/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 14:41:55,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:41:55,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:41:55,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:41:55,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:41:55,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:41:55,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:41:55,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:41:55,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:41:55,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:41:55,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:41:55,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:41:55,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:41:55,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:41:55,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:41:55,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:41:55,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:41:55,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:41:55,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:41:55,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:41:55,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:41:55,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:41:55,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:41:55,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:41:55,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:41:55,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:41:55,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:41:55,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:41:55,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:41:55,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:41:55,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:41:55,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:41:55,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:41:55,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:41:55,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:41:55,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:41:55,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:41:55,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:41:55,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:41:55,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:41:55,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:41:55,322 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-SemanticLbe.epf [2022-12-12 14:41:55,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:41:55,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:41:55,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:41:55,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:41:55,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:41:55,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:41:55,350 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:41:55,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:41:55,350 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:41:55,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:41:55,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:41:55,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:41:55,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:41:55,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:41:55,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:41:55,351 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:41:55,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:41:55,351 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:41:55,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:41:55,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:41:55,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:41:55,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:41:55,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:41:55,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:41:55,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:41:55,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:41:55,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:41:55,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:41:55,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:41:55,352 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:41:55,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:41:55,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:41:55,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:41:55,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:41:55,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:41:55,635 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:41:55,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2022-12-12 14:41:56,716 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:41:57,010 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:41:57,010 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2022-12-12 14:41:57,018 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9d93ec49/12b892d9fcf04d8f9d287661560665a3/FLAGb7f70dc0b [2022-12-12 14:41:57,028 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9d93ec49/12b892d9fcf04d8f9d287661560665a3 [2022-12-12 14:41:57,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:41:57,031 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:41:57,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:41:57,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:41:57,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:41:57,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17cbd488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57, skipping insertion in model container [2022-12-12 14:41:57,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:41:57,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:41:57,163 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/safe024_tso.i[945,958] [2022-12-12 14:41:57,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:41:57,279 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:41:57,290 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/safe024_tso.i[945,958] [2022-12-12 14:41:57,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:41:57,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:41:57,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:41:57,369 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:41:57,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57 WrapperNode [2022-12-12 14:41:57,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:41:57,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:41:57,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:41:57,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:41:57,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,415 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-12 14:41:57,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:41:57,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:41:57,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:41:57,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:41:57,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,440 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:41:57,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:41:57,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:41:57,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:41:57,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (1/1) ... [2022-12-12 14:41:57,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:41:57,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:41:57,484 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) [2022-12-12 14:41:57,539 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 [2022-12-12 14:41:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:41:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 14:41:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:41:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:41:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:41:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 14:41:57,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 14:41:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 14:41:57,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 14:41:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 14:41:57,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 14:41:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:41:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 14:41:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:41:57,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:41:57,573 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 14:41:57,726 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:41:57,727 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:41:57,902 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:41:57,907 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:41:57,907 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 14:41:57,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:41:57 BoogieIcfgContainer [2022-12-12 14:41:57,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:41:57,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:41:57,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:41:57,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:41:57,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:41:57" (1/3) ... [2022-12-12 14:41:57,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b46af73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:41:57, skipping insertion in model container [2022-12-12 14:41:57,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:41:57" (2/3) ... [2022-12-12 14:41:57,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b46af73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:41:57, skipping insertion in model container [2022-12-12 14:41:57,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:41:57" (3/3) ... [2022-12-12 14:41:57,916 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.i [2022-12-12 14:41:57,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:41:57,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 14:41:57,930 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:41:57,994 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 14:41:58,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-12 14:41:58,078 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-12 14:41:58,079 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:41:58,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-12 14:41:58,084 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-12 14:41:58,089 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-12 14:41:58,090 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:41:58,112 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-12 14:41:58,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 71 transitions, 151 flow [2022-12-12 14:41:58,136 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-12-12 14:41:58,136 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:41:58,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-12 14:41:58,139 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-12 14:41:58,140 INFO L226 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-12 14:42:00,048 INFO L241 LiptonReduction]: Total number of compositions: 54 [2022-12-12 14:42:00,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 14:42:00,063 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=PETRI_NET, 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;@7c13a318, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 14:42:00,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 14:42:00,067 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-12 14:42:00,067 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:42:00,067 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:00,068 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:00,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:42:00,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:00,072 INFO L85 PathProgramCache]: Analyzing trace with hash 365188265, now seen corresponding path program 1 times [2022-12-12 14:42:00,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:00,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705540765] [2022-12-12 14:42:00,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:00,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:00,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:00,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:00,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705540765] [2022-12-12 14:42:00,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705540765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:00,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:00,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:42:00,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345917974] [2022-12-12 14:42:00,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:00,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:42:00,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:00,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:42:00,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:42:00,541 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-12 14:42:00,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-12 14:42:00,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:00,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-12 14:42:00,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:00,741 INFO L130 PetriNetUnfolder]: 654/1070 cut-off events. [2022-12-12 14:42:00,742 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-12 14:42:00,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1070 events. 654/1070 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5465 event pairs, 211 based on Foata normal form. 8/863 useless extension candidates. Maximal degree in co-relation 2113. Up to 926 conditions per place. [2022-12-12 14:42:00,753 INFO L137 encePairwiseOnDemand]: 22/27 looper letters, 27 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2022-12-12 14:42:00,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 149 flow [2022-12-12 14:42:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:42:00,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:42:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-12 14:42:00,762 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-12 14:42:00,763 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 63 flow. Second operand 3 states and 54 transitions. [2022-12-12 14:42:00,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 149 flow [2022-12-12 14:42:00,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-12 14:42:00,769 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 77 flow [2022-12-12 14:42:00,770 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2022-12-12 14:42:00,773 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2022-12-12 14:42:00,774 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 77 flow [2022-12-12 14:42:00,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-12 14:42:00,774 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:00,774 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:00,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 14:42:00,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:42:00,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:00,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1564066127, now seen corresponding path program 1 times [2022-12-12 14:42:00,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:00,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391456173] [2022-12-12 14:42:00,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:00,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:00,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:00,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:00,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391456173] [2022-12-12 14:42:00,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391456173] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:00,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:00,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:42:00,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8318068] [2022-12-12 14:42:00,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:00,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:42:00,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:00,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:42:00,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:42:00,935 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-12 14:42:00,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2022-12-12 14:42:00,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:00,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-12 14:42:00,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:01,052 INFO L130 PetriNetUnfolder]: 631/1168 cut-off events. [2022-12-12 14:42:01,052 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-12 14:42:01,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2347 conditions, 1168 events. 631/1168 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 6942 event pairs, 165 based on Foata normal form. 90/992 useless extension candidates. Maximal degree in co-relation 2336. Up to 382 conditions per place. [2022-12-12 14:42:01,058 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 27 selfloop transitions, 4 changer transitions 6/46 dead transitions. [2022-12-12 14:42:01,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 46 transitions, 194 flow [2022-12-12 14:42:01,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:42:01,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:42:01,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2022-12-12 14:42:01,060 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2022-12-12 14:42:01,060 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 77 flow. Second operand 4 states and 69 transitions. [2022-12-12 14:42:01,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 46 transitions, 194 flow [2022-12-12 14:42:01,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 46 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:42:01,061 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 91 flow [2022-12-12 14:42:01,062 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2022-12-12 14:42:01,062 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2022-12-12 14:42:01,062 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 91 flow [2022-12-12 14:42:01,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2022-12-12 14:42:01,063 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:01,063 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:01,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 14:42:01,063 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:42:01,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:01,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1394365276, now seen corresponding path program 1 times [2022-12-12 14:42:01,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:01,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420428891] [2022-12-12 14:42:01,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:01,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:01,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:01,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:01,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420428891] [2022-12-12 14:42:01,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420428891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:01,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:01,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:42:01,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841744756] [2022-12-12 14:42:01,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:01,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:42:01,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:42:01,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:42:01,212 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:42:01,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-12-12 14:42:01,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:01,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:42:01,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:01,359 INFO L130 PetriNetUnfolder]: 832/1359 cut-off events. [2022-12-12 14:42:01,360 INFO L131 PetriNetUnfolder]: For 1057/1064 co-relation queries the response was YES. [2022-12-12 14:42:01,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3263 conditions, 1359 events. 832/1359 cut-off events. For 1057/1064 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 7482 event pairs, 74 based on Foata normal form. 103/861 useless extension candidates. Maximal degree in co-relation 3249. Up to 654 conditions per place. [2022-12-12 14:42:01,366 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 41 selfloop transitions, 11 changer transitions 0/59 dead transitions. [2022-12-12 14:42:01,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 59 transitions, 281 flow [2022-12-12 14:42:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:42:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:42:01,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2022-12-12 14:42:01,369 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2022-12-12 14:42:01,369 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 91 flow. Second operand 4 states and 75 transitions. [2022-12-12 14:42:01,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 59 transitions, 281 flow [2022-12-12 14:42:01,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 59 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:42:01,373 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 172 flow [2022-12-12 14:42:01,374 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2022-12-12 14:42:01,374 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2022-12-12 14:42:01,375 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 172 flow [2022-12-12 14:42:01,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-12-12 14:42:01,377 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:01,378 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:01,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 14:42:01,379 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:42:01,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:01,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1842646758, now seen corresponding path program 1 times [2022-12-12 14:42:01,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:01,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318142177] [2022-12-12 14:42:01,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:01,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:01,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:01,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318142177] [2022-12-12 14:42:01,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318142177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:01,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:01,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:42:01,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121455313] [2022-12-12 14:42:01,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:01,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:42:01,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:01,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:42:01,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:42:01,482 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:42:01,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2022-12-12 14:42:01,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:01,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:42:01,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:01,647 INFO L130 PetriNetUnfolder]: 748/1335 cut-off events. [2022-12-12 14:42:01,647 INFO L131 PetriNetUnfolder]: For 1780/1915 co-relation queries the response was YES. [2022-12-12 14:42:01,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4439 conditions, 1335 events. 748/1335 cut-off events. For 1780/1915 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 8053 event pairs, 20 based on Foata normal form. 108/848 useless extension candidates. Maximal degree in co-relation 4423. Up to 934 conditions per place. [2022-12-12 14:42:01,656 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 44 selfloop transitions, 20 changer transitions 0/71 dead transitions. [2022-12-12 14:42:01,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 71 transitions, 427 flow [2022-12-12 14:42:01,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:42:01,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:42:01,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2022-12-12 14:42:01,660 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6962962962962963 [2022-12-12 14:42:01,660 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 172 flow. Second operand 5 states and 94 transitions. [2022-12-12 14:42:01,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 71 transitions, 427 flow [2022-12-12 14:42:01,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 71 transitions, 424 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:42:01,665 INFO L231 Difference]: Finished difference. Result has 48 places, 48 transitions, 302 flow [2022-12-12 14:42:01,665 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=302, PETRI_PLACES=48, PETRI_TRANSITIONS=48} [2022-12-12 14:42:01,666 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2022-12-12 14:42:01,666 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 48 transitions, 302 flow [2022-12-12 14:42:01,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2022-12-12 14:42:01,667 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:01,667 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:01,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 14:42:01,667 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:42:01,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:01,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1258523941, now seen corresponding path program 1 times [2022-12-12 14:42:01,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:01,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012612586] [2022-12-12 14:42:01,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:01,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:01,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:01,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012612586] [2022-12-12 14:42:01,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012612586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:01,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:01,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:42:01,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543070031] [2022-12-12 14:42:01,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:01,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 14:42:01,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 14:42:01,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 14:42:01,775 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:42:01,775 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 48 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-12-12 14:42:01,775 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:01,775 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:42:01,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:01,939 INFO L130 PetriNetUnfolder]: 622/1191 cut-off events. [2022-12-12 14:42:01,939 INFO L131 PetriNetUnfolder]: For 2245/2593 co-relation queries the response was YES. [2022-12-12 14:42:01,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5123 conditions, 1191 events. 622/1191 cut-off events. For 2245/2593 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 7413 event pairs, 20 based on Foata normal form. 96/746 useless extension candidates. Maximal degree in co-relation 5104. Up to 808 conditions per place. [2022-12-12 14:42:01,945 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 25 selfloop transitions, 29 changer transitions 0/61 dead transitions. [2022-12-12 14:42:01,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 61 transitions, 459 flow [2022-12-12 14:42:01,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:42:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:42:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2022-12-12 14:42:01,948 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-12 14:42:01,949 INFO L175 Difference]: Start difference. First operand has 48 places, 48 transitions, 302 flow. Second operand 6 states and 90 transitions. [2022-12-12 14:42:01,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 61 transitions, 459 flow [2022-12-12 14:42:01,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 61 transitions, 428 flow, removed 9 selfloop flow, removed 2 redundant places. [2022-12-12 14:42:01,955 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 370 flow [2022-12-12 14:42:01,955 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=370, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2022-12-12 14:42:01,956 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 17 predicate places. [2022-12-12 14:42:01,956 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 370 flow [2022-12-12 14:42:01,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-12-12 14:42:01,957 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:01,957 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:01,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 14:42:01,957 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:42:01,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:01,957 INFO L85 PathProgramCache]: Analyzing trace with hash 163144552, now seen corresponding path program 1 times [2022-12-12 14:42:01,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:01,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738898477] [2022-12-12 14:42:01,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:01,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:02,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:02,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738898477] [2022-12-12 14:42:02,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738898477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:02,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:02,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:42:02,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432865170] [2022-12-12 14:42:02,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:02,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:42:02,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:02,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:42:02,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:42:02,089 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-12 14:42:02,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-12-12 14:42:02,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:02,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-12 14:42:02,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:02,416 INFO L130 PetriNetUnfolder]: 968/1897 cut-off events. [2022-12-12 14:42:02,416 INFO L131 PetriNetUnfolder]: For 6859/6990 co-relation queries the response was YES. [2022-12-12 14:42:02,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9202 conditions, 1897 events. 968/1897 cut-off events. For 6859/6990 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 13487 event pairs, 57 based on Foata normal form. 79/1496 useless extension candidates. Maximal degree in co-relation 9181. Up to 1234 conditions per place. [2022-12-12 14:42:02,422 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 37 selfloop transitions, 1 changer transitions 38/89 dead transitions. [2022-12-12 14:42:02,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 89 transitions, 835 flow [2022-12-12 14:42:02,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:42:02,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:42:02,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2022-12-12 14:42:02,423 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2022-12-12 14:42:02,424 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 370 flow. Second operand 4 states and 70 transitions. [2022-12-12 14:42:02,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 89 transitions, 835 flow [2022-12-12 14:42:02,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 89 transitions, 714 flow, removed 30 selfloop flow, removed 3 redundant places. [2022-12-12 14:42:02,444 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 281 flow [2022-12-12 14:42:02,444 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=281, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2022-12-12 14:42:02,445 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 19 predicate places. [2022-12-12 14:42:02,445 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 281 flow [2022-12-12 14:42:02,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-12-12 14:42:02,445 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:42:02,445 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:02,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 14:42:02,446 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:42:02,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:42:02,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1148842411, now seen corresponding path program 1 times [2022-12-12 14:42:02,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:42:02,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128677396] [2022-12-12 14:42:02,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:42:02,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:42:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:42:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:42:02,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:42:02,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128677396] [2022-12-12 14:42:02,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128677396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:42:02,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:42:02,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:42:02,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168417238] [2022-12-12 14:42:02,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:42:02,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:42:02,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:42:02,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:42:02,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:42:02,516 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-12 14:42:02,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 281 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2022-12-12 14:42:02,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:42:02,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-12 14:42:02,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:42:02,564 INFO L130 PetriNetUnfolder]: 162/343 cut-off events. [2022-12-12 14:42:02,564 INFO L131 PetriNetUnfolder]: For 1217/1227 co-relation queries the response was YES. [2022-12-12 14:42:02,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 343 events. 162/343 cut-off events. For 1217/1227 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1553 event pairs, 18 based on Foata normal form. 34/293 useless extension candidates. Maximal degree in co-relation 1377. Up to 159 conditions per place. [2022-12-12 14:42:02,566 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2022-12-12 14:42:02,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 53 transitions, 414 flow [2022-12-12 14:42:02,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:42:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:42:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 57 transitions. [2022-12-12 14:42:02,567 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2022-12-12 14:42:02,567 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 281 flow. Second operand 4 states and 57 transitions. [2022-12-12 14:42:02,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 53 transitions, 414 flow [2022-12-12 14:42:02,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 53 transitions, 275 flow, removed 0 selfloop flow, removed 13 redundant places. [2022-12-12 14:42:02,571 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2022-12-12 14:42:02,571 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2022-12-12 14:42:02,572 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places. [2022-12-12 14:42:02,572 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2022-12-12 14:42:02,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2022-12-12 14:42:02,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 14:42:02,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 14:42:02,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 14:42:02,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 14:42:02,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 14:42:02,575 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:42:02,577 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 14:42:02,577 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 14:42:02,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 02:42:02 BasicIcfg [2022-12-12 14:42:02,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 14:42:02,580 INFO L158 Benchmark]: Toolchain (without parser) took 5548.65ms. Allocated memory was 222.3MB in the beginning and 379.6MB in the end (delta: 157.3MB). Free memory was 197.6MB in the beginning and 284.0MB in the end (delta: -86.4MB). Peak memory consumption was 71.9MB. Max. memory is 8.0GB. [2022-12-12 14:42:02,580 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 222.3MB. Free memory is still 198.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 14:42:02,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.18ms. Allocated memory is still 222.3MB. Free memory was 197.6MB in the beginning and 174.0MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-12 14:42:02,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.46ms. Allocated memory is still 222.3MB. Free memory was 174.0MB in the beginning and 172.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 14:42:02,581 INFO L158 Benchmark]: Boogie Preprocessor took 26.02ms. Allocated memory is still 222.3MB. Free memory was 172.3MB in the beginning and 170.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 14:42:02,581 INFO L158 Benchmark]: RCFGBuilder took 467.32ms. Allocated memory is still 222.3MB. Free memory was 170.8MB in the beginning and 156.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-12 14:42:02,581 INFO L158 Benchmark]: TraceAbstraction took 4668.01ms. Allocated memory was 222.3MB in the beginning and 379.6MB in the end (delta: 157.3MB). Free memory was 155.1MB in the beginning and 284.0MB in the end (delta: -128.9MB). Peak memory consumption was 30.0MB. Max. memory is 8.0GB. [2022-12-12 14:42:02,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 222.3MB. Free memory is still 198.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 338.18ms. Allocated memory is still 222.3MB. Free memory was 197.6MB in the beginning and 174.0MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.46ms. Allocated memory is still 222.3MB. Free memory was 174.0MB in the beginning and 172.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.02ms. Allocated memory is still 222.3MB. Free memory was 172.3MB in the beginning and 170.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 467.32ms. Allocated memory is still 222.3MB. Free memory was 170.8MB in the beginning and 156.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4668.01ms. Allocated memory was 222.3MB in the beginning and 379.6MB in the end (delta: 157.3MB). Free memory was 155.1MB in the beginning and 284.0MB in the end (delta: -128.9MB). Peak memory consumption was 30.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 80 PlacesBefore, 36 PlacesAfterwards, 71 TransitionsBefore, 27 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1150, independent: 1094, independent conditional: 1094, independent unconditional: 0, dependent: 56, dependent conditional: 56, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1150, independent: 1094, independent conditional: 0, independent unconditional: 1094, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1150, independent: 1094, independent conditional: 0, independent unconditional: 1094, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1150, independent: 1094, independent conditional: 0, independent unconditional: 1094, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 836, independent: 802, independent conditional: 0, independent unconditional: 802, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 836, independent: 776, independent conditional: 0, independent unconditional: 776, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 60, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1150, independent: 292, independent conditional: 0, independent unconditional: 292, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 836, unknown conditional: 0, unknown unconditional: 836] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1202, Positive conditional cache size: 0, Positive unconditional cache size: 1202, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, 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 7 procedures, 109 locations, 4 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: 4.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 222 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 222 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 390 IncrementalHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 4 mSDtfsCounter, 390 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=5, InterpolantAutomatonStates: 30, 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, 0.9s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 319 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2022-12-12 14:42:02,597 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...