/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 AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 08:24:57,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 08:24:57,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 08:24:57,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 08:24:57,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 08:24:57,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 08:24:57,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 08:24:57,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 08:24:57,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 08:24:57,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 08:24:57,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 08:24:57,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 08:24:57,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 08:24:57,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 08:24:57,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 08:24:57,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 08:24:57,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 08:24:57,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 08:24:57,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 08:24:57,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 08:24:57,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 08:24:57,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 08:24:57,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 08:24:57,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 08:24:57,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 08:24:57,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 08:24:57,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 08:24:57,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 08:24:57,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 08:24:57,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 08:24:57,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 08:24:57,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 08:24:57,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 08:24:57,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 08:24:57,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 08:24:57,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 08:24:57,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 08:24:57,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 08:24:57,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 08:24:57,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 08:24:57,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 08:24:57,488 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 08:24:57,507 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 08:24:57,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 08:24:57,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 08:24:57,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 08:24:57,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 08:24:57,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 08:24:57,509 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 08:24:57,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 08:24:57,509 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 08:24:57,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 08:24:57,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 08:24:57,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 08:24:57,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 08:24:57,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 08:24:57,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 08:24:57,511 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 08:24:57,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 08:24:57,511 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 08:24:57,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 08:24:57,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 08:24:57,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 08:24:57,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 08:24:57,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 08:24:57,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 08:24:57,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 08:24:57,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 08:24:57,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 08:24:57,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 08:24:57,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 08:24:57,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 08:24:57,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 08:24:57,513 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 08:24:57,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 08:24:57,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 08:24:57,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 08:24:57,758 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 08:24:57,759 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 08:24:57,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i [2023-01-28 08:24:58,883 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 08:24:59,078 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 08:24:59,078 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i [2023-01-28 08:24:59,091 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/087e4b291/37e13ef2be0148b78d0a3aff2dedbe80/FLAGe117b1ffa [2023-01-28 08:24:59,103 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/087e4b291/37e13ef2be0148b78d0a3aff2dedbe80 [2023-01-28 08:24:59,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 08:24:59,107 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 08:24:59,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 08:24:59,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 08:24:59,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 08:24:59,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61545c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59, skipping insertion in model container [2023-01-28 08:24:59,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 08:24:59,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 08:24:59,275 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i[1089,1102] [2023-01-28 08:24:59,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 08:24:59,388 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 08:24:59,398 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i[1089,1102] [2023-01-28 08:24:59,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 08:24:59,448 INFO L208 MainTranslator]: Completed translation [2023-01-28 08:24:59,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59 WrapperNode [2023-01-28 08:24:59,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 08:24:59,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 08:24:59,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 08:24:59,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 08:24:59,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,482 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-01-28 08:24:59,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 08:24:59,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 08:24:59,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 08:24:59,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 08:24:59,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,499 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 08:24:59,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 08:24:59,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 08:24:59,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 08:24:59,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (1/1) ... [2023-01-28 08:24:59,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 08:24:59,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 08:24:59,530 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 08:24:59,555 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 08:24:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 08:24:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 08:24:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 08:24:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 08:24:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 08:24:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 08:24:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 08:24:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 08:24:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 08:24:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 08:24:59,573 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 08:24:59,695 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 08:24:59,697 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 08:24:59,812 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 08:24:59,817 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 08:24:59,817 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 08:24:59,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 08:24:59 BoogieIcfgContainer [2023-01-28 08:24:59,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 08:24:59,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 08:24:59,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 08:24:59,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 08:24:59,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 08:24:59" (1/3) ... [2023-01-28 08:24:59,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d65d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 08:24:59, skipping insertion in model container [2023-01-28 08:24:59,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:24:59" (2/3) ... [2023-01-28 08:24:59,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d65d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 08:24:59, skipping insertion in model container [2023-01-28 08:24:59,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 08:24:59" (3/3) ... [2023-01-28 08:24:59,825 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_11-traces-max-simple_true.i [2023-01-28 08:24:59,845 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 08:24:59,845 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 08:24:59,845 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 08:24:59,909 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 08:24:59,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 125 flow [2023-01-28 08:24:59,966 INFO L130 PetriNetUnfolder]: 2/59 cut-off events. [2023-01-28 08:24:59,966 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 08:24:59,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-01-28 08:24:59,970 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 60 transitions, 125 flow [2023-01-28 08:24:59,973 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 59 transitions, 121 flow [2023-01-28 08:24:59,976 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 08:24:59,985 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 59 transitions, 121 flow [2023-01-28 08:24:59,987 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 59 transitions, 121 flow [2023-01-28 08:24:59,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 121 flow [2023-01-28 08:25:00,004 INFO L130 PetriNetUnfolder]: 2/59 cut-off events. [2023-01-28 08:25:00,005 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 08:25:00,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-01-28 08:25:00,006 INFO L119 LiptonReduction]: Number of co-enabled transitions 600 [2023-01-28 08:25:01,523 INFO L134 LiptonReduction]: Checked pairs total: 1073 [2023-01-28 08:25:01,524 INFO L136 LiptonReduction]: Total number of compositions: 57 [2023-01-28 08:25:01,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 08:25:01,541 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;@638f14ae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 08:25:01,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 08:25:01,544 INFO L130 PetriNetUnfolder]: 1/8 cut-off events. [2023-01-28 08:25:01,544 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 08:25:01,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:25:01,545 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-28 08:25:01,545 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-01-28 08:25:01,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:25:01,549 INFO L85 PathProgramCache]: Analyzing trace with hash 7116493, now seen corresponding path program 1 times [2023-01-28 08:25:01,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:25:01,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086482285] [2023-01-28 08:25:01,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:25:01,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:25:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:25:01,720 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 08:25:01,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:25:01,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086482285] [2023-01-28 08:25:01,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086482285] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 08:25:01,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 08:25:01,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 08:25:01,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114558829] [2023-01-28 08:25:01,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:25:01,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 08:25:01,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:25:01,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 08:25:01,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 08:25:01,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 117 [2023-01-28 08:25:01,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 13 transitions, 29 flow. Second operand has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 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 08:25:01,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:25:01,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 117 [2023-01-28 08:25:01,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:25:01,793 INFO L130 PetriNetUnfolder]: 12/34 cut-off events. [2023-01-28 08:25:01,794 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 08:25:01,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 34 events. 12/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 86 event pairs, 12 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 63. Up to 34 conditions per place. [2023-01-28 08:25:01,795 INFO L137 encePairwiseOnDemand]: 115/117 looper letters, 7 selfloop transitions, 0 changer transitions 2/10 dead transitions. [2023-01-28 08:25:01,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 10 transitions, 41 flow [2023-01-28 08:25:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 08:25:01,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 08:25:01,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 121 transitions. [2023-01-28 08:25:01,805 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170940170940171 [2023-01-28 08:25:01,806 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 121 transitions. [2023-01-28 08:25:01,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 121 transitions. [2023-01-28 08:25:01,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:25:01,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 121 transitions. [2023-01-28 08:25:01,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 60.5) internal successors, (121), 2 states have internal predecessors, (121), 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 08:25:01,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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 08:25:01,817 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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 08:25:01,819 INFO L175 Difference]: Start difference. First operand has 16 places, 13 transitions, 29 flow. Second operand 2 states and 121 transitions. [2023-01-28 08:25:01,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 10 transitions, 41 flow [2023-01-28 08:25:01,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 10 transitions, 40 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 08:25:01,822 INFO L231 Difference]: Finished difference. Result has 14 places, 8 transitions, 18 flow [2023-01-28 08:25:01,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=18, PETRI_PLACES=14, PETRI_TRANSITIONS=8} [2023-01-28 08:25:01,830 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -2 predicate places. [2023-01-28 08:25:01,830 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 8 transitions, 18 flow [2023-01-28 08:25:01,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 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 08:25:01,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:25:01,831 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-28 08:25:01,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 08:25:01,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-01-28 08:25:01,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:25:01,833 INFO L85 PathProgramCache]: Analyzing trace with hash 220633273, now seen corresponding path program 1 times [2023-01-28 08:25:01,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:25:01,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545365694] [2023-01-28 08:25:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:25:01,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:25:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:25:01,980 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 08:25:01,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:25:01,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545365694] [2023-01-28 08:25:01,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545365694] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 08:25:01,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 08:25:01,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 08:25:01,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837093911] [2023-01-28 08:25:01,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:25:01,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 08:25:01,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:25:01,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 08:25:01,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 08:25:01,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 117 [2023-01-28 08:25:01,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 8 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 08:25:01,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:25:01,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 117 [2023-01-28 08:25:01,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:25:02,001 INFO L130 PetriNetUnfolder]: 6/23 cut-off events. [2023-01-28 08:25:02,002 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 08:25:02,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 23 events. 6/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 4 based on Foata normal form. 4/27 useless extension candidates. Maximal degree in co-relation 48. Up to 18 conditions per place. [2023-01-28 08:25:02,002 INFO L137 encePairwiseOnDemand]: 114/117 looper letters, 7 selfloop transitions, 2 changer transitions 2/11 dead transitions. [2023-01-28 08:25:02,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 11 transitions, 46 flow [2023-01-28 08:25:02,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 08:25:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 08:25:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2023-01-28 08:25:02,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4358974358974359 [2023-01-28 08:25:02,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 153 transitions. [2023-01-28 08:25:02,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 153 transitions. [2023-01-28 08:25:02,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:25:02,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 153 transitions. [2023-01-28 08:25:02,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 08:25:02,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 08:25:02,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 08:25:02,007 INFO L175 Difference]: Start difference. First operand has 14 places, 8 transitions, 18 flow. Second operand 3 states and 153 transitions. [2023-01-28 08:25:02,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 11 transitions, 46 flow [2023-01-28 08:25:02,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 08:25:02,008 INFO L231 Difference]: Finished difference. Result has 15 places, 8 transitions, 26 flow [2023-01-28 08:25:02,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=26, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2023-01-28 08:25:02,009 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2023-01-28 08:25:02,009 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 8 transitions, 26 flow [2023-01-28 08:25:02,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 08:25:02,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:25:02,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-28 08:25:02,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 08:25:02,010 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-01-28 08:25:02,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:25:02,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1576155259, now seen corresponding path program 1 times [2023-01-28 08:25:02,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:25:02,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519105310] [2023-01-28 08:25:02,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:25:02,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:25:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:25:02,071 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 08:25:02,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:25:02,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519105310] [2023-01-28 08:25:02,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519105310] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 08:25:02,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 08:25:02,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 08:25:02,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095046558] [2023-01-28 08:25:02,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:25:02,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 08:25:02,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:25:02,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 08:25:02,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 08:25:02,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 117 [2023-01-28 08:25:02,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 8 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 08:25:02,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:25:02,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 117 [2023-01-28 08:25:02,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:25:02,082 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-01-28 08:25:02,082 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 08:25:02,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 5 events. 0/5 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 2/7 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-01-28 08:25:02,082 INFO L137 encePairwiseOnDemand]: 115/117 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2023-01-28 08:25:02,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 5 transitions, 23 flow [2023-01-28 08:25:02,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 08:25:02,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 08:25:02,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2023-01-28 08:25:02,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4017094017094017 [2023-01-28 08:25:02,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 141 transitions. [2023-01-28 08:25:02,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 141 transitions. [2023-01-28 08:25:02,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:25:02,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 141 transitions. [2023-01-28 08:25:02,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 08:25:02,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 08:25:02,087 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 08:25:02,087 INFO L175 Difference]: Start difference. First operand has 15 places, 8 transitions, 26 flow. Second operand 3 states and 141 transitions. [2023-01-28 08:25:02,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 5 transitions, 23 flow [2023-01-28 08:25:02,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 5 transitions, 21 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 08:25:02,088 INFO L231 Difference]: Finished difference. Result has 12 places, 0 transitions, 0 flow [2023-01-28 08:25:02,088 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=12, PETRI_TRANSITIONS=0} [2023-01-28 08:25:02,089 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -4 predicate places. [2023-01-28 08:25:02,089 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 0 transitions, 0 flow [2023-01-28 08:25:02,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 08:25:02,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 08:25:02,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 08:25:02,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-01-28 08:25:02,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-01-28 08:25:02,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 08:25:02,092 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-01-28 08:25:02,096 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 08:25:02,096 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 08:25:02,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 08:25:02 BasicIcfg [2023-01-28 08:25:02,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 08:25:02,100 INFO L158 Benchmark]: Toolchain (without parser) took 2992.58ms. Allocated memory is still 329.3MB. Free memory was 288.4MB in the beginning and 248.1MB in the end (delta: 40.3MB). Peak memory consumption was 41.7MB. Max. memory is 16.0GB. [2023-01-28 08:25:02,100 INFO L158 Benchmark]: CDTParser took 0.15ms. 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 08:25:02,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.10ms. Allocated memory is still 329.3MB. Free memory was 288.4MB in the beginning and 269.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 08:25:02,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.88ms. Allocated memory is still 329.3MB. Free memory was 269.5MB in the beginning and 267.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 08:25:02,101 INFO L158 Benchmark]: Boogie Preprocessor took 18.20ms. Allocated memory is still 329.3MB. Free memory was 267.7MB in the beginning and 266.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 08:25:02,102 INFO L158 Benchmark]: RCFGBuilder took 316.67ms. Allocated memory is still 329.3MB. Free memory was 266.4MB in the beginning and 254.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 08:25:02,102 INFO L158 Benchmark]: TraceAbstraction took 2278.75ms. Allocated memory is still 329.3MB. Free memory was 253.5MB in the beginning and 248.1MB in the end (delta: 5.4MB). Peak memory consumption was 8.1MB. Max. memory is 16.0GB. [2023-01-28 08:25:02,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 341.10ms. Allocated memory is still 329.3MB. Free memory was 288.4MB in the beginning and 269.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.88ms. Allocated memory is still 329.3MB. Free memory was 269.5MB in the beginning and 267.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 18.20ms. Allocated memory is still 329.3MB. Free memory was 267.7MB in the beginning and 266.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 316.67ms. Allocated memory is still 329.3MB. Free memory was 266.4MB in the beginning and 254.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2278.75ms. Allocated memory is still 329.3MB. Free memory was 253.5MB in the beginning and 248.1MB in the end (delta: 5.4MB). Peak memory consumption was 8.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 61 PlacesBefore, 16 PlacesAfterwards, 59 TransitionsBefore, 13 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 1073 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 647, independent: 550, independent conditional: 0, independent unconditional: 550, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 355, independent: 329, independent conditional: 0, independent unconditional: 329, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 647, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 355, unknown conditional: 0, unknown unconditional: 355] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 08:25:02,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...