/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 11:57:57,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 11:57:57,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 11:57:57,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 11:57:57,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 11:57:57,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 11:57:57,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 11:57:57,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 11:57:57,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 11:57:57,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 11:57:57,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 11:57:57,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 11:57:57,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 11:57:57,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 11:57:57,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 11:57:57,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 11:57:57,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 11:57:57,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 11:57:57,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 11:57:57,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 11:57:57,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 11:57:57,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 11:57:57,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 11:57:57,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 11:57:57,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 11:57:57,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 11:57:57,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 11:57:57,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 11:57:57,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 11:57:57,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 11:57:57,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 11:57:57,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 11:57:57,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 11:57:57,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 11:57:57,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 11:57:57,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 11:57:57,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 11:57:57,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 11:57:57,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 11:57:57,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 11:57:57,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 11:57:57,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 11:57:57,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 11:57:57,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 11:57:57,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 11:57:57,330 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 11:57:57,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 11:57:57,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 11:57:57,331 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 11:57:57,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 11:57:57,332 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 11:57:57,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 11:57:57,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 11:57:57,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 11:57:57,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 11:57:57,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 11:57:57,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 11:57:57,333 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 11:57:57,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 11:57:57,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 11:57:57,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 11:57:57,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 11:57:57,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 11:57:57,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 11:57:57,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 11:57:57,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 11:57:57,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 11:57:57,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 11:57:57,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 11:57:57,334 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 11:57:57,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 11:57:57,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 11:57:57,334 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 11:57:57,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 11:57:57,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 11:57:57,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 11:57:57,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 11:57:57,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 11:57:57,585 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 11:57:57,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2022-12-12 11:57:58,567 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 11:57:58,848 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 11:57:58,848 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2022-12-12 11:57:58,857 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f355e7d0/375cb30983a1463f80c849b9988510fc/FLAGa3e8a7f5e [2022-12-12 11:57:58,868 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f355e7d0/375cb30983a1463f80c849b9988510fc [2022-12-12 11:57:58,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 11:57:58,870 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 11:57:58,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 11:57:58,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 11:57:58,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 11:57:58,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 11:57:58" (1/1) ... [2022-12-12 11:57:58,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60433407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:58, skipping insertion in model container [2022-12-12 11:57:58,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 11:57:58" (1/1) ... [2022-12-12 11:57:58,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 11:57:58,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 11:57:59,003 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/rfi000_tso.i[944,957] [2022-12-12 11:57:59,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 11:57:59,166 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 11:57:59,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i[944,957] [2022-12-12 11:57:59,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,212 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,212 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:57:59,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:57:59,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 11:57:59,257 INFO L208 MainTranslator]: Completed translation [2022-12-12 11:57:59,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59 WrapperNode [2022-12-12 11:57:59,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 11:57:59,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 11:57:59,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 11:57:59,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 11:57:59,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,317 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 164 [2022-12-12 11:57:59,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 11:57:59,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 11:57:59,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 11:57:59,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 11:57:59,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,346 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 11:57:59,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 11:57:59,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 11:57:59,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 11:57:59,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (1/1) ... [2022-12-12 11:57:59,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 11:57:59,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 11:57:59,421 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) [2022-12-12 11:57:59,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 11:57:59,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 11:57:59,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 11:57:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 11:57:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 11:57:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 11:57:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 11:57:59,483 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 11:57:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 11:57:59,483 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 11:57:59,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 11:57:59,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 11:57:59,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 11:57:59,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 11:57:59,485 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 11:57:59,598 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 11:57:59,599 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 11:57:59,863 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 11:58:00,008 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 11:58:00,008 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 11:58:00,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 11:58:00 BoogieIcfgContainer [2022-12-12 11:58:00,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 11:58:00,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 11:58:00,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 11:58:00,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 11:58:00,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 11:57:58" (1/3) ... [2022-12-12 11:58:00,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f31d624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 11:58:00, skipping insertion in model container [2022-12-12 11:58:00,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:57:59" (2/3) ... [2022-12-12 11:58:00,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f31d624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 11:58:00, skipping insertion in model container [2022-12-12 11:58:00,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 11:58:00" (3/3) ... [2022-12-12 11:58:00,020 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2022-12-12 11:58:00,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 11:58:00,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 11:58:00,033 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 11:58:00,071 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 11:58:00,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 190 flow [2022-12-12 11:58:00,130 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2022-12-12 11:58:00,131 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 11:58:00,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-12-12 11:58:00,134 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 90 transitions, 190 flow [2022-12-12 11:58:00,137 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 88 transitions, 182 flow [2022-12-12 11:58:00,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 11:58:00,148 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@45b71b27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 11:58:00,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-12 11:58:00,158 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-12-12 11:58:00,158 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 11:58:00,159 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:00,159 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:00,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:00,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:00,163 INFO L85 PathProgramCache]: Analyzing trace with hash -234242816, now seen corresponding path program 1 times [2022-12-12 11:58:00,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:00,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955435762] [2022-12-12 11:58:00,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:00,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:00,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:00,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:00,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955435762] [2022-12-12 11:58:00,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955435762] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:00,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:00,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 11:58:00,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508671253] [2022-12-12 11:58:00,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:00,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 11:58:00,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:00,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 11:58:00,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 11:58:00,638 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 90 [2022-12-12 11:58:00,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 88 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2022-12-12 11:58:00,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:00,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 90 [2022-12-12 11:58:00,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:00,701 INFO L130 PetriNetUnfolder]: 31/172 cut-off events. [2022-12-12 11:58:00,701 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 11:58:00,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 172 events. 31/172 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 528 event pairs, 3 based on Foata normal form. 13/175 useless extension candidates. Maximal degree in co-relation 201. Up to 53 conditions per place. [2022-12-12 11:58:00,704 INFO L137 encePairwiseOnDemand]: 85/90 looper letters, 11 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2022-12-12 11:58:00,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 87 transitions, 206 flow [2022-12-12 11:58:00,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 11:58:00,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 11:58:00,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2022-12-12 11:58:00,713 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2022-12-12 11:58:00,716 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 0 predicate places. [2022-12-12 11:58:00,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 87 transitions, 206 flow [2022-12-12 11:58:00,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 87 transitions, 202 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-12 11:58:00,720 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 202 flow [2022-12-12 11:58:00,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2022-12-12 11:58:00,720 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:00,721 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:00,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 11:58:00,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:00,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash 313066395, now seen corresponding path program 1 times [2022-12-12 11:58:00,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:00,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297124061] [2022-12-12 11:58:00,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:00,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:01,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:01,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297124061] [2022-12-12 11:58:01,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297124061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:01,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:01,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:58:01,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756051994] [2022-12-12 11:58:01,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:01,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:58:01,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:01,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:58:01,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:58:01,594 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 90 [2022-12-12 11:58:01,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 202 flow. Second operand has 7 states, 7 states have (on average 60.714285714285715) internal successors, (425), 7 states have internal predecessors, (425), 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) [2022-12-12 11:58:01,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:01,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 90 [2022-12-12 11:58:01,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:02,206 INFO L130 PetriNetUnfolder]: 395/1028 cut-off events. [2022-12-12 11:58:02,206 INFO L131 PetriNetUnfolder]: For 175/524 co-relation queries the response was YES. [2022-12-12 11:58:02,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 1028 events. 395/1028 cut-off events. For 175/524 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6086 event pairs, 76 based on Foata normal form. 2/992 useless extension candidates. Maximal degree in co-relation 2020. Up to 310 conditions per place. [2022-12-12 11:58:02,211 INFO L137 encePairwiseOnDemand]: 79/90 looper letters, 34 selfloop transitions, 7 changer transitions 69/159 dead transitions. [2022-12-12 11:58:02,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 159 transitions, 628 flow [2022-12-12 11:58:02,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 11:58:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 11:58:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 854 transitions. [2022-12-12 11:58:02,215 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7299145299145299 [2022-12-12 11:58:02,216 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 10 predicate places. [2022-12-12 11:58:02,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 159 transitions, 628 flow [2022-12-12 11:58:02,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 159 transitions, 550 flow, removed 39 selfloop flow, removed 0 redundant places. [2022-12-12 11:58:02,220 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 159 transitions, 550 flow [2022-12-12 11:58:02,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.714285714285715) internal successors, (425), 7 states have internal predecessors, (425), 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) [2022-12-12 11:58:02,221 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:02,221 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:02,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 11:58:02,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:02,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:02,222 INFO L85 PathProgramCache]: Analyzing trace with hash -576424391, now seen corresponding path program 1 times [2022-12-12 11:58:02,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:02,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144378585] [2022-12-12 11:58:02,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:02,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:02,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:02,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:02,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144378585] [2022-12-12 11:58:02,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144378585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:02,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:02,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:58:02,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40025860] [2022-12-12 11:58:02,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:02,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:58:02,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:02,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:58:02,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:58:02,779 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 90 [2022-12-12 11:58:02,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 159 transitions, 550 flow. Second operand has 7 states, 7 states have (on average 61.142857142857146) internal successors, (428), 7 states have internal predecessors, (428), 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) [2022-12-12 11:58:02,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:02,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 90 [2022-12-12 11:58:02,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:03,287 INFO L130 PetriNetUnfolder]: 441/1183 cut-off events. [2022-12-12 11:58:03,287 INFO L131 PetriNetUnfolder]: For 127/1033 co-relation queries the response was YES. [2022-12-12 11:58:03,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2853 conditions, 1183 events. 441/1183 cut-off events. For 127/1033 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7496 event pairs, 44 based on Foata normal form. 6/1158 useless extension candidates. Maximal degree in co-relation 2796. Up to 323 conditions per place. [2022-12-12 11:58:03,293 INFO L137 encePairwiseOnDemand]: 79/90 looper letters, 39 selfloop transitions, 8 changer transitions 143/239 dead transitions. [2022-12-12 11:58:03,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 239 transitions, 1236 flow [2022-12-12 11:58:03,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 11:58:03,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 11:58:03,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 850 transitions. [2022-12-12 11:58:03,296 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7264957264957265 [2022-12-12 11:58:03,297 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 22 predicate places. [2022-12-12 11:58:03,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 239 transitions, 1236 flow [2022-12-12 11:58:03,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 239 transitions, 1150 flow, removed 43 selfloop flow, removed 0 redundant places. [2022-12-12 11:58:03,302 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 239 transitions, 1150 flow [2022-12-12 11:58:03,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 61.142857142857146) internal successors, (428), 7 states have internal predecessors, (428), 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) [2022-12-12 11:58:03,303 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:03,303 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:03,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 11:58:03,303 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:03,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:03,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1960243916, now seen corresponding path program 1 times [2022-12-12 11:58:03,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:03,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998195757] [2022-12-12 11:58:03,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:03,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:04,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:04,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998195757] [2022-12-12 11:58:04,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998195757] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:04,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:04,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-12 11:58:04,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300190763] [2022-12-12 11:58:04,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:04,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-12 11:58:04,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:04,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-12 11:58:04,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-12 11:58:04,308 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2022-12-12 11:58:04,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 239 transitions, 1150 flow. Second operand has 13 states, 13 states have (on average 60.61538461538461) internal successors, (788), 13 states have internal predecessors, (788), 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) [2022-12-12 11:58:04,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:04,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2022-12-12 11:58:04,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:05,424 INFO L130 PetriNetUnfolder]: 1346/3437 cut-off events. [2022-12-12 11:58:05,424 INFO L131 PetriNetUnfolder]: For 1301/1718 co-relation queries the response was YES. [2022-12-12 11:58:05,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9034 conditions, 3437 events. 1346/3437 cut-off events. For 1301/1718 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 28329 event pairs, 76 based on Foata normal form. 27/3417 useless extension candidates. Maximal degree in co-relation 8976. Up to 689 conditions per place. [2022-12-12 11:58:05,435 INFO L137 encePairwiseOnDemand]: 76/90 looper letters, 73 selfloop transitions, 17 changer transitions 532/674 dead transitions. [2022-12-12 11:58:05,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 674 transitions, 4748 flow [2022-12-12 11:58:05,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-12 11:58:05,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-12 11:58:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2011 transitions. [2022-12-12 11:58:05,442 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7207885304659498 [2022-12-12 11:58:05,443 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 52 predicate places. [2022-12-12 11:58:05,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 674 transitions, 4748 flow [2022-12-12 11:58:05,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 674 transitions, 4654 flow, removed 45 selfloop flow, removed 2 redundant places. [2022-12-12 11:58:05,452 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 674 transitions, 4654 flow [2022-12-12 11:58:05,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.61538461538461) internal successors, (788), 13 states have internal predecessors, (788), 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) [2022-12-12 11:58:05,452 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:05,452 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:05,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 11:58:05,453 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:05,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:05,453 INFO L85 PathProgramCache]: Analyzing trace with hash -448628428, now seen corresponding path program 2 times [2022-12-12 11:58:05,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:05,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897635927] [2022-12-12 11:58:05,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:05,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:06,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:06,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897635927] [2022-12-12 11:58:06,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897635927] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:06,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:06,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-12 11:58:06,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868248768] [2022-12-12 11:58:06,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:06,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-12 11:58:06,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:06,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-12 11:58:06,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-12 11:58:06,342 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 90 [2022-12-12 11:58:06,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 674 transitions, 4654 flow. Second operand has 14 states, 14 states have (on average 59.57142857142857) internal successors, (834), 14 states have internal predecessors, (834), 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) [2022-12-12 11:58:06,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:06,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 90 [2022-12-12 11:58:06,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:07,704 INFO L130 PetriNetUnfolder]: 1774/4809 cut-off events. [2022-12-12 11:58:07,705 INFO L131 PetriNetUnfolder]: For 2309/3100 co-relation queries the response was YES. [2022-12-12 11:58:07,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14926 conditions, 4809 events. 1774/4809 cut-off events. For 2309/3100 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 44230 event pairs, 71 based on Foata normal form. 104/4874 useless extension candidates. Maximal degree in co-relation 14864. Up to 1001 conditions per place. [2022-12-12 11:58:07,717 INFO L137 encePairwiseOnDemand]: 74/90 looper letters, 76 selfloop transitions, 22 changer transitions 872/1021 dead transitions. [2022-12-12 11:58:07,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 1021 transitions, 9050 flow [2022-12-12 11:58:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-12 11:58:07,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-12 11:58:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1789 transitions. [2022-12-12 11:58:07,720 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.709920634920635 [2022-12-12 11:58:07,721 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 77 predicate places. [2022-12-12 11:58:07,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 1021 transitions, 9050 flow [2022-12-12 11:58:07,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 1021 transitions, 8898 flow, removed 64 selfloop flow, removed 7 redundant places. [2022-12-12 11:58:07,737 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 1021 transitions, 8898 flow [2022-12-12 11:58:07,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 59.57142857142857) internal successors, (834), 14 states have internal predecessors, (834), 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) [2022-12-12 11:58:07,737 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:07,738 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:07,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 11:58:07,738 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:07,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:07,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1217058792, now seen corresponding path program 1 times [2022-12-12 11:58:07,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:07,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736376426] [2022-12-12 11:58:07,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:07,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:09,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:09,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736376426] [2022-12-12 11:58:09,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736376426] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:09,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:09,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-12 11:58:09,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137400480] [2022-12-12 11:58:09,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:09,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-12 11:58:09,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:09,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-12 11:58:09,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-12-12 11:58:09,317 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 90 [2022-12-12 11:58:09,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 1021 transitions, 8898 flow. Second operand has 14 states, 14 states have (on average 61.642857142857146) internal successors, (863), 14 states have internal predecessors, (863), 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) [2022-12-12 11:58:09,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:09,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 90 [2022-12-12 11:58:09,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:10,762 INFO L130 PetriNetUnfolder]: 1837/5070 cut-off events. [2022-12-12 11:58:10,762 INFO L131 PetriNetUnfolder]: For 5119/5953 co-relation queries the response was YES. [2022-12-12 11:58:10,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17857 conditions, 5070 events. 1837/5070 cut-off events. For 5119/5953 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 48004 event pairs, 49 based on Foata normal form. 52/5080 useless extension candidates. Maximal degree in co-relation 17791. Up to 1942 conditions per place. [2022-12-12 11:58:10,786 INFO L137 encePairwiseOnDemand]: 75/90 looper letters, 70 selfloop transitions, 29 changer transitions 952/1114 dead transitions. [2022-12-12 11:58:10,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 1114 transitions, 11703 flow [2022-12-12 11:58:10,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-12 11:58:10,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-12 11:58:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1426 transitions. [2022-12-12 11:58:10,791 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7202020202020202 [2022-12-12 11:58:10,793 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 91 predicate places. [2022-12-12 11:58:10,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 1114 transitions, 11703 flow [2022-12-12 11:58:10,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 1114 transitions, 10734 flow, removed 460 selfloop flow, removed 8 redundant places. [2022-12-12 11:58:10,823 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 1114 transitions, 10734 flow [2022-12-12 11:58:10,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 61.642857142857146) internal successors, (863), 14 states have internal predecessors, (863), 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) [2022-12-12 11:58:10,823 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:10,824 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:10,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 11:58:10,824 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:10,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:10,824 INFO L85 PathProgramCache]: Analyzing trace with hash 2073325707, now seen corresponding path program 1 times [2022-12-12 11:58:10,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:10,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212963837] [2022-12-12 11:58:10,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:10,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:11,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:11,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:11,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212963837] [2022-12-12 11:58:11,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212963837] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:11,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:11,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 11:58:11,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966831053] [2022-12-12 11:58:11,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:11,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 11:58:11,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:11,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 11:58:11,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-12 11:58:11,261 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2022-12-12 11:58:11,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 1114 transitions, 10734 flow. Second operand has 10 states, 10 states have (on average 63.9) internal successors, (639), 10 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:58:11,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:11,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2022-12-12 11:58:11,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:11,763 INFO L130 PetriNetUnfolder]: 459/1208 cut-off events. [2022-12-12 11:58:11,763 INFO L131 PetriNetUnfolder]: For 3066/3239 co-relation queries the response was YES. [2022-12-12 11:58:11,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4727 conditions, 1208 events. 459/1208 cut-off events. For 3066/3239 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7037 event pairs, 54 based on Foata normal form. 19/1193 useless extension candidates. Maximal degree in co-relation 4665. Up to 448 conditions per place. [2022-12-12 11:58:11,768 INFO L137 encePairwiseOnDemand]: 77/90 looper letters, 56 selfloop transitions, 32 changer transitions 193/339 dead transitions. [2022-12-12 11:58:11,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 339 transitions, 3293 flow [2022-12-12 11:58:11,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-12 11:58:11,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-12 11:58:11,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1299 transitions. [2022-12-12 11:58:11,774 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7596491228070176 [2022-12-12 11:58:11,774 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 61 predicate places. [2022-12-12 11:58:11,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 339 transitions, 3293 flow [2022-12-12 11:58:11,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 339 transitions, 2465 flow, removed 389 selfloop flow, removed 8 redundant places. [2022-12-12 11:58:11,782 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 339 transitions, 2465 flow [2022-12-12 11:58:11,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.9) internal successors, (639), 10 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:58:11,783 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:11,783 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:11,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 11:58:11,784 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:11,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash 96110292, now seen corresponding path program 1 times [2022-12-12 11:58:11,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:11,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948477113] [2022-12-12 11:58:11,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:11,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:12,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:12,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:12,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948477113] [2022-12-12 11:58:12,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948477113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:12,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:12,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-12 11:58:12,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647436610] [2022-12-12 11:58:12,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:12,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 11:58:12,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:12,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 11:58:12,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-12 11:58:12,778 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 90 [2022-12-12 11:58:12,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 339 transitions, 2465 flow. Second operand has 11 states, 11 states have (on average 59.36363636363637) internal successors, (653), 11 states have internal predecessors, (653), 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) [2022-12-12 11:58:12,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:12,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 90 [2022-12-12 11:58:12,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:13,738 INFO L130 PetriNetUnfolder]: 783/2084 cut-off events. [2022-12-12 11:58:13,738 INFO L131 PetriNetUnfolder]: For 4640/5217 co-relation queries the response was YES. [2022-12-12 11:58:13,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7076 conditions, 2084 events. 783/2084 cut-off events. For 4640/5217 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 14822 event pairs, 69 based on Foata normal form. 150/2200 useless extension candidates. Maximal degree in co-relation 7007. Up to 653 conditions per place. [2022-12-12 11:58:13,744 INFO L137 encePairwiseOnDemand]: 74/90 looper letters, 44 selfloop transitions, 61 changer transitions 349/526 dead transitions. [2022-12-12 11:58:13,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 526 transitions, 5007 flow [2022-12-12 11:58:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-12 11:58:13,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-12 11:58:13,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1322 transitions. [2022-12-12 11:58:13,746 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6994708994708995 [2022-12-12 11:58:13,746 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 73 predicate places. [2022-12-12 11:58:13,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 526 transitions, 5007 flow [2022-12-12 11:58:13,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 526 transitions, 4743 flow, removed 120 selfloop flow, removed 1 redundant places. [2022-12-12 11:58:13,756 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 526 transitions, 4743 flow [2022-12-12 11:58:13,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 59.36363636363637) internal successors, (653), 11 states have internal predecessors, (653), 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) [2022-12-12 11:58:13,757 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:13,757 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:13,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 11:58:13,757 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:13,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:13,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1343015212, now seen corresponding path program 2 times [2022-12-12 11:58:13,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:13,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119470781] [2022-12-12 11:58:13,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:13,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:14,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:14,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119470781] [2022-12-12 11:58:14,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119470781] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:14,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:14,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-12 11:58:14,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915360867] [2022-12-12 11:58:14,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:14,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-12 11:58:14,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:14,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-12 11:58:14,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-12 11:58:14,749 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2022-12-12 11:58:14,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 526 transitions, 4743 flow. Second operand has 13 states, 13 states have (on average 63.69230769230769) internal successors, (828), 13 states have internal predecessors, (828), 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) [2022-12-12 11:58:14,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:14,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2022-12-12 11:58:14,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:15,721 INFO L130 PetriNetUnfolder]: 1021/2796 cut-off events. [2022-12-12 11:58:15,722 INFO L131 PetriNetUnfolder]: For 9567/10213 co-relation queries the response was YES. [2022-12-12 11:58:15,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10076 conditions, 2796 events. 1021/2796 cut-off events. For 9567/10213 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 21776 event pairs, 79 based on Foata normal form. 93/2832 useless extension candidates. Maximal degree in co-relation 10007. Up to 885 conditions per place. [2022-12-12 11:58:15,731 INFO L137 encePairwiseOnDemand]: 78/90 looper letters, 75 selfloop transitions, 50 changer transitions 475/678 dead transitions. [2022-12-12 11:58:15,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 678 transitions, 7335 flow [2022-12-12 11:58:15,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-12 11:58:15,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-12 11:58:15,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1272 transitions. [2022-12-12 11:58:15,735 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.743859649122807 [2022-12-12 11:58:15,735 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 90 predicate places. [2022-12-12 11:58:15,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 678 transitions, 7335 flow [2022-12-12 11:58:15,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 678 transitions, 7102 flow, removed 99 selfloop flow, removed 3 redundant places. [2022-12-12 11:58:15,750 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 678 transitions, 7102 flow [2022-12-12 11:58:15,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 63.69230769230769) internal successors, (828), 13 states have internal predecessors, (828), 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) [2022-12-12 11:58:15,751 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:15,751 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:15,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 11:58:15,751 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:15,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:15,751 INFO L85 PathProgramCache]: Analyzing trace with hash 731976242, now seen corresponding path program 3 times [2022-12-12 11:58:15,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:15,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571166818] [2022-12-12 11:58:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:15,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:15,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:15,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571166818] [2022-12-12 11:58:15,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571166818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:15,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:15,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:58:15,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293174075] [2022-12-12 11:58:15,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:15,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:58:15,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:15,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:58:15,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:58:15,913 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 90 [2022-12-12 11:58:15,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 678 transitions, 7102 flow. Second operand has 7 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 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) [2022-12-12 11:58:15,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:15,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 90 [2022-12-12 11:58:15,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:16,257 INFO L130 PetriNetUnfolder]: 716/1749 cut-off events. [2022-12-12 11:58:16,257 INFO L131 PetriNetUnfolder]: For 6099/6463 co-relation queries the response was YES. [2022-12-12 11:58:16,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7565 conditions, 1749 events. 716/1749 cut-off events. For 6099/6463 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 12565 event pairs, 7 based on Foata normal form. 94/1834 useless extension candidates. Maximal degree in co-relation 7502. Up to 475 conditions per place. [2022-12-12 11:58:16,263 INFO L137 encePairwiseOnDemand]: 81/90 looper letters, 47 selfloop transitions, 12 changer transitions 351/481 dead transitions. [2022-12-12 11:58:16,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 481 transitions, 5809 flow [2022-12-12 11:58:16,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 11:58:16,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 11:58:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 942 transitions. [2022-12-12 11:58:16,265 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8051282051282052 [2022-12-12 11:58:16,265 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 66 predicate places. [2022-12-12 11:58:16,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 481 transitions, 5809 flow [2022-12-12 11:58:16,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 481 transitions, 4942 flow, removed 401 selfloop flow, removed 5 redundant places. [2022-12-12 11:58:16,279 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 481 transitions, 4942 flow [2022-12-12 11:58:16,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 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) [2022-12-12 11:58:16,279 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:16,279 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:16,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 11:58:16,280 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:16,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:16,280 INFO L85 PathProgramCache]: Analyzing trace with hash 430371678, now seen corresponding path program 1 times [2022-12-12 11:58:16,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:16,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809263000] [2022-12-12 11:58:16,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:16,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:16,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:16,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809263000] [2022-12-12 11:58:16,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809263000] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:16,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:16,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:58:16,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124282815] [2022-12-12 11:58:16,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:16,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:58:16,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:16,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:58:16,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:58:16,725 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 90 [2022-12-12 11:58:16,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 481 transitions, 4942 flow. Second operand has 7 states, 7 states have (on average 61.857142857142854) internal successors, (433), 7 states have internal predecessors, (433), 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) [2022-12-12 11:58:16,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:16,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 90 [2022-12-12 11:58:16,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:17,046 INFO L130 PetriNetUnfolder]: 998/2534 cut-off events. [2022-12-12 11:58:17,046 INFO L131 PetriNetUnfolder]: For 9120/9838 co-relation queries the response was YES. [2022-12-12 11:58:17,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10124 conditions, 2534 events. 998/2534 cut-off events. For 9120/9838 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 20425 event pairs, 8 based on Foata normal form. 304/2816 useless extension candidates. Maximal degree in co-relation 10052. Up to 708 conditions per place. [2022-12-12 11:58:17,055 INFO L137 encePairwiseOnDemand]: 82/90 looper letters, 26 selfloop transitions, 4 changer transitions 508/588 dead transitions. [2022-12-12 11:58:17,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 588 transitions, 7116 flow [2022-12-12 11:58:17,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 11:58:17,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 11:58:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2022-12-12 11:58:17,056 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2022-12-12 11:58:17,056 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 67 predicate places. [2022-12-12 11:58:17,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 588 transitions, 7116 flow [2022-12-12 11:58:17,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 588 transitions, 6705 flow, removed 170 selfloop flow, removed 3 redundant places. [2022-12-12 11:58:17,077 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 588 transitions, 6705 flow [2022-12-12 11:58:17,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 61.857142857142854) internal successors, (433), 7 states have internal predecessors, (433), 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) [2022-12-12 11:58:17,078 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:58:17,078 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:58:17,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 11:58:17,078 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:58:17,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:58:17,078 INFO L85 PathProgramCache]: Analyzing trace with hash 649972736, now seen corresponding path program 2 times [2022-12-12 11:58:17,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:58:17,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537128916] [2022-12-12 11:58:17,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:58:17,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:58:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:58:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:58:18,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:58:18,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537128916] [2022-12-12 11:58:18,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537128916] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:58:18,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:58:18,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-12 11:58:18,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052465866] [2022-12-12 11:58:18,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:58:18,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-12 11:58:18,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:58:18,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-12 11:58:18,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-12-12 11:58:18,575 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2022-12-12 11:58:18,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 588 transitions, 6705 flow. Second operand has 15 states, 15 states have (on average 60.733333333333334) internal successors, (911), 15 states have internal predecessors, (911), 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) [2022-12-12 11:58:18,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:58:18,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2022-12-12 11:58:18,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:58:19,285 INFO L130 PetriNetUnfolder]: 1307/3531 cut-off events. [2022-12-12 11:58:19,286 INFO L131 PetriNetUnfolder]: For 13217/13576 co-relation queries the response was YES. [2022-12-12 11:58:19,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14255 conditions, 3531 events. 1307/3531 cut-off events. For 13217/13576 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 31926 event pairs, 10 based on Foata normal form. 152/3668 useless extension candidates. Maximal degree in co-relation 14182. Up to 996 conditions per place. [2022-12-12 11:58:19,298 INFO L137 encePairwiseOnDemand]: 77/90 looper letters, 0 selfloop transitions, 0 changer transitions 738/738 dead transitions. [2022-12-12 11:58:19,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 738 transitions, 9993 flow [2022-12-12 11:58:19,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 11:58:19,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 11:58:19,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 813 transitions. [2022-12-12 11:58:19,300 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6948717948717948 [2022-12-12 11:58:19,300 INFO L295 CegarLoopForPetriNet]: 93 programPoint places, 74 predicate places. [2022-12-12 11:58:19,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 738 transitions, 9993 flow [2022-12-12 11:58:19,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 738 transitions, 9682 flow, removed 134 selfloop flow, removed 4 redundant places. [2022-12-12 11:58:19,327 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 738 transitions, 9682 flow [2022-12-12 11:58:19,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 60.733333333333334) internal successors, (911), 15 states have internal predecessors, (911), 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) [2022-12-12 11:58:19,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-12 11:58:19,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-12 11:58:19,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-12 11:58:19,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-12 11:58:19,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-12 11:58:19,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 11:58:19,331 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1] [2022-12-12 11:58:19,334 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 11:58:19,334 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 11:58:19,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 11:58:19 BasicIcfg [2022-12-12 11:58:19,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 11:58:19,338 INFO L158 Benchmark]: Toolchain (without parser) took 20467.40ms. Allocated memory was 202.4MB in the beginning and 1.0GB in the end (delta: 804.3MB). Free memory was 176.9MB in the beginning and 555.5MB in the end (delta: -378.6MB). Peak memory consumption was 427.2MB. Max. memory is 8.0GB. [2022-12-12 11:58:19,338 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 202.4MB. Free memory is still 178.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 11:58:19,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.55ms. Allocated memory is still 202.4MB. Free memory was 176.9MB in the beginning and 149.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-12 11:58:19,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.49ms. Allocated memory is still 202.4MB. Free memory was 149.6MB in the beginning and 145.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-12 11:58:19,339 INFO L158 Benchmark]: Boogie Preprocessor took 48.09ms. Allocated memory is still 202.4MB. Free memory was 145.9MB in the beginning and 143.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 11:58:19,339 INFO L158 Benchmark]: RCFGBuilder took 644.16ms. Allocated memory is still 202.4MB. Free memory was 143.9MB in the beginning and 98.8MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2022-12-12 11:58:19,339 INFO L158 Benchmark]: TraceAbstraction took 19324.63ms. Allocated memory was 202.4MB in the beginning and 1.0GB in the end (delta: 804.3MB). Free memory was 97.7MB in the beginning and 555.5MB in the end (delta: -457.8MB). Peak memory consumption was 347.5MB. Max. memory is 8.0GB. [2022-12-12 11:58:19,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 202.4MB. Free memory is still 178.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 386.55ms. Allocated memory is still 202.4MB. Free memory was 176.9MB in the beginning and 149.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.49ms. Allocated memory is still 202.4MB. Free memory was 149.6MB in the beginning and 145.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.09ms. Allocated memory is still 202.4MB. Free memory was 145.9MB in the beginning and 143.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 644.16ms. Allocated memory is still 202.4MB. Free memory was 143.9MB in the beginning and 98.8MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. * TraceAbstraction took 19324.63ms. Allocated memory was 202.4MB in the beginning and 1.0GB in the end (delta: 804.3MB). Free memory was 97.7MB in the beginning and 555.5MB in the end (delta: -457.8MB). Peak memory consumption was 347.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - 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 5 procedures, 110 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.2s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.2s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1154 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1154 mSDsluCounter, 1342 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1090 mSDsCounter, 184 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2767 IncrementalHoareTripleChecker+Invalid, 2951 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 184 mSolverCounterUnsat, 252 mSDtfsCounter, 2767 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 252 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10734occurred in iteration=6, InterpolantAutomatonStates: 202, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 4297 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 774 NumberOfCodeBlocks, 774 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 762 ConstructedInterpolants, 0 QuantifiedInterpolants, 5812 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 11:58:19,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...