/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:39:51,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:39:51,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:39:51,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:39:51,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:39:51,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:39:51,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:39:51,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:39:51,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:39:51,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:39:51,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:39:51,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:39:51,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:39:51,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:39:51,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:39:51,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:39:51,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:39:51,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:39:51,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:39:51,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:39:51,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:39:51,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:39:51,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:39:51,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:39:51,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:39:51,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:39:51,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:39:51,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:39:51,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:39:51,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:39:51,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:39:51,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:39:51,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:39:51,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:39:51,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:39:51,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:39:51,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:39:51,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:39:51,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:39:51,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:39:51,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:39:51,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:39:51,280 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:39:51,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:39:51,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:39:51,282 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:39:51,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:39:51,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:39:51,283 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:39:51,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:39:51,283 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:39:51,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:39:51,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:39:51,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:39:51,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:39:51,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:39:51,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:39:51,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:39:51,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:39:51,285 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:39:51,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:39:51,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:39:51,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:39:51,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:39:51,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:39:51,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:39:51,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:39:51,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:39:51,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:39:51,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:39:51,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:39:51,286 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:39:51,286 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:39:51,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:39:51,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:39:51,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:39:51,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:39:51,579 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:39:51,579 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:39:51,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:39:52,527 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:39:52,784 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:39:52,784 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:39:52,820 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/369255ad5/d835a3a7a15d4dbaa5ce7d50214f88ef/FLAGa3b570b4f [2022-12-06 16:39:52,836 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/369255ad5/d835a3a7a15d4dbaa5ce7d50214f88ef [2022-12-06 16:39:52,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:39:52,839 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:39:52,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:39:52,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:39:52,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:39:52,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:39:52" (1/1) ... [2022-12-06 16:39:52,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a3860b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:52, skipping insertion in model container [2022-12-06 16:39:52,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:39:52" (1/1) ... [2022-12-06 16:39:52,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:39:52,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:39:53,039 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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:39:53,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:39:53,167 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:39:53,176 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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:39:53,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:53,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:53,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:39:53,232 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:39:53,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53 WrapperNode [2022-12-06 16:39:53,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:39:53,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:39:53,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:39:53,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:39:53,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,266 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2022-12-06 16:39:53,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:39:53,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:39:53,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:39:53,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:39:53,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,286 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:39:53,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:39:53,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:39:53,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:39:53,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (1/1) ... [2022-12-06 16:39:53,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:39:53,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:39:53,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 16:39:53,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 16:39:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:39:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:39:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:39:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:39:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:39:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:39:53,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:39:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:39:53,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:39:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 16:39:53,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 16:39:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-06 16:39:53,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-06 16:39:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:39:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:39:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:39:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:39:53,405 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:39:53,533 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:39:53,534 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:39:53,760 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:39:53,765 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:39:53,765 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:39:53,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:39:53 BoogieIcfgContainer [2022-12-06 16:39:53,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:39:53,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:39:53,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:39:53,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:39:53,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:39:52" (1/3) ... [2022-12-06 16:39:53,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cb2fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:39:53, skipping insertion in model container [2022-12-06 16:39:53,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:53" (2/3) ... [2022-12-06 16:39:53,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cb2fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:39:53, skipping insertion in model container [2022-12-06 16:39:53,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:39:53" (3/3) ... [2022-12-06 16:39:53,772 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:39:53,785 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:39:53,785 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:39:53,785 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:39:53,875 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:39:53,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 100 transitions, 220 flow [2022-12-06 16:39:53,960 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-12-06 16:39:53,960 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:39:53,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-06 16:39:53,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 100 transitions, 220 flow [2022-12-06 16:39:53,968 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 82 transitions, 176 flow [2022-12-06 16:39:53,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:39:53,985 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;@70b8d8e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:39:53,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 16:39:54,013 INFO L130 PetriNetUnfolder]: 1/81 cut-off events. [2022-12-06 16:39:54,013 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:39:54,014 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:54,014 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:54,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:39:54,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:54,019 INFO L85 PathProgramCache]: Analyzing trace with hash -770612748, now seen corresponding path program 1 times [2022-12-06 16:39:54,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:54,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015539050] [2022-12-06 16:39:54,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:54,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:54,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:54,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:54,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015539050] [2022-12-06 16:39:54,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015539050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:54,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:54,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:39:54,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574374460] [2022-12-06 16:39:54,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:54,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:39:54,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:54,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:39:54,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:39:54,628 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 100 [2022-12-06 16:39:54,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 176 flow. Second operand has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:54,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:54,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 100 [2022-12-06 16:39:54,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:54,843 INFO L130 PetriNetUnfolder]: 97/320 cut-off events. [2022-12-06 16:39:54,844 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-06 16:39:54,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 320 events. 97/320 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1262 event pairs, 17 based on Foata normal form. 11/314 useless extension candidates. Maximal degree in co-relation 513. Up to 100 conditions per place. [2022-12-06 16:39:54,849 INFO L137 encePairwiseOnDemand]: 93/100 looper letters, 21 selfloop transitions, 2 changer transitions 25/111 dead transitions. [2022-12-06 16:39:54,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 111 transitions, 339 flow [2022-12-06 16:39:54,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:39:54,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:39:54,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 754 transitions. [2022-12-06 16:39:54,867 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8377777777777777 [2022-12-06 16:39:54,871 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2022-12-06 16:39:54,871 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 111 transitions, 339 flow [2022-12-06 16:39:54,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:54,871 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:54,872 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:54,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:39:54,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:39:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:54,873 INFO L85 PathProgramCache]: Analyzing trace with hash 859219637, now seen corresponding path program 1 times [2022-12-06 16:39:54,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:54,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426958715] [2022-12-06 16:39:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:54,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:55,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:55,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426958715] [2022-12-06 16:39:55,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426958715] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:55,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:55,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:39:55,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277410009] [2022-12-06 16:39:55,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:55,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:39:55,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:55,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:39:55,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:39:55,080 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 100 [2022-12-06 16:39:55,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 111 transitions, 339 flow. Second operand has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:55,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:55,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 100 [2022-12-06 16:39:55,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:55,423 INFO L130 PetriNetUnfolder]: 382/950 cut-off events. [2022-12-06 16:39:55,423 INFO L131 PetriNetUnfolder]: For 125/500 co-relation queries the response was YES. [2022-12-06 16:39:55,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2158 conditions, 950 events. 382/950 cut-off events. For 125/500 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5744 event pairs, 2 based on Foata normal form. 21/945 useless extension candidates. Maximal degree in co-relation 2113. Up to 307 conditions per place. [2022-12-06 16:39:55,429 INFO L137 encePairwiseOnDemand]: 86/100 looper letters, 32 selfloop transitions, 14 changer transitions 130/237 dead transitions. [2022-12-06 16:39:55,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 237 transitions, 1190 flow [2022-12-06 16:39:55,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:39:55,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:39:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1397 transitions. [2022-12-06 16:39:55,432 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.821764705882353 [2022-12-06 16:39:55,432 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 24 predicate places. [2022-12-06 16:39:55,432 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 237 transitions, 1190 flow [2022-12-06 16:39:55,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:55,433 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:55,433 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:55,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:39:55,433 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:39:55,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:55,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1918851789, now seen corresponding path program 1 times [2022-12-06 16:39:55,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:55,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844759900] [2022-12-06 16:39:55,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:55,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:55,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:55,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844759900] [2022-12-06 16:39:55,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844759900] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:55,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:55,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:39:55,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103027008] [2022-12-06 16:39:55,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:55,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:39:55,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:55,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:39:55,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:39:55,595 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 100 [2022-12-06 16:39:55,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 237 transitions, 1190 flow. Second operand has 7 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:55,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:55,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 100 [2022-12-06 16:39:55,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:55,809 INFO L130 PetriNetUnfolder]: 506/1300 cut-off events. [2022-12-06 16:39:55,810 INFO L131 PetriNetUnfolder]: For 502/774 co-relation queries the response was YES. [2022-12-06 16:39:55,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3628 conditions, 1300 events. 506/1300 cut-off events. For 502/774 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8875 event pairs, 13 based on Foata normal form. 13/1293 useless extension candidates. Maximal degree in co-relation 3576. Up to 372 conditions per place. [2022-12-06 16:39:55,815 INFO L137 encePairwiseOnDemand]: 92/100 looper letters, 42 selfloop transitions, 9 changer transitions 289/404 dead transitions. [2022-12-06 16:39:55,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 404 transitions, 2869 flow [2022-12-06 16:39:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:39:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:39:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2022-12-06 16:39:55,817 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.828 [2022-12-06 16:39:55,817 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 33 predicate places. [2022-12-06 16:39:55,818 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 404 transitions, 2869 flow [2022-12-06 16:39:55,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:55,818 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:55,818 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:55,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:39:55,818 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:39:55,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:55,819 INFO L85 PathProgramCache]: Analyzing trace with hash -272394734, now seen corresponding path program 1 times [2022-12-06 16:39:55,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:55,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161117026] [2022-12-06 16:39:55,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:55,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:55,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:55,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161117026] [2022-12-06 16:39:55,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161117026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:55,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:55,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:39:55,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91231408] [2022-12-06 16:39:55,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:55,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:39:55,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:55,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:39:55,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:39:55,980 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 100 [2022-12-06 16:39:55,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 404 transitions, 2869 flow. Second operand has 8 states, 8 states have (on average 78.125) internal successors, (625), 8 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:55,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:55,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 100 [2022-12-06 16:39:55,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:56,276 INFO L130 PetriNetUnfolder]: 540/1379 cut-off events. [2022-12-06 16:39:56,276 INFO L131 PetriNetUnfolder]: For 791/2113 co-relation queries the response was YES. [2022-12-06 16:39:56,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4964 conditions, 1379 events. 540/1379 cut-off events. For 791/2113 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 9766 event pairs, 12 based on Foata normal form. 50/1407 useless extension candidates. Maximal degree in co-relation 4904. Up to 460 conditions per place. [2022-12-06 16:39:56,281 INFO L137 encePairwiseOnDemand]: 92/100 looper letters, 22 selfloop transitions, 5 changer transitions 377/465 dead transitions. [2022-12-06 16:39:56,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 465 transitions, 4141 flow [2022-12-06 16:39:56,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:39:56,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:39:56,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1064 transitions. [2022-12-06 16:39:56,283 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8184615384615385 [2022-12-06 16:39:56,284 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 45 predicate places. [2022-12-06 16:39:56,284 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 465 transitions, 4141 flow [2022-12-06 16:39:56,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 78.125) internal successors, (625), 8 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:56,284 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:56,284 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:56,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:39:56,285 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:39:56,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:56,285 INFO L85 PathProgramCache]: Analyzing trace with hash -884081643, now seen corresponding path program 1 times [2022-12-06 16:39:56,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:56,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394415245] [2022-12-06 16:39:56,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:56,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:56,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:56,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394415245] [2022-12-06 16:39:56,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394415245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:56,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:56,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:39:56,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525922064] [2022-12-06 16:39:56,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:56,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:39:56,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:56,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:39:56,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:39:56,408 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 100 [2022-12-06 16:39:56,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 465 transitions, 4141 flow. Second operand has 8 states, 8 states have (on average 78.125) internal successors, (625), 8 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:56,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:56,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 100 [2022-12-06 16:39:56,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:56,990 INFO L130 PetriNetUnfolder]: 1863/3956 cut-off events. [2022-12-06 16:39:56,990 INFO L131 PetriNetUnfolder]: For 3881/19524 co-relation queries the response was YES. [2022-12-06 16:39:57,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16356 conditions, 3956 events. 1863/3956 cut-off events. For 3881/19524 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 33063 event pairs, 14 based on Foata normal form. 23/3941 useless extension candidates. Maximal degree in co-relation 16288. Up to 1259 conditions per place. [2022-12-06 16:39:57,012 INFO L137 encePairwiseOnDemand]: 90/100 looper letters, 23 selfloop transitions, 8 changer transitions 1013/1105 dead transitions. [2022-12-06 16:39:57,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 1105 transitions, 12615 flow [2022-12-06 16:39:57,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:39:57,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:39:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1143 transitions. [2022-12-06 16:39:57,015 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8164285714285714 [2022-12-06 16:39:57,017 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 58 predicate places. [2022-12-06 16:39:57,017 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 1105 transitions, 12615 flow [2022-12-06 16:39:57,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 78.125) internal successors, (625), 8 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:57,018 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:57,018 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:57,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:39:57,018 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:39:57,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:57,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1353008466, now seen corresponding path program 1 times [2022-12-06 16:39:57,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:57,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51196450] [2022-12-06 16:39:57,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:57,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:57,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:57,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:57,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51196450] [2022-12-06 16:39:57,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51196450] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:57,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:57,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:39:57,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300805704] [2022-12-06 16:39:57,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:57,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:39:57,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:57,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:39:57,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:39:57,172 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 100 [2022-12-06 16:39:57,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 1105 transitions, 12615 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:57,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:57,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 100 [2022-12-06 16:39:57,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:59,138 INFO L130 PetriNetUnfolder]: 6163/13536 cut-off events. [2022-12-06 16:39:59,138 INFO L131 PetriNetUnfolder]: For 9324/12429 co-relation queries the response was YES. [2022-12-06 16:39:59,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43220 conditions, 13536 events. 6163/13536 cut-off events. For 9324/12429 co-relation queries the response was YES. Maximal size of possible extension queue 911. Compared 139509 event pairs, 247 based on Foata normal form. 113/13097 useless extension candidates. Maximal degree in co-relation 43148. Up to 3089 conditions per place. [2022-12-06 16:39:59,244 INFO L137 encePairwiseOnDemand]: 89/100 looper letters, 36 selfloop transitions, 18 changer transitions 649/966 dead transitions. [2022-12-06 16:39:59,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 966 transitions, 10815 flow [2022-12-06 16:39:59,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:39:59,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:39:59,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 868 transitions. [2022-12-06 16:39:59,246 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.868 [2022-12-06 16:39:59,247 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 67 predicate places. [2022-12-06 16:39:59,247 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 966 transitions, 10815 flow [2022-12-06 16:39:59,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:59,247 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:59,248 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:59,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:39:59,248 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:39:59,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:59,248 INFO L85 PathProgramCache]: Analyzing trace with hash -51808286, now seen corresponding path program 1 times [2022-12-06 16:39:59,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:59,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792897551] [2022-12-06 16:39:59,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:59,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:59,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:59,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792897551] [2022-12-06 16:39:59,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792897551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:59,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:59,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:39:59,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236871780] [2022-12-06 16:39:59,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:59,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:39:59,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:59,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:39:59,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:39:59,378 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 100 [2022-12-06 16:39:59,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 966 transitions, 10815 flow. Second operand has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:59,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:59,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 100 [2022-12-06 16:39:59,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:40:00,844 INFO L130 PetriNetUnfolder]: 4710/10305 cut-off events. [2022-12-06 16:40:00,845 INFO L131 PetriNetUnfolder]: For 11500/18013 co-relation queries the response was YES. [2022-12-06 16:40:00,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33327 conditions, 10305 events. 4710/10305 cut-off events. For 11500/18013 co-relation queries the response was YES. Maximal size of possible extension queue 1090. Compared 103405 event pairs, 56 based on Foata normal form. 575/10280 useless extension candidates. Maximal degree in co-relation 33251. Up to 3075 conditions per place. [2022-12-06 16:40:00,909 INFO L137 encePairwiseOnDemand]: 89/100 looper letters, 57 selfloop transitions, 46 changer transitions 452/689 dead transitions. [2022-12-06 16:40:00,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 689 transitions, 7396 flow [2022-12-06 16:40:00,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:40:00,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:40:00,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1130 transitions. [2022-12-06 16:40:00,912 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8692307692307693 [2022-12-06 16:40:00,913 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 79 predicate places. [2022-12-06 16:40:00,913 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 689 transitions, 7396 flow [2022-12-06 16:40:00,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:40:00,913 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:40:00,913 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:40:00,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:40:00,914 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:40:00,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:40:00,914 INFO L85 PathProgramCache]: Analyzing trace with hash 692713327, now seen corresponding path program 1 times [2022-12-06 16:40:00,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:40:00,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917308018] [2022-12-06 16:40:00,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:40:00,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:40:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:40:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:40:01,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:40:01,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917308018] [2022-12-06 16:40:01,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917308018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:40:01,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:40:01,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:40:01,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125059318] [2022-12-06 16:40:01,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:40:01,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:40:01,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:40:01,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:40:01,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:40:01,046 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 100 [2022-12-06 16:40:01,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 689 transitions, 7396 flow. Second operand has 8 states, 8 states have (on average 82.625) internal successors, (661), 8 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:40:01,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:40:01,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 100 [2022-12-06 16:40:01,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:40:02,427 INFO L130 PetriNetUnfolder]: 3872/9061 cut-off events. [2022-12-06 16:40:02,427 INFO L131 PetriNetUnfolder]: For 14198/20941 co-relation queries the response was YES. [2022-12-06 16:40:02,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31642 conditions, 9061 events. 3872/9061 cut-off events. For 14198/20941 co-relation queries the response was YES. Maximal size of possible extension queue 1096. Compared 95003 event pairs, 10 based on Foata normal form. 557/9301 useless extension candidates. Maximal degree in co-relation 31562. Up to 2864 conditions per place. [2022-12-06 16:40:02,499 INFO L137 encePairwiseOnDemand]: 89/100 looper letters, 45 selfloop transitions, 88 changer transitions 274/489 dead transitions. [2022-12-06 16:40:02,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 489 transitions, 5076 flow [2022-12-06 16:40:02,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:40:02,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:40:02,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1391 transitions. [2022-12-06 16:40:02,502 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.869375 [2022-12-06 16:40:02,504 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 88 predicate places. [2022-12-06 16:40:02,504 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 489 transitions, 5076 flow [2022-12-06 16:40:02,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.625) internal successors, (661), 8 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:40:02,504 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:40:02,505 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:40:02,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:40:02,505 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:40:02,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:40:02,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1488485982, now seen corresponding path program 1 times [2022-12-06 16:40:02,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:40:02,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184795239] [2022-12-06 16:40:02,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:40:02,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:40:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:40:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:40:02,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:40:02,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184795239] [2022-12-06 16:40:02,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184795239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:40:02,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:40:02,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:40:02,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313209784] [2022-12-06 16:40:02,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:40:02,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:40:02,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:40:02,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:40:02,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:40:02,663 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 100 [2022-12-06 16:40:02,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 489 transitions, 5076 flow. Second operand has 7 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:40:02,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:40:02,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 100 [2022-12-06 16:40:02,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:40:03,579 INFO L130 PetriNetUnfolder]: 5590/12496 cut-off events. [2022-12-06 16:40:03,580 INFO L131 PetriNetUnfolder]: For 17760/26167 co-relation queries the response was YES. [2022-12-06 16:40:03,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45427 conditions, 12496 events. 5590/12496 cut-off events. For 17760/26167 co-relation queries the response was YES. Maximal size of possible extension queue 1551. Compared 134567 event pairs, 18 based on Foata normal form. 204/12220 useless extension candidates. Maximal degree in co-relation 45342. Up to 4179 conditions per place. [2022-12-06 16:40:03,643 INFO L137 encePairwiseOnDemand]: 94/100 looper letters, 31 selfloop transitions, 5 changer transitions 349/569 dead transitions. [2022-12-06 16:40:03,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 569 transitions, 6718 flow [2022-12-06 16:40:03,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 16:40:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 16:40:03,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 605 transitions. [2022-12-06 16:40:03,645 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8642857142857143 [2022-12-06 16:40:03,645 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 94 predicate places. [2022-12-06 16:40:03,646 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 569 transitions, 6718 flow [2022-12-06 16:40:03,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:40:03,646 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:40:03,646 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:40:03,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:40:03,646 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:40:03,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:40:03,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1876513250, now seen corresponding path program 2 times [2022-12-06 16:40:03,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:40:03,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487288624] [2022-12-06 16:40:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:40:03,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:40:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:40:03,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:40:03,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:40:03,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487288624] [2022-12-06 16:40:03,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487288624] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:40:03,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:40:03,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:40:03,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948606494] [2022-12-06 16:40:03,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:40:03,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:40:03,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:40:03,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:40:03,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:40:03,780 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 100 [2022-12-06 16:40:03,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 569 transitions, 6718 flow. Second operand has 9 states, 9 states have (on average 82.55555555555556) internal successors, (743), 9 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:40:03,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:40:03,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 100 [2022-12-06 16:40:03,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:40:05,410 INFO L130 PetriNetUnfolder]: 5622/12068 cut-off events. [2022-12-06 16:40:05,410 INFO L131 PetriNetUnfolder]: For 24563/44826 co-relation queries the response was YES. [2022-12-06 16:40:05,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52387 conditions, 12068 events. 5622/12068 cut-off events. For 24563/44826 co-relation queries the response was YES. Maximal size of possible extension queue 1570. Compared 128514 event pairs, 10 based on Foata normal form. 1127/12729 useless extension candidates. Maximal degree in co-relation 52298. Up to 4169 conditions per place. [2022-12-06 16:40:05,460 INFO L137 encePairwiseOnDemand]: 89/100 looper letters, 8 selfloop transitions, 19 changer transitions 346/439 dead transitions. [2022-12-06 16:40:05,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 439 transitions, 5374 flow [2022-12-06 16:40:05,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 16:40:05,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 16:40:05,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1631 transitions. [2022-12-06 16:40:05,463 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.858421052631579 [2022-12-06 16:40:05,463 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 82 predicate places. [2022-12-06 16:40:05,463 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 439 transitions, 5374 flow [2022-12-06 16:40:05,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 82.55555555555556) internal successors, (743), 9 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:40:05,464 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:40:05,464 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:40:05,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:40:05,464 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:40:05,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:40:05,464 INFO L85 PathProgramCache]: Analyzing trace with hash -590820533, now seen corresponding path program 1 times [2022-12-06 16:40:05,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:40:05,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023415762] [2022-12-06 16:40:05,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:40:05,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:40:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:40:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:40:05,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:40:05,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023415762] [2022-12-06 16:40:05,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023415762] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:40:05,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:40:05,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:40:05,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568965924] [2022-12-06 16:40:05,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:40:05,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:40:05,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:40:05,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:40:05,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:40:05,566 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 100 [2022-12-06 16:40:05,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 439 transitions, 5374 flow. Second operand has 7 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:40:05,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:40:05,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 100 [2022-12-06 16:40:05,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:40:07,194 INFO L130 PetriNetUnfolder]: 8131/17569 cut-off events. [2022-12-06 16:40:07,194 INFO L131 PetriNetUnfolder]: For 25445/38013 co-relation queries the response was YES. [2022-12-06 16:40:07,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74741 conditions, 17569 events. 8131/17569 cut-off events. For 25445/38013 co-relation queries the response was YES. Maximal size of possible extension queue 2325. Compared 199860 event pairs, 11 based on Foata normal form. 77/16685 useless extension candidates. Maximal degree in co-relation 74647. Up to 6209 conditions per place. [2022-12-06 16:40:07,289 INFO L137 encePairwiseOnDemand]: 94/100 looper letters, 0 selfloop transitions, 0 changer transitions 468/468 dead transitions. [2022-12-06 16:40:07,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 468 transitions, 6120 flow [2022-12-06 16:40:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 16:40:07,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 16:40:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 589 transitions. [2022-12-06 16:40:07,290 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8414285714285714 [2022-12-06 16:40:07,290 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 86 predicate places. [2022-12-06 16:40:07,291 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 468 transitions, 6120 flow [2022-12-06 16:40:07,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:40:07,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 16:40:07,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-06 16:40:07,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 16:40:07,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 16:40:07,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 16:40:07,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 16:40:07,294 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:40:07,296 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:40:07,296 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:40:07,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:40:07 BasicIcfg [2022-12-06 16:40:07,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:40:07,299 INFO L158 Benchmark]: Toolchain (without parser) took 14460.46ms. Allocated memory was 207.6MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 182.6MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 610.6MB. Max. memory is 8.0GB. [2022-12-06 16:40:07,300 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 207.6MB. Free memory is still 183.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:40:07,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.29ms. Allocated memory is still 207.6MB. Free memory was 182.6MB in the beginning and 158.5MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-06 16:40:07,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.39ms. Allocated memory is still 207.6MB. Free memory was 158.5MB in the beginning and 156.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:40:07,300 INFO L158 Benchmark]: Boogie Preprocessor took 22.13ms. Allocated memory is still 207.6MB. Free memory was 156.4MB in the beginning and 154.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:40:07,300 INFO L158 Benchmark]: RCFGBuilder took 476.84ms. Allocated memory is still 207.6MB. Free memory was 154.8MB in the beginning and 140.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 16:40:07,301 INFO L158 Benchmark]: TraceAbstraction took 13530.99ms. Allocated memory was 207.6MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 139.6MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 567.6MB. Max. memory is 8.0GB. [2022-12-06 16:40:07,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 207.6MB. Free memory is still 183.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 391.29ms. Allocated memory is still 207.6MB. Free memory was 182.6MB in the beginning and 158.5MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.39ms. Allocated memory is still 207.6MB. Free memory was 158.5MB in the beginning and 156.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.13ms. Allocated memory is still 207.6MB. Free memory was 156.4MB in the beginning and 154.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 476.84ms. Allocated memory is still 207.6MB. Free memory was 154.8MB in the beginning and 140.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 13530.99ms. Allocated memory was 207.6MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 139.6MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 567.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 129 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 769 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 769 mSDsluCounter, 706 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 553 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 946 IncrementalHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 153 mSDtfsCounter, 946 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12615occurred in iteration=5, InterpolantAutomatonStates: 135, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 718 NumberOfCodeBlocks, 718 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 707 ConstructedInterpolants, 0 QuantifiedInterpolants, 2807 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:40:07,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...