/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONLY_ONE_CEGAR -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 23:09:44,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 23:09:44,898 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-07 23:09:44,902 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 23:09:44,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 23:09:44,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 23:09:44,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 23:09:44,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 23:09:44,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 23:09:44,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 23:09:44,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 23:09:44,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 23:09:44,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 23:09:44,938 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 23:09:44,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 23:09:44,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 23:09:44,939 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 23:09:44,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 23:09:44,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 23:09:44,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 23:09:44,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 23:09:44,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 23:09:44,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 23:09:44,941 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 23:09:44,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 23:09:44,941 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 23:09:44,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 23:09:44,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 23:09:44,942 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 23:09:44,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 23:09:44,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 23:09:44,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 23:09:44,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 23:09:44,944 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-07 23:09:44,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 23:09:44,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 23:09:44,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 23:09:44,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 23:09:44,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 23:09:44,945 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 23:09:44,945 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-07 23:09:44,945 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONLY_ONE_CEGAR [2023-09-07 23:09:45,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 23:09:45,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 23:09:45,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 23:09:45,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 23:09:45,192 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 23:09:45,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i [2023-09-07 23:09:46,344 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 23:09:46,603 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 23:09:46,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i [2023-09-07 23:09:46,618 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c71cbf57/ca3e5f43ebd24d9abc871fe3ab9c795a/FLAGcd236f8f3 [2023-09-07 23:09:46,629 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c71cbf57/ca3e5f43ebd24d9abc871fe3ab9c795a [2023-09-07 23:09:46,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 23:09:46,632 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 23:09:46,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 23:09:46,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 23:09:46,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 23:09:46,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:09:46" (1/1) ... [2023-09-07 23:09:46,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512fabc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:46, skipping insertion in model container [2023-09-07 23:09:46,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:09:46" (1/1) ... [2023-09-07 23:09:46,672 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 23:09:46,780 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-09-07 23:09:47,029 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39095,39108] [2023-09-07 23:09:47,033 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39180,39193] [2023-09-07 23:09:47,034 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39232,39245] [2023-09-07 23:09:47,104 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49388,49401] [2023-09-07 23:09:47,105 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49437,49450] [2023-09-07 23:09:47,107 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49565,49578] [2023-09-07 23:09:47,108 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49623,49636] [2023-09-07 23:09:47,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 23:09:47,125 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 23:09:47,141 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-09-07 23:09:47,151 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [250] [2023-09-07 23:09:47,152 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [250] [2023-09-07 23:09:47,160 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile long [805] [2023-09-07 23:09:47,160 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: long [806] [2023-09-07 23:09:47,162 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile long [807] [2023-09-07 23:09:47,163 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: long [809] [2023-09-07 23:09:47,166 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: long [814] [2023-09-07 23:09:47,166 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: long [815] [2023-09-07 23:09:47,170 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: long [827] [2023-09-07 23:09:47,172 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39095,39108] [2023-09-07 23:09:47,173 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39180,39193] [2023-09-07 23:09:47,174 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39232,39245] [2023-09-07 23:09:47,177 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: long [843] [2023-09-07 23:09:47,181 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [899] [2023-09-07 23:09:47,186 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: long [1054] [2023-09-07 23:09:47,195 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49388,49401] [2023-09-07 23:09:47,196 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49437,49450] [2023-09-07 23:09:47,197 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49565,49578] [2023-09-07 23:09:47,198 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49623,49636] [2023-09-07 23:09:47,204 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: long [1078] [2023-09-07 23:09:47,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 23:09:47,265 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 23:09:47,270 INFO L206 MainTranslator]: Completed translation [2023-09-07 23:09:47,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47 WrapperNode [2023-09-07 23:09:47,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 23:09:47,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 23:09:47,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 23:09:47,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 23:09:47,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,311 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,336 INFO L138 Inliner]: procedures = 310, calls = 70, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 206 [2023-09-07 23:09:47,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 23:09:47,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 23:09:47,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 23:09:47,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 23:09:47,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,385 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 23:09:47,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 23:09:47,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 23:09:47,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 23:09:47,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (1/1) ... [2023-09-07 23:09:47,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 23:09:47,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 23:09:47,414 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) [2023-09-07 23:09:47,416 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 [2023-09-07 23:09:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2023-09-07 23:09:47,443 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2023-09-07 23:09:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2023-09-07 23:09:47,444 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2023-09-07 23:09:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 23:09:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 23:09:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 23:09:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 23:09:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-07 23:09:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 23:09:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 23:09:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 23:09:47,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 23:09:47,447 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 23:09:47,614 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 23:09:47,617 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 23:09:47,932 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 23:09:47,939 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 23:09:47,939 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-09-07 23:09:47,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:09:47 BoogieIcfgContainer [2023-09-07 23:09:47,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 23:09:47,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 23:09:47,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 23:09:47,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 23:09:47,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 11:09:46" (1/3) ... [2023-09-07 23:09:47,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d222343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:09:47, skipping insertion in model container [2023-09-07 23:09:47,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:09:47" (2/3) ... [2023-09-07 23:09:47,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d222343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:09:47, skipping insertion in model container [2023-09-07 23:09:47,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:09:47" (3/3) ... [2023-09-07 23:09:47,948 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.i [2023-09-07 23:09:47,954 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 23:09:47,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 23:09:47,962 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-07 23:09:47,962 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 23:09:48,076 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-07 23:09:48,118 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 23:09:48,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 23:09:48,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 23:09:48,121 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) [2023-09-07 23:09:48,122 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 [2023-09-07 23:09:48,163 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 23:09:48,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-07 23:09:48,175 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;@3a11a2f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 23:09:48,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 23:09:48,298 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2023-09-07 23:09:48,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 23:09:48,302 INFO L85 PathProgramCache]: Analyzing trace with hash 27236487, now seen corresponding path program 1 times [2023-09-07 23:09:48,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 23:09:48,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073690036] [2023-09-07 23:09:48,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 23:09:48,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 23:09:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 23:09:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 23:09:51,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 23:09:51,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073690036] [2023-09-07 23:09:51,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073690036] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 23:09:51,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525341132] [2023-09-07 23:09:51,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 23:09:51,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 23:09:51,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 23:09:51,867 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) [2023-09-07 23:09:51,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-07 23:09:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 23:09:52,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 100 conjunts are in the unsatisfiable core [2023-09-07 23:09:52,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 23:09:52,104 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-09-07 23:09:52,128 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-09-07 23:09:52,128 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-09-07 23:09:52,184 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-09-07 23:09:52,185 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-09-07 23:09:52,349 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-09-07 23:09:52,422 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-09-07 23:09:52,510 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2023-09-07 23:09:52,595 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2023-09-07 23:09:53,330 INFO L322 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2023-09-07 23:09:53,330 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 35 [2023-09-07 23:09:53,459 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2023-09-07 23:09:53,920 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 23:09:53,920 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2023-09-07 23:09:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 23:09:53,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 23:09:57,241 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_64 (Array Int Int)) (v_ArrVal_66 Int) (v_ArrVal_67 Int)) (or (< v_ArrVal_66 1) (< 0 (let ((.cse0 (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_64))) (store .cse1 |c_ULTIMATE.start_main_~#r~3#1.base| (let ((.cse3 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20))) (store (let ((.cse2 (select .cse1 |c_ULTIMATE.start_main_~#r~3#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 4 (* (select .cse2 .cse3) 4)) v_ArrVal_66)) .cse3 v_ArrVal_67)))) |c_reader_twoThread1of1ForFork0_#in~arg#1.base|))) (select .cse0 (+ (* (select .cse0 |c_reader_twoThread1of1ForFork0_#in~arg#1.offset|) 4) |c_reader_twoThread1of1ForFork0_#in~arg#1.offset| 4)))))) is different from false [2023-09-07 23:09:57,319 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_64 (Array Int Int)) (v_ArrVal_66 Int) (v_ArrVal_67 Int)) (or (< v_ArrVal_66 1) (< 0 (let ((.cse1 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20))) (let ((.cse0 (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_64) |c_ULTIMATE.start_main_~#r~3#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 4 (* (select .cse2 .cse1) 4)) v_ArrVal_66)))) (select (store .cse0 .cse1 v_ArrVal_67) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select .cse0 |c_ULTIMATE.start_main_~#r~3#1.offset|) 4) 4))))))) is different from false [2023-09-07 23:09:57,338 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_63 (Array Int Int)) (v_ArrVal_64 (Array Int Int)) (v_ArrVal_66 Int) (v_ArrVal_67 Int)) (or (< v_ArrVal_66 1) (< 0 (let ((.cse1 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20))) (let ((.cse0 (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_63) |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_64) |c_ULTIMATE.start_main_~#r~3#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 4 (* 4 (select .cse2 .cse1))) v_ArrVal_66)))) (select (store .cse0 .cse1 v_ArrVal_67) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 4 (* (select .cse0 |c_ULTIMATE.start_main_~#r~3#1.offset|) 4)))))))) is different from false [2023-09-07 23:09:57,365 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_63 (Array Int Int)) (v_ArrVal_64 (Array Int Int)) (v_ArrVal_66 Int) (v_ArrVal_67 Int)) (or (< v_ArrVal_66 1) (< 0 (let ((.cse1 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20))) (let ((.cse0 (let ((.cse2 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_ring_init_~r#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_ring_init_~r#1.base|) |c_ULTIMATE.start_ring_init_~r#1.offset| 0)) |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_63) |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_64) |c_ULTIMATE.start_main_~#r~3#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select .cse2 .cse1) 4) 4) v_ArrVal_66)))) (select (store .cse0 .cse1 v_ArrVal_67) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 4 (* (select .cse0 |c_ULTIMATE.start_main_~#r~3#1.offset|) 4)))))))) is different from false [2023-09-07 23:09:57,387 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 23:09:57,388 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 125 treesize of output 92 [2023-09-07 23:09:57,398 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 23:09:57,399 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 220 treesize of output 216 [2023-09-07 23:09:57,458 INFO L322 Elim1Store]: treesize reduction 10, result has 80.0 percent of original size [2023-09-07 23:09:57,458 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 1348 treesize of output 892 [2023-09-07 23:09:57,527 INFO L173 IndexEqualityManager]: detected equality via solver [2023-09-07 23:09:57,554 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 23:09:57,554 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 836 treesize of output 633 [2023-09-07 23:09:57,704 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2023-09-07 23:09:57,858 INFO L322 Elim1Store]: treesize reduction 10, result has 92.4 percent of original size [2023-09-07 23:09:57,858 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 857 treesize of output 728 [2023-09-07 23:10:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 23:10:06,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525341132] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 23:10:06,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 23:10:06,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 35, 32] total 74 [2023-09-07 23:10:06,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677529151] [2023-09-07 23:10:06,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 23:10:06,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2023-09-07 23:10:06,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 23:10:06,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2023-09-07 23:10:06,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=4587, Unknown=4, NotChecked=556, Total=5402 [2023-09-07 23:10:06,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 23:10:06,768 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 23:10:06,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.581081081081081) internal successors, (265), 74 states have internal predecessors, (265), 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) [2023-09-07 23:10:06,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Received shutdown request... [2023-09-07 23:24:18,225 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 23:24:18,225 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 23:24:18,225 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 23:24:18,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-09-07 23:24:18,634 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,SelfDestructingSolverStorable0 [2023-09-07 23:24:18,634 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2023-09-07 23:24:18,636 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 10 remaining) [2023-09-07 23:24:18,637 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 10 remaining) [2023-09-07 23:24:18,637 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION (7 of 10 remaining) [2023-09-07 23:24:18,637 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION (6 of 10 remaining) [2023-09-07 23:24:18,637 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-09-07 23:24:18,637 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-09-07 23:24:18,638 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 10 remaining) [2023-09-07 23:24:18,638 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 10 remaining) [2023-09-07 23:24:18,638 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 10 remaining) [2023-09-07 23:24:18,638 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 10 remaining) [2023-09-07 23:24:18,679 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-07 23:24:18,685 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-07 23:24:18,686 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-07 23:24:18,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 11:24:18 BasicIcfg [2023-09-07 23:24:18,690 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-07 23:24:18,696 INFO L158 Benchmark]: Toolchain (without parser) took 872063.26ms. Allocated memory was 180.4MB in the beginning and 577.8MB in the end (delta: 397.4MB). Free memory was 129.2MB in the beginning and 206.8MB in the end (delta: -77.6MB). Peak memory consumption was 425.7MB. Max. memory is 7.0GB. [2023-09-07 23:24:18,696 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-07 23:24:18,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.12ms. Allocated memory is still 180.4MB. Free memory was 129.2MB in the beginning and 94.6MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 7.0GB. [2023-09-07 23:24:18,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.81ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 94.2MB in the beginning and 230.6MB in the end (delta: -136.4MB). Peak memory consumption was 7.6MB. Max. memory is 7.0GB. [2023-09-07 23:24:18,699 INFO L158 Benchmark]: Boogie Preprocessor took 50.14ms. Allocated memory is still 262.1MB. Free memory was 230.6MB in the beginning and 228.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-07 23:24:18,699 INFO L158 Benchmark]: RCFGBuilder took 552.92ms. Allocated memory is still 262.1MB. Free memory was 228.5MB in the beginning and 206.0MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 7.0GB. [2023-09-07 23:24:18,699 INFO L158 Benchmark]: TraceAbstraction took 870752.36ms. Allocated memory was 262.1MB in the beginning and 577.8MB in the end (delta: 315.6MB). Free memory was 205.5MB in the beginning and 206.8MB in the end (delta: -1.3MB). Peak memory consumption was 419.1MB. Max. memory is 7.0GB. [2023-09-07 23:24:18,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 637.12ms. Allocated memory is still 180.4MB. Free memory was 129.2MB in the beginning and 94.6MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 65.81ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 94.2MB in the beginning and 230.6MB in the end (delta: -136.4MB). Peak memory consumption was 7.6MB. Max. memory is 7.0GB. * Boogie Preprocessor took 50.14ms. Allocated memory is still 262.1MB. Free memory was 230.6MB in the beginning and 228.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * RCFGBuilder took 552.92ms. Allocated memory is still 262.1MB. Free memory was 228.5MB in the beginning and 206.0MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 7.0GB. * TraceAbstraction took 870752.36ms. Allocated memory was 262.1MB in the beginning and 577.8MB in the end (delta: 315.6MB). Free memory was 205.5MB in the beginning and 206.8MB in the end (delta: -1.3MB). Peak memory consumption was 419.1MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 250]: Unsoundness Warning unspecified type, defaulting to int C: short [250] - GenericResultAtLocation [Line: 250]: Unsoundness Warning unspecified type, defaulting to int C: short [250] - GenericResultAtLocation [Line: 805]: Unsoundness Warning unspecified type, defaulting to int C: volatile long [805] - GenericResultAtLocation [Line: 806]: Unsoundness Warning unspecified type, defaulting to int C: long [806] - GenericResultAtLocation [Line: 807]: Unsoundness Warning unspecified type, defaulting to int C: volatile long [807] - GenericResultAtLocation [Line: 809]: Unsoundness Warning unspecified type, defaulting to int C: long [809] - GenericResultAtLocation [Line: 814]: Unsoundness Warning unspecified type, defaulting to int C: long [814] - GenericResultAtLocation [Line: 815]: Unsoundness Warning unspecified type, defaulting to int C: long [815] - GenericResultAtLocation [Line: 827]: Unsoundness Warning unspecified type, defaulting to int C: long [827] - GenericResultAtLocation [Line: 843]: Unsoundness Warning unspecified type, defaulting to int C: long [843] - GenericResultAtLocation [Line: 899]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [899] - GenericResultAtLocation [Line: 1054]: Unsoundness Warning unspecified type, defaulting to int C: long [1054] - GenericResultAtLocation [Line: 1078]: Unsoundness Warning unspecified type, defaulting to int C: long [1078] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 24511, independent: 23415, independent conditional: 23415, independent unconditional: 0, dependent: 1096, dependent conditional: 1096, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23499, independent: 23415, independent conditional: 23415, independent unconditional: 0, dependent: 84, dependent conditional: 84, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 23499, independent: 23415, independent conditional: 23415, independent unconditional: 0, dependent: 84, dependent conditional: 84, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23583, independent: 23415, independent conditional: 0, independent unconditional: 23415, dependent: 168, dependent conditional: 84, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 23583, independent: 23415, independent conditional: 0, independent unconditional: 23415, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23583, independent: 23415, independent conditional: 0, independent unconditional: 23415, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23499, independent: 23415, independent conditional: 0, independent unconditional: 23415, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23499, independent: 23413, independent conditional: 0, independent unconditional: 23413, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 86, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 86, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 86, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 126, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 23583, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 23499, unknown conditional: 0, unknown unconditional: 23499] , Statistics on independence cache: Total cache size (in pairs): 23499, Positive cache size: 23415, Positive conditional cache size: 0, Positive unconditional cache size: 23415, Negative cache size: 84, Negative conditional cache size: 0, Negative unconditional cache size: 84, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 84, Maximal queried relation: 1, Independence queries for same thread: 1012 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 0, RedundantProofs: 0, ProvenStates: 1124 - TimeoutResultAtElement [Line: 1060]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 1061]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 1064]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 1065]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 1076]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 1075]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 317 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 870.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 851.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 381 ConstructedInterpolants, 37 QuantifiedInterpolants, 7642 SizeOfPredicates, 46 NumberOfNonLiveVariables, 345 ConjunctsInSsa, 100 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 0/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown