./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/13-privatized_40-traces-ex-6_true.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 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 17:41:53,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:41:53,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:41:53,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:41:53,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:41:53,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:41:53,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:41:53,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:41:53,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:41:53,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:41:53,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:41:53,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:41:53,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:41:53,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:41:53,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:41:53,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:41:53,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:41:53,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:41:53,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:41:53,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:41:53,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:41:53,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:41:53,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:41:53,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:41:53,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:41:53,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:41:53,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:41:53,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:41:53,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:41:53,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:41:53,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:41:53,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:41:53,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:41:53,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:41:53,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:41:53,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:41:53,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:41:53,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:41:53,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:41:53,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:41:53,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:41:53,268 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:41:53,301 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:41:53,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:41:53,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:41:53,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:41:53,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:41:53,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:41:53,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:41:53,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:41:53,304 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:41:53,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:41:53,305 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:41:53,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:41:53,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:41:53,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:41:53,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:41:53,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:41:53,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:41:53,307 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:41:53,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:41:53,307 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:41:53,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:41:53,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:41:53,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:41:53,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:41:53,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:41:53,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:41:53,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:41:53,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:41:53,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:41:53,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:41:53,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:41:53,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:41:53,310 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:41:53,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:41:53,310 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:41:53,310 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:41:53,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:41:53,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:41:53,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:41:53,650 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:41:53,650 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:41:53,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2023-08-30 17:41:54,865 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:41:55,120 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:41:55,120 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2023-08-30 17:41:55,135 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7226c02c/f9c69e4c837848e5ba53cbdf99ca79ba/FLAGcf79bb52a [2023-08-30 17:41:55,153 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7226c02c/f9c69e4c837848e5ba53cbdf99ca79ba [2023-08-30 17:41:55,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:41:55,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:41:55,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:41:55,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:41:55,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:41:55,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a3470f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55, skipping insertion in model container [2023-08-30 17:41:55,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:41:55,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:41:55,367 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2023-08-30 17:41:55,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:41:55,531 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:41:55,542 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2023-08-30 17:41:55,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:41:55,626 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:41:55,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55 WrapperNode [2023-08-30 17:41:55,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:41:55,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:41:55,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:41:55,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:41:55,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,682 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-08-30 17:41:55,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:41:55,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:41:55,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:41:55,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:41:55,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,715 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:41:55,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:41:55,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:41:55,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:41:55,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (1/1) ... [2023-08-30 17:41:55,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:41:55,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:41:55,750 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) [2023-08-30 17:41:55,761 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 [2023-08-30 17:41:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:41:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 17:41:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:41:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:41:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 17:41:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 17:41:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:41:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:41:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:41:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:41:55,785 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 17:41:55,900 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:41:55,902 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:41:56,091 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:41:56,097 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:41:56,098 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 17:41:56,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:41:56 BoogieIcfgContainer [2023-08-30 17:41:56,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:41:56,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:41:56,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:41:56,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:41:56,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:41:55" (1/3) ... [2023-08-30 17:41:56,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30999210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:41:56, skipping insertion in model container [2023-08-30 17:41:56,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:55" (2/3) ... [2023-08-30 17:41:56,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30999210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:41:56, skipping insertion in model container [2023-08-30 17:41:56,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:41:56" (3/3) ... [2023-08-30 17:41:56,106 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2023-08-30 17:41:56,112 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:41:56,120 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:41:56,120 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 17:41:56,121 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:41:56,173 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 17:41:56,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 127 flow [2023-08-30 17:41:56,233 INFO L130 PetriNetUnfolder]: 1/60 cut-off events. [2023-08-30 17:41:56,233 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:56,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2023-08-30 17:41:56,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 61 transitions, 127 flow [2023-08-30 17:41:56,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2023-08-30 17:41:56,253 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:41:56,263 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2023-08-30 17:41:56,271 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2023-08-30 17:41:56,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2023-08-30 17:41:56,299 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2023-08-30 17:41:56,301 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:56,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 17:41:56,302 INFO L119 LiptonReduction]: Number of co-enabled transitions 264 [2023-08-30 17:41:58,376 INFO L134 LiptonReduction]: Checked pairs total: 684 [2023-08-30 17:41:58,376 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-08-30 17:41:58,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:41:58,401 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;@4789eeed, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:41:58,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-30 17:41:58,406 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 17:41:58,407 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:58,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:41:58,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 17:41:58,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:41:58,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:41:58,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1850714120, now seen corresponding path program 1 times [2023-08-30 17:41:58,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:41:58,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795566948] [2023-08-30 17:41:58,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:41:58,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:41:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:41:58,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:41:58,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:41:58,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795566948] [2023-08-30 17:41:58,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795566948] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:41:58,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:41:58,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 17:41:58,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649097632] [2023-08-30 17:41:58,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:41:58,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:41:58,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:41:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:41:58,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:41:58,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 101 [2023-08-30 17:41:58,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 27 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2023-08-30 17:41:58,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:41:58,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 101 [2023-08-30 17:41:58,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:41:58,781 INFO L130 PetriNetUnfolder]: 15/47 cut-off events. [2023-08-30 17:41:58,781 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:58,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 47 events. 15/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 12 based on Foata normal form. 5/52 useless extension candidates. Maximal degree in co-relation 86. Up to 35 conditions per place. [2023-08-30 17:41:58,784 INFO L137 encePairwiseOnDemand]: 97/101 looper letters, 11 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2023-08-30 17:41:58,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 15 transitions, 61 flow [2023-08-30 17:41:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:41:58,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:41:58,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2023-08-30 17:41:58,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.594059405940594 [2023-08-30 17:41:58,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 180 transitions. [2023-08-30 17:41:58,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 180 transitions. [2023-08-30 17:41:58,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:41:58,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 180 transitions. [2023-08-30 17:41:58,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2023-08-30 17:41:58,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-08-30 17:41:58,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-08-30 17:41:58,815 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 27 flow. Second operand 3 states and 180 transitions. [2023-08-30 17:41:58,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 15 transitions, 61 flow [2023-08-30 17:41:58,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 15 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:41:58,818 INFO L231 Difference]: Finished difference. Result has 18 places, 12 transitions, 37 flow [2023-08-30 17:41:58,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2023-08-30 17:41:58,823 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places. [2023-08-30 17:41:58,824 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 37 flow [2023-08-30 17:41:58,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2023-08-30 17:41:58,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:41:58,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:41:58,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:41:58,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:41:58,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:41:58,826 INFO L85 PathProgramCache]: Analyzing trace with hash -4922545, now seen corresponding path program 1 times [2023-08-30 17:41:58,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:41:58,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686159857] [2023-08-30 17:41:58,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:41:58,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:41:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:41:58,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:41:58,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:41:58,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686159857] [2023-08-30 17:41:58,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686159857] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:41:58,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:41:58,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 17:41:58,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168569679] [2023-08-30 17:41:58,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:41:58,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:41:58,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:41:58,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:41:58,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:41:58,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 101 [2023-08-30 17:41:58,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-08-30 17:41:58,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:41:58,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 101 [2023-08-30 17:41:58,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:41:58,969 INFO L130 PetriNetUnfolder]: 5/32 cut-off events. [2023-08-30 17:41:58,970 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 17:41:58,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 32 events. 5/32 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 59 event pairs, 2 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 64. Up to 17 conditions per place. [2023-08-30 17:41:58,971 INFO L137 encePairwiseOnDemand]: 96/101 looper letters, 7 selfloop transitions, 4 changer transitions 3/16 dead transitions. [2023-08-30 17:41:58,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 16 transitions, 75 flow [2023-08-30 17:41:58,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:41:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:41:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2023-08-30 17:41:58,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5676567656765676 [2023-08-30 17:41:58,976 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2023-08-30 17:41:58,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2023-08-30 17:41:58,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:41:58,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2023-08-30 17:41:58,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2023-08-30 17:41:58,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-08-30 17:41:58,981 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-08-30 17:41:58,981 INFO L175 Difference]: Start difference. First operand has 18 places, 12 transitions, 37 flow. Second operand 3 states and 172 transitions. [2023-08-30 17:41:58,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 16 transitions, 75 flow [2023-08-30 17:41:58,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 16 transitions, 69 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 17:41:58,983 INFO L231 Difference]: Finished difference. Result has 19 places, 12 transitions, 45 flow [2023-08-30 17:41:58,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=19, PETRI_TRANSITIONS=12} [2023-08-30 17:41:58,984 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 3 predicate places. [2023-08-30 17:41:58,985 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 12 transitions, 45 flow [2023-08-30 17:41:58,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-08-30 17:41:58,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:41:58,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:41:58,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 17:41:58,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:41:58,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:41:58,986 INFO L85 PathProgramCache]: Analyzing trace with hash 128675675, now seen corresponding path program 2 times [2023-08-30 17:41:58,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:41:58,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969994773] [2023-08-30 17:41:58,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:41:58,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:41:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:41:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:41:59,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:41:59,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969994773] [2023-08-30 17:41:59,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969994773] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:41:59,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:41:59,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 17:41:59,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189164785] [2023-08-30 17:41:59,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:41:59,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 17:41:59,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:41:59,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 17:41:59,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 17:41:59,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 101 [2023-08-30 17:41:59,264 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 45 flow. Second operand has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 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) [2023-08-30 17:41:59,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:41:59,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 101 [2023-08-30 17:41:59,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:41:59,298 INFO L130 PetriNetUnfolder]: 1/22 cut-off events. [2023-08-30 17:41:59,298 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2023-08-30 17:41:59,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 22 events. 1/22 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 55. Up to 11 conditions per place. [2023-08-30 17:41:59,299 INFO L137 encePairwiseOnDemand]: 97/101 looper letters, 6 selfloop transitions, 4 changer transitions 2/14 dead transitions. [2023-08-30 17:41:59,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 78 flow [2023-08-30 17:41:59,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 17:41:59,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 17:41:59,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 217 transitions. [2023-08-30 17:41:59,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371287128712872 [2023-08-30 17:41:59,301 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 217 transitions. [2023-08-30 17:41:59,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 217 transitions. [2023-08-30 17:41:59,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:41:59,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 217 transitions. [2023-08-30 17:41:59,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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) [2023-08-30 17:41:59,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2023-08-30 17:41:59,305 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2023-08-30 17:41:59,306 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 45 flow. Second operand 4 states and 217 transitions. [2023-08-30 17:41:59,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 78 flow [2023-08-30 17:41:59,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 17:41:59,307 INFO L231 Difference]: Finished difference. Result has 20 places, 12 transitions, 45 flow [2023-08-30 17:41:59,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=45, PETRI_PLACES=20, PETRI_TRANSITIONS=12} [2023-08-30 17:41:59,308 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 4 predicate places. [2023-08-30 17:41:59,308 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 45 flow [2023-08-30 17:41:59,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 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) [2023-08-30 17:41:59,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:41:59,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:41:59,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 17:41:59,309 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:41:59,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:41:59,310 INFO L85 PathProgramCache]: Analyzing trace with hash 714246740, now seen corresponding path program 1 times [2023-08-30 17:41:59,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:41:59,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096028317] [2023-08-30 17:41:59,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:41:59,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:41:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:41:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:41:59,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:41:59,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096028317] [2023-08-30 17:41:59,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096028317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:41:59,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:41:59,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 17:41:59,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219535319] [2023-08-30 17:41:59,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:41:59,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 17:41:59,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:41:59,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 17:41:59,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 17:41:59,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 101 [2023-08-30 17:41:59,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 45 flow. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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) [2023-08-30 17:41:59,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:41:59,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 101 [2023-08-30 17:41:59,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:41:59,504 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-08-30 17:41:59,504 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:41:59,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 15 events. 0/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-08-30 17:41:59,505 INFO L137 encePairwiseOnDemand]: 96/101 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-30 17:41:59,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 11 transitions, 57 flow [2023-08-30 17:41:59,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 17:41:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 17:41:59,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 217 transitions. [2023-08-30 17:41:59,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371287128712872 [2023-08-30 17:41:59,509 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 217 transitions. [2023-08-30 17:41:59,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 217 transitions. [2023-08-30 17:41:59,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:41:59,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 217 transitions. [2023-08-30 17:41:59,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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) [2023-08-30 17:41:59,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2023-08-30 17:41:59,517 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2023-08-30 17:41:59,517 INFO L175 Difference]: Start difference. First operand has 20 places, 12 transitions, 45 flow. Second operand 4 states and 217 transitions. [2023-08-30 17:41:59,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 11 transitions, 57 flow [2023-08-30 17:41:59,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 11 transitions, 48 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-30 17:41:59,518 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-08-30 17:41:59,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-08-30 17:41:59,519 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 3 predicate places. [2023-08-30 17:41:59,519 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-08-30 17:41:59,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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) [2023-08-30 17:41:59,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-30 17:41:59,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-30 17:41:59,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 17:41:59,522 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-08-30 17:41:59,527 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:41:59,527 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:41:59,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:41:59 BasicIcfg [2023-08-30 17:41:59,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:41:59,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:41:59,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:41:59,535 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:41:59,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:41:56" (3/4) ... [2023-08-30 17:41:59,538 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 17:41:59,543 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 17:41:59,547 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-30 17:41:59,547 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 17:41:59,547 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 17:41:59,548 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 17:41:59,576 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:41:59,576 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:41:59,577 INFO L158 Benchmark]: Toolchain (without parser) took 4420.01ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.6MB in the beginning and 35.0MB in the end (delta: 18.6MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2023-08-30 17:41:59,577 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 41.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:41:59,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.94ms. Allocated memory is still 77.6MB. Free memory was 53.4MB in the beginning and 52.9MB in the end (delta: 556.4kB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-08-30 17:41:59,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.42ms. Allocated memory is still 77.6MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:41:59,578 INFO L158 Benchmark]: Boogie Preprocessor took 37.31ms. Allocated memory is still 77.6MB. Free memory was 50.8MB in the beginning and 49.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:41:59,578 INFO L158 Benchmark]: RCFGBuilder took 377.08ms. Allocated memory is still 77.6MB. Free memory was 49.4MB in the beginning and 37.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 17:41:59,578 INFO L158 Benchmark]: TraceAbstraction took 3432.89ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 36.8MB in the beginning and 38.3MB in the end (delta: -1.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-30 17:41:59,579 INFO L158 Benchmark]: Witness Printer took 41.64ms. Allocated memory is still 94.4MB. Free memory was 38.3MB in the beginning and 35.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 17:41:59,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 41.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.94ms. Allocated memory is still 77.6MB. Free memory was 53.4MB in the beginning and 52.9MB in the end (delta: 556.4kB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.42ms. Allocated memory is still 77.6MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.31ms. Allocated memory is still 77.6MB. Free memory was 50.8MB in the beginning and 49.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.08ms. Allocated memory is still 77.6MB. Free memory was 49.4MB in the beginning and 37.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3432.89ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 36.8MB in the beginning and 38.3MB in the end (delta: -1.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 41.64ms. Allocated memory is still 94.4MB. Free memory was 38.3MB in the beginning and 35.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 56 PlacesBefore, 16 PlacesAfterwards, 52 TransitionsBefore, 12 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 684 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 283, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 139, independent: 120, independent conditional: 0, independent unconditional: 120, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 283, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 139, unknown conditional: 0, unknown unconditional: 139] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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, 74 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 173 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 21 mSDtfsCounter, 246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 17:41:59,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE