./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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 ../sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_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 1d0c43dd41f99fbfade8285f6054d50d854da6853e7f72e8b1866aad54c9c5c4 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 16:42:20,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 16:42:20,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 16:42:20,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 16:42:20,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 16:42:20,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 16:42:20,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 16:42:20,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 16:42:20,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 16:42:20,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 16:42:20,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 16:42:20,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 16:42:20,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 16:42:20,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 16:42:20,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 16:42:20,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 16:42:20,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 16:42:20,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 16:42:20,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 16:42:20,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 16:42:20,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 16:42:20,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 16:42:20,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 16:42:20,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 16:42:20,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 16:42:20,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 16:42:20,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 16:42:20,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 16:42:20,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 16:42:20,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 16:42:20,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 16:42:20,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 16:42:20,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 16:42:20,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 16:42:20,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 16:42:20,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 16:42:20,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 16:42:20,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 16:42:20,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 16:42:20,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 16:42:20,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 16:42:20,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 16:42:20,913 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 16:42:20,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 16:42:20,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 16:42:20,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 16:42:20,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 16:42:20,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 16:42:20,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 16:42:20,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 16:42:20,915 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 16:42:20,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 16:42:20,916 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 16:42:20,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 16:42:20,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 16:42:20,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 16:42:20,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 16:42:20,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 16:42:20,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 16:42:20,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 16:42:20,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 16:42:20,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 16:42:20,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 16:42:20,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 16:42:20,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 16:42:20,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 16:42:20,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:42:20,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 16:42:20,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 16:42:20,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 16:42:20,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 16:42:20,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 16:42:20,919 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 16:42:20,919 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 16:42:20,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 16:42:20,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 16:42:20,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d0c43dd41f99fbfade8285f6054d50d854da6853e7f72e8b1866aad54c9c5c4 [2021-12-14 16:42:21,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 16:42:21,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 16:42:21,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 16:42:21,103 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 16:42:21,103 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 16:42:21,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i [2021-12-14 16:42:21,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffdf9f210/c34c0cdb68684db5a232c2f87cfba0a0/FLAGd9ccb893e [2021-12-14 16:42:21,580 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 16:42:21,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i [2021-12-14 16:42:21,593 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffdf9f210/c34c0cdb68684db5a232c2f87cfba0a0/FLAGd9ccb893e [2021-12-14 16:42:21,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffdf9f210/c34c0cdb68684db5a232c2f87cfba0a0 [2021-12-14 16:42:21,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 16:42:21,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 16:42:21,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 16:42:21,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 16:42:21,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 16:42:21,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:21,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a502df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21, skipping insertion in model container [2021-12-14 16:42:21,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:21,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 16:42:21,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 16:42:21,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i[1088,1101] [2021-12-14 16:42:21,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:42:21,870 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 16:42:21,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_35-traces-ex-2_true.i[1088,1101] [2021-12-14 16:42:21,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:42:21,945 INFO L208 MainTranslator]: Completed translation [2021-12-14 16:42:21,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21 WrapperNode [2021-12-14 16:42:21,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 16:42:21,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 16:42:21,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 16:42:21,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 16:42:21,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:21,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:21,991 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2021-12-14 16:42:21,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 16:42:21,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 16:42:21,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 16:42:21,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 16:42:21,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:21,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:22,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:22,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:22,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:22,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:22,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:22,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 16:42:22,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 16:42:22,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 16:42:22,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 16:42:22,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (1/1) ... [2021-12-14 16:42:22,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:42:22,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:42:22,054 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) [2021-12-14 16:42:22,059 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 [2021-12-14 16:42:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 16:42:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-14 16:42:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 16:42:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 16:42:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-14 16:42:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-14 16:42:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 16:42:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 16:42:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 16:42:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 16:42:22,077 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-14 16:42:22,188 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 16:42:22,194 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 16:42:22,303 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 16:42:22,307 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 16:42:22,308 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 16:42:22,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:42:22 BoogieIcfgContainer [2021-12-14 16:42:22,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 16:42:22,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 16:42:22,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 16:42:22,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 16:42:22,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:42:21" (1/3) ... [2021-12-14 16:42:22,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e50f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:42:22, skipping insertion in model container [2021-12-14 16:42:22,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:21" (2/3) ... [2021-12-14 16:42:22,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e50f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:42:22, skipping insertion in model container [2021-12-14 16:42:22,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:42:22" (3/3) ... [2021-12-14 16:42:22,315 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_35-traces-ex-2_true.i [2021-12-14 16:42:22,318 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-14 16:42:22,318 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 16:42:22,318 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 16:42:22,319 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-14 16:42:22,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,335 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,335 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,335 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,336 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,339 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,341 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,341 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:22,344 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-14 16:42:22,386 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 16:42:22,396 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 16:42:22,396 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-14 16:42:22,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 147 flow [2021-12-14 16:42:22,429 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2021-12-14 16:42:22,429 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-14 16:42:22,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2021-12-14 16:42:22,432 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 147 flow [2021-12-14 16:42:22,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 58 transitions, 119 flow [2021-12-14 16:42:22,445 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2021-12-14 16:42:22,445 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-14 16:42:22,445 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:42:22,446 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:42:22,446 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-14 16:42:22,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:42:22,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1163219958, now seen corresponding path program 1 times [2021-12-14 16:42:22,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:42:22,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172760204] [2021-12-14 16:42:22,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:42:22,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:42:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:42:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:42:22,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:42:22,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172760204] [2021-12-14 16:42:22,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172760204] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:42:22,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:42:22,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 16:42:22,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536845761] [2021-12-14 16:42:22,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:42:22,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 16:42:22,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:42:22,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 16:42:22,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 16:42:22,751 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 71 [2021-12-14 16:42:22,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 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) [2021-12-14 16:42:22,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:42:22,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 71 [2021-12-14 16:42:22,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:42:22,806 INFO L129 PetriNetUnfolder]: 8/101 cut-off events. [2021-12-14 16:42:22,807 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-14 16:42:22,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 101 events. 8/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 197 event pairs, 0 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 96. Up to 10 conditions per place. [2021-12-14 16:42:22,808 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/70 dead transitions. [2021-12-14 16:42:22,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 70 transitions, 183 flow [2021-12-14 16:42:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:42:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:42:22,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 442 transitions. [2021-12-14 16:42:22,818 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8893360160965795 [2021-12-14 16:42:22,819 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 442 transitions. [2021-12-14 16:42:22,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 442 transitions. [2021-12-14 16:42:22,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:42:22,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 442 transitions. [2021-12-14 16:42:22,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 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) [2021-12-14 16:42:22,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-12-14 16:42:22,829 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-12-14 16:42:22,830 INFO L186 Difference]: Start difference. First operand has 62 places, 58 transitions, 119 flow. Second operand 7 states and 442 transitions. [2021-12-14 16:42:22,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 70 transitions, 183 flow [2021-12-14 16:42:22,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-14 16:42:22,834 INFO L242 Difference]: Finished difference. Result has 72 places, 58 transitions, 137 flow [2021-12-14 16:42:22,836 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=137, PETRI_PLACES=72, PETRI_TRANSITIONS=58} [2021-12-14 16:42:22,838 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2021-12-14 16:42:22,838 INFO L470 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 137 flow [2021-12-14 16:42:22,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 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) [2021-12-14 16:42:22,839 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:42:22,839 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:42:22,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 16:42:22,839 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-14 16:42:22,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:42:22,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1776305511, now seen corresponding path program 1 times [2021-12-14 16:42:22,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:42:22,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498408844] [2021-12-14 16:42:22,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:42:22,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:42:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:42:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:42:22,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:42:22,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498408844] [2021-12-14 16:42:22,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498408844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:42:22,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:42:22,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 16:42:22,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186512438] [2021-12-14 16:42:22,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:42:22,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 16:42:22,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:42:22,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 16:42:22,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 16:42:22,940 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 71 [2021-12-14 16:42:22,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 137 flow. Second operand has 7 states, 7 states have (on average 46.42857142857143) internal successors, (325), 7 states have internal predecessors, (325), 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) [2021-12-14 16:42:22,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:42:22,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 71 [2021-12-14 16:42:22,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:42:23,036 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2021-12-14 16:42:23,036 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-12-14 16:42:23,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 87 events. 3/87 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 127 event pairs, 0 based on Foata normal form. 12/99 useless extension candidates. Maximal degree in co-relation 128. Up to 12 conditions per place. [2021-12-14 16:42:23,037 INFO L132 encePairwiseOnDemand]: 62/71 looper letters, 13 selfloop transitions, 5 changer transitions 13/64 dead transitions. [2021-12-14 16:42:23,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 64 transitions, 205 flow [2021-12-14 16:42:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:42:23,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:42:23,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 341 transitions. [2021-12-14 16:42:23,039 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6861167002012073 [2021-12-14 16:42:23,039 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 341 transitions. [2021-12-14 16:42:23,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 341 transitions. [2021-12-14 16:42:23,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:42:23,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 341 transitions. [2021-12-14 16:42:23,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 48.714285714285715) internal successors, (341), 7 states have internal predecessors, (341), 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) [2021-12-14 16:42:23,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-12-14 16:42:23,042 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-12-14 16:42:23,042 INFO L186 Difference]: Start difference. First operand has 72 places, 58 transitions, 137 flow. Second operand 7 states and 341 transitions. [2021-12-14 16:42:23,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 64 transitions, 205 flow [2021-12-14 16:42:23,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 64 transitions, 191 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-12-14 16:42:23,045 INFO L242 Difference]: Finished difference. Result has 68 places, 51 transitions, 118 flow [2021-12-14 16:42:23,045 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=118, PETRI_PLACES=68, PETRI_TRANSITIONS=51} [2021-12-14 16:42:23,045 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 6 predicate places. [2021-12-14 16:42:23,046 INFO L470 AbstractCegarLoop]: Abstraction has has 68 places, 51 transitions, 118 flow [2021-12-14 16:42:23,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.42857142857143) internal successors, (325), 7 states have internal predecessors, (325), 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) [2021-12-14 16:42:23,046 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:42:23,046 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:42:23,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 16:42:23,046 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-14 16:42:23,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:42:23,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1481176972, now seen corresponding path program 1 times [2021-12-14 16:42:23,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:42:23,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455635441] [2021-12-14 16:42:23,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:42:23,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:42:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:42:23,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:42:23,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:42:23,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455635441] [2021-12-14 16:42:23,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455635441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:42:23,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:42:23,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-14 16:42:23,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004184478] [2021-12-14 16:42:23,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:42:23,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-14 16:42:23,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:42:23,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-14 16:42:23,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-14 16:42:23,219 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 71 [2021-12-14 16:42:23,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 51 transitions, 118 flow. Second operand has 10 states, 10 states have (on average 40.4) internal successors, (404), 10 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) [2021-12-14 16:42:23,220 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:42:23,220 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 71 [2021-12-14 16:42:23,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:42:23,317 INFO L129 PetriNetUnfolder]: 0/43 cut-off events. [2021-12-14 16:42:23,317 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-14 16:42:23,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 43 events. 0/43 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-12-14 16:42:23,318 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2021-12-14 16:42:23,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 43 transitions, 138 flow [2021-12-14 16:42:23,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:42:23,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:42:23,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 286 transitions. [2021-12-14 16:42:23,320 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5754527162977867 [2021-12-14 16:42:23,320 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 286 transitions. [2021-12-14 16:42:23,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 286 transitions. [2021-12-14 16:42:23,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:42:23,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 286 transitions. [2021-12-14 16:42:23,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 40.857142857142854) internal successors, (286), 7 states have internal predecessors, (286), 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) [2021-12-14 16:42:23,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-12-14 16:42:23,323 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-12-14 16:42:23,324 INFO L186 Difference]: Start difference. First operand has 68 places, 51 transitions, 118 flow. Second operand 7 states and 286 transitions. [2021-12-14 16:42:23,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 43 transitions, 138 flow [2021-12-14 16:42:23,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 130 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-14 16:42:23,326 INFO L242 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2021-12-14 16:42:23,326 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2021-12-14 16:42:23,328 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, -8 predicate places. [2021-12-14 16:42:23,328 INFO L470 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2021-12-14 16:42:23,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 40.4) internal successors, (404), 10 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) [2021-12-14 16:42:23,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-14 16:42:23,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-12-14 16:42:23,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 16:42:23,334 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-14 16:42:23,336 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-14 16:42:23,336 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 16:42:23,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:42:23 BasicIcfg [2021-12-14 16:42:23,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 16:42:23,344 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 16:42:23,344 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 16:42:23,344 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 16:42:23,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:42:22" (3/4) ... [2021-12-14 16:42:23,346 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-14 16:42:23,351 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-14 16:42:23,355 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-12-14 16:42:23,357 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-14 16:42:23,358 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-14 16:42:23,358 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-14 16:42:23,387 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 16:42:23,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 16:42:23,388 INFO L158 Benchmark]: Toolchain (without parser) took 1778.45ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 77.9MB in the beginning and 54.4MB in the end (delta: 23.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2021-12-14 16:42:23,388 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 16:42:23,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.34ms. Allocated memory is still 113.2MB. Free memory was 77.6MB in the beginning and 79.3MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 16:42:23,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.11ms. Allocated memory is still 113.2MB. Free memory was 79.3MB in the beginning and 77.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 16:42:23,394 INFO L158 Benchmark]: Boogie Preprocessor took 38.99ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 76.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 16:42:23,394 INFO L158 Benchmark]: RCFGBuilder took 277.69ms. Allocated memory is still 113.2MB. Free memory was 76.2MB in the beginning and 64.4MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 16:42:23,395 INFO L158 Benchmark]: TraceAbstraction took 1032.39ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 64.4MB in the beginning and 57.6MB in the end (delta: 6.8MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2021-12-14 16:42:23,395 INFO L158 Benchmark]: Witness Printer took 43.48ms. Allocated memory is still 138.4MB. Free memory was 56.5MB in the beginning and 54.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 16:42:23,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.34ms. Allocated memory is still 113.2MB. Free memory was 77.6MB in the beginning and 79.3MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.11ms. Allocated memory is still 113.2MB. Free memory was 79.3MB in the beginning and 77.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.99ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 76.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.69ms. Allocated memory is still 113.2MB. Free memory was 76.2MB in the beginning and 64.4MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1032.39ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 64.4MB in the beginning and 57.6MB in the end (delta: 6.8MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. * Witness Printer took 43.48ms. Allocated memory is still 138.4MB. Free memory was 56.5MB in the beginning and 54.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 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, 87 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: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 32 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=1, InterpolantAutomatonStates: 21, 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, 0.4s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-14 16:42:23,425 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