/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 11:59:49,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:59:49,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:59:49,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:59:49,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:59:49,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:59:49,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:59:49,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:59:49,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:59:49,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:59:49,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:59:49,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:59:49,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:59:49,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:59:49,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:59:49,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:59:49,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:59:49,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:59:49,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:59:49,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:59:49,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:59:49,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:59:49,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:59:49,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:59:49,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:59:49,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:59:49,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:59:49,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:59:49,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:59:49,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:59:49,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:59:49,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:59:49,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:59:49,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:59:49,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:59:49,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:59:49,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:59:49,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:59:49,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:59:49,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:59:49,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:59:49,227 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-13 11:59:49,251 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:59:49,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:59:49,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:59:49,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:59:49,253 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:59:49,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:59:49,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:59:49,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:59:49,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:59:49,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:59:49,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:59:49,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:59:49,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:59:49,255 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:59:49,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:59:49,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:59:49,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:59:49,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:59:49,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:59:49,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 11:59:49,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:59:49,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:59:49,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:59:49,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:59:49,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:59:49,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:59:49,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:59:49,256 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 11:59:49,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 11:59:49,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:59:49,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:59:49,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:59:49,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:59:49,549 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:59:49,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 11:59:50,629 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:59:50,890 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:59:50,890 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 11:59:50,900 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b13b59fc/fd1cfc9d92af4bb4bfe7d0687d081284/FLAG7186eb9b2 [2022-12-13 11:59:50,914 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b13b59fc/fd1cfc9d92af4bb4bfe7d0687d081284 [2022-12-13 11:59:50,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:59:50,918 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 11:59:50,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:59:50,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:59:50,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:59:50,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:59:50" (1/1) ... [2022-12-13 11:59:50,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b4db09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:50, skipping insertion in model container [2022-12-13 11:59:50,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:59:50" (1/1) ... [2022-12-13 11:59:50,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:59:50,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:59:51,085 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-12-13 11:59:51,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:59:51,247 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:59:51,255 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-12-13 11:59:51,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:59:51,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:59:51,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:59:51,308 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:59:51,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51 WrapperNode [2022-12-13 11:59:51,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:59:51,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:59:51,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:59:51,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:59:51,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,361 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-13 11:59:51,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:59:51,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:59:51,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:59:51,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:59:51,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,393 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:59:51,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:59:51,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:59:51,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:59:51,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (1/1) ... [2022-12-13 11:59:51,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:59:51,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 11:59:51,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:59:51,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:59:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:59:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 11:59:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:59:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:59:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:59:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 11:59:51,462 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 11:59:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 11:59:51,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 11:59:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 11:59:51,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 11:59:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:59:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 11:59:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:59:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:59:51,465 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 11:59:51,625 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 11:59:51,627 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:59:51,809 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 11:59:51,814 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:59:51,814 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:59:51,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:59:51 BoogieIcfgContainer [2022-12-13 11:59:51,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:59:51,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:59:51,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:59:51,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:59:51,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:59:50" (1/3) ... [2022-12-13 11:59:51,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56faeb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:59:51, skipping insertion in model container [2022-12-13 11:59:51,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:59:51" (2/3) ... [2022-12-13 11:59:51,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56faeb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:59:51, skipping insertion in model container [2022-12-13 11:59:51,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:59:51" (3/3) ... [2022-12-13 11:59:51,822 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 11:59:51,838 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:59:51,838 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:59:51,838 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:59:51,911 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 11:59:51,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-13 11:59:51,992 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-13 11:59:51,992 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:59:51,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-13 11:59:51,996 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-13 11:59:52,000 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-13 11:59:52,002 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:59:52,040 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-13 11:59:52,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 71 transitions, 151 flow [2022-12-13 11:59:52,070 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-12-13 11:59:52,070 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:59:52,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-13 11:59:52,072 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-13 11:59:52,072 INFO L226 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-13 11:59:53,903 INFO L241 LiptonReduction]: Total number of compositions: 54 [2022-12-13 11:59:53,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:59:53,922 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24711272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 11:59:53,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 11:59:53,925 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2022-12-13 11:59:53,925 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:59:53,925 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:59:53,926 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:59:53,926 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:59:53,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:59:53,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1767221015, now seen corresponding path program 1 times [2022-12-13 11:59:53,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:59:53,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111556879] [2022-12-13 11:59:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:59:53,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:59:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:59:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:59:54,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:59:54,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111556879] [2022-12-13 11:59:54,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111556879] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:59:54,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:59:54,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:59:54,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286144727] [2022-12-13 11:59:54,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:59:54,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:59:54,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:59:54,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:59:54,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:59:54,380 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2022-12-13 11:59:54,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:54,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:59:54,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2022-12-13 11:59:54,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:59:54,491 INFO L130 PetriNetUnfolder]: 383/646 cut-off events. [2022-12-13 11:59:54,491 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 11:59:54,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 646 events. 383/646 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2968 event pairs, 199 based on Foata normal form. 16/503 useless extension candidates. Maximal degree in co-relation 1282. Up to 519 conditions per place. [2022-12-13 11:59:54,500 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 26 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2022-12-13 11:59:54,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 145 flow [2022-12-13 11:59:54,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:59:54,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:59:54,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2022-12-13 11:59:54,509 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7160493827160493 [2022-12-13 11:59:54,511 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 63 flow. Second operand 3 states and 58 transitions. [2022-12-13 11:59:54,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 145 flow [2022-12-13 11:59:54,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 140 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 11:59:54,515 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 66 flow [2022-12-13 11:59:54,517 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2022-12-13 11:59:54,520 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2022-12-13 11:59:54,520 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:59:54,521 INFO L89 Accepts]: Start accepts. Operand has 36 places, 26 transitions, 66 flow [2022-12-13 11:59:54,523 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:59:54,523 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:59:54,523 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 26 transitions, 66 flow [2022-12-13 11:59:54,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 26 transitions, 66 flow [2022-12-13 11:59:54,528 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-12-13 11:59:54,528 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:59:54,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 0/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 54 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 11:59:54,530 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 26 transitions, 66 flow [2022-12-13 11:59:54,530 INFO L226 LiptonReduction]: Number of co-enabled transitions 356 [2022-12-13 11:59:54,575 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 11:59:54,576 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 56 [2022-12-13 11:59:54,577 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 66 flow [2022-12-13 11:59:54,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:54,577 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:59:54,577 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:59:54,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:59:54,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:59:54,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:59:54,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1050723259, now seen corresponding path program 1 times [2022-12-13 11:59:54,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:59:54,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415099727] [2022-12-13 11:59:54,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:59:54,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:59:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:59:54,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:59:54,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:59:54,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415099727] [2022-12-13 11:59:54,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415099727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:59:54,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:59:54,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:59:54,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062965310] [2022-12-13 11:59:54,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:59:54,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:59:54,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:59:54,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:59:54,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:59:54,702 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 26 [2022-12-13 11:59:54,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:54,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:59:54,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 26 [2022-12-13 11:59:54,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:59:54,788 INFO L130 PetriNetUnfolder]: 354/662 cut-off events. [2022-12-13 11:59:54,788 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2022-12-13 11:59:54,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1388 conditions, 662 events. 354/662 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3637 event pairs, 111 based on Foata normal form. 12/522 useless extension candidates. Maximal degree in co-relation 1377. Up to 400 conditions per place. [2022-12-13 11:59:54,793 INFO L137 encePairwiseOnDemand]: 23/26 looper letters, 22 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2022-12-13 11:59:54,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 131 flow [2022-12-13 11:59:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:59:54,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:59:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2022-12-13 11:59:54,795 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-13 11:59:54,796 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 66 flow. Second operand 3 states and 52 transitions. [2022-12-13 11:59:54,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 131 flow [2022-12-13 11:59:54,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 125 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 11:59:54,797 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 70 flow [2022-12-13 11:59:54,797 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2022-12-13 11:59:54,797 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2022-12-13 11:59:54,797 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:59:54,798 INFO L89 Accepts]: Start accepts. Operand has 37 places, 26 transitions, 70 flow [2022-12-13 11:59:54,798 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:59:54,798 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:59:54,798 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 26 transitions, 70 flow [2022-12-13 11:59:54,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 26 transitions, 70 flow [2022-12-13 11:59:54,801 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-12-13 11:59:54,802 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 11:59:54,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 26 events. 0/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 11:59:54,802 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 26 transitions, 70 flow [2022-12-13 11:59:54,802 INFO L226 LiptonReduction]: Number of co-enabled transitions 352 [2022-12-13 11:59:54,806 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 11:59:54,807 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-13 11:59:54,808 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 70 flow [2022-12-13 11:59:54,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:54,808 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:59:54,808 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:59:54,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:59:54,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:59:54,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:59:54,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1103918341, now seen corresponding path program 1 times [2022-12-13 11:59:54,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:59:54,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835672519] [2022-12-13 11:59:54,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:59:54,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:59:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:59:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:59:54,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:59:54,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835672519] [2022-12-13 11:59:54,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835672519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:59:54,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:59:54,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:59:54,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320806694] [2022-12-13 11:59:54,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:59:54,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:59:54,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:59:54,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:59:54,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:59:54,895 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2022-12-13 11:59:54,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:54,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:59:54,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2022-12-13 11:59:54,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:59:55,022 INFO L130 PetriNetUnfolder]: 646/1130 cut-off events. [2022-12-13 11:59:55,022 INFO L131 PetriNetUnfolder]: For 267/267 co-relation queries the response was YES. [2022-12-13 11:59:55,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2446 conditions, 1130 events. 646/1130 cut-off events. For 267/267 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 6820 event pairs, 62 based on Foata normal form. 45/903 useless extension candidates. Maximal degree in co-relation 2434. Up to 463 conditions per place. [2022-12-13 11:59:55,027 INFO L137 encePairwiseOnDemand]: 20/26 looper letters, 40 selfloop transitions, 7 changer transitions 2/57 dead transitions. [2022-12-13 11:59:55,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 57 transitions, 249 flow [2022-12-13 11:59:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:59:55,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:59:55,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2022-12-13 11:59:55,029 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7 [2022-12-13 11:59:55,029 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 70 flow. Second operand 5 states and 91 transitions. [2022-12-13 11:59:55,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 57 transitions, 249 flow [2022-12-13 11:59:55,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 57 transitions, 241 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 11:59:55,031 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 116 flow [2022-12-13 11:59:55,031 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2022-12-13 11:59:55,032 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places. [2022-12-13 11:59:55,032 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:59:55,032 INFO L89 Accepts]: Start accepts. Operand has 42 places, 31 transitions, 116 flow [2022-12-13 11:59:55,032 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:59:55,032 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:59:55,033 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 31 transitions, 116 flow [2022-12-13 11:59:55,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 31 transitions, 116 flow [2022-12-13 11:59:55,037 INFO L130 PetriNetUnfolder]: 8/82 cut-off events. [2022-12-13 11:59:55,038 INFO L131 PetriNetUnfolder]: For 22/28 co-relation queries the response was YES. [2022-12-13 11:59:55,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 82 events. 8/82 cut-off events. For 22/28 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 436 event pairs, 2 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 146. Up to 16 conditions per place. [2022-12-13 11:59:55,038 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 31 transitions, 116 flow [2022-12-13 11:59:55,038 INFO L226 LiptonReduction]: Number of co-enabled transitions 434 [2022-12-13 11:59:55,040 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 11:59:55,041 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9 [2022-12-13 11:59:55,041 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 116 flow [2022-12-13 11:59:55,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:55,041 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:59:55,041 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:59:55,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:59:55,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:59:55,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:59:55,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1786946517, now seen corresponding path program 2 times [2022-12-13 11:59:55,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:59:55,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724595096] [2022-12-13 11:59:55,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:59:55,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:59:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:59:55,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:59:55,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:59:55,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724595096] [2022-12-13 11:59:55,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724595096] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:59:55,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:59:55,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:59:55,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346669530] [2022-12-13 11:59:55,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:59:55,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:59:55,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:59:55,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:59:55,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:59:55,117 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2022-12-13 11:59:55,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:55,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:59:55,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2022-12-13 11:59:55,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:59:55,269 INFO L130 PetriNetUnfolder]: 951/1703 cut-off events. [2022-12-13 11:59:55,269 INFO L131 PetriNetUnfolder]: For 1461/1471 co-relation queries the response was YES. [2022-12-13 11:59:55,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 1703 events. 951/1703 cut-off events. For 1461/1471 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 11105 event pairs, 127 based on Foata normal form. 70/1370 useless extension candidates. Maximal degree in co-relation 4106. Up to 772 conditions per place. [2022-12-13 11:59:55,275 INFO L137 encePairwiseOnDemand]: 20/26 looper letters, 40 selfloop transitions, 10 changer transitions 3/62 dead transitions. [2022-12-13 11:59:55,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 62 transitions, 333 flow [2022-12-13 11:59:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:59:55,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:59:55,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 87 transitions. [2022-12-13 11:59:55,277 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6692307692307692 [2022-12-13 11:59:55,277 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 116 flow. Second operand 5 states and 87 transitions. [2022-12-13 11:59:55,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 62 transitions, 333 flow [2022-12-13 11:59:55,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 62 transitions, 329 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:59:55,279 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 210 flow [2022-12-13 11:59:55,280 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=210, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2022-12-13 11:59:55,280 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2022-12-13 11:59:55,280 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:59:55,280 INFO L89 Accepts]: Start accepts. Operand has 48 places, 39 transitions, 210 flow [2022-12-13 11:59:55,281 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:59:55,281 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:59:55,281 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 39 transitions, 210 flow [2022-12-13 11:59:55,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 210 flow [2022-12-13 11:59:55,288 INFO L130 PetriNetUnfolder]: 13/125 cut-off events. [2022-12-13 11:59:55,288 INFO L131 PetriNetUnfolder]: For 106/140 co-relation queries the response was YES. [2022-12-13 11:59:55,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 125 events. 13/125 cut-off events. For 106/140 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 735 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 274. Up to 24 conditions per place. [2022-12-13 11:59:55,289 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 39 transitions, 210 flow [2022-12-13 11:59:55,289 INFO L226 LiptonReduction]: Number of co-enabled transitions 516 [2022-12-13 11:59:55,299 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 11:59:55,299 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 19 [2022-12-13 11:59:55,299 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 210 flow [2022-12-13 11:59:55,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:55,300 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:59:55,300 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:59:55,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:59:55,300 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:59:55,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:59:55,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1299424058, now seen corresponding path program 1 times [2022-12-13 11:59:55,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:59:55,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102831167] [2022-12-13 11:59:55,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:59:55,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:59:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:59:55,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:59:55,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:59:55,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102831167] [2022-12-13 11:59:55,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102831167] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:59:55,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:59:55,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:59:55,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273469960] [2022-12-13 11:59:55,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:59:55,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:59:55,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:59:55,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:59:55,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:59:55,375 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2022-12-13 11:59:55,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:55,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:59:55,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2022-12-13 11:59:55,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:59:55,513 INFO L130 PetriNetUnfolder]: 989/1831 cut-off events. [2022-12-13 11:59:55,513 INFO L131 PetriNetUnfolder]: For 2667/2683 co-relation queries the response was YES. [2022-12-13 11:59:55,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4780 conditions, 1831 events. 989/1831 cut-off events. For 2667/2683 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 12596 event pairs, 257 based on Foata normal form. 60/1443 useless extension candidates. Maximal degree in co-relation 4761. Up to 753 conditions per place. [2022-12-13 11:59:55,523 INFO L137 encePairwiseOnDemand]: 22/26 looper letters, 29 selfloop transitions, 5 changer transitions 10/53 dead transitions. [2022-12-13 11:59:55,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 53 transitions, 339 flow [2022-12-13 11:59:55,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:59:55,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:59:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2022-12-13 11:59:55,524 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6442307692307693 [2022-12-13 11:59:55,525 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 210 flow. Second operand 4 states and 67 transitions. [2022-12-13 11:59:55,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 53 transitions, 339 flow [2022-12-13 11:59:55,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 337 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-13 11:59:55,530 INFO L231 Difference]: Finished difference. Result has 53 places, 34 transitions, 187 flow [2022-12-13 11:59:55,530 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=187, PETRI_PLACES=53, PETRI_TRANSITIONS=34} [2022-12-13 11:59:55,531 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 17 predicate places. [2022-12-13 11:59:55,531 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:59:55,531 INFO L89 Accepts]: Start accepts. Operand has 53 places, 34 transitions, 187 flow [2022-12-13 11:59:55,532 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:59:55,532 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:59:55,532 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 34 transitions, 187 flow [2022-12-13 11:59:55,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 34 transitions, 187 flow [2022-12-13 11:59:55,537 INFO L130 PetriNetUnfolder]: 6/77 cut-off events. [2022-12-13 11:59:55,537 INFO L131 PetriNetUnfolder]: For 81/83 co-relation queries the response was YES. [2022-12-13 11:59:55,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 77 events. 6/77 cut-off events. For 81/83 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 399 event pairs, 0 based on Foata normal form. 2/55 useless extension candidates. Maximal degree in co-relation 186. Up to 15 conditions per place. [2022-12-13 11:59:55,561 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 34 transitions, 187 flow [2022-12-13 11:59:55,561 INFO L226 LiptonReduction]: Number of co-enabled transitions 388 [2022-12-13 11:59:55,603 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 11:59:55,604 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 73 [2022-12-13 11:59:55,604 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 34 transitions, 201 flow [2022-12-13 11:59:55,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:55,604 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:59:55,604 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:59:55,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:59:55,605 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:59:55,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:59:55,605 INFO L85 PathProgramCache]: Analyzing trace with hash 439190413, now seen corresponding path program 1 times [2022-12-13 11:59:55,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:59:55,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931448060] [2022-12-13 11:59:55,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:59:55,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:59:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:59:55,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:59:55,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:59:55,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931448060] [2022-12-13 11:59:55,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931448060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:59:55,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:59:55,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:59:55,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205628768] [2022-12-13 11:59:55,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:59:55,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:59:55,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:59:55,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:59:55,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:59:55,706 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2022-12-13 11:59:55,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 34 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:55,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:59:55,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2022-12-13 11:59:55,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:59:55,804 INFO L130 PetriNetUnfolder]: 472/885 cut-off events. [2022-12-13 11:59:55,804 INFO L131 PetriNetUnfolder]: For 2045/2051 co-relation queries the response was YES. [2022-12-13 11:59:55,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2618 conditions, 885 events. 472/885 cut-off events. For 2045/2051 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5288 event pairs, 266 based on Foata normal form. 13/662 useless extension candidates. Maximal degree in co-relation 2595. Up to 696 conditions per place. [2022-12-13 11:59:55,808 INFO L137 encePairwiseOnDemand]: 25/28 looper letters, 27 selfloop transitions, 4 changer transitions 2/43 dead transitions. [2022-12-13 11:59:55,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 43 transitions, 304 flow [2022-12-13 11:59:55,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:59:55,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:59:55,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2022-12-13 11:59:55,811 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-13 11:59:55,811 INFO L175 Difference]: Start difference. First operand has 52 places, 34 transitions, 201 flow. Second operand 3 states and 56 transitions. [2022-12-13 11:59:55,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 43 transitions, 304 flow [2022-12-13 11:59:55,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 43 transitions, 267 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-12-13 11:59:55,816 INFO L231 Difference]: Finished difference. Result has 50 places, 33 transitions, 175 flow [2022-12-13 11:59:55,817 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=50, PETRI_TRANSITIONS=33} [2022-12-13 11:59:55,818 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 14 predicate places. [2022-12-13 11:59:55,819 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:59:55,819 INFO L89 Accepts]: Start accepts. Operand has 50 places, 33 transitions, 175 flow [2022-12-13 11:59:55,820 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:59:55,820 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:59:55,820 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 33 transitions, 175 flow [2022-12-13 11:59:55,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 33 transitions, 175 flow [2022-12-13 11:59:55,824 INFO L130 PetriNetUnfolder]: 4/56 cut-off events. [2022-12-13 11:59:55,825 INFO L131 PetriNetUnfolder]: For 47/49 co-relation queries the response was YES. [2022-12-13 11:59:55,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 56 events. 4/56 cut-off events. For 47/49 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 233 event pairs, 0 based on Foata normal form. 2/40 useless extension candidates. Maximal degree in co-relation 120. Up to 10 conditions per place. [2022-12-13 11:59:55,825 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 33 transitions, 175 flow [2022-12-13 11:59:55,825 INFO L226 LiptonReduction]: Number of co-enabled transitions 322 [2022-12-13 11:59:55,842 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [259] $Ultimate##0-->L743: Formula: (and (= v_~x~0_20 v_~__unbuffered_p1_EAX~0_32) (= v_P1Thread1of1ForFork0_~arg.base_5 |v_P1Thread1of1ForFork0_#in~arg.base_5|) (= v_P1Thread1of1ForFork0_~arg.offset_5 |v_P1Thread1of1ForFork0_#in~arg.offset_5|)) InVars {P1Thread1of1ForFork0_#in~arg.base=|v_P1Thread1of1ForFork0_#in~arg.base_5|, P1Thread1of1ForFork0_#in~arg.offset=|v_P1Thread1of1ForFork0_#in~arg.offset_5|, ~x~0=v_~x~0_20} OutVars{P1Thread1of1ForFork0_~arg.offset=v_P1Thread1of1ForFork0_~arg.offset_5, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_32, P1Thread1of1ForFork0_~arg.base=v_P1Thread1of1ForFork0_~arg.base_5, P1Thread1of1ForFork0_#in~arg.base=|v_P1Thread1of1ForFork0_#in~arg.base_5|, P1Thread1of1ForFork0_#in~arg.offset=|v_P1Thread1of1ForFork0_#in~arg.offset_5|, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[P1Thread1of1ForFork0_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork0_~arg.base] and [263] $Ultimate##0-->L761: Formula: (and (= v_~z~0_42 1) (= v_~y~0_36 v_~__unbuffered_p2_EAX~0_47) (= v_P2Thread1of1ForFork1_~arg.base_15 |v_P2Thread1of1ForFork1_#in~arg.base_15|) (= v_P2Thread1of1ForFork1_~arg.offset_15 |v_P2Thread1of1ForFork1_#in~arg.offset_15|)) InVars {P2Thread1of1ForFork1_#in~arg.offset=|v_P2Thread1of1ForFork1_#in~arg.offset_15|, P2Thread1of1ForFork1_#in~arg.base=|v_P2Thread1of1ForFork1_#in~arg.base_15|, ~y~0=v_~y~0_36} OutVars{P2Thread1of1ForFork1_#in~arg.offset=|v_P2Thread1of1ForFork1_#in~arg.offset_15|, P2Thread1of1ForFork1_~arg.offset=v_P2Thread1of1ForFork1_~arg.offset_15, P2Thread1of1ForFork1_~arg.base=v_P2Thread1of1ForFork1_~arg.base_15, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, P2Thread1of1ForFork1_#in~arg.base=|v_P2Thread1of1ForFork1_#in~arg.base_15|, ~z~0=v_~z~0_42, ~y~0=v_~y~0_36} AuxVars[] AssignedVars[P2Thread1of1ForFork1_~arg.offset, P2Thread1of1ForFork1_~arg.base, ~__unbuffered_p2_EAX~0, ~z~0] [2022-12-13 11:59:55,898 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 11:59:55,898 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 79 [2022-12-13 11:59:55,898 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 175 flow [2022-12-13 11:59:55,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:55,899 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:59:55,899 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:59:55,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:59:55,899 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:59:55,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:59:55,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1787288633, now seen corresponding path program 1 times [2022-12-13 11:59:55,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:59:55,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080353597] [2022-12-13 11:59:55,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:59:55,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:59:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:59:55,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:59:55,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:59:55,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080353597] [2022-12-13 11:59:55,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080353597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:59:55,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:59:55,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:59:55,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302413889] [2022-12-13 11:59:55,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:59:55,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:59:55,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:59:55,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:59:55,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:59:55,982 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2022-12-13 11:59:55,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:55,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:59:55,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2022-12-13 11:59:55,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:59:56,057 INFO L130 PetriNetUnfolder]: 440/791 cut-off events. [2022-12-13 11:59:56,058 INFO L131 PetriNetUnfolder]: For 1823/1825 co-relation queries the response was YES. [2022-12-13 11:59:56,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2114 conditions, 791 events. 440/791 cut-off events. For 1823/1825 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3856 event pairs, 122 based on Foata normal form. 50/628 useless extension candidates. Maximal degree in co-relation 2093. Up to 235 conditions per place. [2022-12-13 11:59:56,061 INFO L137 encePairwiseOnDemand]: 24/28 looper letters, 23 selfloop transitions, 3 changer transitions 13/45 dead transitions. [2022-12-13 11:59:56,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 282 flow [2022-12-13 11:59:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:59:56,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:59:56,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2022-12-13 11:59:56,062 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2022-12-13 11:59:56,062 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 175 flow. Second operand 4 states and 64 transitions. [2022-12-13 11:59:56,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 282 flow [2022-12-13 11:59:56,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 242 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-12-13 11:59:56,065 INFO L231 Difference]: Finished difference. Result has 50 places, 24 transitions, 98 flow [2022-12-13 11:59:56,065 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2022-12-13 11:59:56,066 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 14 predicate places. [2022-12-13 11:59:56,067 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:59:56,067 INFO L89 Accepts]: Start accepts. Operand has 50 places, 24 transitions, 98 flow [2022-12-13 11:59:56,067 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:59:56,067 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:59:56,067 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 24 transitions, 98 flow [2022-12-13 11:59:56,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 24 transitions, 98 flow [2022-12-13 11:59:56,072 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-12-13 11:59:56,072 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 11:59:56,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 24 events. 0/24 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 31 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-13 11:59:56,072 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 24 transitions, 98 flow [2022-12-13 11:59:56,072 INFO L226 LiptonReduction]: Number of co-enabled transitions 182 [2022-12-13 11:59:56,088 ERROR L806 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-13 11:59:56,118 INFO L241 LiptonReduction]: Total number of compositions: 2 [2022-12-13 11:59:56,120 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 53 [2022-12-13 11:59:56,120 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 22 transitions, 94 flow [2022-12-13 11:59:56,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:56,121 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:59:56,121 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:59:56,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:59:56,121 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:59:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:59:56,122 INFO L85 PathProgramCache]: Analyzing trace with hash 428629736, now seen corresponding path program 1 times [2022-12-13 11:59:56,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:59:56,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520906483] [2022-12-13 11:59:56,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:59:56,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:59:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:59:56,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:59:56,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:59:56,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520906483] [2022-12-13 11:59:56,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520906483] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:59:56,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:59:56,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:59:56,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389708838] [2022-12-13 11:59:56,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:59:56,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:59:56,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:59:56,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:59:56,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:59:56,226 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 22 [2022-12-13 11:59:56,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 22 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:56,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:59:56,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 22 [2022-12-13 11:59:56,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:59:56,265 INFO L130 PetriNetUnfolder]: 123/235 cut-off events. [2022-12-13 11:59:56,265 INFO L131 PetriNetUnfolder]: For 509/509 co-relation queries the response was YES. [2022-12-13 11:59:56,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 235 events. 123/235 cut-off events. For 509/509 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 908 event pairs, 24 based on Foata normal form. 27/194 useless extension candidates. Maximal degree in co-relation 587. Up to 153 conditions per place. [2022-12-13 11:59:56,266 INFO L137 encePairwiseOnDemand]: 19/22 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2022-12-13 11:59:56,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 26 transitions, 134 flow [2022-12-13 11:59:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:59:56,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:59:56,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2022-12-13 11:59:56,268 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4772727272727273 [2022-12-13 11:59:56,268 INFO L175 Difference]: Start difference. First operand has 44 places, 22 transitions, 94 flow. Second operand 4 states and 42 transitions. [2022-12-13 11:59:56,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 26 transitions, 134 flow [2022-12-13 11:59:56,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 104 flow, removed 2 selfloop flow, removed 13 redundant places. [2022-12-13 11:59:56,269 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2022-12-13 11:59:56,269 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2022-12-13 11:59:56,271 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2022-12-13 11:59:56,271 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:59:56,271 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 0 transitions, 0 flow [2022-12-13 11:59:56,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 11:59:56,272 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 11:59:56,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:59:56,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 11:59:56,272 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 11:59:56,272 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 11:59:56,272 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 11:59:56,274 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3 [2022-12-13 11:59:56,274 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 11:59:56,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:56,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 11:59:56,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 11:59:56,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 11:59:56,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 11:59:56,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:59:56,276 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-12-13 11:59:56,278 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:59:56,279 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:59:56,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:59:56 BasicIcfg [2022-12-13 11:59:56,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:59:56,283 INFO L158 Benchmark]: Toolchain (without parser) took 5365.33ms. Allocated memory was 195.0MB in the beginning and 292.6MB in the end (delta: 97.5MB). Free memory was 168.9MB in the beginning and 237.5MB in the end (delta: -68.6MB). Peak memory consumption was 29.9MB. Max. memory is 8.0GB. [2022-12-13 11:59:56,283 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 171.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 11:59:56,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.18ms. Allocated memory is still 195.0MB. Free memory was 168.9MB in the beginning and 145.3MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-13 11:59:56,283 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.16ms. Allocated memory is still 195.0MB. Free memory was 145.3MB in the beginning and 143.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 11:59:56,284 INFO L158 Benchmark]: Boogie Preprocessor took 33.17ms. Allocated memory is still 195.0MB. Free memory was 143.7MB in the beginning and 142.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 11:59:56,284 INFO L158 Benchmark]: RCFGBuilder took 419.74ms. Allocated memory is still 195.0MB. Free memory was 142.2MB in the beginning and 128.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-13 11:59:56,284 INFO L158 Benchmark]: TraceAbstraction took 4464.72ms. Allocated memory was 195.0MB in the beginning and 292.6MB in the end (delta: 97.5MB). Free memory was 127.0MB in the beginning and 237.5MB in the end (delta: -110.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 11:59:56,285 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 195.0MB. Free memory is still 171.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 390.18ms. Allocated memory is still 195.0MB. Free memory was 168.9MB in the beginning and 145.3MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.16ms. Allocated memory is still 195.0MB. Free memory was 145.3MB in the beginning and 143.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.17ms. Allocated memory is still 195.0MB. Free memory was 143.7MB in the beginning and 142.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 419.74ms. Allocated memory is still 195.0MB. Free memory was 142.2MB in the beginning and 128.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4464.72ms. Allocated memory was 195.0MB in the beginning and 292.6MB in the end (delta: 97.5MB). Free memory was 127.0MB in the beginning and 237.5MB in the end (delta: -110.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 80 PlacesBefore, 36 PlacesAfterwards, 71 TransitionsBefore, 27 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1276, independent: 1222, independent conditional: 1222, independent unconditional: 0, dependent: 54, dependent conditional: 54, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1276, independent: 1222, independent conditional: 0, independent unconditional: 1222, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1276, independent: 1222, independent conditional: 0, independent unconditional: 1222, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1276, independent: 1222, independent conditional: 0, independent unconditional: 1222, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 848, independent: 816, independent conditional: 0, independent unconditional: 816, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 848, independent: 794, independent conditional: 0, independent unconditional: 794, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1276, independent: 406, independent conditional: 0, independent unconditional: 406, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 848, unknown conditional: 0, unknown unconditional: 848] , Statistics on independence cache: Total cache size (in pairs): 1313, Positive cache size: 1281, Positive conditional cache size: 0, Positive unconditional cache size: 1281, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 36 PlacesBefore, 36 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 356 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 177, independent: 153, independent conditional: 153, independent unconditional: 0, dependent: 24, dependent conditional: 24, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 177, independent: 153, independent conditional: 13, independent unconditional: 140, dependent: 24, dependent conditional: 4, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 177, independent: 153, independent conditional: 0, independent unconditional: 153, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 177, independent: 153, independent conditional: 0, independent unconditional: 153, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 134, independent: 119, independent conditional: 0, independent unconditional: 119, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 134, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 177, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 134, unknown conditional: 0, unknown unconditional: 134] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 119, Positive conditional cache size: 0, Positive unconditional cache size: 119, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 37 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 164, independent: 141, independent conditional: 141, independent unconditional: 0, dependent: 23, dependent conditional: 23, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 164, independent: 141, independent conditional: 6, independent unconditional: 135, dependent: 23, dependent conditional: 4, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 164, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 164, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 164, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 119, Positive conditional cache size: 0, Positive unconditional cache size: 119, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 10, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 42 PlacesBefore, 42 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 434 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 122, independent: 105, independent conditional: 105, independent unconditional: 0, dependent: 17, dependent conditional: 17, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 122, independent: 105, independent conditional: 29, independent unconditional: 76, dependent: 17, dependent conditional: 10, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 122, independent: 105, independent conditional: 3, independent unconditional: 102, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 122, independent: 105, independent conditional: 3, independent unconditional: 102, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 122, independent: 105, independent conditional: 3, independent unconditional: 102, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 119, Positive conditional cache size: 0, Positive unconditional cache size: 119, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 48 PlacesBefore, 48 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 516 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 77, independent: 65, independent conditional: 65, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 77, independent: 65, independent conditional: 16, independent unconditional: 49, dependent: 12, dependent conditional: 8, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 77, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 77, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 77, independent: 54, independent conditional: 0, independent unconditional: 54, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 145, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 24, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 52 PlacesBefore, 52 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 388 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 137, independent: 114, independent conditional: 114, independent unconditional: 0, dependent: 23, dependent conditional: 23, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 137, independent: 114, independent conditional: 48, independent unconditional: 66, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 137, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 137, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 137, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 164, Positive cache size: 149, Positive conditional cache size: 0, Positive unconditional cache size: 149, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 48, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 50 PlacesBefore, 49 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 322 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 271, independent: 244, independent conditional: 244, independent unconditional: 0, dependent: 27, dependent conditional: 27, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 271, independent: 244, independent conditional: 55, independent unconditional: 189, dependent: 27, dependent conditional: 15, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 271, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 271, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 271, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 207, Positive cache size: 192, Positive conditional cache size: 0, Positive unconditional cache size: 192, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 70, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 46 PlacesBefore, 44 PlacesAfterwards, 24 TransitionsBefore, 22 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 127, independent: 107, independent conditional: 107, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 127, independent: 107, independent conditional: 19, independent unconditional: 88, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 127, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 127, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 127, independent: 93, independent conditional: 0, independent unconditional: 93, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 14, unknown conditional: 0, unknown unconditional: 14] , Statistics on independence cache: Total cache size (in pairs): 246, Positive cache size: 231, Positive conditional cache size: 0, Positive unconditional cache size: 231, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 19, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 246, Positive cache size: 231, Positive conditional cache size: 0, Positive unconditional cache size: 231, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 109 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 224 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 224 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 6 mSDtfsCounter, 324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=4, InterpolantAutomatonStates: 31, 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, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 286 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2022-12-13 11:59:56,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...