/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-series.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 04:30:05,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 04:30:05,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 04:30:05,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 04:30:05,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 04:30:05,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 04:30:05,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 04:30:05,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 04:30:05,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 04:30:05,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 04:30:05,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 04:30:05,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 04:30:05,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 04:30:05,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 04:30:05,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 04:30:05,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 04:30:05,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 04:30:05,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 04:30:05,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 04:30:05,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 04:30:05,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 04:30:05,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 04:30:05,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 04:30:05,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 04:30:05,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 04:30:05,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 04:30:05,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 04:30:05,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 04:30:05,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 04:30:05,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 04:30:05,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 04:30:05,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 04:30:05,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 04:30:05,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 04:30:05,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 04:30:05,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 04:30:05,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 04:30:05,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 04:30:05,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 04:30:05,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 04:30:05,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 04:30:05,184 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-VariableLbe.epf [2023-01-28 04:30:05,215 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 04:30:05,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 04:30:05,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 04:30:05,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 04:30:05,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 04:30:05,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 04:30:05,218 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 04:30:05,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 04:30:05,218 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 04:30:05,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 04:30:05,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 04:30:05,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 04:30:05,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 04:30:05,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 04:30:05,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 04:30:05,219 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 04:30:05,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 04:30:05,219 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 04:30:05,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 04:30:05,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 04:30:05,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 04:30:05,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 04:30:05,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 04:30:05,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 04:30:05,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 04:30:05,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 04:30:05,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 04:30:05,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 04:30:05,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 04:30:05,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 04:30:05,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 04:30:05,221 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 04:30:05,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 04:30:05,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 04:30:05,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 04:30:05,486 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 04:30:05,486 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 04:30:05,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-series.wvr.c [2023-01-28 04:30:06,654 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 04:30:06,853 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 04:30:06,853 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-series.wvr.c [2023-01-28 04:30:06,862 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66ea08a62/2dc2e0ca9c2445b2ad20de62f79e4481/FLAGc09f8f5c4 [2023-01-28 04:30:06,879 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66ea08a62/2dc2e0ca9c2445b2ad20de62f79e4481 [2023-01-28 04:30:06,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 04:30:06,883 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 04:30:06,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 04:30:06,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 04:30:06,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 04:30:06,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 04:30:06" (1/1) ... [2023-01-28 04:30:06,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f4aff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:06, skipping insertion in model container [2023-01-28 04:30:06,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 04:30:06" (1/1) ... [2023-01-28 04:30:06,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 04:30:06,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 04:30:07,068 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-series.wvr.c[4351,4364] [2023-01-28 04:30:07,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 04:30:07,085 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 04:30:07,118 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-series.wvr.c[4351,4364] [2023-01-28 04:30:07,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 04:30:07,129 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 04:30:07,130 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 04:30:07,136 INFO L208 MainTranslator]: Completed translation [2023-01-28 04:30:07,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07 WrapperNode [2023-01-28 04:30:07,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 04:30:07,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 04:30:07,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 04:30:07,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 04:30:07,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,182 INFO L138 Inliner]: procedures = 27, calls = 87, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 358 [2023-01-28 04:30:07,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 04:30:07,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 04:30:07,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 04:30:07,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 04:30:07,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 04:30:07,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 04:30:07,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 04:30:07,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 04:30:07,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (1/1) ... [2023-01-28 04:30:07,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 04:30:07,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:30:07,256 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) [2023-01-28 04:30:07,273 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 [2023-01-28 04:30:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 04:30:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 04:30:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 04:30:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 04:30:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 04:30:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 04:30:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 04:30:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 04:30:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 04:30:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 04:30:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-01-28 04:30:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-01-28 04:30:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 04:30:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 04:30:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 04:30:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 04:30:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 04:30:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 04:30:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 04:30:07,324 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 04:30:07,440 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 04:30:07,441 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 04:30:07,903 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 04:30:08,097 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 04:30:08,098 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-01-28 04:30:08,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 04:30:08 BoogieIcfgContainer [2023-01-28 04:30:08,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 04:30:08,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 04:30:08,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 04:30:08,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 04:30:08,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 04:30:06" (1/3) ... [2023-01-28 04:30:08,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6632794d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 04:30:08, skipping insertion in model container [2023-01-28 04:30:08,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:30:07" (2/3) ... [2023-01-28 04:30:08,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6632794d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 04:30:08, skipping insertion in model container [2023-01-28 04:30:08,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 04:30:08" (3/3) ... [2023-01-28 04:30:08,107 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series.wvr.c [2023-01-28 04:30:08,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 04:30:08,122 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 04:30:08,122 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 04:30:08,207 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-28 04:30:08,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 244 places, 253 transitions, 538 flow [2023-01-28 04:30:08,355 INFO L130 PetriNetUnfolder]: 22/249 cut-off events. [2023-01-28 04:30:08,356 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 04:30:08,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 249 events. 22/249 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 140 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 212. Up to 2 conditions per place. [2023-01-28 04:30:08,362 INFO L82 GeneralOperation]: Start removeDead. Operand has 244 places, 253 transitions, 538 flow [2023-01-28 04:30:08,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 237 transitions, 498 flow [2023-01-28 04:30:08,373 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 04:30:08,381 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 237 transitions, 498 flow [2023-01-28 04:30:08,383 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 237 transitions, 498 flow [2023-01-28 04:30:08,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 237 transitions, 498 flow [2023-01-28 04:30:08,442 INFO L130 PetriNetUnfolder]: 22/237 cut-off events. [2023-01-28 04:30:08,443 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 04:30:08,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 237 events. 22/237 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 139 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 212. Up to 2 conditions per place. [2023-01-28 04:30:08,448 INFO L119 LiptonReduction]: Number of co-enabled transitions 2000 [2023-01-28 04:30:16,660 INFO L134 LiptonReduction]: Checked pairs total: 4059 [2023-01-28 04:30:16,660 INFO L136 LiptonReduction]: Total number of compositions: 236 [2023-01-28 04:30:16,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 04:30:16,677 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;@33ac7484, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 04:30:16,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 04:30:16,683 INFO L130 PetriNetUnfolder]: 7/38 cut-off events. [2023-01-28 04:30:16,683 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 04:30:16,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:16,684 INFO L208 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] [2023-01-28 04:30:16,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:16,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:16,688 INFO L85 PathProgramCache]: Analyzing trace with hash -823670804, now seen corresponding path program 1 times [2023-01-28 04:30:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:16,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329819696] [2023-01-28 04:30:16,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:16,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:30:17,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:17,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329819696] [2023-01-28 04:30:17,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329819696] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:17,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:30:17,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 04:30:17,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796196678] [2023-01-28 04:30:17,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:17,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 04:30:17,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:17,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 04:30:17,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 04:30:17,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 489 [2023-01-28 04:30:17,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 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) [2023-01-28 04:30:17,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:17,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 489 [2023-01-28 04:30:17,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:17,772 INFO L130 PetriNetUnfolder]: 2607/3584 cut-off events. [2023-01-28 04:30:17,772 INFO L131 PetriNetUnfolder]: For 189/189 co-relation queries the response was YES. [2023-01-28 04:30:17,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7119 conditions, 3584 events. 2607/3584 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 16023 event pairs, 498 based on Foata normal form. 1/2296 useless extension candidates. Maximal degree in co-relation 5886. Up to 2275 conditions per place. [2023-01-28 04:30:17,796 INFO L137 encePairwiseOnDemand]: 485/489 looper letters, 49 selfloop transitions, 3 changer transitions 1/59 dead transitions. [2023-01-28 04:30:17,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 59 transitions, 263 flow [2023-01-28 04:30:17,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 04:30:17,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 04:30:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 717 transitions. [2023-01-28 04:30:17,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4887525562372188 [2023-01-28 04:30:17,817 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 717 transitions. [2023-01-28 04:30:17,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 717 transitions. [2023-01-28 04:30:17,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:17,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 717 transitions. [2023-01-28 04:30:17,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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) [2023-01-28 04:30:17,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 489.0) internal successors, (1956), 4 states have internal predecessors, (1956), 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) [2023-01-28 04:30:17,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 489.0) internal successors, (1956), 4 states have internal predecessors, (1956), 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) [2023-01-28 04:30:17,841 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 102 flow. Second operand 3 states and 717 transitions. [2023-01-28 04:30:17,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 59 transitions, 263 flow [2023-01-28 04:30:17,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 59 transitions, 237 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-01-28 04:30:17,853 INFO L231 Difference]: Finished difference. Result has 40 places, 41 transitions, 105 flow [2023-01-28 04:30:17,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=40, PETRI_TRANSITIONS=41} [2023-01-28 04:30:17,863 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -5 predicate places. [2023-01-28 04:30:17,863 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 41 transitions, 105 flow [2023-01-28 04:30:17,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 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) [2023-01-28 04:30:17,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:17,864 INFO L208 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] [2023-01-28 04:30:17,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 04:30:17,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:17,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:17,866 INFO L85 PathProgramCache]: Analyzing trace with hash 723466093, now seen corresponding path program 1 times [2023-01-28 04:30:17,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:17,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245732582] [2023-01-28 04:30:17,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:17,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:30:18,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:18,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245732582] [2023-01-28 04:30:18,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245732582] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:18,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:30:18,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 04:30:18,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561543523] [2023-01-28 04:30:18,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:18,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 04:30:18,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:18,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 04:30:18,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 04:30:18,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 489 [2023-01-28 04:30:18,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 41 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 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) [2023-01-28 04:30:18,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:18,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 489 [2023-01-28 04:30:18,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:18,503 INFO L130 PetriNetUnfolder]: 3844/5077 cut-off events. [2023-01-28 04:30:18,503 INFO L131 PetriNetUnfolder]: For 756/756 co-relation queries the response was YES. [2023-01-28 04:30:18,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11208 conditions, 5077 events. 3844/5077 cut-off events. For 756/756 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 22753 event pairs, 982 based on Foata normal form. 120/4244 useless extension candidates. Maximal degree in co-relation 4019. Up to 3577 conditions per place. [2023-01-28 04:30:18,535 INFO L137 encePairwiseOnDemand]: 486/489 looper letters, 60 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2023-01-28 04:30:18,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 66 transitions, 293 flow [2023-01-28 04:30:18,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 04:30:18,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 04:30:18,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 711 transitions. [2023-01-28 04:30:18,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48466257668711654 [2023-01-28 04:30:18,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 711 transitions. [2023-01-28 04:30:18,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 711 transitions. [2023-01-28 04:30:18,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:18,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 711 transitions. [2023-01-28 04:30:18,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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) [2023-01-28 04:30:18,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 489.0) internal successors, (1956), 4 states have internal predecessors, (1956), 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) [2023-01-28 04:30:18,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 489.0) internal successors, (1956), 4 states have internal predecessors, (1956), 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) [2023-01-28 04:30:18,543 INFO L175 Difference]: Start difference. First operand has 40 places, 41 transitions, 105 flow. Second operand 3 states and 711 transitions. [2023-01-28 04:30:18,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 66 transitions, 293 flow [2023-01-28 04:30:18,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 66 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 04:30:18,546 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 116 flow [2023-01-28 04:30:18,546 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2023-01-28 04:30:18,547 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places. [2023-01-28 04:30:18,547 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 116 flow [2023-01-28 04:30:18,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 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) [2023-01-28 04:30:18,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:18,548 INFO L208 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] [2023-01-28 04:30:18,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 04:30:18,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:18,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:18,551 INFO L85 PathProgramCache]: Analyzing trace with hash -885024255, now seen corresponding path program 1 times [2023-01-28 04:30:18,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:18,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402759790] [2023-01-28 04:30:18,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:18,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:30:18,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:18,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402759790] [2023-01-28 04:30:18,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402759790] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:18,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:30:18,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 04:30:18,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482383130] [2023-01-28 04:30:18,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:18,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 04:30:18,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:18,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 04:30:18,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 04:30:18,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 489 [2023-01-28 04:30:18,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 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) [2023-01-28 04:30:18,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:18,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 489 [2023-01-28 04:30:18,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:19,179 INFO L130 PetriNetUnfolder]: 3601/4881 cut-off events. [2023-01-28 04:30:19,179 INFO L131 PetriNetUnfolder]: For 1832/1832 co-relation queries the response was YES. [2023-01-28 04:30:19,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11395 conditions, 4881 events. 3601/4881 cut-off events. For 1832/1832 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 23217 event pairs, 937 based on Foata normal form. 106/4546 useless extension candidates. Maximal degree in co-relation 8167. Up to 3548 conditions per place. [2023-01-28 04:30:19,204 INFO L137 encePairwiseOnDemand]: 486/489 looper letters, 60 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2023-01-28 04:30:19,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 66 transitions, 309 flow [2023-01-28 04:30:19,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 04:30:19,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 04:30:19,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 709 transitions. [2023-01-28 04:30:19,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4832992501704158 [2023-01-28 04:30:19,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 709 transitions. [2023-01-28 04:30:19,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 709 transitions. [2023-01-28 04:30:19,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:19,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 709 transitions. [2023-01-28 04:30:19,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 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) [2023-01-28 04:30:19,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 489.0) internal successors, (1956), 4 states have internal predecessors, (1956), 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) [2023-01-28 04:30:19,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 489.0) internal successors, (1956), 4 states have internal predecessors, (1956), 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) [2023-01-28 04:30:19,213 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 116 flow. Second operand 3 states and 709 transitions. [2023-01-28 04:30:19,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 66 transitions, 309 flow [2023-01-28 04:30:19,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 66 transitions, 306 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 04:30:19,216 INFO L231 Difference]: Finished difference. Result has 44 places, 43 transitions, 128 flow [2023-01-28 04:30:19,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=44, PETRI_TRANSITIONS=43} [2023-01-28 04:30:19,218 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2023-01-28 04:30:19,220 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 43 transitions, 128 flow [2023-01-28 04:30:19,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 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) [2023-01-28 04:30:19,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:19,221 INFO L208 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] [2023-01-28 04:30:19,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 04:30:19,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:19,222 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:19,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1988951730, now seen corresponding path program 1 times [2023-01-28 04:30:19,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:19,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915123190] [2023-01-28 04:30:19,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:19,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:30:19,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:19,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915123190] [2023-01-28 04:30:19,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915123190] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:19,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:30:19,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 04:30:19,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690114069] [2023-01-28 04:30:19,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:19,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 04:30:19,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:19,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 04:30:19,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 04:30:19,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 489 [2023-01-28 04:30:19,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 43 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 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) [2023-01-28 04:30:19,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:19,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 489 [2023-01-28 04:30:19,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:19,865 INFO L130 PetriNetUnfolder]: 3191/4597 cut-off events. [2023-01-28 04:30:19,865 INFO L131 PetriNetUnfolder]: For 2513/2513 co-relation queries the response was YES. [2023-01-28 04:30:19,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11225 conditions, 4597 events. 3191/4597 cut-off events. For 2513/2513 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 24355 event pairs, 2374 based on Foata normal form. 95/4561 useless extension candidates. Maximal degree in co-relation 5018. Up to 3497 conditions per place. [2023-01-28 04:30:19,890 INFO L137 encePairwiseOnDemand]: 485/489 looper letters, 65 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2023-01-28 04:30:19,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 74 transitions, 349 flow [2023-01-28 04:30:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 04:30:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 04:30:19,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 811 transitions. [2023-01-28 04:30:19,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41462167689161555 [2023-01-28 04:30:19,893 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 811 transitions. [2023-01-28 04:30:19,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 811 transitions. [2023-01-28 04:30:19,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:19,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 811 transitions. [2023-01-28 04:30:19,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 202.75) internal successors, (811), 4 states have internal predecessors, (811), 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) [2023-01-28 04:30:19,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 489.0) internal successors, (2445), 5 states have internal predecessors, (2445), 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) [2023-01-28 04:30:19,899 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 489.0) internal successors, (2445), 5 states have internal predecessors, (2445), 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) [2023-01-28 04:30:19,899 INFO L175 Difference]: Start difference. First operand has 44 places, 43 transitions, 128 flow. Second operand 4 states and 811 transitions. [2023-01-28 04:30:19,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 74 transitions, 349 flow [2023-01-28 04:30:19,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 74 transitions, 346 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 04:30:19,902 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 146 flow [2023-01-28 04:30:19,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2023-01-28 04:30:19,903 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 3 predicate places. [2023-01-28 04:30:19,903 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 146 flow [2023-01-28 04:30:19,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 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) [2023-01-28 04:30:19,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:19,904 INFO L208 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] [2023-01-28 04:30:19,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 04:30:19,904 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:19,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:19,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1525607470, now seen corresponding path program 1 times [2023-01-28 04:30:19,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:19,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839012658] [2023-01-28 04:30:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:19,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:20,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:30:20,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:20,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839012658] [2023-01-28 04:30:20,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839012658] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:20,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:30:20,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 04:30:20,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382091589] [2023-01-28 04:30:20,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:20,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 04:30:20,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:20,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 04:30:20,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 04:30:20,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 489 [2023-01-28 04:30:20,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 146 flow. Second operand has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 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) [2023-01-28 04:30:20,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:20,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 489 [2023-01-28 04:30:20,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:20,599 INFO L130 PetriNetUnfolder]: 3933/5811 cut-off events. [2023-01-28 04:30:20,599 INFO L131 PetriNetUnfolder]: For 3196/3196 co-relation queries the response was YES. [2023-01-28 04:30:20,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13895 conditions, 5811 events. 3933/5811 cut-off events. For 3196/3196 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 33531 event pairs, 3012 based on Foata normal form. 166/5823 useless extension candidates. Maximal degree in co-relation 11262. Up to 4410 conditions per place. [2023-01-28 04:30:20,630 INFO L137 encePairwiseOnDemand]: 485/489 looper letters, 64 selfloop transitions, 4 changer transitions 0/74 dead transitions. [2023-01-28 04:30:20,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 74 transitions, 364 flow [2023-01-28 04:30:20,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 04:30:20,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 04:30:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 809 transitions. [2023-01-28 04:30:20,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41359918200408996 [2023-01-28 04:30:20,633 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 809 transitions. [2023-01-28 04:30:20,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 809 transitions. [2023-01-28 04:30:20,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:20,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 809 transitions. [2023-01-28 04:30:20,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 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) [2023-01-28 04:30:20,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 489.0) internal successors, (2445), 5 states have internal predecessors, (2445), 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) [2023-01-28 04:30:20,639 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 489.0) internal successors, (2445), 5 states have internal predecessors, (2445), 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) [2023-01-28 04:30:20,639 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 146 flow. Second operand 4 states and 809 transitions. [2023-01-28 04:30:20,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 74 transitions, 364 flow [2023-01-28 04:30:20,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 74 transitions, 360 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 04:30:20,644 INFO L231 Difference]: Finished difference. Result has 52 places, 47 transitions, 165 flow [2023-01-28 04:30:20,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=52, PETRI_TRANSITIONS=47} [2023-01-28 04:30:20,647 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 7 predicate places. [2023-01-28 04:30:20,647 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 47 transitions, 165 flow [2023-01-28 04:30:20,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 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) [2023-01-28 04:30:20,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:20,648 INFO L208 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] [2023-01-28 04:30:20,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 04:30:20,648 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:20,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:20,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1648494691, now seen corresponding path program 1 times [2023-01-28 04:30:20,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:20,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492210795] [2023-01-28 04:30:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:20,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:20,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 04:30:20,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:20,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492210795] [2023-01-28 04:30:20,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492210795] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:20,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:30:20,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 04:30:20,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348947535] [2023-01-28 04:30:20,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:20,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 04:30:20,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:20,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 04:30:20,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-01-28 04:30:20,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 489 [2023-01-28 04:30:20,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 47 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 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) [2023-01-28 04:30:20,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:20,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 489 [2023-01-28 04:30:20,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:23,114 INFO L130 PetriNetUnfolder]: 18637/25918 cut-off events. [2023-01-28 04:30:23,114 INFO L131 PetriNetUnfolder]: For 7718/7718 co-relation queries the response was YES. [2023-01-28 04:30:23,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59121 conditions, 25918 events. 18637/25918 cut-off events. For 7718/7718 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 143382 event pairs, 7054 based on Foata normal form. 292/26200 useless extension candidates. Maximal degree in co-relation 41583. Up to 9757 conditions per place. [2023-01-28 04:30:23,222 INFO L137 encePairwiseOnDemand]: 482/489 looper letters, 123 selfloop transitions, 7 changer transitions 0/130 dead transitions. [2023-01-28 04:30:23,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 130 transitions, 663 flow [2023-01-28 04:30:23,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 04:30:23,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 04:30:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1167 transitions. [2023-01-28 04:30:23,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39775051124744376 [2023-01-28 04:30:23,226 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1167 transitions. [2023-01-28 04:30:23,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1167 transitions. [2023-01-28 04:30:23,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:23,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1167 transitions. [2023-01-28 04:30:23,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.5) internal successors, (1167), 6 states have internal predecessors, (1167), 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) [2023-01-28 04:30:23,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 489.0) internal successors, (3423), 7 states have internal predecessors, (3423), 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) [2023-01-28 04:30:23,234 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 489.0) internal successors, (3423), 7 states have internal predecessors, (3423), 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) [2023-01-28 04:30:23,235 INFO L175 Difference]: Start difference. First operand has 52 places, 47 transitions, 165 flow. Second operand 6 states and 1167 transitions. [2023-01-28 04:30:23,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 130 transitions, 663 flow [2023-01-28 04:30:23,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 130 transitions, 658 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 04:30:23,240 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 204 flow [2023-01-28 04:30:23,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=204, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2023-01-28 04:30:23,241 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 15 predicate places. [2023-01-28 04:30:23,241 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 204 flow [2023-01-28 04:30:23,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 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) [2023-01-28 04:30:23,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:23,242 INFO L208 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] [2023-01-28 04:30:23,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 04:30:23,242 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:23,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:23,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1291535771, now seen corresponding path program 1 times [2023-01-28 04:30:23,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:23,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129407162] [2023-01-28 04:30:23,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:23,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:23,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 04:30:23,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:23,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129407162] [2023-01-28 04:30:23,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129407162] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:23,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:30:23,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 04:30:23,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459546026] [2023-01-28 04:30:23,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:23,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 04:30:23,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:23,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 04:30:23,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-01-28 04:30:23,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 489 [2023-01-28 04:30:23,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 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) [2023-01-28 04:30:23,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:23,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 489 [2023-01-28 04:30:23,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:25,287 INFO L130 PetriNetUnfolder]: 17505/24308 cut-off events. [2023-01-28 04:30:25,287 INFO L131 PetriNetUnfolder]: For 10699/10699 co-relation queries the response was YES. [2023-01-28 04:30:25,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58510 conditions, 24308 events. 17505/24308 cut-off events. For 10699/10699 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 132591 event pairs, 8084 based on Foata normal form. 192/24496 useless extension candidates. Maximal degree in co-relation 43832. Up to 11795 conditions per place. [2023-01-28 04:30:25,378 INFO L137 encePairwiseOnDemand]: 482/489 looper letters, 75 selfloop transitions, 5 changer transitions 37/117 dead transitions. [2023-01-28 04:30:25,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 117 transitions, 624 flow [2023-01-28 04:30:25,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 04:30:25,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 04:30:25,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1156 transitions. [2023-01-28 04:30:25,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3940013633265167 [2023-01-28 04:30:25,382 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1156 transitions. [2023-01-28 04:30:25,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1156 transitions. [2023-01-28 04:30:25,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:25,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1156 transitions. [2023-01-28 04:30:25,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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) [2023-01-28 04:30:25,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 489.0) internal successors, (3423), 7 states have internal predecessors, (3423), 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) [2023-01-28 04:30:25,390 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 489.0) internal successors, (3423), 7 states have internal predecessors, (3423), 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) [2023-01-28 04:30:25,390 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 204 flow. Second operand 6 states and 1156 transitions. [2023-01-28 04:30:25,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 117 transitions, 624 flow [2023-01-28 04:30:25,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 117 transitions, 619 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 04:30:25,401 INFO L231 Difference]: Finished difference. Result has 67 places, 50 transitions, 211 flow [2023-01-28 04:30:25,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=211, PETRI_PLACES=67, PETRI_TRANSITIONS=50} [2023-01-28 04:30:25,402 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 22 predicate places. [2023-01-28 04:30:25,403 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 50 transitions, 211 flow [2023-01-28 04:30:25,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 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) [2023-01-28 04:30:25,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:25,403 INFO L208 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] [2023-01-28 04:30:25,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 04:30:25,404 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:25,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:25,404 INFO L85 PathProgramCache]: Analyzing trace with hash 838533375, now seen corresponding path program 1 times [2023-01-28 04:30:25,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:25,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464339706] [2023-01-28 04:30:25,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:25,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:25,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:30:25,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:25,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464339706] [2023-01-28 04:30:25,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464339706] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:25,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:30:25,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 04:30:25,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874663134] [2023-01-28 04:30:25,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:25,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 04:30:25,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:25,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 04:30:25,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-01-28 04:30:25,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 489 [2023-01-28 04:30:25,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 50 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 176.66666666666666) internal successors, (1060), 6 states have internal predecessors, (1060), 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) [2023-01-28 04:30:25,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:25,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 489 [2023-01-28 04:30:25,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:27,372 INFO L130 PetriNetUnfolder]: 15039/20526 cut-off events. [2023-01-28 04:30:27,372 INFO L131 PetriNetUnfolder]: For 12445/12445 co-relation queries the response was YES. [2023-01-28 04:30:27,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53424 conditions, 20526 events. 15039/20526 cut-off events. For 12445/12445 co-relation queries the response was YES. Maximal size of possible extension queue 609. Compared 102850 event pairs, 3884 based on Foata normal form. 1176/21698 useless extension candidates. Maximal degree in co-relation 41946. Up to 9784 conditions per place. [2023-01-28 04:30:27,436 INFO L137 encePairwiseOnDemand]: 481/489 looper letters, 104 selfloop transitions, 9 changer transitions 11/124 dead transitions. [2023-01-28 04:30:27,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 124 transitions, 721 flow [2023-01-28 04:30:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 04:30:27,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 04:30:27,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1302 transitions. [2023-01-28 04:30:27,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3803680981595092 [2023-01-28 04:30:27,440 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1302 transitions. [2023-01-28 04:30:27,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1302 transitions. [2023-01-28 04:30:27,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:27,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1302 transitions. [2023-01-28 04:30:27,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 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) [2023-01-28 04:30:27,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 489.0) internal successors, (3912), 8 states have internal predecessors, (3912), 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) [2023-01-28 04:30:27,448 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 489.0) internal successors, (3912), 8 states have internal predecessors, (3912), 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) [2023-01-28 04:30:27,448 INFO L175 Difference]: Start difference. First operand has 67 places, 50 transitions, 211 flow. Second operand 7 states and 1302 transitions. [2023-01-28 04:30:27,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 124 transitions, 721 flow [2023-01-28 04:30:27,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 124 transitions, 689 flow, removed 12 selfloop flow, removed 6 redundant places. [2023-01-28 04:30:27,458 INFO L231 Difference]: Finished difference. Result has 66 places, 55 transitions, 255 flow [2023-01-28 04:30:27,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=66, PETRI_TRANSITIONS=55} [2023-01-28 04:30:27,459 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 21 predicate places. [2023-01-28 04:30:27,459 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 255 flow [2023-01-28 04:30:27,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.66666666666666) internal successors, (1060), 6 states have internal predecessors, (1060), 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) [2023-01-28 04:30:27,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:27,459 INFO L208 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] [2023-01-28 04:30:27,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 04:30:27,460 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:27,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:27,460 INFO L85 PathProgramCache]: Analyzing trace with hash 941635635, now seen corresponding path program 1 times [2023-01-28 04:30:27,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:27,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391489997] [2023-01-28 04:30:27,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:27,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:27,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:30:27,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:27,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391489997] [2023-01-28 04:30:27,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391489997] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:27,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:30:27,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 04:30:27,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234779378] [2023-01-28 04:30:27,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:27,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 04:30:27,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:27,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 04:30:27,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-01-28 04:30:27,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 489 [2023-01-28 04:30:27,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 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) [2023-01-28 04:30:27,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:27,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 489 [2023-01-28 04:30:27,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:28,807 INFO L130 PetriNetUnfolder]: 9753/13044 cut-off events. [2023-01-28 04:30:28,807 INFO L131 PetriNetUnfolder]: For 13624/13624 co-relation queries the response was YES. [2023-01-28 04:30:28,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37960 conditions, 13044 events. 9753/13044 cut-off events. For 13624/13624 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 62178 event pairs, 826 based on Foata normal form. 548/13590 useless extension candidates. Maximal degree in co-relation 32637. Up to 7564 conditions per place. [2023-01-28 04:30:28,857 INFO L137 encePairwiseOnDemand]: 483/489 looper letters, 103 selfloop transitions, 5 changer transitions 1/109 dead transitions. [2023-01-28 04:30:28,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 109 transitions, 723 flow [2023-01-28 04:30:28,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 04:30:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 04:30:28,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1129 transitions. [2023-01-28 04:30:28,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38479890933878663 [2023-01-28 04:30:28,861 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1129 transitions. [2023-01-28 04:30:28,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1129 transitions. [2023-01-28 04:30:28,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:28,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1129 transitions. [2023-01-28 04:30:28,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 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) [2023-01-28 04:30:28,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 489.0) internal successors, (3423), 7 states have internal predecessors, (3423), 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) [2023-01-28 04:30:28,868 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 489.0) internal successors, (3423), 7 states have internal predecessors, (3423), 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) [2023-01-28 04:30:28,868 INFO L175 Difference]: Start difference. First operand has 66 places, 55 transitions, 255 flow. Second operand 6 states and 1129 transitions. [2023-01-28 04:30:28,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 109 transitions, 723 flow [2023-01-28 04:30:28,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 109 transitions, 706 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-01-28 04:30:28,882 INFO L231 Difference]: Finished difference. Result has 67 places, 54 transitions, 252 flow [2023-01-28 04:30:28,882 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=252, PETRI_PLACES=67, PETRI_TRANSITIONS=54} [2023-01-28 04:30:28,882 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 22 predicate places. [2023-01-28 04:30:28,883 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 54 transitions, 252 flow [2023-01-28 04:30:28,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 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) [2023-01-28 04:30:28,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:28,883 INFO L208 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] [2023-01-28 04:30:28,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 04:30:28,884 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:28,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:28,884 INFO L85 PathProgramCache]: Analyzing trace with hash 860652039, now seen corresponding path program 1 times [2023-01-28 04:30:28,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:28,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971371493] [2023-01-28 04:30:28,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:28,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:29,201 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-01-28 04:30:29,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:29,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971371493] [2023-01-28 04:30:29,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971371493] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:29,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:30:29,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 04:30:29,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59571615] [2023-01-28 04:30:29,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:29,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 04:30:29,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:29,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 04:30:29,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-01-28 04:30:29,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 489 [2023-01-28 04:30:29,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 54 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 177.16666666666666) internal successors, (1063), 6 states have internal predecessors, (1063), 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) [2023-01-28 04:30:29,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:29,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 489 [2023-01-28 04:30:29,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:30,229 INFO L130 PetriNetUnfolder]: 10068/13334 cut-off events. [2023-01-28 04:30:30,229 INFO L131 PetriNetUnfolder]: For 16560/16560 co-relation queries the response was YES. [2023-01-28 04:30:30,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40538 conditions, 13334 events. 10068/13334 cut-off events. For 16560/16560 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 60391 event pairs, 1721 based on Foata normal form. 608/13941 useless extension candidates. Maximal degree in co-relation 40504. Up to 8566 conditions per place. [2023-01-28 04:30:30,274 INFO L137 encePairwiseOnDemand]: 481/489 looper letters, 125 selfloop transitions, 9 changer transitions 0/134 dead transitions. [2023-01-28 04:30:30,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 134 transitions, 907 flow [2023-01-28 04:30:30,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 04:30:30,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 04:30:30,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1292 transitions. [2023-01-28 04:30:30,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37744668419515043 [2023-01-28 04:30:30,279 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1292 transitions. [2023-01-28 04:30:30,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1292 transitions. [2023-01-28 04:30:30,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:30,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1292 transitions. [2023-01-28 04:30:30,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 184.57142857142858) internal successors, (1292), 7 states have internal predecessors, (1292), 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) [2023-01-28 04:30:30,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 489.0) internal successors, (3912), 8 states have internal predecessors, (3912), 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) [2023-01-28 04:30:30,287 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 489.0) internal successors, (3912), 8 states have internal predecessors, (3912), 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) [2023-01-28 04:30:30,287 INFO L175 Difference]: Start difference. First operand has 67 places, 54 transitions, 252 flow. Second operand 7 states and 1292 transitions. [2023-01-28 04:30:30,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 134 transitions, 907 flow [2023-01-28 04:30:30,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 134 transitions, 884 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-01-28 04:30:30,297 INFO L231 Difference]: Finished difference. Result has 69 places, 60 transitions, 309 flow [2023-01-28 04:30:30,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=309, PETRI_PLACES=69, PETRI_TRANSITIONS=60} [2023-01-28 04:30:30,297 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 24 predicate places. [2023-01-28 04:30:30,297 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 60 transitions, 309 flow [2023-01-28 04:30:30,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.16666666666666) internal successors, (1063), 6 states have internal predecessors, (1063), 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) [2023-01-28 04:30:30,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:30,298 INFO L208 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] [2023-01-28 04:30:30,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 04:30:30,298 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:30,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:30,299 INFO L85 PathProgramCache]: Analyzing trace with hash -90881913, now seen corresponding path program 1 times [2023-01-28 04:30:30,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:30,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964216672] [2023-01-28 04:30:30,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:30,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:30,493 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-28 04:30:30,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:30,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964216672] [2023-01-28 04:30:30,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964216672] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:30:30,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913685532] [2023-01-28 04:30:30,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:30,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:30:30,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:30:30,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:30:30,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 04:30:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:30,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-28 04:30:30,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:30:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-28 04:30:30,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 04:30:30,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913685532] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:30,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 04:30:30,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2023-01-28 04:30:30,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793329580] [2023-01-28 04:30:30,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:30,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 04:30:30,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:30,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 04:30:30,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-28 04:30:30,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 489 [2023-01-28 04:30:30,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 60 transitions, 309 flow. Second operand has 5 states, 5 states have (on average 221.6) internal successors, (1108), 5 states have internal predecessors, (1108), 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) [2023-01-28 04:30:30,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:30,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 489 [2023-01-28 04:30:30,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:32,502 INFO L130 PetriNetUnfolder]: 12987/16821 cut-off events. [2023-01-28 04:30:32,502 INFO L131 PetriNetUnfolder]: For 35922/37169 co-relation queries the response was YES. [2023-01-28 04:30:32,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59886 conditions, 16821 events. 12987/16821 cut-off events. For 35922/37169 co-relation queries the response was YES. Maximal size of possible extension queue 777. Compared 83272 event pairs, 1905 based on Foata normal form. 949/17735 useless extension candidates. Maximal degree in co-relation 59851. Up to 5781 conditions per place. [2023-01-28 04:30:32,601 INFO L137 encePairwiseOnDemand]: 483/489 looper letters, 121 selfloop transitions, 18 changer transitions 0/145 dead transitions. [2023-01-28 04:30:32,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 145 transitions, 1015 flow [2023-01-28 04:30:32,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 04:30:32,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 04:30:32,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1384 transitions. [2023-01-28 04:30:32,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47171097477845947 [2023-01-28 04:30:32,605 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1384 transitions. [2023-01-28 04:30:32,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1384 transitions. [2023-01-28 04:30:32,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:32,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1384 transitions. [2023-01-28 04:30:32,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.66666666666666) internal successors, (1384), 6 states have internal predecessors, (1384), 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) [2023-01-28 04:30:32,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 489.0) internal successors, (3423), 7 states have internal predecessors, (3423), 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) [2023-01-28 04:30:32,614 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 489.0) internal successors, (3423), 7 states have internal predecessors, (3423), 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) [2023-01-28 04:30:32,614 INFO L175 Difference]: Start difference. First operand has 69 places, 60 transitions, 309 flow. Second operand 6 states and 1384 transitions. [2023-01-28 04:30:32,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 145 transitions, 1015 flow [2023-01-28 04:30:32,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 145 transitions, 1001 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-01-28 04:30:32,648 INFO L231 Difference]: Finished difference. Result has 75 places, 72 transitions, 463 flow [2023-01-28 04:30:32,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=463, PETRI_PLACES=75, PETRI_TRANSITIONS=72} [2023-01-28 04:30:32,649 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 30 predicate places. [2023-01-28 04:30:32,649 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 72 transitions, 463 flow [2023-01-28 04:30:32,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 221.6) internal successors, (1108), 5 states have internal predecessors, (1108), 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) [2023-01-28 04:30:32,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:32,650 INFO L208 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] [2023-01-28 04:30:32,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-01-28 04:30:32,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-01-28 04:30:32,857 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:32,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:32,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1489168185, now seen corresponding path program 2 times [2023-01-28 04:30:32,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:32,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501806843] [2023-01-28 04:30:32,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:32,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-01-28 04:30:33,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:33,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501806843] [2023-01-28 04:30:33,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501806843] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:30:33,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927891664] [2023-01-28 04:30:33,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 04:30:33,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:30:33,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:30:33,057 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:30:33,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 04:30:33,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 04:30:33,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:30:33,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 5 conjunts are in the unsatisfiable core [2023-01-28 04:30:33,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:30:33,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-01-28 04:30:33,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 04:30:33,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927891664] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:30:33,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 04:30:33,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-01-28 04:30:33,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172919813] [2023-01-28 04:30:33,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:30:33,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 04:30:33,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:30:33,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 04:30:33,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-28 04:30:33,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 489 [2023-01-28 04:30:33,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 72 transitions, 463 flow. Second operand has 5 states, 5 states have (on average 221.6) internal successors, (1108), 5 states have internal predecessors, (1108), 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) [2023-01-28 04:30:33,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:30:33,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 489 [2023-01-28 04:30:33,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:30:36,964 INFO L130 PetriNetUnfolder]: 28667/38348 cut-off events. [2023-01-28 04:30:36,965 INFO L131 PetriNetUnfolder]: For 121070/124102 co-relation queries the response was YES. [2023-01-28 04:30:37,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145761 conditions, 38348 events. 28667/38348 cut-off events. For 121070/124102 co-relation queries the response was YES. Maximal size of possible extension queue 1392. Compared 217757 event pairs, 3648 based on Foata normal form. 2901/40778 useless extension candidates. Maximal degree in co-relation 145722. Up to 12111 conditions per place. [2023-01-28 04:30:37,169 INFO L137 encePairwiseOnDemand]: 483/489 looper letters, 149 selfloop transitions, 18 changer transitions 0/178 dead transitions. [2023-01-28 04:30:37,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 178 transitions, 1496 flow [2023-01-28 04:30:37,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 04:30:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 04:30:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1386 transitions. [2023-01-28 04:30:37,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4723926380368098 [2023-01-28 04:30:37,174 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1386 transitions. [2023-01-28 04:30:37,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1386 transitions. [2023-01-28 04:30:37,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:30:37,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1386 transitions. [2023-01-28 04:30:37,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 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) [2023-01-28 04:30:37,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 489.0) internal successors, (3423), 7 states have internal predecessors, (3423), 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) [2023-01-28 04:30:37,182 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 489.0) internal successors, (3423), 7 states have internal predecessors, (3423), 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) [2023-01-28 04:30:37,182 INFO L175 Difference]: Start difference. First operand has 75 places, 72 transitions, 463 flow. Second operand 6 states and 1386 transitions. [2023-01-28 04:30:37,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 178 transitions, 1496 flow [2023-01-28 04:30:37,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 178 transitions, 1487 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-28 04:30:37,289 INFO L231 Difference]: Finished difference. Result has 83 places, 84 transitions, 623 flow [2023-01-28 04:30:37,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=623, PETRI_PLACES=83, PETRI_TRANSITIONS=84} [2023-01-28 04:30:37,289 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 38 predicate places. [2023-01-28 04:30:37,289 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 84 transitions, 623 flow [2023-01-28 04:30:37,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 221.6) internal successors, (1108), 5 states have internal predecessors, (1108), 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) [2023-01-28 04:30:37,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:30:37,290 INFO L208 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] [2023-01-28 04:30:37,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 04:30:37,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-01-28 04:30:37,502 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 04:30:37,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:30:37,502 INFO L85 PathProgramCache]: Analyzing trace with hash 105624180, now seen corresponding path program 1 times [2023-01-28 04:30:37,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:30:37,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419700442] [2023-01-28 04:30:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:37,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:30:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:30:40,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:30:40,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419700442] [2023-01-28 04:30:40,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419700442] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:30:40,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923154547] [2023-01-28 04:30:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:30:40,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:30:40,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:30:40,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:30:40,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 04:30:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:30:40,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 80 conjunts are in the unsatisfiable core [2023-01-28 04:30:40,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:30:41,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:30:41,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:30:41,931 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 04:30:41,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 27 [2023-01-28 04:30:42,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:30:42,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:30:42,208 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 04:30:42,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 27 [2023-01-28 04:30:42,843 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:30:42,843 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:30:42,856 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-01-28 04:30:42,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 30 [2023-01-28 04:30:42,895 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:30:42,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:30:43,455 WARN L839 $PredicateComparison]: unable to prove that (or (<= c_~n1~0 c_~q1_back~0) (<= c_~n1~0 c_~q1_front~0) (< c_~q1_front~0 0) (< c_~q1_back~0 0) (<= c_~n2~0 c_~q2_front~0) (< c_~q2_front~0 0) (let ((.cse1 (+ c_~f~0.offset (* c_~i~0 4))) (.cse3 (+ (* c_~q1_back~0 4) c_~q1~0.offset)) (.cse4 (+ (* c_~q1_front~0 4) c_~q1~0.offset)) (.cse5 (+ c_~q2~0.offset (* c_~q2_front~0 4)))) (and (forall ((v_ArrVal_568 (Array Int Int)) (~q1~0.base Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_568))) (let ((.cse2 (select .cse0 ~q1~0.base))) (or (not (= (select (select .cse0 c_~f~0.base) .cse1) (select .cse2 .cse3))) (< 0 (+ (select .cse2 .cse4) (select (select .cse0 c_~q2~0.base) .cse5) c_~total~0 1)))))) (forall ((v_ArrVal_568 (Array Int Int)) (~q1~0.base Int)) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_568))) (let ((.cse7 (select .cse6 ~q1~0.base))) (or (not (= (select (select .cse6 c_~f~0.base) .cse1) (select .cse7 .cse3))) (<= (+ (select .cse7 .cse4) (select (select .cse6 c_~q2~0.base) .cse5) c_~total~0) 0)))))))) is different from false [2023-01-28 04:30:43,823 WARN L839 $PredicateComparison]: unable to prove that (or (<= c_~n1~0 c_~q1_back~0) (<= c_~n1~0 c_~q1_front~0) (< c_~q1_front~0 0) (let ((.cse1 (+ (* c_~q1_back~0 4) c_~q1~0.offset)) (.cse3 (+ c_~f~0.offset (* c_~i~0 4))) (.cse4 (+ c_~q2~0.offset (* c_~q2_front~0 4))) (.cse5 (+ (* c_~q1_front~0 4) c_~q1~0.offset))) (and (forall ((v_ArrVal_568 (Array Int Int)) (v_ArrVal_567 (Array Int Int)) (~q1~0.base Int)) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_567) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_568))) (let ((.cse0 (select .cse2 ~q1~0.base))) (or (not (= (select .cse0 .cse1) (select (select .cse2 c_~f~0.base) .cse3))) (<= (+ (select (select .cse2 c_~q2~0.base) .cse4) c_~total~0 (select .cse0 .cse5)) 0))))) (forall ((v_ArrVal_568 (Array Int Int)) (v_ArrVal_567 (Array Int Int)) (~q1~0.base Int)) (let ((.cse7 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_567) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_568))) (let ((.cse6 (select .cse7 ~q1~0.base))) (or (not (= (select .cse6 .cse1) (select (select .cse7 c_~f~0.base) .cse3))) (< 0 (+ (select (select .cse7 c_~q2~0.base) .cse4) c_~total~0 (select .cse6 .cse5) 1)))))))) (< c_~q1_back~0 0) (<= c_~n2~0 c_~q2_front~0) (< c_~q2_front~0 0)) is different from false [2023-01-28 04:30:44,317 INFO L321 Elim1Store]: treesize reduction 22, result has 95.1 percent of original size [2023-01-28 04:30:44,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 4096 treesize of output 3932 [2023-01-28 04:30:44,787 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:30:44,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1513 treesize of output 1506 [2023-01-28 04:30:44,923 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:30:44,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1417 treesize of output 1314 [2023-01-28 04:30:45,070 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:30:45,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1225 treesize of output 1122 [2023-01-28 04:30:45,225 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:30:45,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1033 treesize of output 1026 Received shutdown request... [2023-01-28 04:44:04,494 WARN L238 SmtUtils]: Removed 1 from assertion stack [2023-01-28 04:44:04,497 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 04:44:04,498 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 04:44:04,498 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 04:44:04,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 04:44:04,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:44:04,703 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-60-7-4-9-5-7-6-6-4-6-4-6-5-7-3-6-3-5-3-5-3-3-2-3-2-2-1 context. [2023-01-28 04:44:04,704 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-01-28 04:44:04,705 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-28 04:44:04,705 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-28 04:44:04,705 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-01-28 04:44:04,705 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:44:04,708 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 04:44:04,708 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 04:44:04,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 04:44:04 BasicIcfg [2023-01-28 04:44:04,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 04:44:04,711 INFO L158 Benchmark]: Toolchain (without parser) took 837828.18ms. Allocated memory was 358.6MB in the beginning and 8.8GB in the end (delta: 8.4GB). Free memory was 316.6MB in the beginning and 8.0GB in the end (delta: -7.6GB). Peak memory consumption was 5.9GB. Max. memory is 16.0GB. [2023-01-28 04:44:04,711 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 04:44:04,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.58ms. Allocated memory is still 358.6MB. Free memory was 316.6MB in the beginning and 303.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 04:44:04,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.24ms. Allocated memory is still 358.6MB. Free memory was 303.7MB in the beginning and 300.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 04:44:04,714 INFO L158 Benchmark]: Boogie Preprocessor took 43.37ms. Allocated memory is still 358.6MB. Free memory was 300.9MB in the beginning and 298.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 04:44:04,714 INFO L158 Benchmark]: RCFGBuilder took 872.69ms. Allocated memory is still 358.6MB. Free memory was 298.4MB in the beginning and 305.4MB in the end (delta: -7.0MB). Peak memory consumption was 33.7MB. Max. memory is 16.0GB. [2023-01-28 04:44:04,714 INFO L158 Benchmark]: TraceAbstraction took 836608.00ms. Allocated memory was 358.6MB in the beginning and 8.8GB in the end (delta: 8.4GB). Free memory was 304.9MB in the beginning and 8.0GB in the end (delta: -7.6GB). Peak memory consumption was 5.9GB. Max. memory is 16.0GB. [2023-01-28 04:44:04,715 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 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 252.58ms. Allocated memory is still 358.6MB. Free memory was 316.6MB in the beginning and 303.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.24ms. Allocated memory is still 358.6MB. Free memory was 303.7MB in the beginning and 300.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 43.37ms. Allocated memory is still 358.6MB. Free memory was 300.9MB in the beginning and 298.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 872.69ms. Allocated memory is still 358.6MB. Free memory was 298.4MB in the beginning and 305.4MB in the end (delta: -7.0MB). Peak memory consumption was 33.7MB. Max. memory is 16.0GB. * TraceAbstraction took 836608.00ms. Allocated memory was 358.6MB in the beginning and 8.8GB in the end (delta: 8.4GB). Free memory was 304.9MB in the beginning and 8.0GB in the end (delta: -7.6GB). Peak memory consumption was 5.9GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.3s, 228 PlacesBefore, 45 PlacesAfterwards, 237 TransitionsBefore, 39 TransitionsAfterwards, 2000 CoEnabledTransitionPairs, 8 FixpointIterations, 154 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 32 TrivialYvCompositions, 8 ConcurrentYvCompositions, 15 ChoiceCompositions, 236 TotalNumberOfCompositions, 4059 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2869, independent: 2775, independent conditional: 0, independent unconditional: 2775, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1044, independent: 1025, independent conditional: 0, independent unconditional: 1025, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2869, independent: 1750, independent conditional: 0, independent unconditional: 1750, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 1044, unknown conditional: 0, unknown unconditional: 1044] , Statistics on independence cache: Total cache size (in pairs): 162, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 155]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-60-7-4-9-5-7-6-6-4-6-4-6-5-7-3-6-3-5-3-5-3-3-2-3-2-2-1 context. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-60-7-4-9-5-7-6-6-4-6-4-6-5-7-3-6-3-5-3-5-3-3-2-3-2-2-1 context. - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-60-7-4-9-5-7-6-6-4-6-4-6-5-7-3-6-3-5-3-5-3-3-2-3-2-2-1 context. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-60-7-4-9-5-7-6-6-4-6-4-6-5-7-3-6-3-5-3-5-3-3-2-3-2-2-1 context. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 40 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-60-7-4-9-5-7-6-6-4-6-4-6-5-7-3-6-3-5-3-5-3-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 266 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 836.5s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 638 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 638 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1688 IncrementalHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 5 mSDtfsCounter, 1688 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=623occurred in iteration=12, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 471 NumberOfCodeBlocks, 471 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 457 ConstructedInterpolants, 0 QuantifiedInterpolants, 1293 SizeOfPredicates, 4 NumberOfNonLiveVariables, 834 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 48/50 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown