/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:02:11,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:02:11,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:02:11,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:02:11,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:02:11,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:02:11,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:02:11,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:02:11,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:02:11,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:02:11,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:02:11,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:02:11,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:02:11,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:02:11,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:02:11,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:02:11,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:02:11,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:02:11,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:02:11,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:02:11,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:02:11,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:02:11,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:02:11,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:02:11,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:02:11,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:02:11,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:02:11,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:02:11,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:02:11,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:02:11,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:02:11,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:02:11,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:02:11,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:02:11,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:02:11,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:02:11,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:02:11,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:02:11,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:02:11,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:02:11,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:02:11,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 19:02:11,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:02:11,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:02:11,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:02:11,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:02:11,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:02:11,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:02:11,236 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:02:11,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:02:11,236 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:02:11,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:02:11,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:02:11,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:02:11,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:02:11,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:02:11,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:02:11,237 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:02:11,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:02:11,237 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:02:11,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:02:11,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:02:11,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:02:11,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:02:11,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:02:11,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:02:11,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:02:11,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:02:11,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:02:11,238 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:02:11,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:02:11,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:02:11,239 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:02:11,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:02:11,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:02:11,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:02:11,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:02:11,506 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:02:11,507 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:02:11,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-12-11 19:02:12,521 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:02:12,760 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:02:12,761 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-12-11 19:02:12,777 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99d106f7/a945411694494393a9523bce15e61d20/FLAGa79eadc62 [2022-12-11 19:02:12,789 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99d106f7/a945411694494393a9523bce15e61d20 [2022-12-11 19:02:12,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:02:12,792 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:02:12,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:02:12,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:02:12,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:02:12,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:02:12" (1/1) ... [2022-12-11 19:02:12,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7698340d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:12, skipping insertion in model container [2022-12-11 19:02:12,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:02:12" (1/1) ... [2022-12-11 19:02:12,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:02:12,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:02:12,987 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/mix030_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-11 19:02:13,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,120 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,121 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,121 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,121 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,174 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,176 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:02:13,185 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:02:13,193 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/mix030_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-11 19:02:13,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,244 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,244 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,244 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,245 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:02:13,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:02:13,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:02:13,285 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:02:13,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13 WrapperNode [2022-12-11 19:02:13,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:02:13,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:02:13,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:02:13,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:02:13,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,348 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 143 [2022-12-11 19:02:13,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:02:13,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:02:13,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:02:13,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:02:13,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,383 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:02:13,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:02:13,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:02:13,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:02:13,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (1/1) ... [2022-12-11 19:02:13,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:02:13,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:02:13,435 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) [2022-12-11 19:02:13,450 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 [2022-12-11 19:02:13,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:02:13,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:02:13,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:02:13,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:02:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:02:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 19:02:13,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 19:02:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 19:02:13,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 19:02:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 19:02:13,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 19:02:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-11 19:02:13,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-11 19:02:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:02:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:02:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:02:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:02:13,488 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:02:13,642 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:02:13,644 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:02:13,893 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:02:13,979 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:02:13,979 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:02:13,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:02:13 BoogieIcfgContainer [2022-12-11 19:02:13,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:02:13,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:02:13,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:02:13,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:02:13,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:02:12" (1/3) ... [2022-12-11 19:02:13,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774a5911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:02:13, skipping insertion in model container [2022-12-11 19:02:13,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:02:13" (2/3) ... [2022-12-11 19:02:13,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774a5911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:02:13, skipping insertion in model container [2022-12-11 19:02:13,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:02:13" (3/3) ... [2022-12-11 19:02:13,987 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-12-11 19:02:14,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:02:14,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-11 19:02:14,001 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:02:14,056 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 19:02:14,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 129 transitions, 278 flow [2022-12-11 19:02:14,140 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-12-11 19:02:14,140 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:02:14,145 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 72 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-11 19:02:14,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 129 transitions, 278 flow [2022-12-11 19:02:14,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 125 transitions, 262 flow [2022-12-11 19:02:14,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:02:14,159 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3de7c459, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:02:14,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-11 19:02:14,166 INFO L130 PetriNetUnfolder]: 0/46 cut-off events. [2022-12-11 19:02:14,166 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:02:14,166 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:02:14,167 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:02:14,167 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:02:14,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:02:14,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1469720224, now seen corresponding path program 1 times [2022-12-11 19:02:14,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:02:14,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717163469] [2022-12-11 19:02:14,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:02:14,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:02:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:02:14,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:02:14,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:02:14,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717163469] [2022-12-11 19:02:14,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717163469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:02:14,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:02:14,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-11 19:02:14,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200192725] [2022-12-11 19:02:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:02:14,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 19:02:14,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:02:14,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 19:02:14,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 19:02:14,542 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 129 [2022-12-11 19:02:14,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 125 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2022-12-11 19:02:14,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:02:14,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 129 [2022-12-11 19:02:14,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:02:14,755 INFO L130 PetriNetUnfolder]: 162/608 cut-off events. [2022-12-11 19:02:14,755 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-11 19:02:14,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 608 events. 162/608 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3374 event pairs, 132 based on Foata normal form. 50/620 useless extension candidates. Maximal degree in co-relation 861. Up to 191 conditions per place. [2022-12-11 19:02:14,765 INFO L137 encePairwiseOnDemand]: 124/129 looper letters, 18 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2022-12-11 19:02:14,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 129 transitions, 319 flow [2022-12-11 19:02:14,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 19:02:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 19:02:14,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2022-12-11 19:02:14,779 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9405684754521964 [2022-12-11 19:02:14,780 INFO L175 Difference]: Start difference. First operand has 136 places, 125 transitions, 262 flow. Second operand 3 states and 364 transitions. [2022-12-11 19:02:14,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 129 transitions, 319 flow [2022-12-11 19:02:14,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 129 transitions, 312 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-11 19:02:14,788 INFO L231 Difference]: Finished difference. Result has 132 places, 121 transitions, 254 flow [2022-12-11 19:02:14,789 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=132, PETRI_TRANSITIONS=121} [2022-12-11 19:02:14,792 INFO L295 CegarLoopForPetriNet]: 136 programPoint places, -4 predicate places. [2022-12-11 19:02:14,793 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 121 transitions, 254 flow [2022-12-11 19:02:14,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2022-12-11 19:02:14,793 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:02:14,793 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:02:14,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:02:14,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:02:14,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:02:14,795 INFO L85 PathProgramCache]: Analyzing trace with hash 463657055, now seen corresponding path program 1 times [2022-12-11 19:02:14,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:02:14,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226153644] [2022-12-11 19:02:14,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:02:14,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:02:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:02:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:02:15,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:02:15,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226153644] [2022-12-11 19:02:15,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226153644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:02:15,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:02:15,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:02:15,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215528525] [2022-12-11 19:02:15,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:02:15,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:02:15,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:02:15,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:02:15,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:02:15,172 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 129 [2022-12-11 19:02:15,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 121 transitions, 254 flow. Second operand has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 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) [2022-12-11 19:02:15,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:02:15,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 129 [2022-12-11 19:02:15,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:02:18,800 INFO L130 PetriNetUnfolder]: 19323/39088 cut-off events. [2022-12-11 19:02:18,800 INFO L131 PetriNetUnfolder]: For 1517/1517 co-relation queries the response was YES. [2022-12-11 19:02:18,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67054 conditions, 39088 events. 19323/39088 cut-off events. For 1517/1517 co-relation queries the response was YES. Maximal size of possible extension queue 1639. Compared 401578 event pairs, 2817 based on Foata normal form. 0/38102 useless extension candidates. Maximal degree in co-relation 66998. Up to 8048 conditions per place. [2022-12-11 19:02:18,988 INFO L137 encePairwiseOnDemand]: 114/129 looper letters, 50 selfloop transitions, 13 changer transitions 135/278 dead transitions. [2022-12-11 19:02:18,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 278 transitions, 974 flow [2022-12-11 19:02:18,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:02:18,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:02:18,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1425 transitions. [2022-12-11 19:02:18,991 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8497316636851521 [2022-12-11 19:02:18,991 INFO L175 Difference]: Start difference. First operand has 132 places, 121 transitions, 254 flow. Second operand 13 states and 1425 transitions. [2022-12-11 19:02:18,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 278 transitions, 974 flow [2022-12-11 19:02:18,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 278 transitions, 948 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-11 19:02:18,996 INFO L231 Difference]: Finished difference. Result has 154 places, 119 transitions, 372 flow [2022-12-11 19:02:18,996 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=372, PETRI_PLACES=154, PETRI_TRANSITIONS=119} [2022-12-11 19:02:18,997 INFO L295 CegarLoopForPetriNet]: 136 programPoint places, 18 predicate places. [2022-12-11 19:02:18,997 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 119 transitions, 372 flow [2022-12-11 19:02:18,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.28571428571429) internal successors, (681), 7 states have internal predecessors, (681), 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) [2022-12-11 19:02:18,998 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:02:18,998 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:02:18,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:02:18,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:02:18,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:02:18,999 INFO L85 PathProgramCache]: Analyzing trace with hash -873037730, now seen corresponding path program 1 times [2022-12-11 19:02:18,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:02:18,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569192622] [2022-12-11 19:02:18,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:02:18,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:02:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:02:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:02:19,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:02:19,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569192622] [2022-12-11 19:02:19,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569192622] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:02:19,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:02:19,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:02:19,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545065915] [2022-12-11 19:02:19,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:02:19,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:02:19,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:02:19,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:02:19,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:02:19,172 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 129 [2022-12-11 19:02:19,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 119 transitions, 372 flow. Second operand has 7 states, 7 states have (on average 97.42857142857143) internal successors, (682), 7 states have internal predecessors, (682), 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) [2022-12-11 19:02:19,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:02:19,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 129 [2022-12-11 19:02:19,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:02:21,667 INFO L130 PetriNetUnfolder]: 12596/21720 cut-off events. [2022-12-11 19:02:21,667 INFO L131 PetriNetUnfolder]: For 36117/36117 co-relation queries the response was YES. [2022-12-11 19:02:21,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65434 conditions, 21720 events. 12596/21720 cut-off events. For 36117/36117 co-relation queries the response was YES. Maximal size of possible extension queue 1070. Compared 180490 event pairs, 1352 based on Foata normal form. 490/21990 useless extension candidates. Maximal degree in co-relation 65362. Up to 4563 conditions per place. [2022-12-11 19:02:21,943 INFO L137 encePairwiseOnDemand]: 117/129 looper letters, 57 selfloop transitions, 13 changer transitions 130/280 dead transitions. [2022-12-11 19:02:21,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 280 transitions, 1628 flow [2022-12-11 19:02:21,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:02:21,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:02:21,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1402 transitions. [2022-12-11 19:02:21,946 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8360166964818128 [2022-12-11 19:02:21,946 INFO L175 Difference]: Start difference. First operand has 154 places, 119 transitions, 372 flow. Second operand 13 states and 1402 transitions. [2022-12-11 19:02:21,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 280 transitions, 1628 flow [2022-12-11 19:02:22,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 280 transitions, 1604 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-12-11 19:02:22,190 INFO L231 Difference]: Finished difference. Result has 154 places, 128 transitions, 548 flow [2022-12-11 19:02:22,190 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=548, PETRI_PLACES=154, PETRI_TRANSITIONS=128} [2022-12-11 19:02:22,191 INFO L295 CegarLoopForPetriNet]: 136 programPoint places, 18 predicate places. [2022-12-11 19:02:22,191 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 128 transitions, 548 flow [2022-12-11 19:02:22,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.42857142857143) internal successors, (682), 7 states have internal predecessors, (682), 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) [2022-12-11 19:02:22,192 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:02:22,192 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:02:22,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:02:22,192 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:02:22,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:02:22,193 INFO L85 PathProgramCache]: Analyzing trace with hash -509317680, now seen corresponding path program 1 times [2022-12-11 19:02:22,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:02:22,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101867425] [2022-12-11 19:02:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:02:22,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:02:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:02:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:02:22,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:02:22,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101867425] [2022-12-11 19:02:22,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101867425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:02:22,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:02:22,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:02:22,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168726422] [2022-12-11 19:02:22,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:02:22,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:02:22,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:02:22,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:02:22,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:02:22,545 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 129 [2022-12-11 19:02:22,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 128 transitions, 548 flow. Second operand has 7 states, 7 states have (on average 97.71428571428571) internal successors, (684), 7 states have internal predecessors, (684), 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) [2022-12-11 19:02:22,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:02:22,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 129 [2022-12-11 19:02:22,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:02:24,484 INFO L130 PetriNetUnfolder]: 9563/16076 cut-off events. [2022-12-11 19:02:24,484 INFO L131 PetriNetUnfolder]: For 58510/58510 co-relation queries the response was YES. [2022-12-11 19:02:24,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58354 conditions, 16076 events. 9563/16076 cut-off events. For 58510/58510 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 124430 event pairs, 848 based on Foata normal form. 280/16135 useless extension candidates. Maximal degree in co-relation 58271. Up to 4622 conditions per place. [2022-12-11 19:02:24,585 INFO L137 encePairwiseOnDemand]: 113/129 looper letters, 58 selfloop transitions, 32 changer transitions 109/279 dead transitions. [2022-12-11 19:02:24,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 279 transitions, 2004 flow [2022-12-11 19:02:24,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:02:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:02:24,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1399 transitions. [2022-12-11 19:02:24,588 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8342277877161598 [2022-12-11 19:02:24,589 INFO L175 Difference]: Start difference. First operand has 154 places, 128 transitions, 548 flow. Second operand 13 states and 1399 transitions. [2022-12-11 19:02:24,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 279 transitions, 2004 flow [2022-12-11 19:02:24,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 279 transitions, 1926 flow, removed 36 selfloop flow, removed 4 redundant places. [2022-12-11 19:02:24,692 INFO L231 Difference]: Finished difference. Result has 165 places, 147 transitions, 937 flow [2022-12-11 19:02:24,692 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=937, PETRI_PLACES=165, PETRI_TRANSITIONS=147} [2022-12-11 19:02:24,693 INFO L295 CegarLoopForPetriNet]: 136 programPoint places, 29 predicate places. [2022-12-11 19:02:24,693 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 147 transitions, 937 flow [2022-12-11 19:02:24,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.71428571428571) internal successors, (684), 7 states have internal predecessors, (684), 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) [2022-12-11 19:02:24,694 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:02:24,694 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:02:24,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:02:24,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:02:24,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:02:24,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1692431409, now seen corresponding path program 1 times [2022-12-11 19:02:24,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:02:24,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821608311] [2022-12-11 19:02:24,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:02:24,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:02:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:02:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:02:24,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:02:24,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821608311] [2022-12-11 19:02:24,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821608311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:02:24,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:02:24,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:02:24,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342410834] [2022-12-11 19:02:24,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:02:24,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:02:24,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:02:24,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:02:24,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:02:24,857 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 129 [2022-12-11 19:02:24,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 147 transitions, 937 flow. Second operand has 7 states, 7 states have (on average 97.85714285714286) internal successors, (685), 7 states have internal predecessors, (685), 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) [2022-12-11 19:02:24,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:02:24,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 129 [2022-12-11 19:02:24,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:02:27,806 INFO L130 PetriNetUnfolder]: 11015/19703 cut-off events. [2022-12-11 19:02:27,806 INFO L131 PetriNetUnfolder]: For 97336/97399 co-relation queries the response was YES. [2022-12-11 19:02:27,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74616 conditions, 19703 events. 11015/19703 cut-off events. For 97336/97399 co-relation queries the response was YES. Maximal size of possible extension queue 960. Compared 165931 event pairs, 1438 based on Foata normal form. 344/19336 useless extension candidates. Maximal degree in co-relation 74517. Up to 4484 conditions per place. [2022-12-11 19:02:27,947 INFO L137 encePairwiseOnDemand]: 114/129 looper letters, 61 selfloop transitions, 43 changer transitions 99/283 dead transitions. [2022-12-11 19:02:27,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 283 transitions, 2357 flow [2022-12-11 19:02:27,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:02:27,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:02:27,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1390 transitions. [2022-12-11 19:02:27,950 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8288610614192009 [2022-12-11 19:02:27,950 INFO L175 Difference]: Start difference. First operand has 165 places, 147 transitions, 937 flow. Second operand 13 states and 1390 transitions. [2022-12-11 19:02:27,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 283 transitions, 2357 flow [2022-12-11 19:02:28,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 283 transitions, 2217 flow, removed 70 selfloop flow, removed 6 redundant places. [2022-12-11 19:02:28,174 INFO L231 Difference]: Finished difference. Result has 174 places, 156 transitions, 1204 flow [2022-12-11 19:02:28,174 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1204, PETRI_PLACES=174, PETRI_TRANSITIONS=156} [2022-12-11 19:02:28,174 INFO L295 CegarLoopForPetriNet]: 136 programPoint places, 38 predicate places. [2022-12-11 19:02:28,175 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 156 transitions, 1204 flow [2022-12-11 19:02:28,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.85714285714286) internal successors, (685), 7 states have internal predecessors, (685), 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) [2022-12-11 19:02:28,175 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:02:28,175 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:02:28,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:02:28,175 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:02:28,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:02:28,176 INFO L85 PathProgramCache]: Analyzing trace with hash 178800947, now seen corresponding path program 1 times [2022-12-11 19:02:28,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:02:28,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61436092] [2022-12-11 19:02:28,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:02:28,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:02:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:02:28,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:02:28,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:02:28,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61436092] [2022-12-11 19:02:28,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61436092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:02:28,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:02:28,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:02:28,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449677883] [2022-12-11 19:02:28,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:02:28,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:02:28,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:02:28,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:02:28,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:02:28,307 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 129 [2022-12-11 19:02:28,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 156 transitions, 1204 flow. Second operand has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-12-11 19:02:28,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:02:28,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 129 [2022-12-11 19:02:28,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:02:35,257 INFO L130 PetriNetUnfolder]: 32356/54935 cut-off events. [2022-12-11 19:02:35,257 INFO L131 PetriNetUnfolder]: For 167351/201858 co-relation queries the response was YES. [2022-12-11 19:02:35,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146628 conditions, 54935 events. 32356/54935 cut-off events. For 167351/201858 co-relation queries the response was YES. Maximal size of possible extension queue 3215. Compared 516142 event pairs, 1860 based on Foata normal form. 1472/53527 useless extension candidates. Maximal degree in co-relation 146521. Up to 17996 conditions per place. [2022-12-11 19:02:35,920 INFO L137 encePairwiseOnDemand]: 118/129 looper letters, 117 selfloop transitions, 20 changer transitions 0/266 dead transitions. [2022-12-11 19:02:35,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 266 transitions, 2306 flow [2022-12-11 19:02:35,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:02:35,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:02:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1127 transitions. [2022-12-11 19:02:35,922 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8736434108527131 [2022-12-11 19:02:35,922 INFO L175 Difference]: Start difference. First operand has 174 places, 156 transitions, 1204 flow. Second operand 10 states and 1127 transitions. [2022-12-11 19:02:35,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 266 transitions, 2306 flow [2022-12-11 19:02:36,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 266 transitions, 2230 flow, removed 38 selfloop flow, removed 10 redundant places. [2022-12-11 19:02:36,065 INFO L231 Difference]: Finished difference. Result has 170 places, 174 transitions, 1313 flow [2022-12-11 19:02:36,065 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1313, PETRI_PLACES=170, PETRI_TRANSITIONS=174} [2022-12-11 19:02:36,065 INFO L295 CegarLoopForPetriNet]: 136 programPoint places, 34 predicate places. [2022-12-11 19:02:36,066 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 174 transitions, 1313 flow [2022-12-11 19:02:36,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-12-11 19:02:36,066 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:02:36,066 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:02:36,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 19:02:36,066 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:02:36,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:02:36,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1697640695, now seen corresponding path program 1 times [2022-12-11 19:02:36,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:02:36,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338710671] [2022-12-11 19:02:36,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:02:36,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:02:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:02:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:02:36,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:02:36,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338710671] [2022-12-11 19:02:36,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338710671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:02:36,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:02:36,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:02:36,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485512655] [2022-12-11 19:02:36,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:02:36,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:02:36,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:02:36,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:02:36,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:02:36,195 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 129 [2022-12-11 19:02:36,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 174 transitions, 1313 flow. Second operand has 6 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 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) [2022-12-11 19:02:36,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:02:36,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 129 [2022-12-11 19:02:36,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:02:41,040 INFO L130 PetriNetUnfolder]: 11476/34150 cut-off events. [2022-12-11 19:02:41,041 INFO L131 PetriNetUnfolder]: For 104886/113293 co-relation queries the response was YES. [2022-12-11 19:02:41,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102097 conditions, 34150 events. 11476/34150 cut-off events. For 104886/113293 co-relation queries the response was YES. Maximal size of possible extension queue 2454. Compared 472331 event pairs, 4291 based on Foata normal form. 1861/33676 useless extension candidates. Maximal degree in co-relation 101991. Up to 6991 conditions per place. [2022-12-11 19:02:41,420 INFO L137 encePairwiseOnDemand]: 123/129 looper letters, 85 selfloop transitions, 28 changer transitions 0/244 dead transitions. [2022-12-11 19:02:41,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 244 transitions, 2139 flow [2022-12-11 19:02:41,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 19:02:41,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 19:02:41,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1012 transitions. [2022-12-11 19:02:41,422 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8716623600344531 [2022-12-11 19:02:41,422 INFO L175 Difference]: Start difference. First operand has 170 places, 174 transitions, 1313 flow. Second operand 9 states and 1012 transitions. [2022-12-11 19:02:41,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 244 transitions, 2139 flow [2022-12-11 19:02:41,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 244 transitions, 2117 flow, removed 10 selfloop flow, removed 3 redundant places. [2022-12-11 19:02:41,712 INFO L231 Difference]: Finished difference. Result has 182 places, 185 transitions, 1530 flow [2022-12-11 19:02:41,712 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1530, PETRI_PLACES=182, PETRI_TRANSITIONS=185} [2022-12-11 19:02:41,712 INFO L295 CegarLoopForPetriNet]: 136 programPoint places, 46 predicate places. [2022-12-11 19:02:41,713 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 185 transitions, 1530 flow [2022-12-11 19:02:41,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 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) [2022-12-11 19:02:41,713 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:02:41,713 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:02:41,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 19:02:41,713 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:02:41,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:02:41,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1870223025, now seen corresponding path program 1 times [2022-12-11 19:02:41,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:02:41,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908971050] [2022-12-11 19:02:41,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:02:41,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:02:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:02:41,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:02:41,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:02:41,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908971050] [2022-12-11 19:02:41,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908971050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:02:41,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:02:41,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:02:41,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152396611] [2022-12-11 19:02:41,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:02:41,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:02:41,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:02:41,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:02:41,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:02:41,836 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 129 [2022-12-11 19:02:41,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 185 transitions, 1530 flow. Second operand has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 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) [2022-12-11 19:02:41,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:02:41,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 129 [2022-12-11 19:02:41,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:02:53,213 INFO L130 PetriNetUnfolder]: 46003/81330 cut-off events. [2022-12-11 19:02:53,213 INFO L131 PetriNetUnfolder]: For 274144/304630 co-relation queries the response was YES. [2022-12-11 19:02:54,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273313 conditions, 81330 events. 46003/81330 cut-off events. For 274144/304630 co-relation queries the response was YES. Maximal size of possible extension queue 4910. Compared 851527 event pairs, 1754 based on Foata normal form. 2548/81578 useless extension candidates. Maximal degree in co-relation 273202. Up to 17799 conditions per place. [2022-12-11 19:02:54,202 INFO L137 encePairwiseOnDemand]: 118/129 looper letters, 141 selfloop transitions, 38 changer transitions 3/322 dead transitions. [2022-12-11 19:02:54,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 322 transitions, 3004 flow [2022-12-11 19:02:54,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:02:54,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:02:54,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1470 transitions. [2022-12-11 19:02:54,205 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8765652951699463 [2022-12-11 19:02:54,206 INFO L175 Difference]: Start difference. First operand has 182 places, 185 transitions, 1530 flow. Second operand 13 states and 1470 transitions. [2022-12-11 19:02:54,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 322 transitions, 3004 flow [2022-12-11 19:02:57,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 322 transitions, 2971 flow, removed 8 selfloop flow, removed 1 redundant places. [2022-12-11 19:02:57,536 INFO L231 Difference]: Finished difference. Result has 199 places, 205 transitions, 1790 flow [2022-12-11 19:02:57,536 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=1497, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1790, PETRI_PLACES=199, PETRI_TRANSITIONS=205} [2022-12-11 19:02:57,536 INFO L295 CegarLoopForPetriNet]: 136 programPoint places, 63 predicate places. [2022-12-11 19:02:57,537 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 205 transitions, 1790 flow [2022-12-11 19:02:57,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 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) [2022-12-11 19:02:57,537 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:02:57,537 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:02:57,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 19:02:57,537 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:02:57,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:02:57,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1225007088, now seen corresponding path program 1 times [2022-12-11 19:02:57,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:02:57,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806056191] [2022-12-11 19:02:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:02:57,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:02:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:02:57,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:02:57,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:02:57,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806056191] [2022-12-11 19:02:57,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806056191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:02:57,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:02:57,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:02:57,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510175439] [2022-12-11 19:02:57,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:02:57,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:02:57,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:02:57,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:02:57,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:02:57,675 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 129 [2022-12-11 19:02:57,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 205 transitions, 1790 flow. Second operand has 7 states, 7 states have (on average 98.42857142857143) internal successors, (689), 7 states have internal predecessors, (689), 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) [2022-12-11 19:02:57,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:02:57,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 129 [2022-12-11 19:02:57,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:03:03,805 INFO L130 PetriNetUnfolder]: 14094/43471 cut-off events. [2022-12-11 19:03:03,805 INFO L131 PetriNetUnfolder]: For 195505/220644 co-relation queries the response was YES. [2022-12-11 19:03:04,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166754 conditions, 43471 events. 14094/43471 cut-off events. For 195505/220644 co-relation queries the response was YES. Maximal size of possible extension queue 4910. Compared 647576 event pairs, 1363 based on Foata normal form. 784/41357 useless extension candidates. Maximal degree in co-relation 166631. Up to 10905 conditions per place. [2022-12-11 19:03:04,619 INFO L137 encePairwiseOnDemand]: 114/129 looper letters, 106 selfloop transitions, 54 changer transitions 27/305 dead transitions. [2022-12-11 19:03:04,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 305 transitions, 3195 flow [2022-12-11 19:03:04,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 19:03:04,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 19:03:04,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 763 transitions. [2022-12-11 19:03:04,621 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8449612403100775 [2022-12-11 19:03:04,635 INFO L175 Difference]: Start difference. First operand has 199 places, 205 transitions, 1790 flow. Second operand 7 states and 763 transitions. [2022-12-11 19:03:04,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 305 transitions, 3195 flow [2022-12-11 19:03:16,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 305 transitions, 3082 flow, removed 47 selfloop flow, removed 7 redundant places. [2022-12-11 19:03:16,441 INFO L231 Difference]: Finished difference. Result has 204 places, 224 transitions, 2219 flow [2022-12-11 19:03:16,441 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=1683, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2219, PETRI_PLACES=204, PETRI_TRANSITIONS=224} [2022-12-11 19:03:16,442 INFO L295 CegarLoopForPetriNet]: 136 programPoint places, 68 predicate places. [2022-12-11 19:03:16,443 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 224 transitions, 2219 flow [2022-12-11 19:03:16,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 98.42857142857143) internal successors, (689), 7 states have internal predecessors, (689), 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) [2022-12-11 19:03:16,444 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:03:16,444 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:03:16,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 19:03:16,444 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:03:16,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:03:16,444 INFO L85 PathProgramCache]: Analyzing trace with hash -998264472, now seen corresponding path program 2 times [2022-12-11 19:03:16,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:03:16,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937967147] [2022-12-11 19:03:16,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:03:16,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:03:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:03:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:03:16,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:03:16,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937967147] [2022-12-11 19:03:16,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937967147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:03:16,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:03:16,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 19:03:16,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789528323] [2022-12-11 19:03:16,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:03:16,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:03:16,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:03:16,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:03:16,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 19:03:16,699 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 129 [2022-12-11 19:03:16,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 224 transitions, 2219 flow. Second operand has 8 states, 8 states have (on average 104.0) internal successors, (832), 8 states have internal predecessors, (832), 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) [2022-12-11 19:03:16,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:03:16,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 129 [2022-12-11 19:03:16,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand