./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 00:37:10,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:37:10,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:37:10,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:37:10,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:37:10,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:37:10,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:37:10,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:37:10,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:37:10,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:37:10,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:37:10,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:37:10,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:37:10,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:37:10,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:37:10,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:37:10,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:37:10,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:37:10,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:37:10,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:37:10,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:37:10,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:37:10,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:37:10,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:37:10,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:37:10,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:37:10,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:37:10,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:37:10,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:37:10,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:37:10,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:37:10,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:37:10,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:37:10,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:37:10,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:37:10,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:37:10,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:37:10,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:37:10,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:37:10,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:37:10,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:37:10,313 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:37:10,344 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:37:10,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:37:10,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:37:10,345 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:37:10,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:37:10,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:37:10,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:37:10,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:37:10,347 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:37:10,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:37:10,348 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:37:10,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:37:10,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:37:10,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:37:10,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:37:10,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:37:10,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:37:10,350 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:37:10,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:37:10,350 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:37:10,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:37:10,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:37:10,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:37:10,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:37:10,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:37:10,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:37:10,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:37:10,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:37:10,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:37:10,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:37:10,352 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:37:10,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:37:10,353 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:37:10,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:37:10,353 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:37:10,353 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:37:10,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:37:10,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:37:10,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:37:10,666 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:37:10,668 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:37:10,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-31 00:37:11,834 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:37:12,130 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:37:12,131 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-31 00:37:12,140 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/112a27952/194bc5c375094aa9b52db3a0935d00f5/FLAG92fb76540 [2023-08-31 00:37:12,153 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/112a27952/194bc5c375094aa9b52db3a0935d00f5 [2023-08-31 00:37:12,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:37:12,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:37:12,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:37:12,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:37:12,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:37:12,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f988ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12, skipping insertion in model container [2023-08-31 00:37:12,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:37:12,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:37:12,353 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-08-31 00:37:12,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:37:12,556 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:37:12,569 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-08-31 00:37:12,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:37:12,647 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:37:12,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12 WrapperNode [2023-08-31 00:37:12,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:37:12,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:37:12,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:37:12,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:37:12,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,705 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 143 [2023-08-31 00:37:12,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:37:12,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:37:12,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:37:12,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:37:12,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:37:12,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:37:12,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:37:12,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:37:12,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (1/1) ... [2023-08-31 00:37:12,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:37:12,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:37:12,791 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) [2023-08-31 00:37:12,803 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 [2023-08-31 00:37:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:37:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:37:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:37:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:37:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:37:12,829 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:37:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:37:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:37:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:37:12,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:37:12,830 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 00:37:13,017 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:37:13,018 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:37:13,237 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:37:13,244 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:37:13,245 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:37:13,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:37:13 BoogieIcfgContainer [2023-08-31 00:37:13,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:37:13,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:37:13,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:37:13,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:37:13,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:37:12" (1/3) ... [2023-08-31 00:37:13,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c12a0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:37:13, skipping insertion in model container [2023-08-31 00:37:13,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:12" (2/3) ... [2023-08-31 00:37:13,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c12a0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:37:13, skipping insertion in model container [2023-08-31 00:37:13,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:37:13" (3/3) ... [2023-08-31 00:37:13,254 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-31 00:37:13,261 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:37:13,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:37:13,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-31 00:37:13,270 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:37:13,363 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 00:37:13,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 166 transitions, 337 flow [2023-08-31 00:37:13,492 INFO L130 PetriNetUnfolder]: 8/168 cut-off events. [2023-08-31 00:37:13,493 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:37:13,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 168 events. 8/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 148 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 121. Up to 2 conditions per place. [2023-08-31 00:37:13,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 166 transitions, 337 flow [2023-08-31 00:37:13,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 164 transitions, 331 flow [2023-08-31 00:37:13,514 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:37:13,532 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 164 transitions, 331 flow [2023-08-31 00:37:13,534 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 164 transitions, 331 flow [2023-08-31 00:37:13,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 331 flow [2023-08-31 00:37:13,571 INFO L130 PetriNetUnfolder]: 8/164 cut-off events. [2023-08-31 00:37:13,571 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:37:13,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 164 events. 8/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 140 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 121. Up to 2 conditions per place. [2023-08-31 00:37:13,579 INFO L119 LiptonReduction]: Number of co-enabled transitions 6840 [2023-08-31 00:37:18,041 INFO L134 LiptonReduction]: Checked pairs total: 11483 [2023-08-31 00:37:18,041 INFO L136 LiptonReduction]: Total number of compositions: 172 [2023-08-31 00:37:18,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:37:18,058 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=true, 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;@2083c3b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:37:18,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 00:37:18,063 INFO L130 PetriNetUnfolder]: 1/14 cut-off events. [2023-08-31 00:37:18,063 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:37:18,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:18,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 00:37:18,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:18,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:18,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1949297308, now seen corresponding path program 1 times [2023-08-31 00:37:18,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:18,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817209259] [2023-08-31 00:37:18,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:18,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:18,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:18,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817209259] [2023-08-31 00:37:18,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817209259] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:18,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:18,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 00:37:18,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001636022] [2023-08-31 00:37:18,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:18,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 00:37:18,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:18,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 00:37:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-31 00:37:18,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 338 [2023-08-31 00:37:18,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 149.5) internal successors, (598), 4 states have internal predecessors, (598), 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) [2023-08-31 00:37:18,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:18,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 338 [2023-08-31 00:37:18,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:18,712 INFO L130 PetriNetUnfolder]: 119/311 cut-off events. [2023-08-31 00:37:18,712 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:37:18,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 311 events. 119/311 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1290 event pairs, 10 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 563. Up to 169 conditions per place. [2023-08-31 00:37:18,717 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 34 selfloop transitions, 5 changer transitions 11/55 dead transitions. [2023-08-31 00:37:18,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 55 transitions, 213 flow [2023-08-31 00:37:18,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 00:37:18,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 00:37:18,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 797 transitions. [2023-08-31 00:37:18,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47159763313609465 [2023-08-31 00:37:18,739 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 797 transitions. [2023-08-31 00:37:18,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 797 transitions. [2023-08-31 00:37:18,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:18,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 797 transitions. [2023-08-31 00:37:18,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 159.4) internal successors, (797), 5 states have internal predecessors, (797), 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) [2023-08-31 00:37:18,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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) [2023-08-31 00:37:18,760 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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) [2023-08-31 00:37:18,762 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 67 flow. Second operand 5 states and 797 transitions. [2023-08-31 00:37:18,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 55 transitions, 213 flow [2023-08-31 00:37:18,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 55 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 00:37:18,766 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 83 flow [2023-08-31 00:37:18,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2023-08-31 00:37:18,773 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2023-08-31 00:37:18,773 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 83 flow [2023-08-31 00:37:18,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 149.5) internal successors, (598), 4 states have internal predecessors, (598), 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) [2023-08-31 00:37:18,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:18,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:18,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:37:18,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:18,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:18,778 INFO L85 PathProgramCache]: Analyzing trace with hash 668944993, now seen corresponding path program 1 times [2023-08-31 00:37:18,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:18,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553451323] [2023-08-31 00:37:18,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:18,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:18,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:18,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553451323] [2023-08-31 00:37:18,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553451323] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:18,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:18,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 00:37:18,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135332597] [2023-08-31 00:37:18,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:18,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 00:37:18,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:18,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 00:37:18,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:37:19,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 338 [2023-08-31 00:37:19,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 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) [2023-08-31 00:37:19,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:19,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 338 [2023-08-31 00:37:19,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:19,182 INFO L130 PetriNetUnfolder]: 94/257 cut-off events. [2023-08-31 00:37:19,182 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-31 00:37:19,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 257 events. 94/257 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1059 event pairs, 32 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 537. Up to 120 conditions per place. [2023-08-31 00:37:19,185 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 40 selfloop transitions, 9 changer transitions 0/54 dead transitions. [2023-08-31 00:37:19,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 54 transitions, 240 flow [2023-08-31 00:37:19,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 00:37:19,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 00:37:19,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1212 transitions. [2023-08-31 00:37:19,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44822485207100593 [2023-08-31 00:37:19,190 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1212 transitions. [2023-08-31 00:37:19,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1212 transitions. [2023-08-31 00:37:19,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:19,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1212 transitions. [2023-08-31 00:37:19,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 151.5) internal successors, (1212), 8 states have internal predecessors, (1212), 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) [2023-08-31 00:37:19,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-08-31 00:37:19,199 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-08-31 00:37:19,199 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 83 flow. Second operand 8 states and 1212 transitions. [2023-08-31 00:37:19,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 54 transitions, 240 flow [2023-08-31 00:37:19,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 54 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 00:37:19,203 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 126 flow [2023-08-31 00:37:19,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=126, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2023-08-31 00:37:19,204 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2023-08-31 00:37:19,205 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 126 flow [2023-08-31 00:37:19,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 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) [2023-08-31 00:37:19,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:19,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:19,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 00:37:19,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:19,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:19,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1660388124, now seen corresponding path program 1 times [2023-08-31 00:37:19,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:19,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892334119] [2023-08-31 00:37:19,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:19,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:19,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:19,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:19,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892334119] [2023-08-31 00:37:19,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892334119] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:19,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:19,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 00:37:19,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576452479] [2023-08-31 00:37:19,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:19,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:37:19,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:19,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:37:19,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:37:19,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 338 [2023-08-31 00:37:19,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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) [2023-08-31 00:37:19,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:19,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 338 [2023-08-31 00:37:19,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:19,417 INFO L130 PetriNetUnfolder]: 84/241 cut-off events. [2023-08-31 00:37:19,417 INFO L131 PetriNetUnfolder]: For 95/95 co-relation queries the response was YES. [2023-08-31 00:37:19,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 241 events. 84/241 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 970 event pairs, 31 based on Foata normal form. 15/256 useless extension candidates. Maximal degree in co-relation 550. Up to 125 conditions per place. [2023-08-31 00:37:19,420 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 32 selfloop transitions, 8 changer transitions 0/42 dead transitions. [2023-08-31 00:37:19,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 227 flow [2023-08-31 00:37:19,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:37:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:37:19,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2023-08-31 00:37:19,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46449704142011833 [2023-08-31 00:37:19,422 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 471 transitions. [2023-08-31 00:37:19,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 471 transitions. [2023-08-31 00:37:19,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:19,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 471 transitions. [2023-08-31 00:37:19,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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) [2023-08-31 00:37:19,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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) [2023-08-31 00:37:19,427 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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) [2023-08-31 00:37:19,427 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 126 flow. Second operand 3 states and 471 transitions. [2023-08-31 00:37:19,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 227 flow [2023-08-31 00:37:19,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 42 transitions, 205 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-08-31 00:37:19,431 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 127 flow [2023-08-31 00:37:19,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2023-08-31 00:37:19,432 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-08-31 00:37:19,432 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 127 flow [2023-08-31 00:37:19,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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) [2023-08-31 00:37:19,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:19,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:19,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 00:37:19,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:19,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:19,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1388907553, now seen corresponding path program 1 times [2023-08-31 00:37:19,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:19,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060034751] [2023-08-31 00:37:19,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:19,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:19,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:19,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060034751] [2023-08-31 00:37:19,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060034751] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:19,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:19,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 00:37:19,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035688334] [2023-08-31 00:37:19,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:19,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 00:37:19,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:19,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 00:37:19,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-31 00:37:19,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 338 [2023-08-31 00:37:19,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 127 flow. Second operand has 6 states, 6 states have (on average 144.66666666666666) internal successors, (868), 6 states have internal predecessors, (868), 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) [2023-08-31 00:37:19,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:19,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 338 [2023-08-31 00:37:19,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:19,783 INFO L130 PetriNetUnfolder]: 63/212 cut-off events. [2023-08-31 00:37:19,784 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-08-31 00:37:19,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 212 events. 63/212 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 925 event pairs, 31 based on Foata normal form. 10/217 useless extension candidates. Maximal degree in co-relation 547. Up to 110 conditions per place. [2023-08-31 00:37:19,785 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 41 selfloop transitions, 10 changer transitions 1/57 dead transitions. [2023-08-31 00:37:19,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 57 transitions, 311 flow [2023-08-31 00:37:19,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 00:37:19,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 00:37:19,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1196 transitions. [2023-08-31 00:37:19,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4423076923076923 [2023-08-31 00:37:19,789 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1196 transitions. [2023-08-31 00:37:19,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1196 transitions. [2023-08-31 00:37:19,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:19,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1196 transitions. [2023-08-31 00:37:19,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 149.5) internal successors, (1196), 8 states have internal predecessors, (1196), 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) [2023-08-31 00:37:19,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-08-31 00:37:19,798 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-08-31 00:37:19,798 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 127 flow. Second operand 8 states and 1196 transitions. [2023-08-31 00:37:19,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 57 transitions, 311 flow [2023-08-31 00:37:19,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 57 transitions, 297 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 00:37:19,801 INFO L231 Difference]: Finished difference. Result has 50 places, 38 transitions, 178 flow [2023-08-31 00:37:19,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=178, PETRI_PLACES=50, PETRI_TRANSITIONS=38} [2023-08-31 00:37:19,801 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 17 predicate places. [2023-08-31 00:37:19,802 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 38 transitions, 178 flow [2023-08-31 00:37:19,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.66666666666666) internal successors, (868), 6 states have internal predecessors, (868), 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) [2023-08-31 00:37:19,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:19,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:19,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 00:37:19,803 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:19,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:19,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1288531683, now seen corresponding path program 1 times [2023-08-31 00:37:19,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:19,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479760366] [2023-08-31 00:37:19,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:19,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:19,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479760366] [2023-08-31 00:37:19,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479760366] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:19,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:19,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 00:37:19,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591690043] [2023-08-31 00:37:19,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:19,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 00:37:19,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:19,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 00:37:19,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:37:19,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 338 [2023-08-31 00:37:19,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-08-31 00:37:19,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:19,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 338 [2023-08-31 00:37:19,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:20,104 INFO L130 PetriNetUnfolder]: 62/211 cut-off events. [2023-08-31 00:37:20,105 INFO L131 PetriNetUnfolder]: For 140/142 co-relation queries the response was YES. [2023-08-31 00:37:20,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 211 events. 62/211 cut-off events. For 140/142 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 919 event pairs, 29 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 593. Up to 116 conditions per place. [2023-08-31 00:37:20,106 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 39 selfloop transitions, 8 changer transitions 0/54 dead transitions. [2023-08-31 00:37:20,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 54 transitions, 335 flow [2023-08-31 00:37:20,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 00:37:20,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 00:37:20,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 766 transitions. [2023-08-31 00:37:20,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4532544378698225 [2023-08-31 00:37:20,109 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 766 transitions. [2023-08-31 00:37:20,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 766 transitions. [2023-08-31 00:37:20,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:20,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 766 transitions. [2023-08-31 00:37:20,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 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) [2023-08-31 00:37:20,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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) [2023-08-31 00:37:20,114 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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) [2023-08-31 00:37:20,114 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 178 flow. Second operand 5 states and 766 transitions. [2023-08-31 00:37:20,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 54 transitions, 335 flow [2023-08-31 00:37:20,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 54 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 00:37:20,117 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 204 flow [2023-08-31 00:37:20,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=204, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2023-08-31 00:37:20,118 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 21 predicate places. [2023-08-31 00:37:20,118 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 204 flow [2023-08-31 00:37:20,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-08-31 00:37:20,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:20,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:20,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 00:37:20,119 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:20,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:20,120 INFO L85 PathProgramCache]: Analyzing trace with hash 344959075, now seen corresponding path program 1 times [2023-08-31 00:37:20,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:20,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350835317] [2023-08-31 00:37:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:20,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:20,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:20,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:20,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350835317] [2023-08-31 00:37:20,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350835317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:20,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:20,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 00:37:20,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610587814] [2023-08-31 00:37:20,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:20,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 00:37:20,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:20,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 00:37:20,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:37:20,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 338 [2023-08-31 00:37:20,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 148.6) internal successors, (743), 5 states have internal predecessors, (743), 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) [2023-08-31 00:37:20,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:20,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 338 [2023-08-31 00:37:20,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:20,362 INFO L130 PetriNetUnfolder]: 58/197 cut-off events. [2023-08-31 00:37:20,363 INFO L131 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2023-08-31 00:37:20,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 197 events. 58/197 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 837 event pairs, 32 based on Foata normal form. 5/198 useless extension candidates. Maximal degree in co-relation 594. Up to 109 conditions per place. [2023-08-31 00:37:20,364 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 40 selfloop transitions, 10 changer transitions 1/56 dead transitions. [2023-08-31 00:37:20,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 374 flow [2023-08-31 00:37:20,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 00:37:20,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 00:37:20,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1070 transitions. [2023-08-31 00:37:20,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.452240067624683 [2023-08-31 00:37:20,368 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1070 transitions. [2023-08-31 00:37:20,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1070 transitions. [2023-08-31 00:37:20,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:20,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1070 transitions. [2023-08-31 00:37:20,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 152.85714285714286) internal successors, (1070), 7 states have internal predecessors, (1070), 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) [2023-08-31 00:37:20,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 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) [2023-08-31 00:37:20,374 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 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) [2023-08-31 00:37:20,374 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 204 flow. Second operand 7 states and 1070 transitions. [2023-08-31 00:37:20,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 374 flow [2023-08-31 00:37:20,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 56 transitions, 359 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-31 00:37:20,378 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 247 flow [2023-08-31 00:37:20,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=247, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2023-08-31 00:37:20,381 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 28 predicate places. [2023-08-31 00:37:20,381 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 247 flow [2023-08-31 00:37:20,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 148.6) internal successors, (743), 5 states have internal predecessors, (743), 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) [2023-08-31 00:37:20,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:20,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:20,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 00:37:20,382 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:20,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:20,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1328339176, now seen corresponding path program 1 times [2023-08-31 00:37:20,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:20,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096764397] [2023-08-31 00:37:20,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:20,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:20,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:20,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:20,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096764397] [2023-08-31 00:37:20,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096764397] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:20,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:20,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 00:37:20,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050345282] [2023-08-31 00:37:20,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:20,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 00:37:20,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:20,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 00:37:20,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-31 00:37:20,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 338 [2023-08-31 00:37:20,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 145.16666666666666) internal successors, (871), 6 states have internal predecessors, (871), 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) [2023-08-31 00:37:20,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:20,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 338 [2023-08-31 00:37:20,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:20,823 INFO L130 PetriNetUnfolder]: 57/187 cut-off events. [2023-08-31 00:37:20,823 INFO L131 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2023-08-31 00:37:20,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 187 events. 57/187 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 752 event pairs, 17 based on Foata normal form. 4/190 useless extension candidates. Maximal degree in co-relation 620. Up to 88 conditions per place. [2023-08-31 00:37:20,825 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 38 selfloop transitions, 8 changer transitions 3/54 dead transitions. [2023-08-31 00:37:20,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 407 flow [2023-08-31 00:37:20,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 00:37:20,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 00:37:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 604 transitions. [2023-08-31 00:37:20,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4467455621301775 [2023-08-31 00:37:20,828 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 604 transitions. [2023-08-31 00:37:20,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 604 transitions. [2023-08-31 00:37:20,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:20,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 604 transitions. [2023-08-31 00:37:20,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 00:37:20,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 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) [2023-08-31 00:37:20,833 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 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) [2023-08-31 00:37:20,833 INFO L175 Difference]: Start difference. First operand has 61 places, 43 transitions, 247 flow. Second operand 4 states and 604 transitions. [2023-08-31 00:37:20,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 407 flow [2023-08-31 00:37:20,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 395 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-31 00:37:20,837 INFO L231 Difference]: Finished difference. Result has 61 places, 41 transitions, 243 flow [2023-08-31 00:37:20,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=243, PETRI_PLACES=61, PETRI_TRANSITIONS=41} [2023-08-31 00:37:20,838 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 28 predicate places. [2023-08-31 00:37:20,838 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 41 transitions, 243 flow [2023-08-31 00:37:20,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.16666666666666) internal successors, (871), 6 states have internal predecessors, (871), 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) [2023-08-31 00:37:20,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:20,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:20,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 00:37:20,841 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:20,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:20,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1671539549, now seen corresponding path program 1 times [2023-08-31 00:37:20,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:20,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419334078] [2023-08-31 00:37:20,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:20,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:21,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:21,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:21,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419334078] [2023-08-31 00:37:21,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419334078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:21,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:21,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 00:37:21,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214759082] [2023-08-31 00:37:21,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:21,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 00:37:21,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 00:37:21,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 00:37:21,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 338 [2023-08-31 00:37:21,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 41 transitions, 243 flow. Second operand has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 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) [2023-08-31 00:37:21,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:21,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 338 [2023-08-31 00:37:21,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:21,182 INFO L130 PetriNetUnfolder]: 46/163 cut-off events. [2023-08-31 00:37:21,182 INFO L131 PetriNetUnfolder]: For 188/188 co-relation queries the response was YES. [2023-08-31 00:37:21,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 163 events. 46/163 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 613 event pairs, 7 based on Foata normal form. 6/168 useless extension candidates. Maximal degree in co-relation 556. Up to 58 conditions per place. [2023-08-31 00:37:21,183 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 36 selfloop transitions, 8 changer transitions 1/53 dead transitions. [2023-08-31 00:37:21,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 53 transitions, 389 flow [2023-08-31 00:37:21,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 00:37:21,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 00:37:21,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1191 transitions. [2023-08-31 00:37:21,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4404585798816568 [2023-08-31 00:37:21,187 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1191 transitions. [2023-08-31 00:37:21,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1191 transitions. [2023-08-31 00:37:21,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:21,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1191 transitions. [2023-08-31 00:37:21,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 148.875) internal successors, (1191), 8 states have internal predecessors, (1191), 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) [2023-08-31 00:37:21,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-08-31 00:37:21,197 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-08-31 00:37:21,197 INFO L175 Difference]: Start difference. First operand has 61 places, 41 transitions, 243 flow. Second operand 8 states and 1191 transitions. [2023-08-31 00:37:21,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 53 transitions, 389 flow [2023-08-31 00:37:21,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 53 transitions, 373 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 00:37:21,201 INFO L231 Difference]: Finished difference. Result has 62 places, 40 transitions, 239 flow [2023-08-31 00:37:21,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=239, PETRI_PLACES=62, PETRI_TRANSITIONS=40} [2023-08-31 00:37:21,204 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 29 predicate places. [2023-08-31 00:37:21,204 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 40 transitions, 239 flow [2023-08-31 00:37:21,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 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) [2023-08-31 00:37:21,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:21,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:21,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 00:37:21,205 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:21,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:21,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1411106432, now seen corresponding path program 1 times [2023-08-31 00:37:21,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:21,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261695653] [2023-08-31 00:37:21,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:21,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:21,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:21,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:21,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261695653] [2023-08-31 00:37:21,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261695653] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:21,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:21,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 00:37:21,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752559836] [2023-08-31 00:37:21,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:21,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 00:37:21,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:21,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 00:37:21,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-31 00:37:21,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 338 [2023-08-31 00:37:21,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 40 transitions, 239 flow. Second operand has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 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) [2023-08-31 00:37:21,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:21,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 338 [2023-08-31 00:37:21,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:21,650 INFO L130 PetriNetUnfolder]: 42/153 cut-off events. [2023-08-31 00:37:21,651 INFO L131 PetriNetUnfolder]: For 201/201 co-relation queries the response was YES. [2023-08-31 00:37:21,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 153 events. 42/153 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 550 event pairs, 7 based on Foata normal form. 6/158 useless extension candidates. Maximal degree in co-relation 524. Up to 40 conditions per place. [2023-08-31 00:37:21,652 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 38 selfloop transitions, 11 changer transitions 2/59 dead transitions. [2023-08-31 00:37:21,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 59 transitions, 427 flow [2023-08-31 00:37:21,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 00:37:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 00:37:21,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1749 transitions. [2023-08-31 00:37:21,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4312130177514793 [2023-08-31 00:37:21,657 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1749 transitions. [2023-08-31 00:37:21,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1749 transitions. [2023-08-31 00:37:21,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:21,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1749 transitions. [2023-08-31 00:37:21,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 145.75) internal successors, (1749), 12 states have internal predecessors, (1749), 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) [2023-08-31 00:37:21,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 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) [2023-08-31 00:37:21,668 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 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) [2023-08-31 00:37:21,668 INFO L175 Difference]: Start difference. First operand has 62 places, 40 transitions, 239 flow. Second operand 12 states and 1749 transitions. [2023-08-31 00:37:21,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 59 transitions, 427 flow [2023-08-31 00:37:21,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 59 transitions, 399 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-31 00:37:21,671 INFO L231 Difference]: Finished difference. Result has 64 places, 40 transitions, 234 flow [2023-08-31 00:37:21,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=234, PETRI_PLACES=64, PETRI_TRANSITIONS=40} [2023-08-31 00:37:21,671 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2023-08-31 00:37:21,672 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 40 transitions, 234 flow [2023-08-31 00:37:21,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 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) [2023-08-31 00:37:21,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:21,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:21,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 00:37:21,673 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:21,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:21,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1136432958, now seen corresponding path program 1 times [2023-08-31 00:37:21,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:21,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864270831] [2023-08-31 00:37:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:21,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:21,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:21,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:21,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864270831] [2023-08-31 00:37:21,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864270831] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:21,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:21,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 00:37:21,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484058928] [2023-08-31 00:37:21,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:21,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 00:37:21,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:21,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 00:37:21,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:37:21,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 338 [2023-08-31 00:37:21,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 40 transitions, 234 flow. Second operand has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 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) [2023-08-31 00:37:21,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:21,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 338 [2023-08-31 00:37:21,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:21,976 INFO L130 PetriNetUnfolder]: 41/149 cut-off events. [2023-08-31 00:37:21,976 INFO L131 PetriNetUnfolder]: For 192/196 co-relation queries the response was YES. [2023-08-31 00:37:21,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 149 events. 41/149 cut-off events. For 192/196 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 508 event pairs, 18 based on Foata normal form. 7/154 useless extension candidates. Maximal degree in co-relation 510. Up to 57 conditions per place. [2023-08-31 00:37:21,977 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 32 selfloop transitions, 13 changer transitions 5/55 dead transitions. [2023-08-31 00:37:21,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 55 transitions, 397 flow [2023-08-31 00:37:21,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 00:37:21,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 00:37:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1039 transitions. [2023-08-31 00:37:21,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43913778529163144 [2023-08-31 00:37:21,981 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1039 transitions. [2023-08-31 00:37:21,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1039 transitions. [2023-08-31 00:37:21,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:21,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1039 transitions. [2023-08-31 00:37:21,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 148.42857142857142) internal successors, (1039), 7 states have internal predecessors, (1039), 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) [2023-08-31 00:37:21,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 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) [2023-08-31 00:37:21,987 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 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) [2023-08-31 00:37:21,987 INFO L175 Difference]: Start difference. First operand has 64 places, 40 transitions, 234 flow. Second operand 7 states and 1039 transitions. [2023-08-31 00:37:21,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 55 transitions, 397 flow [2023-08-31 00:37:21,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 55 transitions, 372 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-08-31 00:37:21,990 INFO L231 Difference]: Finished difference. Result has 63 places, 39 transitions, 240 flow [2023-08-31 00:37:21,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=240, PETRI_PLACES=63, PETRI_TRANSITIONS=39} [2023-08-31 00:37:21,991 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2023-08-31 00:37:21,991 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 39 transitions, 240 flow [2023-08-31 00:37:21,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 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) [2023-08-31 00:37:21,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:21,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:21,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 00:37:21,992 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:37:21,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:21,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1190116540, now seen corresponding path program 1 times [2023-08-31 00:37:21,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:21,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738513005] [2023-08-31 00:37:21,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:21,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:22,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:22,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:22,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738513005] [2023-08-31 00:37:22,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738513005] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:22,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:22,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 00:37:22,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283439039] [2023-08-31 00:37:22,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:22,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 00:37:22,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:22,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 00:37:22,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-31 00:37:22,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 338 [2023-08-31 00:37:22,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 39 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 146.33333333333334) internal successors, (878), 6 states have internal predecessors, (878), 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) [2023-08-31 00:37:22,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:22,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 338 [2023-08-31 00:37:22,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:22,370 INFO L130 PetriNetUnfolder]: 22/96 cut-off events. [2023-08-31 00:37:22,370 INFO L131 PetriNetUnfolder]: For 139/139 co-relation queries the response was YES. [2023-08-31 00:37:22,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 96 events. 22/96 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 267 event pairs, 4 based on Foata normal form. 15/111 useless extension candidates. Maximal degree in co-relation 335. Up to 78 conditions per place. [2023-08-31 00:37:22,370 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-08-31 00:37:22,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 42 transitions, 314 flow [2023-08-31 00:37:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 00:37:22,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 00:37:22,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 600 transitions. [2023-08-31 00:37:22,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4437869822485207 [2023-08-31 00:37:22,373 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 600 transitions. [2023-08-31 00:37:22,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 600 transitions. [2023-08-31 00:37:22,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:22,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 600 transitions. [2023-08-31 00:37:22,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2023-08-31 00:37:22,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 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) [2023-08-31 00:37:22,377 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 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) [2023-08-31 00:37:22,377 INFO L175 Difference]: Start difference. First operand has 63 places, 39 transitions, 240 flow. Second operand 4 states and 600 transitions. [2023-08-31 00:37:22,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 42 transitions, 314 flow [2023-08-31 00:37:22,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 42 transitions, 289 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-08-31 00:37:22,378 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2023-08-31 00:37:22,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2023-08-31 00:37:22,379 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 23 predicate places. [2023-08-31 00:37:22,379 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2023-08-31 00:37:22,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 146.33333333333334) internal successors, (878), 6 states have internal predecessors, (878), 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) [2023-08-31 00:37:22,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-08-31 00:37:22,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-08-31 00:37:22,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-08-31 00:37:22,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-08-31 00:37:22,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-08-31 00:37:22,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-08-31 00:37:22,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-08-31 00:37:22,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 00:37:22,383 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:22,387 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:37:22,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:37:22,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:37:22 BasicIcfg [2023-08-31 00:37:22,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:37:22,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:37:22,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:37:22,391 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:37:22,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:37:13" (3/4) ... [2023-08-31 00:37:22,393 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 00:37:22,398 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 00:37:22,401 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-31 00:37:22,401 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-31 00:37:22,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 00:37:22,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 00:37:22,446 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:37:22,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:37:22,447 INFO L158 Benchmark]: Toolchain (without parser) took 10290.40ms. Allocated memory was 83.9MB in the beginning and 151.0MB in the end (delta: 67.1MB). Free memory was 60.8MB in the beginning and 51.7MB in the end (delta: 9.2MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2023-08-31 00:37:22,447 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 38.8MB in the end (delta: 57.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:37:22,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.82ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 62.5MB in the end (delta: -1.9MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2023-08-31 00:37:22,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.76ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 60.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:37:22,448 INFO L158 Benchmark]: Boogie Preprocessor took 52.73ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 58.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:37:22,449 INFO L158 Benchmark]: RCFGBuilder took 487.74ms. Allocated memory is still 83.9MB. Free memory was 58.7MB in the beginning and 41.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-31 00:37:22,449 INFO L158 Benchmark]: TraceAbstraction took 9141.38ms. Allocated memory was 83.9MB in the beginning and 151.0MB in the end (delta: 67.1MB). Free memory was 40.3MB in the beginning and 54.8MB in the end (delta: -14.5MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2023-08-31 00:37:22,449 INFO L158 Benchmark]: Witness Printer took 56.18ms. Allocated memory is still 151.0MB. Free memory was 54.8MB in the beginning and 51.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:37:22,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 38.8MB in the end (delta: 57.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.82ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 62.5MB in the end (delta: -1.9MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.76ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 60.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.73ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 58.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.74ms. Allocated memory is still 83.9MB. Free memory was 58.7MB in the beginning and 41.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9141.38ms. Allocated memory was 83.9MB in the beginning and 151.0MB in the end (delta: 67.1MB). Free memory was 40.3MB in the beginning and 54.8MB in the end (delta: -14.5MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * Witness Printer took 56.18ms. Allocated memory is still 151.0MB. Free memory was 54.8MB in the beginning and 51.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 160 PlacesBefore, 33 PlacesAfterwards, 164 TransitionsBefore, 32 TransitionsAfterwards, 6840 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 102 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 5 ChoiceCompositions, 172 TotalNumberOfCompositions, 11483 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6171, independent: 5919, independent conditional: 0, independent unconditional: 5919, dependent: 252, dependent conditional: 0, dependent unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3845, independent: 3793, independent conditional: 0, independent unconditional: 3793, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6171, independent: 2126, independent conditional: 0, independent unconditional: 2126, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 3845, unknown conditional: 0, unknown unconditional: 3845] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 230 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: 9.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1185 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 841 mSDsluCounter, 484 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 380 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2009 IncrementalHoareTripleChecker+Invalid, 2102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 104 mSDtfsCounter, 2009 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=6, InterpolantAutomatonStates: 71, 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, 1.7s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 743 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 00:37:22,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE