/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/mix057_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:06:25,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:06:25,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:06:25,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:06:25,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:06:25,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:06:25,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:06:25,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:06:25,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:06:25,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:06:25,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:06:25,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:06:25,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:06:25,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:06:25,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:06:25,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:06:25,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:06:25,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:06:25,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:06:25,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:06:25,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:06:25,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:06:25,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:06:25,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:06:25,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:06:25,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:06:25,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:06:25,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:06:25,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:06:25,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:06:25,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:06:25,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:06:25,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:06:25,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:06:25,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:06:25,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:06:25,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:06:25,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:06:25,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:06:25,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:06:25,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:06:25,255 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 19:06:25,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:06:25,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:06:25,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:06:25,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:06:25,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:06:25,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:06:25,287 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:06:25,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:06:25,287 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:06:25,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:06:25,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:06:25,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:06:25,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:06:25,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:06:25,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:06:25,289 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:06:25,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:06:25,289 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:06:25,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:06:25,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:06:25,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:06:25,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:06:25,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:06:25,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:06:25,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:06:25,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:06:25,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:06:25,290 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:06:25,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:06:25,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:06:25,291 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:06:25,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:06:25,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:06:25,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:06:25,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:06:25,600 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:06:25,601 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:06:25,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-12-11 19:06:26,637 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:06:26,926 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:06:26,926 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-12-11 19:06:26,943 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21ec02998/26ef0fa9005a432e85302658740a4e7f/FLAG93f7921e3 [2022-12-11 19:06:26,957 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21ec02998/26ef0fa9005a432e85302658740a4e7f [2022-12-11 19:06:26,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:06:26,961 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:06:26,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:06:26,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:06:26,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:06:26,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:06:26" (1/1) ... [2022-12-11 19:06:26,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfe5aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:26, skipping insertion in model container [2022-12-11 19:06:26,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:06:26" (1/1) ... [2022-12-11 19:06:26,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:06:27,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:06:27,119 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/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-11 19:06:27,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,244 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,244 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,244 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,244 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:06:27,273 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:06:27,283 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/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-11 19:06:27,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:06:27,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:06:27,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:06:27,370 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:06:27,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27 WrapperNode [2022-12-11 19:06:27,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:06:27,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:06:27,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:06:27,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:06:27,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,452 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-12-11 19:06:27,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:06:27,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:06:27,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:06:27,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:06:27,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,488 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:06:27,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:06:27,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:06:27,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:06:27,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (1/1) ... [2022-12-11 19:06:27,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:06:27,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:06:27,540 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 19:06:27,566 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 19:06:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:06:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:06:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:06:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:06:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:06:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 19:06:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 19:06:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 19:06:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 19:06:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 19:06:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 19:06:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-11 19:06:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-11 19:06:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:06:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:06:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:06:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:06:27,588 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 19:06:27,700 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:06:27,702 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:06:27,987 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:06:28,105 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:06:28,105 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:06:28,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:06:28 BoogieIcfgContainer [2022-12-11 19:06:28,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:06:28,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:06:28,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:06:28,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:06:28,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:06:26" (1/3) ... [2022-12-11 19:06:28,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c265aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:06:28, skipping insertion in model container [2022-12-11 19:06:28,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:06:27" (2/3) ... [2022-12-11 19:06:28,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c265aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:06:28, skipping insertion in model container [2022-12-11 19:06:28,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:06:28" (3/3) ... [2022-12-11 19:06:28,115 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-12-11 19:06:28,128 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:06:28,128 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-11 19:06:28,128 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:06:28,230 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 19:06:28,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 127 transitions, 274 flow [2022-12-11 19:06:28,301 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-12-11 19:06:28,302 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:06:28,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 123 events. 2/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-11 19:06:28,306 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 127 transitions, 274 flow [2022-12-11 19:06:28,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 123 transitions, 258 flow [2022-12-11 19:06:28,318 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:06:28,324 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;@16d8f94c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:06:28,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-11 19:06:28,334 INFO L130 PetriNetUnfolder]: 0/45 cut-off events. [2022-12-11 19:06:28,334 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:06:28,334 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:06:28,335 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] [2022-12-11 19:06:28,335 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 19:06:28,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:06:28,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1880240484, now seen corresponding path program 1 times [2022-12-11 19:06:28,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:06:28,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005103050] [2022-12-11 19:06:28,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:06:28,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:06:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:06:28,809 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 19:06:28,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:06:28,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005103050] [2022-12-11 19:06:28,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005103050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:06:28,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:06:28,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-11 19:06:28,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818477950] [2022-12-11 19:06:28,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:06:28,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 19:06:28,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:06:28,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 19:06:28,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 19:06:28,845 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 127 [2022-12-11 19:06:28,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 123 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 19:06:28,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:06:28,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 127 [2022-12-11 19:06:28,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:06:29,067 INFO L130 PetriNetUnfolder]: 162/570 cut-off events. [2022-12-11 19:06:29,067 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-11 19:06:29,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 570 events. 162/570 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3113 event pairs, 94 based on Foata normal form. 46/585 useless extension candidates. Maximal degree in co-relation 824. Up to 191 conditions per place. [2022-12-11 19:06:29,080 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 18 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2022-12-11 19:06:29,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 127 transitions, 315 flow [2022-12-11 19:06:29,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 19:06:29,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 19:06:29,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2022-12-11 19:06:29,098 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9396325459317585 [2022-12-11 19:06:29,099 INFO L175 Difference]: Start difference. First operand has 134 places, 123 transitions, 258 flow. Second operand 3 states and 358 transitions. [2022-12-11 19:06:29,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 127 transitions, 315 flow [2022-12-11 19:06:29,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 127 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-11 19:06:29,110 INFO L231 Difference]: Finished difference. Result has 130 places, 119 transitions, 250 flow [2022-12-11 19:06:29,112 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=130, PETRI_TRANSITIONS=119} [2022-12-11 19:06:29,117 INFO L295 CegarLoopForPetriNet]: 134 programPoint places, -4 predicate places. [2022-12-11 19:06:29,118 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 119 transitions, 250 flow [2022-12-11 19:06:29,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 19:06:29,119 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:06:29,119 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] [2022-12-11 19:06:29,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:06:29,120 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 19:06:29,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:06:29,122 INFO L85 PathProgramCache]: Analyzing trace with hash -433429721, now seen corresponding path program 1 times [2022-12-11 19:06:29,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:06:29,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990511908] [2022-12-11 19:06:29,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:06:29,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:06:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:06:29,507 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 19:06:29,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:06:29,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990511908] [2022-12-11 19:06:29,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990511908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:06:29,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:06:29,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:06:29,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505759835] [2022-12-11 19:06:29,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:06:29,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:06:29,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:06:29,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:06:29,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:06:29,514 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-12-11 19:06:29,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 119 transitions, 250 flow. Second operand has 7 states, 7 states have (on average 97.14285714285714) internal successors, (680), 7 states have internal predecessors, (680), 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 19:06:29,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:06:29,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-12-11 19:06:29,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:06:33,691 INFO L130 PetriNetUnfolder]: 14997/30540 cut-off events. [2022-12-11 19:06:33,691 INFO L131 PetriNetUnfolder]: For 1203/1203 co-relation queries the response was YES. [2022-12-11 19:06:33,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52429 conditions, 30540 events. 14997/30540 cut-off events. For 1203/1203 co-relation queries the response was YES. Maximal size of possible extension queue 1324. Compared 307298 event pairs, 1161 based on Foata normal form. 0/29954 useless extension candidates. Maximal degree in co-relation 52375. Up to 6036 conditions per place. [2022-12-11 19:06:33,893 INFO L137 encePairwiseOnDemand]: 115/127 looper letters, 49 selfloop transitions, 10 changer transitions 126/265 dead transitions. [2022-12-11 19:06:33,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 265 transitions, 922 flow [2022-12-11 19:06:33,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:06:33,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:06:33,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1412 transitions. [2022-12-11 19:06:33,898 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8552392489400363 [2022-12-11 19:06:33,898 INFO L175 Difference]: Start difference. First operand has 130 places, 119 transitions, 250 flow. Second operand 13 states and 1412 transitions. [2022-12-11 19:06:33,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 265 transitions, 922 flow [2022-12-11 19:06:33,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 265 transitions, 896 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-11 19:06:33,908 INFO L231 Difference]: Finished difference. Result has 152 places, 116 transitions, 346 flow [2022-12-11 19:06:33,908 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=346, PETRI_PLACES=152, PETRI_TRANSITIONS=116} [2022-12-11 19:06:33,909 INFO L295 CegarLoopForPetriNet]: 134 programPoint places, 18 predicate places. [2022-12-11 19:06:33,909 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 116 transitions, 346 flow [2022-12-11 19:06:33,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.14285714285714) internal successors, (680), 7 states have internal predecessors, (680), 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 19:06:33,910 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:06:33,910 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] [2022-12-11 19:06:33,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:06:33,910 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 19:06:33,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:06:33,911 INFO L85 PathProgramCache]: Analyzing trace with hash 827200392, now seen corresponding path program 1 times [2022-12-11 19:06:33,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:06:33,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304518796] [2022-12-11 19:06:33,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:06:33,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:06:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:06:34,332 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 19:06:34,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:06:34,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304518796] [2022-12-11 19:06:34,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304518796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:06:34,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:06:34,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:06:34,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325194393] [2022-12-11 19:06:34,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:06:34,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:06:34,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:06:34,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:06:34,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:06:34,336 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-12-11 19:06:34,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 116 transitions, 346 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 19:06:34,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:06:34,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-12-11 19:06:34,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:06:37,154 INFO L130 PetriNetUnfolder]: 10976/19297 cut-off events. [2022-12-11 19:06:37,155 INFO L131 PetriNetUnfolder]: For 32355/32355 co-relation queries the response was YES. [2022-12-11 19:06:37,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56826 conditions, 19297 events. 10976/19297 cut-off events. For 32355/32355 co-relation queries the response was YES. Maximal size of possible extension queue 1069. Compared 160714 event pairs, 984 based on Foata normal form. 376/19382 useless extension candidates. Maximal degree in co-relation 56760. Up to 4789 conditions per place. [2022-12-11 19:06:37,290 INFO L137 encePairwiseOnDemand]: 114/127 looper letters, 53 selfloop transitions, 18 changer transitions 124/275 dead transitions. [2022-12-11 19:06:37,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 275 transitions, 1600 flow [2022-12-11 19:06:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:06:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:06:37,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1403 transitions. [2022-12-11 19:06:37,295 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8497880072683223 [2022-12-11 19:06:37,295 INFO L175 Difference]: Start difference. First operand has 152 places, 116 transitions, 346 flow. Second operand 13 states and 1403 transitions. [2022-12-11 19:06:37,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 275 transitions, 1600 flow [2022-12-11 19:06:37,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 275 transitions, 1576 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-12-11 19:06:37,451 INFO L231 Difference]: Finished difference. Result has 152 places, 129 transitions, 572 flow [2022-12-11 19:06:37,456 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=572, PETRI_PLACES=152, PETRI_TRANSITIONS=129} [2022-12-11 19:06:37,457 INFO L295 CegarLoopForPetriNet]: 134 programPoint places, 18 predicate places. [2022-12-11 19:06:37,458 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 129 transitions, 572 flow [2022-12-11 19:06:37,458 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 19:06:37,459 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:06:37,459 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] [2022-12-11 19:06:37,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:06:37,459 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 19:06:37,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:06:37,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1856970989, now seen corresponding path program 1 times [2022-12-11 19:06:37,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:06:37,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547082260] [2022-12-11 19:06:37,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:06:37,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:06:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:06:37,692 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 19:06:37,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:06:37,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547082260] [2022-12-11 19:06:37,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547082260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:06:37,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:06:37,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:06:37,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182265155] [2022-12-11 19:06:37,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:06:37,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:06:37,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:06:37,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:06:37,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:06:37,700 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-12-11 19:06:37,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 129 transitions, 572 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 19:06:37,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:06:37,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-12-11 19:06:37,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:06:40,304 INFO L130 PetriNetUnfolder]: 9305/16686 cut-off events. [2022-12-11 19:06:40,305 INFO L131 PetriNetUnfolder]: For 58172/58412 co-relation queries the response was YES. [2022-12-11 19:06:40,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57677 conditions, 16686 events. 9305/16686 cut-off events. For 58172/58412 co-relation queries the response was YES. Maximal size of possible extension queue 934. Compared 139184 event pairs, 1112 based on Foata normal form. 367/16630 useless extension candidates. Maximal degree in co-relation 57598. Up to 4359 conditions per place. [2022-12-11 19:06:40,432 INFO L137 encePairwiseOnDemand]: 114/127 looper letters, 58 selfloop transitions, 28 changer transitions 109/275 dead transitions. [2022-12-11 19:06:40,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 275 transitions, 1974 flow [2022-12-11 19:06:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:06:40,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:06:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1395 transitions. [2022-12-11 19:06:40,436 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8449424591156874 [2022-12-11 19:06:40,436 INFO L175 Difference]: Start difference. First operand has 152 places, 129 transitions, 572 flow. Second operand 13 states and 1395 transitions. [2022-12-11 19:06:40,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 275 transitions, 1974 flow [2022-12-11 19:06:40,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 275 transitions, 1902 flow, removed 36 selfloop flow, removed 3 redundant places. [2022-12-11 19:06:40,583 INFO L231 Difference]: Finished difference. Result has 164 places, 144 transitions, 906 flow [2022-12-11 19:06:40,584 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=906, PETRI_PLACES=164, PETRI_TRANSITIONS=144} [2022-12-11 19:06:40,584 INFO L295 CegarLoopForPetriNet]: 134 programPoint places, 30 predicate places. [2022-12-11 19:06:40,585 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 144 transitions, 906 flow [2022-12-11 19:06:40,585 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 19:06:40,585 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:06:40,585 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] [2022-12-11 19:06:40,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:06:40,586 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 19:06:40,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:06:40,587 INFO L85 PathProgramCache]: Analyzing trace with hash -904655260, now seen corresponding path program 1 times [2022-12-11 19:06:40,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:06:40,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435769932] [2022-12-11 19:06:40,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:06:40,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:06:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:06:40,817 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 19:06:40,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:06:40,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435769932] [2022-12-11 19:06:40,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435769932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:06:40,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:06:40,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:06:40,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165356059] [2022-12-11 19:06:40,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:06:40,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:06:40,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:06:40,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:06:40,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:06:40,821 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-12-11 19:06:40,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 144 transitions, 906 flow. Second operand has 7 states, 7 states have (on average 97.57142857142857) internal successors, (683), 7 states have internal predecessors, (683), 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 19:06:40,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:06:40,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-12-11 19:06:40,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:06:43,633 INFO L130 PetriNetUnfolder]: 10753/19496 cut-off events. [2022-12-11 19:06:43,633 INFO L131 PetriNetUnfolder]: For 94942/95034 co-relation queries the response was YES. [2022-12-11 19:06:43,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72115 conditions, 19496 events. 10753/19496 cut-off events. For 94942/95034 co-relation queries the response was YES. Maximal size of possible extension queue 1041. Compared 167251 event pairs, 1352 based on Foata normal form. 350/19228 useless extension candidates. Maximal degree in co-relation 72023. Up to 4640 conditions per place. [2022-12-11 19:06:43,795 INFO L137 encePairwiseOnDemand]: 115/127 looper letters, 61 selfloop transitions, 37 changer transitions 99/277 dead transitions. [2022-12-11 19:06:43,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 277 transitions, 2260 flow [2022-12-11 19:06:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:06:43,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:06:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1386 transitions. [2022-12-11 19:06:43,799 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8394912174439734 [2022-12-11 19:06:43,799 INFO L175 Difference]: Start difference. First operand has 164 places, 144 transitions, 906 flow. Second operand 13 states and 1386 transitions. [2022-12-11 19:06:43,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 277 transitions, 2260 flow [2022-12-11 19:06:44,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 277 transitions, 2138 flow, removed 61 selfloop flow, removed 6 redundant places. [2022-12-11 19:06:44,194 INFO L231 Difference]: Finished difference. Result has 173 places, 151 transitions, 1134 flow [2022-12-11 19:06:44,195 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1134, PETRI_PLACES=173, PETRI_TRANSITIONS=151} [2022-12-11 19:06:44,195 INFO L295 CegarLoopForPetriNet]: 134 programPoint places, 39 predicate places. [2022-12-11 19:06:44,196 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 151 transitions, 1134 flow [2022-12-11 19:06:44,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.57142857142857) internal successors, (683), 7 states have internal predecessors, (683), 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 19:06:44,196 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:06:44,196 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] [2022-12-11 19:06:44,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:06:44,197 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 19:06:44,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:06:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1880139033, now seen corresponding path program 1 times [2022-12-11 19:06:44,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:06:44,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150102148] [2022-12-11 19:06:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:06:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:06:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:06:44,418 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 19:06:44,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:06:44,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150102148] [2022-12-11 19:06:44,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150102148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:06:44,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:06:44,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:06:44,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536772688] [2022-12-11 19:06:44,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:06:44,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:06:44,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:06:44,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:06:44,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:06:44,421 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-12-11 19:06:44,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 151 transitions, 1134 flow. Second operand has 7 states, 7 states have (on average 97.57142857142857) internal successors, (683), 7 states have internal predecessors, (683), 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 19:06:44,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:06:44,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-12-11 19:06:44,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:06:48,276 INFO L130 PetriNetUnfolder]: 13137/24403 cut-off events. [2022-12-11 19:06:48,277 INFO L131 PetriNetUnfolder]: For 173751/173843 co-relation queries the response was YES. [2022-12-11 19:06:48,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96181 conditions, 24403 events. 13137/24403 cut-off events. For 173751/173843 co-relation queries the response was YES. Maximal size of possible extension queue 1354. Compared 223809 event pairs, 1868 based on Foata normal form. 366/24013 useless extension candidates. Maximal degree in co-relation 96081. Up to 6432 conditions per place. [2022-12-11 19:06:48,463 INFO L137 encePairwiseOnDemand]: 115/127 looper letters, 64 selfloop transitions, 38 changer transitions 120/302 dead transitions. [2022-12-11 19:06:48,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 302 transitions, 3056 flow [2022-12-11 19:06:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:06:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:06:48,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1388 transitions. [2022-12-11 19:06:48,470 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8407026044821321 [2022-12-11 19:06:48,470 INFO L175 Difference]: Start difference. First operand has 173 places, 151 transitions, 1134 flow. Second operand 13 states and 1388 transitions. [2022-12-11 19:06:48,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 302 transitions, 3056 flow [2022-12-11 19:06:48,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 302 transitions, 2980 flow, removed 38 selfloop flow, removed 10 redundant places. [2022-12-11 19:06:48,726 INFO L231 Difference]: Finished difference. Result has 178 places, 154 transitions, 1370 flow [2022-12-11 19:06:48,727 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=1100, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1370, PETRI_PLACES=178, PETRI_TRANSITIONS=154} [2022-12-11 19:06:48,727 INFO L295 CegarLoopForPetriNet]: 134 programPoint places, 44 predicate places. [2022-12-11 19:06:48,728 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 154 transitions, 1370 flow [2022-12-11 19:06:48,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.57142857142857) internal successors, (683), 7 states have internal predecessors, (683), 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 19:06:48,728 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:06:48,728 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 19:06:48,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 19:06:48,729 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 19:06:48,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:06:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1040307116, now seen corresponding path program 1 times [2022-12-11 19:06:48,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:06:48,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259448865] [2022-12-11 19:06:48,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:06:48,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:06:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:06:48,912 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 19:06:48,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:06:48,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259448865] [2022-12-11 19:06:48,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259448865] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:06:48,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:06:48,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:06:48,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726655639] [2022-12-11 19:06:48,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:06:48,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:06:48,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:06:48,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:06:48,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:06:48,919 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 127 [2022-12-11 19:06:48,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 154 transitions, 1370 flow. Second operand has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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 19:06:48,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:06:48,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 127 [2022-12-11 19:06:48,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:06:59,502 INFO L130 PetriNetUnfolder]: 44193/74779 cut-off events. [2022-12-11 19:06:59,503 INFO L131 PetriNetUnfolder]: For 327115/357228 co-relation queries the response was YES. [2022-12-11 19:07:00,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195650 conditions, 74779 events. 44193/74779 cut-off events. For 327115/357228 co-relation queries the response was YES. Maximal size of possible extension queue 4362. Compared 725671 event pairs, 2375 based on Foata normal form. 2505/74246 useless extension candidates. Maximal degree in co-relation 195549. Up to 25568 conditions per place. [2022-12-11 19:07:00,322 INFO L137 encePairwiseOnDemand]: 116/127 looper letters, 125 selfloop transitions, 20 changer transitions 0/271 dead transitions. [2022-12-11 19:07:00,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 271 transitions, 2768 flow [2022-12-11 19:07:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:07:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:07:00,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1107 transitions. [2022-12-11 19:07:00,325 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8716535433070867 [2022-12-11 19:07:00,325 INFO L175 Difference]: Start difference. First operand has 178 places, 154 transitions, 1370 flow. Second operand 10 states and 1107 transitions. [2022-12-11 19:07:00,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 271 transitions, 2768 flow [2022-12-11 19:07:00,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 271 transitions, 2754 flow, removed 7 selfloop flow, removed 5 redundant places. [2022-12-11 19:07:00,577 INFO L231 Difference]: Finished difference. Result has 179 places, 172 transitions, 1499 flow [2022-12-11 19:07:00,578 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=1356, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1499, PETRI_PLACES=179, PETRI_TRANSITIONS=172} [2022-12-11 19:07:00,578 INFO L295 CegarLoopForPetriNet]: 134 programPoint places, 45 predicate places. [2022-12-11 19:07:00,578 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 172 transitions, 1499 flow [2022-12-11 19:07:00,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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 19:07:00,579 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:00,579 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] [2022-12-11 19:07:00,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 19:07:00,579 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 19:07:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:00,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1196846218, now seen corresponding path program 1 times [2022-12-11 19:07:00,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:00,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629252486] [2022-12-11 19:07:00,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:00,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:00,949 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 19:07:00,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:00,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629252486] [2022-12-11 19:07:00,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629252486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:00,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:00,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:07:00,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090616080] [2022-12-11 19:07:00,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:00,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:07:00,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:00,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:07:00,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:07:00,952 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 127 [2022-12-11 19:07:00,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 172 transitions, 1499 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 19:07:00,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:00,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 127 [2022-12-11 19:07:00,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:07,868 INFO L130 PetriNetUnfolder]: 16942/43922 cut-off events. [2022-12-11 19:07:07,868 INFO L131 PetriNetUnfolder]: For 231393/239849 co-relation queries the response was YES. [2022-12-11 19:07:08,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152081 conditions, 43922 events. 16942/43922 cut-off events. For 231393/239849 co-relation queries the response was YES. Maximal size of possible extension queue 3174. Compared 587359 event pairs, 4372 based on Foata normal form. 980/41732 useless extension candidates. Maximal degree in co-relation 151973. Up to 9177 conditions per place. [2022-12-11 19:07:08,484 INFO L137 encePairwiseOnDemand]: 115/127 looper letters, 141 selfloop transitions, 61 changer transitions 27/327 dead transitions. [2022-12-11 19:07:08,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 327 transitions, 4063 flow [2022-12-11 19:07:08,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:07:08,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:07:08,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1378 transitions. [2022-12-11 19:07:08,488 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8346456692913385 [2022-12-11 19:07:08,488 INFO L175 Difference]: Start difference. First operand has 179 places, 172 transitions, 1499 flow. Second operand 13 states and 1378 transitions. [2022-12-11 19:07:08,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 327 transitions, 4063 flow [2022-12-11 19:07:09,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 327 transitions, 4061 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-11 19:07:09,282 INFO L231 Difference]: Finished difference. Result has 202 places, 207 transitions, 2509 flow [2022-12-11 19:07:09,283 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=1497, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2509, PETRI_PLACES=202, PETRI_TRANSITIONS=207} [2022-12-11 19:07:09,284 INFO L295 CegarLoopForPetriNet]: 134 programPoint places, 68 predicate places. [2022-12-11 19:07:09,284 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 207 transitions, 2509 flow [2022-12-11 19:07:09,284 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 19:07:09,284 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:07:09,284 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] [2022-12-11 19:07:09,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 19:07:09,285 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 19:07:09,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:07:09,285 INFO L85 PathProgramCache]: Analyzing trace with hash 590687186, now seen corresponding path program 1 times [2022-12-11 19:07:09,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:07:09,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068981237] [2022-12-11 19:07:09,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:07:09,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:07:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:07:09,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:07:09,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:07:09,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068981237] [2022-12-11 19:07:09,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068981237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:07:09,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:07:09,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:07:09,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877877553] [2022-12-11 19:07:09,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:07:09,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:07:09,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:07:09,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:07:09,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:07:09,522 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 127 [2022-12-11 19:07:09,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 207 transitions, 2509 flow. Second operand has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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 19:07:09,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:07:09,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 127 [2022-12-11 19:07:09,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:07:29,584 INFO L130 PetriNetUnfolder]: 65127/114349 cut-off events. [2022-12-11 19:07:29,584 INFO L131 PetriNetUnfolder]: For 736467/780749 co-relation queries the response was YES. [2022-12-11 19:07:31,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397652 conditions, 114349 events. 65127/114349 cut-off events. For 736467/780749 co-relation queries the response was YES. Maximal size of possible extension queue 6992. Compared 1237436 event pairs, 2375 based on Foata normal form. 6111/118226 useless extension candidates. Maximal degree in co-relation 397534. Up to 26825 conditions per place.