L105] CALL 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L38] COND FALSE 2 !(!cond) [L105] RET 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L106] 2 return a - b; [L64] RET, EXPR 2 minus(counter, A[i]) [L64] 2 int tmp = minus(counter, A[i]); [L67] 2 counter = tmp VAL [A={-3:0}, counter=13, i=1, N=2, tmp=13] [L51] EXPR 1 A[i] [L51] CALL, EXPR 1 plus(counter, A[i]) [L110] CALL 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L38] COND FALSE 1 !(!cond) [L110] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L111] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 1 !(!cond) [L111] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L112] 1 return a + b; [L51] RET, EXPR 1 plus(counter, A[i]) [L51] 1 int tmp = plus(counter, A[i]); [L62] 2 i++ VAL [A={-3:0}, counter=13, i=2, N=2, tmp=13] [L62] COND FALSE 2 !(i