/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe036.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:18:43,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:18:43,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:18:43,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:18:43,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:18:43,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:18:43,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:18:43,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:18:43,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:18:43,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:18:43,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:18:43,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:18:43,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:18:43,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:18:43,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:18:43,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:18:43,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:18:43,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:18:43,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:18:43,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:18:43,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:18:43,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:18:43,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:18:43,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:18:43,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:18:43,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:18:43,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:18:43,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:18:43,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:18:43,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:18:43,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:18:43,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:18:43,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:18:43,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:18:43,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:18:43,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:18:43,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:18:43,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:18:43,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:18:43,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:18:43,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:18:43,306 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 03:18:43,334 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:18:43,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:18:43,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:18:43,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:18:43,336 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:18:43,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:18:43,337 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:18:43,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:18:43,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:18:43,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:18:43,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:18:43,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:18:43,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:18:43,338 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:18:43,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:18:43,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:18:43,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:18:43,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:18:43,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:18:43,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:18:43,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:18:43,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:18:43,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:18:43,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:18:43,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:18:43,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:18:43,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:18:43,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:18:43,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:18:43,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:18:43,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:18:43,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:18:43,619 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:18:43,619 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:18:43,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036.i [2022-12-13 03:18:44,477 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:18:44,773 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:18:44,774 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036.i [2022-12-13 03:18:44,786 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/811b4a20a/dbb69b6efc5c4a0388cb94cf5efd6d02/FLAG1276e4cc8 [2022-12-13 03:18:44,800 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/811b4a20a/dbb69b6efc5c4a0388cb94cf5efd6d02 [2022-12-13 03:18:44,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:18:44,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:18:44,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:18:44,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:18:44,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:18:44,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:18:44" (1/1) ... [2022-12-13 03:18:44,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2434fde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:44, skipping insertion in model container [2022-12-13 03:18:44,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:18:44" (1/1) ... [2022-12-13 03:18:44,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:18:44,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:18:44,994 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036.i[941,954] [2022-12-13 03:18:45,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:18:45,146 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:18:45,155 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036.i[941,954] [2022-12-13 03:18:45,177 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,179 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,179 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,183 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,183 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,183 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,183 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:45,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:45,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:18:45,225 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:18:45,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45 WrapperNode [2022-12-13 03:18:45,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:18:45,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:18:45,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:18:45,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:18:45,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,274 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 03:18:45,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:18:45,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:18:45,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:18:45,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:18:45,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:18:45,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:18:45,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:18:45,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:18:45,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (1/1) ... [2022-12-13 03:18:45,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:18:45,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:18:45,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 03:18:45,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 03:18:45,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:18:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 03:18:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:18:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:18:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:18:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 03:18:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 03:18:45,389 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 03:18:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 03:18:45,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:18:45,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 03:18:45,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:18:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:18:45,391 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:18:45,503 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:18:45,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:18:45,634 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:18:45,639 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:18:45,639 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:18:45,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:18:45 BoogieIcfgContainer [2022-12-13 03:18:45,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:18:45,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:18:45,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:18:45,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:18:45,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:18:44" (1/3) ... [2022-12-13 03:18:45,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7101a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:18:45, skipping insertion in model container [2022-12-13 03:18:45,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:45" (2/3) ... [2022-12-13 03:18:45,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7101a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:18:45, skipping insertion in model container [2022-12-13 03:18:45,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:18:45" (3/3) ... [2022-12-13 03:18:45,646 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i [2022-12-13 03:18:45,657 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:18:45,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 03:18:45,657 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:18:45,695 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 03:18:45,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions, 146 flow [2022-12-13 03:18:45,758 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2022-12-13 03:18:45,758 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:18:45,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-13 03:18:45,761 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 68 transitions, 146 flow [2022-12-13 03:18:45,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 56 transitions, 118 flow [2022-12-13 03:18:45,765 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:45,784 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 56 transitions, 118 flow [2022-12-13 03:18:45,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 118 flow [2022-12-13 03:18:45,811 INFO L130 PetriNetUnfolder]: 1/56 cut-off events. [2022-12-13 03:18:45,811 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:18:45,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-13 03:18:45,813 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 56 transitions, 118 flow [2022-12-13 03:18:45,813 INFO L226 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-13 03:18:47,311 INFO L241 LiptonReduction]: Total number of compositions: 44 [2022-12-13 03:18:47,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:18:47,327 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=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, 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;@303a9fe4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:18:47,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 03:18:47,335 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 03:18:47,335 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:18:47,335 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:18:47,335 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 03:18:47,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:18:47,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:18:47,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1653656279, now seen corresponding path program 1 times [2022-12-13 03:18:47,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:18:47,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092120213] [2022-12-13 03:18:47,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:18:47,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:18:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:18:47,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:18:47,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:18:47,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092120213] [2022-12-13 03:18:47,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092120213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:18:47,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:18:47,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:18:47,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289670363] [2022-12-13 03:18:47,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:18:47,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:18:47,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:18:47,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:18:47,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:18:47,645 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-13 03:18:47,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:18:47,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:18:47,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-13 03:18:47,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:18:47,713 INFO L130 PetriNetUnfolder]: 91/201 cut-off events. [2022-12-13 03:18:47,713 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 03:18:47,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 201 events. 91/201 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 906 event pairs, 21 based on Foata normal form. 25/157 useless extension candidates. Maximal degree in co-relation 401. Up to 139 conditions per place. [2022-12-13 03:18:47,715 INFO L137 encePairwiseOnDemand]: 9/19 looper letters, 17 selfloop transitions, 7 changer transitions 17/45 dead transitions. [2022-12-13 03:18:47,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 45 transitions, 181 flow [2022-12-13 03:18:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:18:47,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:18:47,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions. [2022-12-13 03:18:47,723 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2022-12-13 03:18:47,726 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 4 predicate places. [2022-12-13 03:18:47,727 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 45 transitions, 181 flow [2022-12-13 03:18:47,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 28 transitions, 113 flow [2022-12-13 03:18:47,733 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:18:47,733 INFO L89 Accepts]: Start accepts. Operand has 27 places, 28 transitions, 113 flow [2022-12-13 03:18:47,735 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:18:47,735 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:47,735 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 28 transitions, 113 flow [2022-12-13 03:18:47,738 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 28 transitions, 113 flow [2022-12-13 03:18:47,738 INFO L226 LiptonReduction]: Number of co-enabled transitions 64 [2022-12-13 03:18:47,746 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:18:47,747 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 14 [2022-12-13 03:18:47,747 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 28 transitions, 113 flow [2022-12-13 03:18:47,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:18:47,748 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:18:47,748 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:18:47,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:18:47,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:18:47,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:18:47,749 INFO L85 PathProgramCache]: Analyzing trace with hash 170879388, now seen corresponding path program 1 times [2022-12-13 03:18:47,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:18:47,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35299869] [2022-12-13 03:18:47,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:18:47,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:18:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:18:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:18:47,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:18:47,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35299869] [2022-12-13 03:18:47,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35299869] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:18:47,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:18:47,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:18:47,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969991703] [2022-12-13 03:18:47,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:18:47,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:18:47,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:18:47,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:18:47,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:18:47,870 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 18 [2022-12-13 03:18:47,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 28 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:18:47,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:18:47,870 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 18 [2022-12-13 03:18:47,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:18:47,930 INFO L130 PetriNetUnfolder]: 39/120 cut-off events. [2022-12-13 03:18:47,930 INFO L131 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2022-12-13 03:18:47,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 120 events. 39/120 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 508 event pairs, 3 based on Foata normal form. 21/104 useless extension candidates. Maximal degree in co-relation 352. Up to 103 conditions per place. [2022-12-13 03:18:47,931 INFO L137 encePairwiseOnDemand]: 9/18 looper letters, 11 selfloop transitions, 13 changer transitions 10/37 dead transitions. [2022-12-13 03:18:47,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 37 transitions, 215 flow [2022-12-13 03:18:47,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 03:18:47,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 03:18:47,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 59 transitions. [2022-12-13 03:18:47,932 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5462962962962963 [2022-12-13 03:18:47,932 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 7 predicate places. [2022-12-13 03:18:47,932 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 37 transitions, 215 flow [2022-12-13 03:18:47,933 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 27 transitions, 159 flow [2022-12-13 03:18:47,934 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:18:47,934 INFO L89 Accepts]: Start accepts. Operand has 29 places, 27 transitions, 159 flow [2022-12-13 03:18:47,934 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:18:47,934 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:47,934 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 27 transitions, 159 flow [2022-12-13 03:18:47,935 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 27 transitions, 159 flow [2022-12-13 03:18:47,935 INFO L226 LiptonReduction]: Number of co-enabled transitions 32 [2022-12-13 03:18:48,035 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:18:48,036 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 103 [2022-12-13 03:18:48,036 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 153 flow [2022-12-13 03:18:48,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:18:48,036 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:18:48,037 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:18:48,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:18:48,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:18:48,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:18:48,037 INFO L85 PathProgramCache]: Analyzing trace with hash 978748619, now seen corresponding path program 1 times [2022-12-13 03:18:48,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:18:48,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327977853] [2022-12-13 03:18:48,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:18:48,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:18:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:18:48,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:18:48,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:18:48,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327977853] [2022-12-13 03:18:48,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327977853] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:18:48,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:18:48,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:18:48,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639476131] [2022-12-13 03:18:48,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:18:48,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:18:48,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:18:48,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:18:48,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:18:48,105 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 16 [2022-12-13 03:18:48,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:18:48,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:18:48,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 16 [2022-12-13 03:18:48,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:18:48,137 INFO L130 PetriNetUnfolder]: 37/109 cut-off events. [2022-12-13 03:18:48,138 INFO L131 PetriNetUnfolder]: For 57/58 co-relation queries the response was YES. [2022-12-13 03:18:48,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 109 events. 37/109 cut-off events. For 57/58 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 478 event pairs, 4 based on Foata normal form. 10/98 useless extension candidates. Maximal degree in co-relation 393. Up to 84 conditions per place. [2022-12-13 03:18:48,138 INFO L137 encePairwiseOnDemand]: 13/16 looper letters, 19 selfloop transitions, 2 changer transitions 11/38 dead transitions. [2022-12-13 03:18:48,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 38 transitions, 285 flow [2022-12-13 03:18:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:18:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:18:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2022-12-13 03:18:48,141 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.578125 [2022-12-13 03:18:48,142 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 6 predicate places. [2022-12-13 03:18:48,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 38 transitions, 285 flow [2022-12-13 03:18:48,143 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 201 flow [2022-12-13 03:18:48,144 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:18:48,144 INFO L89 Accepts]: Start accepts. Operand has 30 places, 27 transitions, 201 flow [2022-12-13 03:18:48,145 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:18:48,145 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:48,146 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 27 transitions, 201 flow [2022-12-13 03:18:48,148 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 27 transitions, 201 flow [2022-12-13 03:18:48,148 INFO L226 LiptonReduction]: Number of co-enabled transitions 16 [2022-12-13 03:18:48,167 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:18:48,168 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 24 [2022-12-13 03:18:48,170 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 201 flow [2022-12-13 03:18:48,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:18:48,173 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:18:48,174 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:18:48,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:18:48,174 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:18:48,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:18:48,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1056673867, now seen corresponding path program 2 times [2022-12-13 03:18:48,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:18:48,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065883425] [2022-12-13 03:18:48,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:18:48,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:18:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:18:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:18:48,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:18:48,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065883425] [2022-12-13 03:18:48,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065883425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:18:48,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:18:48,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:18:48,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070570448] [2022-12-13 03:18:48,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:18:48,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:18:48,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:18:48,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:18:48,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:18:48,299 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-13 03:18:48,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:18:48,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:18:48,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-13 03:18:48,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:18:48,339 INFO L130 PetriNetUnfolder]: 26/76 cut-off events. [2022-12-13 03:18:48,339 INFO L131 PetriNetUnfolder]: For 71/72 co-relation queries the response was YES. [2022-12-13 03:18:48,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 76 events. 26/76 cut-off events. For 71/72 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 263 event pairs, 0 based on Foata normal form. 10/71 useless extension candidates. Maximal degree in co-relation 329. Up to 54 conditions per place. [2022-12-13 03:18:48,340 INFO L137 encePairwiseOnDemand]: 13/17 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2022-12-13 03:18:48,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 312 flow [2022-12-13 03:18:48,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:18:48,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:18:48,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2022-12-13 03:18:48,342 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 03:18:48,343 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 7 predicate places. [2022-12-13 03:18:48,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 34 transitions, 312 flow [2022-12-13 03:18:48,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-13 03:18:48,344 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:48,344 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 03:18:48,346 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 03:18:48,346 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 03:18:48,347 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:18:48,354 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-13 03:18:48,354 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 03:18:48,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:18:48,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 03:18:48,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 03:18:48,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 03:18:48,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 03:18:48,357 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-13 03:18:48,359 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 03:18:48,359 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 03:18:48,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:18:48 BasicIcfg [2022-12-13 03:18:48,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 03:18:48,363 INFO L158 Benchmark]: Toolchain (without parser) took 3559.39ms. Allocated memory was 255.9MB in the beginning and 402.7MB in the end (delta: 146.8MB). Free memory was 229.8MB in the beginning and 291.6MB in the end (delta: -61.8MB). Peak memory consumption was 85.8MB. Max. memory is 8.0GB. [2022-12-13 03:18:48,363 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 231.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:18:48,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.04ms. Allocated memory is still 255.9MB. Free memory was 229.8MB in the beginning and 207.5MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-13 03:18:48,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.11ms. Allocated memory is still 255.9MB. Free memory was 207.0MB in the beginning and 205.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 03:18:48,363 INFO L158 Benchmark]: Boogie Preprocessor took 30.64ms. Allocated memory is still 255.9MB. Free memory was 205.4MB in the beginning and 203.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 03:18:48,364 INFO L158 Benchmark]: RCFGBuilder took 333.41ms. Allocated memory is still 255.9MB. Free memory was 203.8MB in the beginning and 191.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-13 03:18:48,364 INFO L158 Benchmark]: TraceAbstraction took 2720.39ms. Allocated memory was 255.9MB in the beginning and 402.7MB in the end (delta: 146.8MB). Free memory was 190.2MB in the beginning and 291.6MB in the end (delta: -101.4MB). Peak memory consumption was 45.9MB. Max. memory is 8.0GB. [2022-12-13 03:18:48,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 231.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 422.04ms. Allocated memory is still 255.9MB. Free memory was 229.8MB in the beginning and 207.5MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.11ms. Allocated memory is still 255.9MB. Free memory was 207.0MB in the beginning and 205.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.64ms. Allocated memory is still 255.9MB. Free memory was 205.4MB in the beginning and 203.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 333.41ms. Allocated memory is still 255.9MB. Free memory was 203.8MB in the beginning and 191.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2720.39ms. Allocated memory was 255.9MB in the beginning and 402.7MB in the end (delta: 146.8MB). Free memory was 190.2MB in the beginning and 291.6MB in the end (delta: -101.4MB). Peak memory consumption was 45.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 62 PlacesBefore, 25 PlacesAfterwards, 56 TransitionsBefore, 19 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 502, independent: 461, independent conditional: 461, independent unconditional: 0, dependent: 41, dependent conditional: 41, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 502, independent: 461, independent conditional: 0, independent unconditional: 461, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 502, independent: 461, independent conditional: 0, independent unconditional: 461, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 502, independent: 461, independent conditional: 0, independent unconditional: 461, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 409, independent: 381, independent conditional: 0, independent unconditional: 381, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 409, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 120, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 502, independent: 80, independent conditional: 0, independent unconditional: 80, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 409, unknown conditional: 0, unknown unconditional: 409] , Statistics on independence cache: Total cache size (in pairs): 567, Positive cache size: 539, Positive conditional cache size: 0, Positive unconditional cache size: 539, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 27 PlacesBefore, 27 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 70, independent: 56, independent conditional: 56, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 70, independent: 56, independent conditional: 28, independent unconditional: 28, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 70, independent: 56, independent conditional: 14, independent unconditional: 42, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70, independent: 56, independent conditional: 14, independent unconditional: 42, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, independent: 16, independent conditional: 4, independent unconditional: 12, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 70, independent: 40, independent conditional: 10, independent unconditional: 30, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 20, unknown conditional: 4, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 16, Positive conditional cache size: 4, Positive unconditional cache size: 12, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 28, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 29 PlacesBefore, 28 PlacesAfterwards, 27 TransitionsBefore, 26 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 94, independent: 64, independent conditional: 64, independent unconditional: 0, dependent: 30, dependent conditional: 30, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 94, independent: 64, independent conditional: 48, independent unconditional: 16, dependent: 30, dependent conditional: 30, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 124, independent: 64, independent conditional: 16, independent unconditional: 48, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, independent: 64, independent conditional: 16, independent unconditional: 48, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 124, independent: 62, independent conditional: 14, independent unconditional: 48, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 18, Positive conditional cache size: 6, Positive unconditional cache size: 12, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 92, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 30 PlacesBefore, 30 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 21, Positive conditional cache size: 9, Positive unconditional cache size: 12, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 21, Positive conditional cache size: 9, Positive unconditional cache size: 12, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 210 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 3 mSDtfsCounter, 210 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=3, InterpolantAutomatonStates: 19, 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 03:18:48,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...