./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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_44-traces-mine2_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 abd7c6a811fa727af1a8295486441ec66634091da13d54772e1efa33885ef21c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 02:55:50,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 02:55:50,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 02:55:50,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 02:55:50,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 02:55:50,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 02:55:50,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 02:55:50,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 02:55:50,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 02:55:50,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 02:55:50,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 02:55:50,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 02:55:50,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 02:55:50,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 02:55:50,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 02:55:50,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 02:55:50,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 02:55:50,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 02:55:50,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 02:55:50,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 02:55:50,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 02:55:50,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 02:55:50,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 02:55:50,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 02:55:50,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 02:55:50,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 02:55:50,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 02:55:50,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 02:55:50,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 02:55:50,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 02:55:50,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 02:55:50,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 02:55:50,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 02:55:50,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 02:55:50,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 02:55:50,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 02:55:50,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 02:55:50,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 02:55:50,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 02:55:50,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 02:55:50,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 02:55:50,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 02:55:50,988 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 02:55:50,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 02:55:50,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 02:55:50,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 02:55:50,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 02:55:50,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 02:55:50,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 02:55:50,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 02:55:50,993 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 02:55:50,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 02:55:50,994 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 02:55:50,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 02:55:50,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 02:55:50,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 02:55:50,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 02:55:50,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 02:55:50,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 02:55:50,995 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 02:55:50,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 02:55:50,995 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 02:55:50,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 02:55:50,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 02:55:50,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 02:55:50,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 02:55:50,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:55:50,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 02:55:50,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 02:55:50,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 02:55:50,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 02:55:50,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 02:55:50,997 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 02:55:50,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 02:55:50,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 02:55:50,998 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abd7c6a811fa727af1a8295486441ec66634091da13d54772e1efa33885ef21c [2021-12-28 02:55:51,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 02:55:51,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 02:55:51,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 02:55:51,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 02:55:51,277 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 02:55:51,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i [2021-12-28 02:55:51,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d40dddbe3/29c1e4af12c04366a519f2d6835fa968/FLAGfd99c5a20 [2021-12-28 02:55:51,743 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 02:55:51,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i [2021-12-28 02:55:51,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d40dddbe3/29c1e4af12c04366a519f2d6835fa968/FLAGfd99c5a20 [2021-12-28 02:55:52,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d40dddbe3/29c1e4af12c04366a519f2d6835fa968 [2021-12-28 02:55:52,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 02:55:52,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 02:55:52,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 02:55:52,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 02:55:52,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 02:55:52,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9d155c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52, skipping insertion in model container [2021-12-28 02:55:52,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 02:55:52,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 02:55:52,324 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_44-traces-mine2_true.i[1089,1102] [2021-12-28 02:55:52,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:55:52,465 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 02:55:52,474 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_44-traces-mine2_true.i[1089,1102] [2021-12-28 02:55:52,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:55:52,524 INFO L208 MainTranslator]: Completed translation [2021-12-28 02:55:52,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52 WrapperNode [2021-12-28 02:55:52,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 02:55:52,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 02:55:52,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 02:55:52,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 02:55:52,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,575 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2021-12-28 02:55:52,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 02:55:52,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 02:55:52,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 02:55:52,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 02:55:52,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 02:55:52,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 02:55:52,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 02:55:52,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 02:55:52,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (1/1) ... [2021-12-28 02:55:52,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:55:52,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 02:55:52,633 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) [2021-12-28 02:55:52,650 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 [2021-12-28 02:55:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 02:55:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-28 02:55:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 02:55:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 02:55:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-28 02:55:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-28 02:55:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 02:55:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 02:55:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 02:55:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 02:55:52,669 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-28 02:55:52,752 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 02:55:52,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 02:55:52,918 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 02:55:52,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 02:55:52,924 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 02:55:52,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:55:52 BoogieIcfgContainer [2021-12-28 02:55:52,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 02:55:52,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 02:55:52,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 02:55:52,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 02:55:52,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 02:55:52" (1/3) ... [2021-12-28 02:55:52,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1fb0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:55:52, skipping insertion in model container [2021-12-28 02:55:52,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:52" (2/3) ... [2021-12-28 02:55:52,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1fb0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:55:52, skipping insertion in model container [2021-12-28 02:55:52,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:55:52" (3/3) ... [2021-12-28 02:55:52,931 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2021-12-28 02:55:52,935 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-28 02:55:52,935 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 02:55:52,935 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-28 02:55:52,935 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-28 02:55:52,978 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,979 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,979 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,979 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,980 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,980 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,982 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,982 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,982 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,983 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,983 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,983 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,984 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,986 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,987 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:52,989 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-28 02:55:53,027 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 02:55:53,033 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 [2021-12-28 02:55:53,033 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-28 02:55:53,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 77 transitions, 159 flow [2021-12-28 02:55:53,096 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2021-12-28 02:55:53,097 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:55:53,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-12-28 02:55:53,099 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 77 transitions, 159 flow [2021-12-28 02:55:53,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 66 transitions, 135 flow [2021-12-28 02:55:53,127 INFO L129 PetriNetUnfolder]: 1/54 cut-off events. [2021-12-28 02:55:53,128 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:55:53,128 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:53,129 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] [2021-12-28 02:55:53,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:55:53,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:53,135 INFO L85 PathProgramCache]: Analyzing trace with hash 47225093, now seen corresponding path program 1 times [2021-12-28 02:55:53,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:53,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528466789] [2021-12-28 02:55:53,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:53,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:53,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:53,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:53,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528466789] [2021-12-28 02:55:53,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528466789] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:53,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:53,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 02:55:53,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761381011] [2021-12-28 02:55:53,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:53,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 02:55:53,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:53,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 02:55:53,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 02:55:53,473 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 77 [2021-12-28 02:55:53,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-12-28 02:55:53,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:53,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 77 [2021-12-28 02:55:53,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:53,614 INFO L129 PetriNetUnfolder]: 36/208 cut-off events. [2021-12-28 02:55:53,615 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-28 02:55:53,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 208 events. 36/208 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 810 event pairs, 7 based on Foata normal form. 7/212 useless extension candidates. Maximal degree in co-relation 270. Up to 24 conditions per place. [2021-12-28 02:55:53,617 INFO L132 encePairwiseOnDemand]: 65/77 looper letters, 21 selfloop transitions, 13 changer transitions 9/93 dead transitions. [2021-12-28 02:55:53,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 93 transitions, 275 flow [2021-12-28 02:55:53,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 02:55:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-28 02:55:53,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 571 transitions. [2021-12-28 02:55:53,631 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.823953823953824 [2021-12-28 02:55:53,632 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 571 transitions. [2021-12-28 02:55:53,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 571 transitions. [2021-12-28 02:55:53,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:53,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 571 transitions. [2021-12-28 02:55:53,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 63.44444444444444) internal successors, (571), 9 states have internal predecessors, (571), 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) [2021-12-28 02:55:53,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 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) [2021-12-28 02:55:53,647 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 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) [2021-12-28 02:55:53,648 INFO L186 Difference]: Start difference. First operand has 69 places, 66 transitions, 135 flow. Second operand 9 states and 571 transitions. [2021-12-28 02:55:53,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 93 transitions, 275 flow [2021-12-28 02:55:53,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 93 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-28 02:55:53,662 INFO L242 Difference]: Finished difference. Result has 82 places, 73 transitions, 222 flow [2021-12-28 02:55:53,663 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=222, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2021-12-28 02:55:53,665 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 13 predicate places. [2021-12-28 02:55:53,666 INFO L470 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 222 flow [2021-12-28 02:55:53,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-12-28 02:55:53,667 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:53,667 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] [2021-12-28 02:55:53,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 02:55:53,668 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:55:53,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:53,669 INFO L85 PathProgramCache]: Analyzing trace with hash 212203783, now seen corresponding path program 1 times [2021-12-28 02:55:53,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:53,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954862739] [2021-12-28 02:55:53,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:53,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:53,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:53,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954862739] [2021-12-28 02:55:53,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954862739] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:53,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:53,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 02:55:53,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056695893] [2021-12-28 02:55:53,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:53,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 02:55:53,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:53,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 02:55:53,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 02:55:53,753 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 77 [2021-12-28 02:55:53,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2021-12-28 02:55:53,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:53,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 77 [2021-12-28 02:55:53,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:53,794 INFO L129 PetriNetUnfolder]: 3/125 cut-off events. [2021-12-28 02:55:53,794 INFO L130 PetriNetUnfolder]: For 26/27 co-relation queries the response was YES. [2021-12-28 02:55:53,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 125 events. 3/125 cut-off events. For 26/27 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 276 event pairs, 0 based on Foata normal form. 5/130 useless extension candidates. Maximal degree in co-relation 165. Up to 19 conditions per place. [2021-12-28 02:55:53,796 INFO L132 encePairwiseOnDemand]: 73/77 looper letters, 9 selfloop transitions, 4 changer transitions 5/71 dead transitions. [2021-12-28 02:55:53,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 71 transitions, 233 flow [2021-12-28 02:55:53,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 02:55:53,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-28 02:55:53,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2021-12-28 02:55:53,799 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8528138528138528 [2021-12-28 02:55:53,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 197 transitions. [2021-12-28 02:55:53,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 197 transitions. [2021-12-28 02:55:53,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:53,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 197 transitions. [2021-12-28 02:55:53,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2021-12-28 02:55:53,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2021-12-28 02:55:53,802 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2021-12-28 02:55:53,802 INFO L186 Difference]: Start difference. First operand has 82 places, 73 transitions, 222 flow. Second operand 3 states and 197 transitions. [2021-12-28 02:55:53,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 71 transitions, 233 flow [2021-12-28 02:55:53,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 71 transitions, 219 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-12-28 02:55:53,807 INFO L242 Difference]: Finished difference. Result has 80 places, 66 transitions, 175 flow [2021-12-28 02:55:53,807 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2021-12-28 02:55:53,808 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 11 predicate places. [2021-12-28 02:55:53,808 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 175 flow [2021-12-28 02:55:53,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2021-12-28 02:55:53,809 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:53,809 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] [2021-12-28 02:55:53,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 02:55:53,809 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:55:53,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1612742903, now seen corresponding path program 1 times [2021-12-28 02:55:53,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:53,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533763066] [2021-12-28 02:55:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:53,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:53,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:53,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:53,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533763066] [2021-12-28 02:55:53,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533763066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:53,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:53,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 02:55:53,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741766209] [2021-12-28 02:55:53,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:53,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 02:55:53,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:53,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 02:55:53,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 02:55:53,932 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 77 [2021-12-28 02:55:53,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 66 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 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) [2021-12-28 02:55:53,933 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:53,933 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 77 [2021-12-28 02:55:53,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:53,984 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-12-28 02:55:53,984 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-12-28 02:55:53,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 46 events. 0/46 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-12-28 02:55:53,984 INFO L132 encePairwiseOnDemand]: 73/77 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2021-12-28 02:55:53,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 46 transitions, 146 flow [2021-12-28 02:55:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 02:55:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-28 02:55:53,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2021-12-28 02:55:53,986 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7480519480519481 [2021-12-28 02:55:53,986 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 288 transitions. [2021-12-28 02:55:53,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 288 transitions. [2021-12-28 02:55:53,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:53,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 288 transitions. [2021-12-28 02:55:53,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 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) [2021-12-28 02:55:53,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 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) [2021-12-28 02:55:53,988 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 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) [2021-12-28 02:55:53,988 INFO L186 Difference]: Start difference. First operand has 80 places, 66 transitions, 175 flow. Second operand 5 states and 288 transitions. [2021-12-28 02:55:53,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 46 transitions, 146 flow [2021-12-28 02:55:53,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 46 transitions, 131 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-28 02:55:53,989 INFO L242 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2021-12-28 02:55:53,989 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2021-12-28 02:55:53,990 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, -12 predicate places. [2021-12-28 02:55:53,990 INFO L470 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2021-12-28 02:55:53,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 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) [2021-12-28 02:55:53,992 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-28 02:55:53,992 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-12-28 02:55:53,993 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2021-12-28 02:55:53,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 02:55:53,995 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-28 02:55:53,996 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-28 02:55:53,996 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 02:55:53,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 02:55:53 BasicIcfg [2021-12-28 02:55:53,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 02:55:53,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 02:55:53,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 02:55:53,999 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 02:55:54,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:55:52" (3/4) ... [2021-12-28 02:55:54,002 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-28 02:55:54,006 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-28 02:55:54,008 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-12-28 02:55:54,008 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-28 02:55:54,008 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-28 02:55:54,008 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-28 02:55:54,030 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 02:55:54,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 02:55:54,031 INFO L158 Benchmark]: Toolchain (without parser) took 1905.91ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 43.8MB in the beginning and 55.4MB in the end (delta: -11.6MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-12-28 02:55:54,031 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory was 46.0MB in the beginning and 45.9MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 02:55:54,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.68ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 39.5MB in the end (delta: 4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 02:55:54,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.68ms. Allocated memory is still 65.0MB. Free memory was 39.3MB in the beginning and 37.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:55:54,032 INFO L158 Benchmark]: Boogie Preprocessor took 27.03ms. Allocated memory is still 65.0MB. Free memory was 37.3MB in the beginning and 36.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:55:54,032 INFO L158 Benchmark]: RCFGBuilder took 322.10ms. Allocated memory is still 65.0MB. Free memory was 36.2MB in the beginning and 43.7MB in the end (delta: -7.5MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2021-12-28 02:55:54,033 INFO L158 Benchmark]: TraceAbstraction took 1072.31ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 43.4MB in the beginning and 58.3MB in the end (delta: -14.9MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-12-28 02:55:54,033 INFO L158 Benchmark]: Witness Printer took 31.27ms. Allocated memory is still 83.9MB. Free memory was 58.3MB in the beginning and 55.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:55:54,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory was 46.0MB in the beginning and 45.9MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.68ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 39.5MB in the end (delta: 4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.68ms. Allocated memory is still 65.0MB. Free memory was 39.3MB in the beginning and 37.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.03ms. Allocated memory is still 65.0MB. Free memory was 37.3MB in the beginning and 36.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 322.10ms. Allocated memory is still 65.0MB. Free memory was 36.2MB in the beginning and 43.7MB in the end (delta: -7.5MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1072.31ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 43.4MB in the beginning and 58.3MB in the end (delta: -14.9MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Witness Printer took 31.27ms. Allocated memory is still 83.9MB. Free memory was 58.3MB in the beginning and 55.4MB in the end (delta: 2.8MB). 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 - 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, 90 locations, 3 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: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 28 mSDtfsCounter, 101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=1, InterpolantAutomatonStates: 17, 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, 0.3s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-28 02:55:54,062 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