/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:08:00,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:08:00,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:08:00,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:08:00,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:08:00,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:08:00,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:08:00,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:08:00,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:08:00,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:08:00,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:08:00,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:08:00,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:08:01,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:08:01,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:08:01,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:08:01,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:08:01,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:08:01,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:08:01,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:08:01,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:08:01,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:08:01,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:08:01,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:08:01,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:08:01,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:08:01,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:08:01,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:08:01,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:08:01,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:08:01,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:08:01,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:08:01,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:08:01,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:08:01,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:08:01,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:08:01,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:08:01,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:08:01,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:08:01,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:08:01,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:08:01,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 03:08:01,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:08:01,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:08:01,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:08:01,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:08:01,071 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:08:01,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:08:01,072 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:08:01,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:08:01,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:08:01,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:08:01,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:08:01,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:08:01,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:08:01,073 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:08:01,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:08:01,073 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:08:01,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:08:01,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:08:01,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:08:01,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:08:01,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:08:01,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:08:01,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:08:01,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:08:01,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:08:01,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:08:01,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:08:01,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:08:01,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:08:01,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:08:01,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:08:01,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:08:01,395 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:08:01,396 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:08:01,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-12-13 03:08:02,442 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:08:02,792 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:08:02,793 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-12-13 03:08:02,812 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/105e7eefe/28bb0e447c3041539c0ab121996f518a/FLAG7d09245bd [2022-12-13 03:08:02,827 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/105e7eefe/28bb0e447c3041539c0ab121996f518a [2022-12-13 03:08:02,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:08:02,830 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:08:02,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:08:02,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:08:02,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:08:02,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:08:02" (1/1) ... [2022-12-13 03:08:02,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe5568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:02, skipping insertion in model container [2022-12-13 03:08:02,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:08:02" (1/1) ... [2022-12-13 03:08:02,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:08:02,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:08:03,007 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/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-12-13 03:08:03,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,211 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,211 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,212 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,213 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,213 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:08:03,267 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:08:03,275 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/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-12-13 03:08:03,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:08:03,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:08:03,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:08:03,364 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:08:03,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03 WrapperNode [2022-12-13 03:08:03,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:08:03,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:08:03,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:08:03,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:08:03,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,419 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2022-12-13 03:08:03,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:08:03,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:08:03,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:08:03,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:08:03,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,436 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:08:03,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:08:03,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:08:03,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:08:03,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (1/1) ... [2022-12-13 03:08:03,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:08:03,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:08:03,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 03:08:03,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 03:08:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:08:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 03:08:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:08:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:08:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:08:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 03:08:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 03:08:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 03:08:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 03:08:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 03:08:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 03:08:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 03:08:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 03:08:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:08:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 03:08:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:08:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:08:03,540 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:08:03,678 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:08:03,679 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:08:03,926 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:08:04,059 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:08:04,060 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:08:04,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:08:04 BoogieIcfgContainer [2022-12-13 03:08:04,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:08:04,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:08:04,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:08:04,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:08:04,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:08:02" (1/3) ... [2022-12-13 03:08:04,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c54ba79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:08:04, skipping insertion in model container [2022-12-13 03:08:04,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:08:03" (2/3) ... [2022-12-13 03:08:04,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c54ba79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:08:04, skipping insertion in model container [2022-12-13 03:08:04,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:08:04" (3/3) ... [2022-12-13 03:08:04,070 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-12-13 03:08:04,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:08:04,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 03:08:04,088 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:08:04,155 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 03:08:04,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 129 transitions, 278 flow [2022-12-13 03:08:04,258 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-12-13 03:08:04,258 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:08:04,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 2/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-13 03:08:04,267 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 129 transitions, 278 flow [2022-12-13 03:08:04,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 125 transitions, 262 flow [2022-12-13 03:08:04,272 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:08:04,288 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 125 transitions, 262 flow [2022-12-13 03:08:04,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 125 transitions, 262 flow [2022-12-13 03:08:04,391 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-12-13 03:08:04,392 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:08:04,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 2/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-13 03:08:04,395 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 125 transitions, 262 flow [2022-12-13 03:08:04,395 INFO L226 LiptonReduction]: Number of co-enabled transitions 2936 [2022-12-13 03:08:12,679 INFO L241 LiptonReduction]: Total number of compositions: 100 [2022-12-13 03:08:12,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:08:12,695 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d2ccbb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:08:12,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 03:08:12,699 INFO L130 PetriNetUnfolder]: 0/25 cut-off events. [2022-12-13 03:08:12,699 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:08:12,699 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:08:12,700 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:08:12,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:08:12,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:08:12,715 INFO L85 PathProgramCache]: Analyzing trace with hash -619695006, now seen corresponding path program 1 times [2022-12-13 03:08:12,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:08:12,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475833231] [2022-12-13 03:08:12,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:08:12,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:08:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:08:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:08:13,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:08:13,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475833231] [2022-12-13 03:08:13,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475833231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:08:13,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:08:13,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:08:13,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264595803] [2022-12-13 03:08:13,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:08:13,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:08:13,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:08:13,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:08:13,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:08:13,128 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 67 [2022-12-13 03:08:13,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 67 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:13,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:08:13,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 67 [2022-12-13 03:08:13,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:08:18,959 INFO L130 PetriNetUnfolder]: 42055/62575 cut-off events. [2022-12-13 03:08:18,959 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-12-13 03:08:19,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118479 conditions, 62575 events. 42055/62575 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 3808. Compared 514099 event pairs, 5495 based on Foata normal form. 0/37016 useless extension candidates. Maximal degree in co-relation 118467. Up to 47761 conditions per place. [2022-12-13 03:08:19,130 INFO L137 encePairwiseOnDemand]: 61/67 looper letters, 36 selfloop transitions, 3 changer transitions 48/101 dead transitions. [2022-12-13 03:08:19,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 101 transitions, 388 flow [2022-12-13 03:08:19,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:08:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:08:19,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2022-12-13 03:08:19,139 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-13 03:08:19,141 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2022-12-13 03:08:19,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 101 transitions, 388 flow [2022-12-13 03:08:19,215 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 53 transitions, 196 flow [2022-12-13 03:08:19,653 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:08:19,654 INFO L89 Accepts]: Start accepts. Operand has 55 places, 53 transitions, 196 flow [2022-12-13 03:08:19,658 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:08:19,658 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:08:19,658 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 53 transitions, 196 flow [2022-12-13 03:08:19,677 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 53 transitions, 196 flow [2022-12-13 03:08:19,677 INFO L226 LiptonReduction]: Number of co-enabled transitions 816 [2022-12-13 03:08:21,922 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:08:21,925 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2272 [2022-12-13 03:08:21,926 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 196 flow [2022-12-13 03:08:21,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:21,926 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:08:21,926 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:08:21,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:08:21,929 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:08:21,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:08:21,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1473692271, now seen corresponding path program 1 times [2022-12-13 03:08:21,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:08:21,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177903905] [2022-12-13 03:08:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:08:21,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:08:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:08:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:08:22,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:08:22,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177903905] [2022-12-13 03:08:22,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177903905] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:08:22,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:08:22,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:08:22,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172973370] [2022-12-13 03:08:22,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:08:22,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:08:22,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:08:22,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:08:22,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:08:22,314 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2022-12-13 03:08:22,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:22,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:08:22,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2022-12-13 03:08:22,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:08:24,141 INFO L130 PetriNetUnfolder]: 20650/29427 cut-off events. [2022-12-13 03:08:24,141 INFO L131 PetriNetUnfolder]: For 4078/4078 co-relation queries the response was YES. [2022-12-13 03:08:24,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80207 conditions, 29427 events. 20650/29427 cut-off events. For 4078/4078 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 178863 event pairs, 2874 based on Foata normal form. 1080/24676 useless extension candidates. Maximal degree in co-relation 80192. Up to 20403 conditions per place. [2022-12-13 03:08:24,301 INFO L137 encePairwiseOnDemand]: 29/40 looper letters, 66 selfloop transitions, 10 changer transitions 1/86 dead transitions. [2022-12-13 03:08:24,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 86 transitions, 468 flow [2022-12-13 03:08:24,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:08:24,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:08:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2022-12-13 03:08:24,302 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.64375 [2022-12-13 03:08:24,303 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -21 predicate places. [2022-12-13 03:08:24,303 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 86 transitions, 468 flow [2022-12-13 03:08:24,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 85 transitions, 462 flow [2022-12-13 03:08:24,571 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:08:24,572 INFO L89 Accepts]: Start accepts. Operand has 57 places, 85 transitions, 462 flow [2022-12-13 03:08:24,573 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:08:24,573 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:08:24,573 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 85 transitions, 462 flow [2022-12-13 03:08:24,577 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 85 transitions, 462 flow [2022-12-13 03:08:24,577 INFO L226 LiptonReduction]: Number of co-enabled transitions 934 [2022-12-13 03:08:27,158 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:08:27,160 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2589 [2022-12-13 03:08:27,160 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 85 transitions, 464 flow [2022-12-13 03:08:27,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:27,160 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:08:27,160 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:08:27,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:08:27,160 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:08:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:08:27,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1120983534, now seen corresponding path program 1 times [2022-12-13 03:08:27,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:08:27,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089060905] [2022-12-13 03:08:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:08:27,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:08:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:08:27,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:08:27,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:08:27,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089060905] [2022-12-13 03:08:27,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089060905] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:08:27,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:08:27,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:08:27,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716028548] [2022-12-13 03:08:27,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:08:27,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:08:27,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:08:27,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:08:27,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:08:27,303 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2022-12-13 03:08:27,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 85 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:27,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:08:27,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2022-12-13 03:08:27,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:08:29,775 INFO L130 PetriNetUnfolder]: 18697/26989 cut-off events. [2022-12-13 03:08:29,775 INFO L131 PetriNetUnfolder]: For 10937/10937 co-relation queries the response was YES. [2022-12-13 03:08:29,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94615 conditions, 26989 events. 18697/26989 cut-off events. For 10937/10937 co-relation queries the response was YES. Maximal size of possible extension queue 1146. Compared 168303 event pairs, 1211 based on Foata normal form. 130/22045 useless extension candidates. Maximal degree in co-relation 94597. Up to 20808 conditions per place. [2022-12-13 03:08:29,973 INFO L137 encePairwiseOnDemand]: 36/42 looper letters, 96 selfloop transitions, 8 changer transitions 0/122 dead transitions. [2022-12-13 03:08:29,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 122 transitions, 892 flow [2022-12-13 03:08:29,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:08:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:08:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2022-12-13 03:08:29,975 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2022-12-13 03:08:29,976 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -20 predicate places. [2022-12-13 03:08:29,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 122 transitions, 892 flow [2022-12-13 03:08:30,111 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 122 transitions, 892 flow [2022-12-13 03:08:30,264 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:08:30,264 INFO L89 Accepts]: Start accepts. Operand has 59 places, 122 transitions, 892 flow [2022-12-13 03:08:30,265 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:08:30,265 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:08:30,266 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 122 transitions, 892 flow [2022-12-13 03:08:30,270 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 122 transitions, 892 flow [2022-12-13 03:08:30,270 INFO L226 LiptonReduction]: Number of co-enabled transitions 1216 [2022-12-13 03:08:30,339 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:08:30,340 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 76 [2022-12-13 03:08:30,340 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 122 transitions, 892 flow [2022-12-13 03:08:30,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:30,341 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:08:30,341 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:08:30,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:08:30,341 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:08:30,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:08:30,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1981533662, now seen corresponding path program 1 times [2022-12-13 03:08:30,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:08:30,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487579811] [2022-12-13 03:08:30,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:08:30,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:08:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:08:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:08:30,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:08:30,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487579811] [2022-12-13 03:08:30,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487579811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:08:30,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:08:30,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:08:30,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766282758] [2022-12-13 03:08:30,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:08:30,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:08:30,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:08:30,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:08:30,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:08:30,514 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2022-12-13 03:08:30,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 122 transitions, 892 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:30,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:08:30,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2022-12-13 03:08:30,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:08:33,993 INFO L130 PetriNetUnfolder]: 25007/36874 cut-off events. [2022-12-13 03:08:33,994 INFO L131 PetriNetUnfolder]: For 32256/32256 co-relation queries the response was YES. [2022-12-13 03:08:34,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157915 conditions, 36874 events. 25007/36874 cut-off events. For 32256/32256 co-relation queries the response was YES. Maximal size of possible extension queue 1613. Compared 252482 event pairs, 1261 based on Foata normal form. 1350/30460 useless extension candidates. Maximal degree in co-relation 157894. Up to 28333 conditions per place. [2022-12-13 03:08:34,190 INFO L137 encePairwiseOnDemand]: 36/41 looper letters, 133 selfloop transitions, 9 changer transitions 7/167 dead transitions. [2022-12-13 03:08:34,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 167 transitions, 1553 flow [2022-12-13 03:08:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:08:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:08:34,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2022-12-13 03:08:34,193 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7235772357723578 [2022-12-13 03:08:34,195 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -18 predicate places. [2022-12-13 03:08:34,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 167 transitions, 1553 flow [2022-12-13 03:08:34,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 160 transitions, 1485 flow [2022-12-13 03:08:34,513 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:08:34,514 INFO L89 Accepts]: Start accepts. Operand has 61 places, 160 transitions, 1485 flow [2022-12-13 03:08:34,514 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:08:34,515 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:08:34,515 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 160 transitions, 1485 flow [2022-12-13 03:08:34,518 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 160 transitions, 1485 flow [2022-12-13 03:08:34,518 INFO L226 LiptonReduction]: Number of co-enabled transitions 1532 [2022-12-13 03:08:34,588 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:08:34,589 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 76 [2022-12-13 03:08:34,589 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 160 transitions, 1485 flow [2022-12-13 03:08:34,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:34,589 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:08:34,589 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:08:34,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 03:08:34,590 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:08:34,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:08:34,590 INFO L85 PathProgramCache]: Analyzing trace with hash -390958439, now seen corresponding path program 1 times [2022-12-13 03:08:34,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:08:34,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267802475] [2022-12-13 03:08:34,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:08:34,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:08:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:08:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:08:34,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:08:34,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267802475] [2022-12-13 03:08:34,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267802475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:08:34,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:08:34,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:08:34,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222029285] [2022-12-13 03:08:34,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:08:34,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:08:34,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:08:34,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:08:34,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:08:34,885 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2022-12-13 03:08:34,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 160 transitions, 1485 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:34,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:08:34,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2022-12-13 03:08:34,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:08:37,879 INFO L130 PetriNetUnfolder]: 24316/35894 cut-off events. [2022-12-13 03:08:37,880 INFO L131 PetriNetUnfolder]: For 28905/28905 co-relation queries the response was YES. [2022-12-13 03:08:37,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188445 conditions, 35894 events. 24316/35894 cut-off events. For 28905/28905 co-relation queries the response was YES. Maximal size of possible extension queue 1573. Compared 244711 event pairs, 1020 based on Foata normal form. 100/28307 useless extension candidates. Maximal degree in co-relation 188421. Up to 27726 conditions per place. [2022-12-13 03:08:38,087 INFO L137 encePairwiseOnDemand]: 27/41 looper letters, 219 selfloop transitions, 42 changer transitions 0/270 dead transitions. [2022-12-13 03:08:38,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 270 transitions, 3072 flow [2022-12-13 03:08:38,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:08:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:08:38,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2022-12-13 03:08:38,090 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7134146341463414 [2022-12-13 03:08:38,091 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -15 predicate places. [2022-12-13 03:08:38,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 270 transitions, 3072 flow [2022-12-13 03:08:38,235 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 270 transitions, 3072 flow [2022-12-13 03:08:38,437 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:08:38,437 INFO L89 Accepts]: Start accepts. Operand has 64 places, 270 transitions, 3072 flow [2022-12-13 03:08:38,438 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:08:38,438 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:08:38,439 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 270 transitions, 3072 flow [2022-12-13 03:08:38,447 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 270 transitions, 3072 flow [2022-12-13 03:08:38,447 INFO L226 LiptonReduction]: Number of co-enabled transitions 2278 [2022-12-13 03:08:38,508 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:08:38,508 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 71 [2022-12-13 03:08:38,509 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 270 transitions, 3072 flow [2022-12-13 03:08:38,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:38,509 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:08:38,509 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:08:38,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 03:08:38,509 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:08:38,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:08:38,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2147202178, now seen corresponding path program 1 times [2022-12-13 03:08:38,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:08:38,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374802537] [2022-12-13 03:08:38,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:08:38,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:08:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:08:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:08:38,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:08:38,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374802537] [2022-12-13 03:08:38,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374802537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:08:38,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:08:38,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:08:38,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3564317] [2022-12-13 03:08:38,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:08:38,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:08:38,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:08:38,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:08:38,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:08:38,680 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2022-12-13 03:08:38,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 270 transitions, 3072 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:38,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:08:38,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2022-12-13 03:08:38,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:08:43,125 INFO L130 PetriNetUnfolder]: 32290/48452 cut-off events. [2022-12-13 03:08:43,126 INFO L131 PetriNetUnfolder]: For 60956/60956 co-relation queries the response was YES. [2022-12-13 03:08:43,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294120 conditions, 48452 events. 32290/48452 cut-off events. For 60956/60956 co-relation queries the response was YES. Maximal size of possible extension queue 2205. Compared 355217 event pairs, 1370 based on Foata normal form. 1125/38185 useless extension candidates. Maximal degree in co-relation 294093. Up to 37948 conditions per place. [2022-12-13 03:08:43,398 INFO L137 encePairwiseOnDemand]: 36/41 looper letters, 282 selfloop transitions, 16 changer transitions 46/369 dead transitions. [2022-12-13 03:08:43,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 369 transitions, 4953 flow [2022-12-13 03:08:43,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:08:43,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:08:43,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2022-12-13 03:08:43,401 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7317073170731707 [2022-12-13 03:08:43,402 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -13 predicate places. [2022-12-13 03:08:43,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 369 transitions, 4953 flow [2022-12-13 03:08:43,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 323 transitions, 4323 flow [2022-12-13 03:08:43,889 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:08:43,890 INFO L89 Accepts]: Start accepts. Operand has 66 places, 323 transitions, 4323 flow [2022-12-13 03:08:43,891 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:08:43,891 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:08:43,891 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 323 transitions, 4323 flow [2022-12-13 03:08:43,900 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 323 transitions, 4323 flow [2022-12-13 03:08:43,900 INFO L226 LiptonReduction]: Number of co-enabled transitions 2664 [2022-12-13 03:08:43,968 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:08:43,969 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 80 [2022-12-13 03:08:43,969 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 323 transitions, 4323 flow [2022-12-13 03:08:43,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:43,969 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:08:43,969 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:08:43,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 03:08:43,969 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:08:43,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:08:43,970 INFO L85 PathProgramCache]: Analyzing trace with hash 835170622, now seen corresponding path program 1 times [2022-12-13 03:08:43,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:08:43,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157065779] [2022-12-13 03:08:43,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:08:43,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:08:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:08:44,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:08:44,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:08:44,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157065779] [2022-12-13 03:08:44,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157065779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:08:44,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:08:44,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:08:44,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461229791] [2022-12-13 03:08:44,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:08:44,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:08:44,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:08:44,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:08:44,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:08:44,419 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2022-12-13 03:08:44,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 323 transitions, 4323 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:44,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:08:44,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2022-12-13 03:08:44,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:08:49,066 INFO L130 PetriNetUnfolder]: 27688/42168 cut-off events. [2022-12-13 03:08:49,066 INFO L131 PetriNetUnfolder]: For 75369/75369 co-relation queries the response was YES. [2022-12-13 03:08:49,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290879 conditions, 42168 events. 27688/42168 cut-off events. For 75369/75369 co-relation queries the response was YES. Maximal size of possible extension queue 2193. Compared 313400 event pairs, 1088 based on Foata normal form. 80/31943 useless extension candidates. Maximal degree in co-relation 290849. Up to 33236 conditions per place. [2022-12-13 03:08:49,367 INFO L137 encePairwiseOnDemand]: 34/40 looper letters, 382 selfloop transitions, 30 changer transitions 14/449 dead transitions. [2022-12-13 03:08:49,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 449 transitions, 6903 flow [2022-12-13 03:08:49,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:08:49,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:08:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2022-12-13 03:08:49,369 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.65 [2022-12-13 03:08:49,369 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -10 predicate places. [2022-12-13 03:08:49,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 449 transitions, 6903 flow [2022-12-13 03:08:49,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 435 transitions, 6679 flow [2022-12-13 03:08:49,785 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:08:49,785 INFO L89 Accepts]: Start accepts. Operand has 69 places, 435 transitions, 6679 flow [2022-12-13 03:08:49,787 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:08:49,787 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:08:49,787 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 435 transitions, 6679 flow [2022-12-13 03:08:49,802 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 435 transitions, 6679 flow [2022-12-13 03:08:49,802 INFO L226 LiptonReduction]: Number of co-enabled transitions 3252 [2022-12-13 03:08:49,847 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:08:49,848 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 63 [2022-12-13 03:08:49,848 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 435 transitions, 6679 flow [2022-12-13 03:08:49,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:49,848 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:08:49,848 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:08:49,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 03:08:49,848 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:08:49,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:08:49,849 INFO L85 PathProgramCache]: Analyzing trace with hash 118282256, now seen corresponding path program 1 times [2022-12-13 03:08:49,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:08:49,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945429169] [2022-12-13 03:08:49,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:08:49,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:08:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:08:50,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:08:50,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:08:50,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945429169] [2022-12-13 03:08:50,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945429169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:08:50,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:08:50,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:08:50,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364204871] [2022-12-13 03:08:50,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:08:50,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 03:08:50,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:08:50,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 03:08:50,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 03:08:50,146 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2022-12-13 03:08:50,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 435 transitions, 6679 flow. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:50,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:08:50,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2022-12-13 03:08:50,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:08:55,614 INFO L130 PetriNetUnfolder]: 28727/43585 cut-off events. [2022-12-13 03:08:55,614 INFO L131 PetriNetUnfolder]: For 124845/124845 co-relation queries the response was YES. [2022-12-13 03:08:55,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336544 conditions, 43585 events. 28727/43585 cut-off events. For 124845/124845 co-relation queries the response was YES. Maximal size of possible extension queue 2157. Compared 322530 event pairs, 1068 based on Foata normal form. 80/33358 useless extension candidates. Maximal degree in co-relation 336511. Up to 34443 conditions per place. [2022-12-13 03:08:55,897 INFO L137 encePairwiseOnDemand]: 32/40 looper letters, 453 selfloop transitions, 42 changer transitions 32/550 dead transitions. [2022-12-13 03:08:55,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 550 transitions, 9585 flow [2022-12-13 03:08:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:08:55,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:08:55,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2022-12-13 03:08:55,898 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.635 [2022-12-13 03:08:55,901 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -6 predicate places. [2022-12-13 03:08:55,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 550 transitions, 9585 flow [2022-12-13 03:08:56,072 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 518 transitions, 9009 flow [2022-12-13 03:08:56,379 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:08:56,379 INFO L89 Accepts]: Start accepts. Operand has 73 places, 518 transitions, 9009 flow [2022-12-13 03:08:56,382 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:08:56,383 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:08:56,383 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 518 transitions, 9009 flow [2022-12-13 03:08:56,403 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 518 transitions, 9009 flow [2022-12-13 03:08:56,403 INFO L226 LiptonReduction]: Number of co-enabled transitions 3708 [2022-12-13 03:08:56,452 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:08:56,454 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 75 [2022-12-13 03:08:56,454 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 518 transitions, 9009 flow [2022-12-13 03:08:56,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:56,455 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:08:56,455 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:08:56,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 03:08:56,455 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:08:56,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:08:56,455 INFO L85 PathProgramCache]: Analyzing trace with hash -724188440, now seen corresponding path program 2 times [2022-12-13 03:08:56,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:08:56,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254197215] [2022-12-13 03:08:56,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:08:56,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:08:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:08:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:08:56,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:08:56,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254197215] [2022-12-13 03:08:56,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254197215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:08:56,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:08:56,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:08:56,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696903818] [2022-12-13 03:08:56,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:08:56,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 03:08:56,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:08:56,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 03:08:56,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 03:08:56,935 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2022-12-13 03:08:56,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 518 transitions, 9009 flow. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:08:56,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:08:56,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2022-12-13 03:08:56,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:09:01,977 INFO L130 PetriNetUnfolder]: 32696/49591 cut-off events. [2022-12-13 03:09:01,978 INFO L131 PetriNetUnfolder]: For 220842/220842 co-relation queries the response was YES. [2022-12-13 03:09:02,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421755 conditions, 49591 events. 32696/49591 cut-off events. For 220842/220842 co-relation queries the response was YES. Maximal size of possible extension queue 2553. Compared 375469 event pairs, 1164 based on Foata normal form. 280/38181 useless extension candidates. Maximal degree in co-relation 421719. Up to 39134 conditions per place. [2022-12-13 03:09:02,438 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 511 selfloop transitions, 46 changer transitions 40/620 dead transitions. [2022-12-13 03:09:02,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 620 transitions, 12039 flow [2022-12-13 03:09:02,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:09:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:09:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2022-12-13 03:09:02,441 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.64 [2022-12-13 03:09:02,441 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, -2 predicate places. [2022-12-13 03:09:02,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 620 transitions, 12039 flow [2022-12-13 03:09:02,651 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 580 transitions, 11239 flow [2022-12-13 03:09:03,085 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:09:03,086 INFO L89 Accepts]: Start accepts. Operand has 77 places, 580 transitions, 11239 flow [2022-12-13 03:09:03,087 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:09:03,088 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:09:03,088 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 580 transitions, 11239 flow [2022-12-13 03:09:03,117 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 580 transitions, 11239 flow [2022-12-13 03:09:03,117 INFO L226 LiptonReduction]: Number of co-enabled transitions 4126 [2022-12-13 03:09:03,180 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:09:03,180 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 95 [2022-12-13 03:09:03,180 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 580 transitions, 11239 flow [2022-12-13 03:09:03,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:09:03,181 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:09:03,181 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:09:03,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 03:09:03,181 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:09:03,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:09:03,181 INFO L85 PathProgramCache]: Analyzing trace with hash 120473336, now seen corresponding path program 3 times [2022-12-13 03:09:03,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:09:03,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191820805] [2022-12-13 03:09:03,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:09:03,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:09:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:09:03,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:09:03,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:09:03,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191820805] [2022-12-13 03:09:03,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191820805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:09:03,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:09:03,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:09:03,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488634218] [2022-12-13 03:09:03,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:09:03,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:09:03,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:09:03,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:09:03,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:09:03,437 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2022-12-13 03:09:03,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 580 transitions, 11239 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:09:03,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:09:03,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2022-12-13 03:09:03,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:09:09,509 INFO L130 PetriNetUnfolder]: 32199/49366 cut-off events. [2022-12-13 03:09:09,509 INFO L131 PetriNetUnfolder]: For 275162/275162 co-relation queries the response was YES. [2022-12-13 03:09:09,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460038 conditions, 49366 events. 32199/49366 cut-off events. For 275162/275162 co-relation queries the response was YES. Maximal size of possible extension queue 2594. Compared 380552 event pairs, 928 based on Foata normal form. 200/38039 useless extension candidates. Maximal degree in co-relation 459999. Up to 39079 conditions per place. [2022-12-13 03:09:09,959 INFO L137 encePairwiseOnDemand]: 32/40 looper letters, 557 selfloop transitions, 65 changer transitions 23/668 dead transitions. [2022-12-13 03:09:09,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 668 transitions, 14289 flow [2022-12-13 03:09:09,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 03:09:09,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 03:09:09,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2022-12-13 03:09:09,960 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2022-12-13 03:09:09,961 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 3 predicate places. [2022-12-13 03:09:09,961 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 668 transitions, 14289 flow [2022-12-13 03:09:10,180 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 645 transitions, 13783 flow [2022-12-13 03:09:10,649 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:09:10,649 INFO L89 Accepts]: Start accepts. Operand has 82 places, 645 transitions, 13783 flow [2022-12-13 03:09:10,652 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:09:10,652 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:09:10,653 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 645 transitions, 13783 flow [2022-12-13 03:09:10,688 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 645 transitions, 13783 flow [2022-12-13 03:09:10,688 INFO L226 LiptonReduction]: Number of co-enabled transitions 4546 [2022-12-13 03:09:10,741 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:09:10,742 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 93 [2022-12-13 03:09:10,742 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 645 transitions, 13783 flow [2022-12-13 03:09:10,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:09:10,743 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:09:10,743 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:09:10,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 03:09:10,743 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:09:10,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:09:10,743 INFO L85 PathProgramCache]: Analyzing trace with hash -628228569, now seen corresponding path program 1 times [2022-12-13 03:09:10,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:09:10,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903618924] [2022-12-13 03:09:10,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:09:10,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:09:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:09:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:09:11,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:09:11,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903618924] [2022-12-13 03:09:11,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903618924] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:09:11,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:09:11,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:09:11,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483294517] [2022-12-13 03:09:11,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:09:11,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 03:09:11,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:09:11,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 03:09:11,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 03:09:11,228 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2022-12-13 03:09:11,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 645 transitions, 13783 flow. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:09:11,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:09:11,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2022-12-13 03:09:11,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:09:17,809 INFO L130 PetriNetUnfolder]: 35211/54348 cut-off events. [2022-12-13 03:09:17,810 INFO L131 PetriNetUnfolder]: For 408366/408366 co-relation queries the response was YES. [2022-12-13 03:09:17,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544944 conditions, 54348 events. 35211/54348 cut-off events. For 408366/408366 co-relation queries the response was YES. Maximal size of possible extension queue 3047. Compared 431549 event pairs, 1272 based on Foata normal form. 240/41915 useless extension candidates. Maximal degree in co-relation 544902. Up to 42622 conditions per place. [2022-12-13 03:09:18,189 INFO L137 encePairwiseOnDemand]: 32/40 looper letters, 638 selfloop transitions, 38 changer transitions 36/735 dead transitions. [2022-12-13 03:09:18,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 735 transitions, 17187 flow [2022-12-13 03:09:18,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:09:18,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:09:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2022-12-13 03:09:18,190 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.645 [2022-12-13 03:09:18,191 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 7 predicate places. [2022-12-13 03:09:18,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 735 transitions, 17187 flow [2022-12-13 03:09:18,452 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 699 transitions, 16323 flow [2022-12-13 03:09:18,979 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:09:18,979 INFO L89 Accepts]: Start accepts. Operand has 86 places, 699 transitions, 16323 flow [2022-12-13 03:09:18,981 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:09:18,981 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:09:18,982 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 699 transitions, 16323 flow [2022-12-13 03:09:19,017 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 699 transitions, 16323 flow [2022-12-13 03:09:19,017 INFO L226 LiptonReduction]: Number of co-enabled transitions 4924 [2022-12-13 03:09:19,068 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:09:19,068 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 89 [2022-12-13 03:09:19,068 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 699 transitions, 16323 flow [2022-12-13 03:09:19,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:09:19,069 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:09:19,069 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:09:19,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 03:09:19,069 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:09:19,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:09:19,069 INFO L85 PathProgramCache]: Analyzing trace with hash -975016369, now seen corresponding path program 2 times [2022-12-13 03:09:19,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:09:19,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486233503] [2022-12-13 03:09:19,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:09:19,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:09:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:09:19,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:09:19,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:09:19,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486233503] [2022-12-13 03:09:19,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486233503] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:09:19,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:09:19,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 03:09:19,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842546501] [2022-12-13 03:09:19,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:09:19,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 03:09:19,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:09:19,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 03:09:19,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 03:09:19,462 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2022-12-13 03:09:19,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 699 transitions, 16323 flow. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:09:19,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:09:19,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2022-12-13 03:09:19,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:09:28,228 INFO L130 PetriNetUnfolder]: 34689/54136 cut-off events. [2022-12-13 03:09:28,229 INFO L131 PetriNetUnfolder]: For 485297/485297 co-relation queries the response was YES. [2022-12-13 03:09:28,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581717 conditions, 54136 events. 34689/54136 cut-off events. For 485297/485297 co-relation queries the response was YES. Maximal size of possible extension queue 3089. Compared 438246 event pairs, 1608 based on Foata normal form. 120/41772 useless extension candidates. Maximal degree in co-relation 581672. Up to 42106 conditions per place. [2022-12-13 03:09:28,805 INFO L137 encePairwiseOnDemand]: 34/40 looper letters, 698 selfloop transitions, 92 changer transitions 47/860 dead transitions. [2022-12-13 03:09:28,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 860 transitions, 21861 flow [2022-12-13 03:09:28,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 03:09:28,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 03:09:28,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2022-12-13 03:09:28,807 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6291666666666667 [2022-12-13 03:09:28,808 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2022-12-13 03:09:28,808 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 860 transitions, 21861 flow [2022-12-13 03:09:29,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 813 transitions, 20639 flow [2022-12-13 03:09:29,671 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:09:29,671 INFO L89 Accepts]: Start accepts. Operand has 91 places, 813 transitions, 20639 flow [2022-12-13 03:09:29,674 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:09:29,682 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:09:29,682 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 813 transitions, 20639 flow [2022-12-13 03:09:29,731 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 813 transitions, 20639 flow [2022-12-13 03:09:29,731 INFO L226 LiptonReduction]: Number of co-enabled transitions 5434 [2022-12-13 03:09:29,787 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:09:29,788 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 117 [2022-12-13 03:09:29,788 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 813 transitions, 20639 flow [2022-12-13 03:09:29,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:09:29,789 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:09:29,789 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:09:29,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 03:09:29,789 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:09:29,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:09:29,789 INFO L85 PathProgramCache]: Analyzing trace with hash -560305089, now seen corresponding path program 3 times [2022-12-13 03:09:29,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:09:29,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182801898] [2022-12-13 03:09:29,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:09:29,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:09:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:09:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:09:30,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:09:30,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182801898] [2022-12-13 03:09:30,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182801898] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:09:30,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:09:30,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 03:09:30,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437894433] [2022-12-13 03:09:30,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:09:30,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 03:09:30,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:09:30,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 03:09:30,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 03:09:30,357 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2022-12-13 03:09:30,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 813 transitions, 20639 flow. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:09:30,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:09:30,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2022-12-13 03:09:30,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:09:39,874 INFO L130 PetriNetUnfolder]: 39190/62147 cut-off events. [2022-12-13 03:09:39,875 INFO L131 PetriNetUnfolder]: For 624536/624536 co-relation queries the response was YES. [2022-12-13 03:09:40,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724877 conditions, 62147 events. 39190/62147 cut-off events. For 624536/624536 co-relation queries the response was YES. Maximal size of possible extension queue 3454. Compared 527049 event pairs, 1620 based on Foata normal form. 600/46946 useless extension candidates. Maximal degree in co-relation 724829. Up to 49448 conditions per place. [2022-12-13 03:09:40,497 INFO L137 encePairwiseOnDemand]: 34/40 looper letters, 775 selfloop transitions, 63 changer transitions 25/886 dead transitions. [2022-12-13 03:09:40,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 886 transitions, 24263 flow [2022-12-13 03:09:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:09:40,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:09:40,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2022-12-13 03:09:40,500 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-12-13 03:09:40,500 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 16 predicate places. [2022-12-13 03:09:40,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 886 transitions, 24263 flow [2022-12-13 03:09:41,005 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 861 transitions, 23571 flow [2022-12-13 03:09:41,919 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:09:41,920 INFO L89 Accepts]: Start accepts. Operand has 95 places, 861 transitions, 23571 flow [2022-12-13 03:09:41,925 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:09:41,925 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:09:41,925 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 861 transitions, 23571 flow [2022-12-13 03:09:42,061 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 861 transitions, 23571 flow [2022-12-13 03:09:42,061 INFO L226 LiptonReduction]: Number of co-enabled transitions 5892 [2022-12-13 03:09:42,127 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:09:42,128 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 209 [2022-12-13 03:09:42,128 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 861 transitions, 23571 flow [2022-12-13 03:09:42,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:09:42,129 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:09:42,129 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:09:42,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 03:09:42,129 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:09:42,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:09:42,129 INFO L85 PathProgramCache]: Analyzing trace with hash -560028259, now seen corresponding path program 1 times [2022-12-13 03:09:42,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:09:42,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261054392] [2022-12-13 03:09:42,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:09:42,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:09:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:09:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:09:42,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:09:42,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261054392] [2022-12-13 03:09:42,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261054392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:09:42,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:09:42,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:09:42,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445413426] [2022-12-13 03:09:42,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:09:42,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:09:42,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:09:42,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:09:42,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:09:42,228 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2022-12-13 03:09:42,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 861 transitions, 23571 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:09:42,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:09:42,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2022-12-13 03:09:42,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand