/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:37:17,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:37:17,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:37:17,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:37:17,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:37:17,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:37:17,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:37:17,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:37:17,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:37:17,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:37:17,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:37:17,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:37:17,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:37:17,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:37:17,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:37:17,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:37:17,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:37:17,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:37:17,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:37:17,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:37:17,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:37:17,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:37:17,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:37:17,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:37:17,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:37:17,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:37:17,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:37:17,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:37:17,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:37:17,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:37:17,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:37:17,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:37:17,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:37:17,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:37:17,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:37:17,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:37:17,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:37:17,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:37:17,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:37:17,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:37:17,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:37:17,265 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-NoLbe.epf [2022-12-06 16:37:17,297 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:37:17,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:37:17,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:37:17,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:37:17,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:37:17,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:37:17,300 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:37:17,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:37:17,300 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:37:17,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:37:17,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:37:17,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:37:17,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:37:17,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:37:17,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:37:17,302 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:37:17,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:37:17,302 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:37:17,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:37:17,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:37:17,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:37:17,303 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:37:17,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:37:17,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:37:17,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:37:17,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:37:17,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:37:17,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:37:17,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:37:17,304 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:37:17,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:37:17,304 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:37:17,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:37:17,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:37:17,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:37:17,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:37:17,670 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:37:17,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:37:18,839 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:37:19,079 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:37:19,079 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:37:19,091 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47a070f27/84526430993940789e7f21c6fcddf410/FLAGc627857d6 [2022-12-06 16:37:19,101 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47a070f27/84526430993940789e7f21c6fcddf410 [2022-12-06 16:37:19,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:37:19,104 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:37:19,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:37:19,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:37:19,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:37:19,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b40e6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19, skipping insertion in model container [2022-12-06 16:37:19,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:37:19,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:37:19,275 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/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:37:19,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:37:19,465 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:37:19,478 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/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:37:19,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:37:19,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:37:19,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:37:19,563 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:37:19,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19 WrapperNode [2022-12-06 16:37:19,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:37:19,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:37:19,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:37:19,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:37:19,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,621 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-06 16:37:19,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:37:19,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:37:19,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:37:19,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:37:19,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,648 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:37:19,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:37:19,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:37:19,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:37:19,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (1/1) ... [2022-12-06 16:37:19,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:37:19,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:37:19,688 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) [2022-12-06 16:37:19,715 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 [2022-12-06 16:37:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:37:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:37:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:37:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:37:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:37:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:37:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:37:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:37:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:37:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 16:37:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 16:37:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:37:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:37:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:37:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:37:19,738 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:37:19,897 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:37:19,899 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:37:20,015 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:37:20,026 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:37:20,026 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:37:20,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:37:20 BoogieIcfgContainer [2022-12-06 16:37:20,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:37:20,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:37:20,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:37:20,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:37:20,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:37:19" (1/3) ... [2022-12-06 16:37:20,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6ef79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:37:20, skipping insertion in model container [2022-12-06 16:37:20,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:37:19" (2/3) ... [2022-12-06 16:37:20,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6ef79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:37:20, skipping insertion in model container [2022-12-06 16:37:20,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:37:20" (3/3) ... [2022-12-06 16:37:20,042 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:37:20,056 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:37:20,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:37:20,056 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:37:20,111 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:37:20,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2022-12-06 16:37:20,174 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-12-06 16:37:20,174 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:37:20,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-06 16:37:20,178 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2022-12-06 16:37:20,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2022-12-06 16:37:20,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:37:20,195 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;@7efa7689, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:37:20,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 16:37:20,214 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2022-12-06 16:37:20,214 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:37:20,214 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:20,215 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:20,215 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)] === [2022-12-06 16:37:20,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:20,219 INFO L85 PathProgramCache]: Analyzing trace with hash -989773961, now seen corresponding path program 1 times [2022-12-06 16:37:20,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:20,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525871562] [2022-12-06 16:37:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:20,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:20,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:20,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525871562] [2022-12-06 16:37:20,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525871562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:20,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:20,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:37:20,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237803448] [2022-12-06 16:37:20,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:20,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:37:20,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:21,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:37:21,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:37:21,023 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-06 16:37:21,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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) [2022-12-06 16:37:21,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:21,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-06 16:37:21,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:21,451 INFO L130 PetriNetUnfolder]: 661/1439 cut-off events. [2022-12-06 16:37:21,452 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-06 16:37:21,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2534 conditions, 1439 events. 661/1439 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 9223 event pairs, 143 based on Foata normal form. 48/1441 useless extension candidates. Maximal degree in co-relation 2500. Up to 322 conditions per place. [2022-12-06 16:37:21,467 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 24 selfloop transitions, 7 changer transitions 43/123 dead transitions. [2022-12-06 16:37:21,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 123 transitions, 409 flow [2022-12-06 16:37:21,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:37:21,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:37:21,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 627 transitions. [2022-12-06 16:37:21,486 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8293650793650794 [2022-12-06 16:37:21,491 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 8 predicate places. [2022-12-06 16:37:21,492 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 123 transitions, 409 flow [2022-12-06 16:37:21,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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) [2022-12-06 16:37:21,492 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:21,493 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:21,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:37:21,493 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)] === [2022-12-06 16:37:21,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:21,495 INFO L85 PathProgramCache]: Analyzing trace with hash -383671822, now seen corresponding path program 1 times [2022-12-06 16:37:21,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:21,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827633186] [2022-12-06 16:37:21,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:21,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:21,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:21,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:21,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827633186] [2022-12-06 16:37:21,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827633186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:21,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:21,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:37:21,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586076510] [2022-12-06 16:37:21,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:21,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:37:21,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:21,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:37:21,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:37:21,757 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 84 [2022-12-06 16:37:21,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 123 transitions, 409 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2022-12-06 16:37:21,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:21,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 84 [2022-12-06 16:37:21,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:22,058 INFO L130 PetriNetUnfolder]: 901/2026 cut-off events. [2022-12-06 16:37:22,059 INFO L131 PetriNetUnfolder]: For 221/380 co-relation queries the response was YES. [2022-12-06 16:37:22,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4674 conditions, 2026 events. 901/2026 cut-off events. For 221/380 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 14159 event pairs, 35 based on Foata normal form. 36/2030 useless extension candidates. Maximal degree in co-relation 4636. Up to 519 conditions per place. [2022-12-06 16:37:22,071 INFO L137 encePairwiseOnDemand]: 78/84 looper letters, 27 selfloop transitions, 3 changer transitions 135/221 dead transitions. [2022-12-06 16:37:22,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 221 transitions, 1113 flow [2022-12-06 16:37:22,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:37:22,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:37:22,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 638 transitions. [2022-12-06 16:37:22,073 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.843915343915344 [2022-12-06 16:37:22,074 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 16 predicate places. [2022-12-06 16:37:22,074 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 221 transitions, 1113 flow [2022-12-06 16:37:22,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2022-12-06 16:37:22,074 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:22,075 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:22,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:37:22,075 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)] === [2022-12-06 16:37:22,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:22,076 INFO L85 PathProgramCache]: Analyzing trace with hash 592709818, now seen corresponding path program 1 times [2022-12-06 16:37:22,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:22,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060500592] [2022-12-06 16:37:22,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:22,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:22,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:22,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060500592] [2022-12-06 16:37:22,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060500592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:22,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:22,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:22,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53692892] [2022-12-06 16:37:22,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:22,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:22,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:22,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:22,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:22,313 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-06 16:37:22,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 221 transitions, 1113 flow. Second operand has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 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) [2022-12-06 16:37:22,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:22,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-06 16:37:22,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:22,701 INFO L130 PetriNetUnfolder]: 1047/2396 cut-off events. [2022-12-06 16:37:22,701 INFO L131 PetriNetUnfolder]: For 449/1337 co-relation queries the response was YES. [2022-12-06 16:37:22,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7286 conditions, 2396 events. 1047/2396 cut-off events. For 449/1337 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 18233 event pairs, 11 based on Foata normal form. 53/2423 useless extension candidates. Maximal degree in co-relation 7241. Up to 612 conditions per place. [2022-12-06 16:37:22,714 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 38 selfloop transitions, 14 changer transitions 310/411 dead transitions. [2022-12-06 16:37:22,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 411 transitions, 2909 flow [2022-12-06 16:37:22,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:22,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 896 transitions. [2022-12-06 16:37:22,717 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2022-12-06 16:37:22,719 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 28 predicate places. [2022-12-06 16:37:22,719 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 411 transitions, 2909 flow [2022-12-06 16:37:22,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 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) [2022-12-06 16:37:22,719 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:22,719 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:22,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:37:22,720 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)] === [2022-12-06 16:37:22,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:22,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1412215943, now seen corresponding path program 1 times [2022-12-06 16:37:22,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:22,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190292134] [2022-12-06 16:37:22,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:22,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:22,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:22,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190292134] [2022-12-06 16:37:22,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190292134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:22,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:22,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:22,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729361040] [2022-12-06 16:37:22,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:22,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:22,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:22,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:22,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:22,930 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-06 16:37:22,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 411 transitions, 2909 flow. Second operand has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 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) [2022-12-06 16:37:22,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:22,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-06 16:37:22,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:23,434 INFO L130 PetriNetUnfolder]: 1198/2851 cut-off events. [2022-12-06 16:37:23,434 INFO L131 PetriNetUnfolder]: For 723/2664 co-relation queries the response was YES. [2022-12-06 16:37:23,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10574 conditions, 2851 events. 1198/2851 cut-off events. For 723/2664 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 23381 event pairs, 11 based on Foata normal form. 41/2868 useless extension candidates. Maximal degree in co-relation 10522. Up to 769 conditions per place. [2022-12-06 16:37:23,446 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 44 selfloop transitions, 18 changer transitions 544/655 dead transitions. [2022-12-06 16:37:23,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 655 transitions, 6009 flow [2022-12-06 16:37:23,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:23,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 884 transitions. [2022-12-06 16:37:23,449 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8095238095238095 [2022-12-06 16:37:23,449 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 40 predicate places. [2022-12-06 16:37:23,450 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 655 transitions, 6009 flow [2022-12-06 16:37:23,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 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) [2022-12-06 16:37:23,450 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:23,450 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:23,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:37:23,451 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)] === [2022-12-06 16:37:23,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1389721482, now seen corresponding path program 1 times [2022-12-06 16:37:23,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:23,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955405422] [2022-12-06 16:37:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:23,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:23,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:23,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955405422] [2022-12-06 16:37:23,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955405422] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:23,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:23,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:23,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791374677] [2022-12-06 16:37:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:23,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:23,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:23,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:23,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:23,639 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-06 16:37:23,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 655 transitions, 6009 flow. Second operand has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 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) [2022-12-06 16:37:23,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:23,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-06 16:37:23,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:24,211 INFO L130 PetriNetUnfolder]: 1256/3200 cut-off events. [2022-12-06 16:37:24,212 INFO L131 PetriNetUnfolder]: For 1234/6260 co-relation queries the response was YES. [2022-12-06 16:37:24,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13625 conditions, 3200 events. 1256/3200 cut-off events. For 1234/6260 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 28413 event pairs, 0 based on Foata normal form. 102/3288 useless extension candidates. Maximal degree in co-relation 13566. Up to 865 conditions per place. [2022-12-06 16:37:24,226 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 50 selfloop transitions, 25 changer transitions 849/973 dead transitions. [2022-12-06 16:37:24,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 973 transitions, 10851 flow [2022-12-06 16:37:24,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:24,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 890 transitions. [2022-12-06 16:37:24,228 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.815018315018315 [2022-12-06 16:37:24,229 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 52 predicate places. [2022-12-06 16:37:24,229 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 973 transitions, 10851 flow [2022-12-06 16:37:24,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 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) [2022-12-06 16:37:24,230 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:24,230 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:24,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:37:24,230 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)] === [2022-12-06 16:37:24,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:24,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1338172877, now seen corresponding path program 1 times [2022-12-06 16:37:24,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:24,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570766223] [2022-12-06 16:37:24,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:24,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:24,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:24,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570766223] [2022-12-06 16:37:24,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570766223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:24,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:24,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:24,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983565689] [2022-12-06 16:37:24,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:24,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:24,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:24,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:24,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:24,394 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-06 16:37:24,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 973 transitions, 10851 flow. Second operand has 7 states, 7 states have (on average 63.42857142857143) internal successors, (444), 7 states have internal predecessors, (444), 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) [2022-12-06 16:37:24,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:24,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-06 16:37:24,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:25,120 INFO L130 PetriNetUnfolder]: 1321/3551 cut-off events. [2022-12-06 16:37:25,120 INFO L131 PetriNetUnfolder]: For 1763/10233 co-relation queries the response was YES. [2022-12-06 16:37:25,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17522 conditions, 3551 events. 1321/3551 cut-off events. For 1763/10233 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 33573 event pairs, 0 based on Foata normal form. 81/3617 useless extension candidates. Maximal degree in co-relation 17456. Up to 960 conditions per place. [2022-12-06 16:37:25,135 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 48 selfloop transitions, 30 changer transitions 1047/1174 dead transitions. [2022-12-06 16:37:25,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 1174 transitions, 15507 flow [2022-12-06 16:37:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:25,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 894 transitions. [2022-12-06 16:37:25,141 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8186813186813187 [2022-12-06 16:37:25,144 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 64 predicate places. [2022-12-06 16:37:25,144 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 1174 transitions, 15507 flow [2022-12-06 16:37:25,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.42857142857143) internal successors, (444), 7 states have internal predecessors, (444), 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) [2022-12-06 16:37:25,145 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:25,145 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:25,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:37:25,145 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)] === [2022-12-06 16:37:25,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:25,145 INFO L85 PathProgramCache]: Analyzing trace with hash 677432236, now seen corresponding path program 1 times [2022-12-06 16:37:25,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:25,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918321329] [2022-12-06 16:37:25,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:25,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:25,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:25,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:25,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918321329] [2022-12-06 16:37:25,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918321329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:25,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:25,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:37:25,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122496611] [2022-12-06 16:37:25,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:25,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:37:25,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:25,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:37:25,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:37:25,301 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 84 [2022-12-06 16:37:25,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 1174 transitions, 15507 flow. Second operand has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 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) [2022-12-06 16:37:25,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:25,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 84 [2022-12-06 16:37:25,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:26,081 INFO L130 PetriNetUnfolder]: 1374/4004 cut-off events. [2022-12-06 16:37:26,081 INFO L131 PetriNetUnfolder]: For 2853/3580 co-relation queries the response was YES. [2022-12-06 16:37:26,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14347 conditions, 4004 events. 1374/4004 cut-off events. For 2853/3580 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 39327 event pairs, 50 based on Foata normal form. 57/3907 useless extension candidates. Maximal degree in co-relation 14277. Up to 858 conditions per place. [2022-12-06 16:37:26,114 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 43 selfloop transitions, 17 changer transitions 217/606 dead transitions. [2022-12-06 16:37:26,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 606 transitions, 7537 flow [2022-12-06 16:37:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:37:26,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:37:26,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 718 transitions. [2022-12-06 16:37:26,117 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8547619047619047 [2022-12-06 16:37:26,118 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 73 predicate places. [2022-12-06 16:37:26,118 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 606 transitions, 7537 flow [2022-12-06 16:37:26,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 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) [2022-12-06 16:37:26,119 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:26,119 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:26,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:37:26,119 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:26,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:26,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1651346417, now seen corresponding path program 1 times [2022-12-06 16:37:26,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:26,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667636945] [2022-12-06 16:37:26,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:26,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:26,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:26,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:26,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667636945] [2022-12-06 16:37:26,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667636945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:26,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:26,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:37:26,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423608197] [2022-12-06 16:37:26,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:26,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:37:26,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:26,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:37:26,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:37:26,283 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 84 [2022-12-06 16:37:26,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 606 transitions, 7537 flow. Second operand has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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) [2022-12-06 16:37:26,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:26,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 84 [2022-12-06 16:37:26,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:26,756 INFO L130 PetriNetUnfolder]: 790/2344 cut-off events. [2022-12-06 16:37:26,757 INFO L131 PetriNetUnfolder]: For 3511/4790 co-relation queries the response was YES. [2022-12-06 16:37:26,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7584 conditions, 2344 events. 790/2344 cut-off events. For 3511/4790 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 21244 event pairs, 0 based on Foata normal form. 102/2350 useless extension candidates. Maximal degree in co-relation 7510. Up to 571 conditions per place. [2022-12-06 16:37:26,774 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 43 selfloop transitions, 44 changer transitions 141/336 dead transitions. [2022-12-06 16:37:26,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 336 transitions, 3631 flow [2022-12-06 16:37:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:37:26,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:37:26,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 934 transitions. [2022-12-06 16:37:26,777 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8553113553113553 [2022-12-06 16:37:26,779 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 82 predicate places. [2022-12-06 16:37:26,780 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 336 transitions, 3631 flow [2022-12-06 16:37:26,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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) [2022-12-06 16:37:26,780 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:26,780 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:26,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:37:26,781 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:26,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:26,781 INFO L85 PathProgramCache]: Analyzing trace with hash -2055003134, now seen corresponding path program 1 times [2022-12-06 16:37:26,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:26,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60433619] [2022-12-06 16:37:26,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:26,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:26,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:26,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:26,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60433619] [2022-12-06 16:37:26,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60433619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:26,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:26,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:37:26,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034141312] [2022-12-06 16:37:26,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:26,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:37:26,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:26,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:37:26,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:37:26,937 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 84 [2022-12-06 16:37:26,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 336 transitions, 3631 flow. Second operand has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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) [2022-12-06 16:37:26,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:26,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 84 [2022-12-06 16:37:26,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:27,354 INFO L130 PetriNetUnfolder]: 706/1988 cut-off events. [2022-12-06 16:37:27,355 INFO L131 PetriNetUnfolder]: For 3093/4355 co-relation queries the response was YES. [2022-12-06 16:37:27,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7114 conditions, 1988 events. 706/1988 cut-off events. For 3093/4355 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 17962 event pairs, 0 based on Foata normal form. 195/2097 useless extension candidates. Maximal degree in co-relation 7036. Up to 522 conditions per place. [2022-12-06 16:37:27,365 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 23 selfloop transitions, 40 changer transitions 116/243 dead transitions. [2022-12-06 16:37:27,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 243 transitions, 2437 flow [2022-12-06 16:37:27,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:37:27,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:37:27,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1134 transitions. [2022-12-06 16:37:27,370 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.84375 [2022-12-06 16:37:27,371 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 70 predicate places. [2022-12-06 16:37:27,371 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 243 transitions, 2437 flow [2022-12-06 16:37:27,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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) [2022-12-06 16:37:27,372 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:27,372 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:27,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:37:27,372 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:27,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1181131119, now seen corresponding path program 1 times [2022-12-06 16:37:27,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:27,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543274335] [2022-12-06 16:37:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:27,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:27,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:27,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:27,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543274335] [2022-12-06 16:37:27,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543274335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:27,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:27,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:37:27,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466875671] [2022-12-06 16:37:27,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:27,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:37:27,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:27,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:37:27,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:37:27,525 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-06 16:37:27,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 243 transitions, 2437 flow. Second operand has 8 states, 8 states have (on average 63.375) internal successors, (507), 8 states have internal predecessors, (507), 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) [2022-12-06 16:37:27,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:27,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-06 16:37:27,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:27,921 INFO L130 PetriNetUnfolder]: 1075/2881 cut-off events. [2022-12-06 16:37:27,921 INFO L131 PetriNetUnfolder]: For 3921/5384 co-relation queries the response was YES. [2022-12-06 16:37:27,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10391 conditions, 2881 events. 1075/2881 cut-off events. For 3921/5384 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 27880 event pairs, 0 based on Foata normal form. 109/2882 useless extension candidates. Maximal degree in co-relation 10306. Up to 830 conditions per place. [2022-12-06 16:37:27,933 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 12 selfloop transitions, 7 changer transitions 196/269 dead transitions. [2022-12-06 16:37:27,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 269 transitions, 3082 flow [2022-12-06 16:37:27,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:37:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:37:27,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 779 transitions. [2022-12-06 16:37:27,935 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7728174603174603 [2022-12-06 16:37:27,936 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 81 predicate places. [2022-12-06 16:37:27,936 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 269 transitions, 3082 flow [2022-12-06 16:37:27,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.375) internal successors, (507), 8 states have internal predecessors, (507), 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) [2022-12-06 16:37:27,937 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:37:27,937 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:27,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:37:27,937 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:37:27,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:37:27,937 INFO L85 PathProgramCache]: Analyzing trace with hash -162189075, now seen corresponding path program 2 times [2022-12-06 16:37:27,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:37:27,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820072342] [2022-12-06 16:37:27,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:37:27,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:37:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:37:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:37:28,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:37:28,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820072342] [2022-12-06 16:37:28,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820072342] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:37:28,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:37:28,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:37:28,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326959660] [2022-12-06 16:37:28,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:37:28,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:37:28,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:37:28,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:37:28,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:37:28,085 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-06 16:37:28,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 269 transitions, 3082 flow. Second operand has 8 states, 8 states have (on average 63.375) internal successors, (507), 8 states have internal predecessors, (507), 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) [2022-12-06 16:37:28,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:37:28,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-06 16:37:28,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:37:28,635 INFO L130 PetriNetUnfolder]: 1765/4656 cut-off events. [2022-12-06 16:37:28,636 INFO L131 PetriNetUnfolder]: For 4689/6825 co-relation queries the response was YES. [2022-12-06 16:37:28,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16869 conditions, 4656 events. 1765/4656 cut-off events. For 4689/6825 co-relation queries the response was YES. Maximal size of possible extension queue 706. Compared 49972 event pairs, 0 based on Foata normal form. 38/4462 useless extension candidates. Maximal degree in co-relation 16777. Up to 1376 conditions per place. [2022-12-06 16:37:28,661 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 0 selfloop transitions, 0 changer transitions 315/315 dead transitions. [2022-12-06 16:37:28,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 315 transitions, 4138 flow [2022-12-06 16:37:28,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 16:37:28,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 16:37:28,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 711 transitions. [2022-12-06 16:37:28,663 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7694805194805194 [2022-12-06 16:37:28,664 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 89 predicate places. [2022-12-06 16:37:28,664 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 315 transitions, 4138 flow [2022-12-06 16:37:28,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.375) internal successors, (507), 8 states have internal predecessors, (507), 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) [2022-12-06 16:37:28,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 16:37:28,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 16:37:28,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 16:37:28,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 16:37:28,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 16:37:28,668 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:37:28,671 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:37:28,671 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:37:28,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:37:28 BasicIcfg [2022-12-06 16:37:28,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:37:28,675 INFO L158 Benchmark]: Toolchain (without parser) took 9570.84ms. Allocated memory was 188.7MB in the beginning and 950.0MB in the end (delta: 761.3MB). Free memory was 151.6MB in the beginning and 700.2MB in the end (delta: -548.6MB). Peak memory consumption was 213.2MB. Max. memory is 8.0GB. [2022-12-06 16:37:28,676 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 165.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:37:28,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.84ms. Allocated memory is still 188.7MB. Free memory was 151.6MB in the beginning and 128.0MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-06 16:37:28,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.42ms. Allocated memory is still 188.7MB. Free memory was 128.0MB in the beginning and 125.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:37:28,676 INFO L158 Benchmark]: Boogie Preprocessor took 37.58ms. Allocated memory is still 188.7MB. Free memory was 125.9MB in the beginning and 124.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:37:28,677 INFO L158 Benchmark]: RCFGBuilder took 367.22ms. Allocated memory is still 188.7MB. Free memory was 124.4MB in the beginning and 111.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 16:37:28,677 INFO L158 Benchmark]: TraceAbstraction took 8645.02ms. Allocated memory was 188.7MB in the beginning and 950.0MB in the end (delta: 761.3MB). Free memory was 110.2MB in the beginning and 700.2MB in the end (delta: -590.0MB). Peak memory consumption was 172.3MB. Max. memory is 8.0GB. [2022-12-06 16:37:28,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 165.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 458.84ms. Allocated memory is still 188.7MB. Free memory was 151.6MB in the beginning and 128.0MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.42ms. Allocated memory is still 188.7MB. Free memory was 128.0MB in the beginning and 125.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.58ms. Allocated memory is still 188.7MB. Free memory was 125.9MB in the beginning and 124.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 367.22ms. Allocated memory is still 188.7MB. Free memory was 124.4MB in the beginning and 111.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 8645.02ms. Allocated memory was 188.7MB in the beginning and 950.0MB in the end (delta: 761.3MB). Free memory was 110.2MB in the beginning and 700.2MB in the end (delta: -590.0MB). Peak memory consumption was 172.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 107 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: 8.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 585 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 585 mSDsluCounter, 911 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 673 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 885 IncrementalHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 238 mSDtfsCounter, 885 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15507occurred in iteration=6, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 609 NumberOfCodeBlocks, 609 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 598 ConstructedInterpolants, 0 QuantifiedInterpolants, 2986 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2022-12-06 16:37:28,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...