/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/goblint-regression/13-privatized_25-struct_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 01:27:42,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 01:27:42,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 01:27:42,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 01:27:42,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 01:27:42,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 01:27:42,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 01:27:42,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 01:27:42,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 01:27:42,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 01:27:42,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 01:27:42,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 01:27:42,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 01:27:42,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 01:27:42,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 01:27:42,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 01:27:42,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 01:27:42,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 01:27:42,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 01:27:42,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 01:27:42,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 01:27:42,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 01:27:42,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 01:27:42,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 01:27:42,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 01:27:42,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 01:27:42,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 01:27:42,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 01:27:42,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 01:27:42,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 01:27:42,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 01:27:42,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 01:27:42,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 01:27:42,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 01:27:42,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 01:27:42,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 01:27:42,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 01:27:42,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 01:27:42,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 01:27:42,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 01:27:42,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 01:27:42,106 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 01:27:42,131 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 01:27:42,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 01:27:42,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 01:27:42,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 01:27:42,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 01:27:42,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 01:27:42,134 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 01:27:42,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 01:27:42,134 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 01:27:42,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 01:27:42,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 01:27:42,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 01:27:42,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 01:27:42,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 01:27:42,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 01:27:42,135 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 01:27:42,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 01:27:42,135 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 01:27:42,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 01:27:42,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 01:27:42,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 01:27:42,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 01:27:42,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 01:27:42,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:27:42,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 01:27:42,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 01:27:42,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 01:27:42,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 01:27:42,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 01:27:42,137 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 01:27:42,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 01:27:42,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 01:27:42,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 01:27:42,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 01:27:42,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 01:27:42,372 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 01:27:42,373 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 01:27:42,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-01-28 01:27:43,463 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 01:27:43,657 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 01:27:43,658 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-01-28 01:27:43,668 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a59e6dfe7/843b14f9f87444798e9323822da7a1e9/FLAGf3b1124ac [2023-01-28 01:27:43,682 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a59e6dfe7/843b14f9f87444798e9323822da7a1e9 [2023-01-28 01:27:43,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 01:27:43,685 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 01:27:43,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 01:27:43,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 01:27:43,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 01:27:43,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:27:43" (1/1) ... [2023-01-28 01:27:43,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ebea0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:43, skipping insertion in model container [2023-01-28 01:27:43,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:27:43" (1/1) ... [2023-01-28 01:27:43,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 01:27:43,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 01:27:43,905 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/13-privatized_25-struct_nr_true.i[1086,1099] [2023-01-28 01:27:44,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:27:44,036 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 01:27:44,050 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/13-privatized_25-struct_nr_true.i[1086,1099] [2023-01-28 01:27:44,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:27:44,134 INFO L208 MainTranslator]: Completed translation [2023-01-28 01:27:44,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44 WrapperNode [2023-01-28 01:27:44,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 01:27:44,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 01:27:44,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 01:27:44,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 01:27:44,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,197 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 76 [2023-01-28 01:27:44,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 01:27:44,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 01:27:44,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 01:27:44,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 01:27:44,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,227 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 01:27:44,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 01:27:44,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 01:27:44,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 01:27:44,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (1/1) ... [2023-01-28 01:27:44,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:27:44,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:27:44,259 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 01:27:44,281 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 01:27:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 01:27:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 01:27:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 01:27:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 01:27:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 01:27:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 01:27:44,297 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 01:27:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 01:27:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 01:27:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 01:27:44,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 01:27:44,298 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 01:27:44,443 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 01:27:44,445 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 01:27:44,571 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 01:27:44,576 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 01:27:44,576 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 01:27:44,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:27:44 BoogieIcfgContainer [2023-01-28 01:27:44,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 01:27:44,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 01:27:44,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 01:27:44,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 01:27:44,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:27:43" (1/3) ... [2023-01-28 01:27:44,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d1f3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:27:44, skipping insertion in model container [2023-01-28 01:27:44,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:44" (2/3) ... [2023-01-28 01:27:44,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d1f3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:27:44, skipping insertion in model container [2023-01-28 01:27:44,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:27:44" (3/3) ... [2023-01-28 01:27:44,587 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2023-01-28 01:27:44,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 01:27:44,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-28 01:27:44,601 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 01:27:44,640 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 01:27:44,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 176 flow [2023-01-28 01:27:44,704 INFO L130 PetriNetUnfolder]: 4/83 cut-off events. [2023-01-28 01:27:44,704 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 01:27:44,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 83 events. 4/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2023-01-28 01:27:44,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 84 transitions, 176 flow [2023-01-28 01:27:44,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 76 transitions, 155 flow [2023-01-28 01:27:44,714 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:27:44,721 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 76 transitions, 155 flow [2023-01-28 01:27:44,723 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 76 transitions, 155 flow [2023-01-28 01:27:44,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 76 transitions, 155 flow [2023-01-28 01:27:44,740 INFO L130 PetriNetUnfolder]: 4/76 cut-off events. [2023-01-28 01:27:44,740 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:44,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2023-01-28 01:27:44,742 INFO L119 LiptonReduction]: Number of co-enabled transitions 1040 [2023-01-28 01:27:46,786 INFO L134 LiptonReduction]: Checked pairs total: 3026 [2023-01-28 01:27:46,786 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-01-28 01:27:46,799 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 01:27:46,804 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;@79d5da58, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:27:46,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-01-28 01:27:46,805 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-01-28 01:27:46,805 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:46,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:27:46,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-01-28 01:27:46,806 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 01:27:46,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:27:46,810 INFO L85 PathProgramCache]: Analyzing trace with hash 322, now seen corresponding path program 1 times [2023-01-28 01:27:46,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:27:46,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405444815] [2023-01-28 01:27:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:27:46,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:27:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:27:46,939 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 01:27:46,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:27:46,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405444815] [2023-01-28 01:27:46,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405444815] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:27:46,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:27:46,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-01-28 01:27:46,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071492440] [2023-01-28 01:27:46,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:27:46,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 01:27:46,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:27:46,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 01:27:46,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 01:27:46,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 160 [2023-01-28 01:27:46,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 24 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 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 01:27:46,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:27:46,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 160 [2023-01-28 01:27:46,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:27:47,060 INFO L130 PetriNetUnfolder]: 72/171 cut-off events. [2023-01-28 01:27:47,061 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:47,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 171 events. 72/171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 614 event pairs, 72 based on Foata normal form. 9/143 useless extension candidates. Maximal degree in co-relation 330. Up to 164 conditions per place. [2023-01-28 01:27:47,064 INFO L137 encePairwiseOnDemand]: 157/160 looper letters, 19 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2023-01-28 01:27:47,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 81 flow [2023-01-28 01:27:47,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 01:27:47,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 01:27:47,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 170 transitions. [2023-01-28 01:27:47,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53125 [2023-01-28 01:27:47,077 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 170 transitions. [2023-01-28 01:27:47,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 170 transitions. [2023-01-28 01:27:47,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:27:47,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 170 transitions. [2023-01-28 01:27:47,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 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 01:27:47,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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 01:27:47,086 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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 01:27:47,087 INFO L175 Difference]: Start difference. First operand has 26 places, 24 transitions, 51 flow. Second operand 2 states and 170 transitions. [2023-01-28 01:27:47,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 81 flow [2023-01-28 01:27:47,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 01:27:47,091 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 42 flow [2023-01-28 01:27:47,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2023-01-28 01:27:47,096 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-01-28 01:27:47,096 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 42 flow [2023-01-28 01:27:47,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 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 01:27:47,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:27:47,096 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-28 01:27:47,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 01:27:47,097 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 01:27:47,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:27:47,100 INFO L85 PathProgramCache]: Analyzing trace with hash 9837823, now seen corresponding path program 1 times [2023-01-28 01:27:47,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:27:47,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150576398] [2023-01-28 01:27:47,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:27:47,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:27:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:27:47,295 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 01:27:47,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:27:47,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150576398] [2023-01-28 01:27:47,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150576398] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:27:47,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:27:47,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 01:27:47,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315947520] [2023-01-28 01:27:47,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:27:47,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 01:27:47,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:27:47,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 01:27:47,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 01:27:47,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 160 [2023-01-28 01:27:47,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 01:27:47,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:27:47,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 160 [2023-01-28 01:27:47,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:27:47,343 INFO L130 PetriNetUnfolder]: 69/165 cut-off events. [2023-01-28 01:27:47,343 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:47,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 165 events. 69/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 594 event pairs, 39 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 324. Up to 144 conditions per place. [2023-01-28 01:27:47,345 INFO L137 encePairwiseOnDemand]: 156/160 looper letters, 22 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-01-28 01:27:47,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 26 transitions, 104 flow [2023-01-28 01:27:47,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 01:27:47,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 01:27:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2023-01-28 01:27:47,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4479166666666667 [2023-01-28 01:27:47,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2023-01-28 01:27:47,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2023-01-28 01:27:47,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:27:47,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2023-01-28 01:27:47,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 01:27:47,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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 01:27:47,356 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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 01:27:47,356 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 42 flow. Second operand 3 states and 215 transitions. [2023-01-28 01:27:47,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 26 transitions, 104 flow [2023-01-28 01:27:47,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 104 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 01:27:47,357 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 61 flow [2023-01-28 01:27:47,357 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2023-01-28 01:27:47,358 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2023-01-28 01:27:47,358 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 61 flow [2023-01-28 01:27:47,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 01:27:47,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:27:47,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 01:27:47,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 01:27:47,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 01:27:47,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:27:47,359 INFO L85 PathProgramCache]: Analyzing trace with hash 864050899, now seen corresponding path program 1 times [2023-01-28 01:27:47,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:27:47,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837786628] [2023-01-28 01:27:47,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:27:47,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:27:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:27:47,490 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 01:27:47,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:27:47,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837786628] [2023-01-28 01:27:47,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837786628] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:27:47,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:27:47,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 01:27:47,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50355066] [2023-01-28 01:27:47,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:27:47,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 01:27:47,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:27:47,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 01:27:47,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 01:27:47,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 160 [2023-01-28 01:27:47,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 61 flow. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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 01:27:47,495 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:27:47,495 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 160 [2023-01-28 01:27:47,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:27:47,617 INFO L130 PetriNetUnfolder]: 85/200 cut-off events. [2023-01-28 01:27:47,618 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 01:27:47,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 200 events. 85/200 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 825 event pairs, 24 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 430. Up to 124 conditions per place. [2023-01-28 01:27:47,621 INFO L137 encePairwiseOnDemand]: 153/160 looper letters, 32 selfloop transitions, 9 changer transitions 5/47 dead transitions. [2023-01-28 01:27:47,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 47 transitions, 212 flow [2023-01-28 01:27:47,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 01:27:47,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 01:27:47,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2023-01-28 01:27:47,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43020833333333336 [2023-01-28 01:27:47,627 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 413 transitions. [2023-01-28 01:27:47,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 413 transitions. [2023-01-28 01:27:47,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:27:47,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 413 transitions. [2023-01-28 01:27:47,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 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 01:27:47,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 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 01:27:47,634 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 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 01:27:47,634 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 61 flow. Second operand 6 states and 413 transitions. [2023-01-28 01:27:47,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 47 transitions, 212 flow [2023-01-28 01:27:47,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 47 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 01:27:47,636 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 116 flow [2023-01-28 01:27:47,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2023-01-28 01:27:47,637 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2023-01-28 01:27:47,637 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 116 flow [2023-01-28 01:27:47,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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 01:27:47,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:27:47,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 01:27:47,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 01:27:47,638 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 01:27:47,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:27:47,639 INFO L85 PathProgramCache]: Analyzing trace with hash 864194528, now seen corresponding path program 1 times [2023-01-28 01:27:47,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:27:47,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201992236] [2023-01-28 01:27:47,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:27:47,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:27:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:27:47,712 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 01:27:47,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:27:47,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201992236] [2023-01-28 01:27:47,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201992236] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:27:47,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:27:47,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 01:27:47,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65307564] [2023-01-28 01:27:47,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:27:47,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 01:27:47,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:27:47,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 01:27:47,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 01:27:47,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 160 [2023-01-28 01:27:47,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 01:27:47,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:27:47,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 160 [2023-01-28 01:27:47,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:27:47,768 INFO L130 PetriNetUnfolder]: 87/207 cut-off events. [2023-01-28 01:27:47,769 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2023-01-28 01:27:47,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 207 events. 87/207 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 874 event pairs, 43 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 530. Up to 170 conditions per place. [2023-01-28 01:27:47,771 INFO L137 encePairwiseOnDemand]: 154/160 looper letters, 28 selfloop transitions, 7 changer transitions 3/39 dead transitions. [2023-01-28 01:27:47,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 232 flow [2023-01-28 01:27:47,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 01:27:47,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 01:27:47,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2023-01-28 01:27:47,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2023-01-28 01:27:47,773 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 220 transitions. [2023-01-28 01:27:47,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 220 transitions. [2023-01-28 01:27:47,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:27:47,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 220 transitions. [2023-01-28 01:27:47,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 01:27:47,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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 01:27:47,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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 01:27:47,776 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 116 flow. Second operand 3 states and 220 transitions. [2023-01-28 01:27:47,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 232 flow [2023-01-28 01:27:47,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 219 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-01-28 01:27:47,786 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 144 flow [2023-01-28 01:27:47,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2023-01-28 01:27:47,788 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2023-01-28 01:27:47,788 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 144 flow [2023-01-28 01:27:47,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 01:27:47,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:27:47,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:27:47,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 01:27:47,789 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 01:27:47,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:27:47,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1017015802, now seen corresponding path program 1 times [2023-01-28 01:27:47,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:27:47,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379467763] [2023-01-28 01:27:47,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:27:47,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:27:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:27:47,869 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 01:27:47,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:27:47,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379467763] [2023-01-28 01:27:47,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379467763] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:27:47,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:27:47,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 01:27:47,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425330682] [2023-01-28 01:27:47,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:27:47,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 01:27:47,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:27:47,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 01:27:47,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 01:27:47,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 160 [2023-01-28 01:27:47,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 01:27:47,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:27:47,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 160 [2023-01-28 01:27:47,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:27:47,894 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2023-01-28 01:27:47,894 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-01-28 01:27:47,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 27 events. 0/27 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 11/38 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2023-01-28 01:27:47,896 INFO L137 encePairwiseOnDemand]: 156/160 looper letters, 15 selfloop transitions, 4 changer transitions 1/21 dead transitions. [2023-01-28 01:27:47,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 21 transitions, 123 flow [2023-01-28 01:27:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 01:27:47,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 01:27:47,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2023-01-28 01:27:47,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4395833333333333 [2023-01-28 01:27:47,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 211 transitions. [2023-01-28 01:27:47,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 211 transitions. [2023-01-28 01:27:47,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:27:47,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 211 transitions. [2023-01-28 01:27:47,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 01:27:47,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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 01:27:47,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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 01:27:47,900 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 144 flow. Second operand 3 states and 211 transitions. [2023-01-28 01:27:47,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 21 transitions, 123 flow [2023-01-28 01:27:47,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 21 transitions, 109 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-01-28 01:27:47,902 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 73 flow [2023-01-28 01:27:47,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2023-01-28 01:27:47,904 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-01-28 01:27:47,904 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 73 flow [2023-01-28 01:27:47,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 01:27:47,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:27:47,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:27:47,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 01:27:47,905 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 01:27:47,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:27:47,905 INFO L85 PathProgramCache]: Analyzing trace with hash 2095483054, now seen corresponding path program 1 times [2023-01-28 01:27:47,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:27:47,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169984970] [2023-01-28 01:27:47,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:27:47,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:27:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:27:48,073 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 01:27:48,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:27:48,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169984970] [2023-01-28 01:27:48,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169984970] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:27:48,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:27:48,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 01:27:48,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846482333] [2023-01-28 01:27:48,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:27:48,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 01:27:48,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:27:48,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 01:27:48,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-01-28 01:27:48,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 160 [2023-01-28 01:27:48,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 61.833333333333336) internal successors, (371), 6 states have internal predecessors, (371), 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 01:27:48,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:27:48,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 160 [2023-01-28 01:27:48,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:27:48,140 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2023-01-28 01:27:48,140 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:48,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2023-01-28 01:27:48,141 INFO L137 encePairwiseOnDemand]: 153/160 looper letters, 10 selfloop transitions, 2 changer transitions 9/22 dead transitions. [2023-01-28 01:27:48,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 22 transitions, 119 flow [2023-01-28 01:27:48,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 01:27:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 01:27:48,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 382 transitions. [2023-01-28 01:27:48,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39791666666666664 [2023-01-28 01:27:48,143 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 382 transitions. [2023-01-28 01:27:48,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 382 transitions. [2023-01-28 01:27:48,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:27:48,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 382 transitions. [2023-01-28 01:27:48,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 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 01:27:48,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 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 01:27:48,147 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 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 01:27:48,147 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 73 flow. Second operand 6 states and 382 transitions. [2023-01-28 01:27:48,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 22 transitions, 119 flow [2023-01-28 01:27:48,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 22 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 01:27:48,150 INFO L231 Difference]: Finished difference. Result has 33 places, 13 transitions, 47 flow [2023-01-28 01:27:48,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=47, PETRI_PLACES=33, PETRI_TRANSITIONS=13} [2023-01-28 01:27:48,152 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-01-28 01:27:48,152 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 13 transitions, 47 flow [2023-01-28 01:27:48,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.833333333333336) internal successors, (371), 6 states have internal predecessors, (371), 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 01:27:48,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:27:48,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:27:48,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 01:27:48,153 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 01:27:48,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:27:48,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1054583913, now seen corresponding path program 1 times [2023-01-28 01:27:48,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:27:48,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45070655] [2023-01-28 01:27:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:27:48,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:27:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 01:27:48,265 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 01:27:48,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 01:27:48,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45070655] [2023-01-28 01:27:48,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45070655] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 01:27:48,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 01:27:48,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 01:27:48,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404003995] [2023-01-28 01:27:48,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 01:27:48,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 01:27:48,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 01:27:48,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 01:27:48,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-01-28 01:27:48,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 160 [2023-01-28 01:27:48,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 13 transitions, 47 flow. Second operand has 6 states, 6 states have (on average 61.0) internal successors, (366), 6 states have internal predecessors, (366), 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 01:27:48,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 01:27:48,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 160 [2023-01-28 01:27:48,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 01:27:48,321 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-01-28 01:27:48,321 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 01:27:48,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 13 events. 0/13 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-01-28 01:27:48,321 INFO L137 encePairwiseOnDemand]: 153/160 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2023-01-28 01:27:48,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 13 transitions, 70 flow [2023-01-28 01:27:48,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 01:27:48,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 01:27:48,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 426 transitions. [2023-01-28 01:27:48,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38035714285714284 [2023-01-28 01:27:48,323 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 426 transitions. [2023-01-28 01:27:48,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 426 transitions. [2023-01-28 01:27:48,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 01:27:48,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 426 transitions. [2023-01-28 01:27:48,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 60.857142857142854) internal successors, (426), 7 states have internal predecessors, (426), 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 01:27:48,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 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 01:27:48,326 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 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 01:27:48,327 INFO L175 Difference]: Start difference. First operand has 33 places, 13 transitions, 47 flow. Second operand 7 states and 426 transitions. [2023-01-28 01:27:48,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 13 transitions, 70 flow [2023-01-28 01:27:48,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 13 transitions, 60 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-01-28 01:27:48,327 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-01-28 01:27:48,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-01-28 01:27:48,328 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2023-01-28 01:27:48,328 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-01-28 01:27:48,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.0) internal successors, (366), 6 states have internal predecessors, (366), 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 01:27:48,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-01-28 01:27:48,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-01-28 01:27:48,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-01-28 01:27:48,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-01-28 01:27:48,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-01-28 01:27:48,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-01-28 01:27:48,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-01-28 01:27:48,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 01:27:48,332 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:27:48,336 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 01:27:48,336 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 01:27:48,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 01:27:48 BasicIcfg [2023-01-28 01:27:48,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 01:27:48,340 INFO L158 Benchmark]: Toolchain (without parser) took 4654.67ms. Allocated memory was 346.0MB in the beginning and 415.2MB in the end (delta: 69.2MB). Free memory was 286.1MB in the beginning and 340.5MB in the end (delta: -54.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.0GB. [2023-01-28 01:27:48,340 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory was 213.6MB in the beginning and 213.4MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 01:27:48,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.75ms. Allocated memory is still 346.0MB. Free memory was 285.9MB in the beginning and 311.6MB in the end (delta: -25.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.0GB. [2023-01-28 01:27:48,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.98ms. Allocated memory is still 346.0MB. Free memory was 311.6MB in the beginning and 309.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 01:27:48,341 INFO L158 Benchmark]: Boogie Preprocessor took 32.37ms. Allocated memory is still 346.0MB. Free memory was 309.5MB in the beginning and 308.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 01:27:48,341 INFO L158 Benchmark]: RCFGBuilder took 347.00ms. Allocated memory is still 346.0MB. Free memory was 308.0MB in the beginning and 294.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 01:27:48,341 INFO L158 Benchmark]: TraceAbstraction took 3760.13ms. Allocated memory was 346.0MB in the beginning and 415.2MB in the end (delta: 69.2MB). Free memory was 293.8MB in the beginning and 340.5MB in the end (delta: -46.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.0GB. [2023-01-28 01:27:48,343 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 was 213.6MB in the beginning and 213.4MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 447.75ms. Allocated memory is still 346.0MB. Free memory was 285.9MB in the beginning and 311.6MB in the end (delta: -25.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.98ms. Allocated memory is still 346.0MB. Free memory was 311.6MB in the beginning and 309.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.37ms. Allocated memory is still 346.0MB. Free memory was 309.5MB in the beginning and 308.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 347.00ms. Allocated memory is still 346.0MB. Free memory was 308.0MB in the beginning and 294.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3760.13ms. Allocated memory was 346.0MB in the beginning and 415.2MB in the end (delta: 69.2MB). Free memory was 293.8MB in the beginning and 340.5MB in the end (delta: -46.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 76 PlacesBefore, 26 PlacesAfterwards, 76 TransitionsBefore, 24 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 76 TotalNumberOfCompositions, 3026 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1261, independent: 1059, independent conditional: 0, independent unconditional: 1059, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 626, independent: 590, independent conditional: 0, independent unconditional: 590, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1261, independent: 469, independent conditional: 0, independent unconditional: 469, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 626, unknown conditional: 0, unknown unconditional: 626] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 35, Positive conditional cache size: 0, Positive unconditional cache size: 35, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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 - 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, 107 locations, 7 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: 3.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 357 IncrementalHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 357 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 01:27:48,358 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...