./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_19-publish-precision_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 c983783f5358911c3fbbb6a10a3bc1f70631f1803357161b1c0bc876f490a9b5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 21:16:52,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:16:52,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:16:52,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:16:52,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:16:52,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:16:52,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:16:52,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:16:52,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:16:52,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:16:52,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:16:52,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:16:52,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:16:52,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:16:52,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:16:52,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:16:52,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:16:52,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:16:52,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:16:52,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:16:52,638 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:16:52,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:16:52,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:16:52,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:16:52,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:16:52,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:16:52,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:16:52,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:16:52,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:16:52,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:16:52,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:16:52,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:16:52,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:16:52,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:16:52,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:16:52,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:16:52,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:16:52,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:16:52,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:16:52,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:16:52,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:16:52,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:16:52,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 21:16:52,679 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:16:52,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:16:52,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:16:52,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:16:52,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:16:52,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:16:52,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:16:52,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:16:52,682 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:16:52,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:16:52,683 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 21:16:52,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:16:52,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 21:16:52,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:16:52,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:16:52,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:16:52,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:16:52,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 21:16:52,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:16:52,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:16:52,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:16:52,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:16:52,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:16:52,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:16:52,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:16:52,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:16:52,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:16:52,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:16:52,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:16:52,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:16:52,687 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:16:52,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:16:52,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:16:52,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c983783f5358911c3fbbb6a10a3bc1f70631f1803357161b1c0bc876f490a9b5 [2022-07-19 21:16:52,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:16:52,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:16:52,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:16:52,892 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:16:52,892 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:16:52,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i [2022-07-19 21:16:52,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da3efdc2/9d89def55dbd41a78197c687347cbb09/FLAG25c38b892 [2022-07-19 21:16:53,267 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:16:53,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_true.i [2022-07-19 21:16:53,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da3efdc2/9d89def55dbd41a78197c687347cbb09/FLAG25c38b892 [2022-07-19 21:16:53,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da3efdc2/9d89def55dbd41a78197c687347cbb09 [2022-07-19 21:16:53,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:16:53,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:16:53,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:16:53,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:16:53,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:16:53,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:16:53" (1/1) ... [2022-07-19 21:16:53,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e633ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:53, skipping insertion in model container [2022-07-19 21:16:53,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:16:53" (1/1) ... [2022-07-19 21:16:53,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:16:53,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:16:53,869 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_19-publish-precision_true.i[1094,1107] [2022-07-19 21:16:53,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:16:53,996 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:16:54,004 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_19-publish-precision_true.i[1094,1107] [2022-07-19 21:16:54,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:16:54,076 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:16:54,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54 WrapperNode [2022-07-19 21:16:54,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:16:54,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:16:54,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:16:54,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:16:54,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (1/1) ... [2022-07-19 21:16:54,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (1/1) ... [2022-07-19 21:16:54,134 INFO L137 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2022-07-19 21:16:54,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:16:54,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:16:54,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:16:54,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:16:54,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (1/1) ... [2022-07-19 21:16:54,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (1/1) ... [2022-07-19 21:16:54,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (1/1) ... [2022-07-19 21:16:54,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (1/1) ... [2022-07-19 21:16:54,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (1/1) ... [2022-07-19 21:16:54,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (1/1) ... [2022-07-19 21:16:54,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (1/1) ... [2022-07-19 21:16:54,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:16:54,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:16:54,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:16:54,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:16:54,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (1/1) ... [2022-07-19 21:16:54,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:16:54,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:16:54,218 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) [2022-07-19 21:16:54,251 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 [2022-07-19 21:16:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 21:16:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:16:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-19 21:16:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:16:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:16:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-19 21:16:54,272 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-19 21:16:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:16:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:16:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:16:54,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:16:54,274 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-19 21:16:54,350 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:16:54,352 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:16:54,555 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:16:54,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:16:54,562 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 21:16:54,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:16:54 BoogieIcfgContainer [2022-07-19 21:16:54,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:16:54,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:16:54,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:16:54,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:16:54,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:16:53" (1/3) ... [2022-07-19 21:16:54,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4357b100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:16:54, skipping insertion in model container [2022-07-19 21:16:54,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:54" (2/3) ... [2022-07-19 21:16:54,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4357b100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:16:54, skipping insertion in model container [2022-07-19 21:16:54,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:16:54" (3/3) ... [2022-07-19 21:16:54,586 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_true.i [2022-07-19 21:16:54,603 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-19 21:16:54,611 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:16:54,611 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 21:16:54,611 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-19 21:16:54,675 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-19 21:16:54,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 170 flow [2022-07-19 21:16:54,777 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2022-07-19 21:16:54,777 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-19 21:16:54,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 80 events. 2/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-07-19 21:16:54,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 170 flow [2022-07-19 21:16:54,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 63 transitions, 129 flow [2022-07-19 21:16:54,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:16:54,806 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5c724e04, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@52ed981f [2022-07-19 21:16:54,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-19 21:16:54,824 INFO L129 PetriNetUnfolder]: 1/37 cut-off events. [2022-07-19 21:16:54,825 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-19 21:16:54,825 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:16:54,826 INFO L200 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] [2022-07-19 21:16:54,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-19 21:16:54,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:16:54,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1050706074, now seen corresponding path program 1 times [2022-07-19 21:16:54,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:16:54,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497724760] [2022-07-19 21:16:54,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:16:54,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:16:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:16:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:16:55,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:16:55,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497724760] [2022-07-19 21:16:55,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497724760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:16:55,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:16:55,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 21:16:55,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985163994] [2022-07-19 21:16:55,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:16:55,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 21:16:55,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:16:55,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 21:16:55,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 21:16:55,207 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 81 [2022-07-19 21:16:55,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 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) [2022-07-19 21:16:55,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:16:55,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 81 [2022-07-19 21:16:55,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:16:55,271 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2022-07-19 21:16:55,273 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-19 21:16:55,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 59 events. 0/59 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-07-19 21:16:55,274 INFO L132 encePairwiseOnDemand]: 76/81 looper letters, 4 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2022-07-19 21:16:55,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 59 transitions, 137 flow [2022-07-19 21:16:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 21:16:55,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-19 21:16:55,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 405 transitions. [2022-07-19 21:16:55,289 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-07-19 21:16:55,289 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 405 transitions. [2022-07-19 21:16:55,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 405 transitions. [2022-07-19 21:16:55,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:16:55,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 405 transitions. [2022-07-19 21:16:55,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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) [2022-07-19 21:16:55,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 states have internal predecessors, (567), 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) [2022-07-19 21:16:55,306 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 states have internal predecessors, (567), 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) [2022-07-19 21:16:55,308 INFO L186 Difference]: Start difference. First operand has 66 places, 63 transitions, 129 flow. Second operand 6 states and 405 transitions. [2022-07-19 21:16:55,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 59 transitions, 137 flow [2022-07-19 21:16:55,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 59 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-19 21:16:55,313 INFO L242 Difference]: Finished difference. Result has 67 places, 59 transitions, 128 flow [2022-07-19 21:16:55,315 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=67, PETRI_TRANSITIONS=59} [2022-07-19 21:16:55,318 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, 1 predicate places. [2022-07-19 21:16:55,318 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 59 transitions, 128 flow [2022-07-19 21:16:55,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 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) [2022-07-19 21:16:55,319 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:16:55,319 INFO L200 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, 1, 1] [2022-07-19 21:16:55,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 21:16:55,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-19 21:16:55,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:16:55,321 INFO L85 PathProgramCache]: Analyzing trace with hash 63925959, now seen corresponding path program 1 times [2022-07-19 21:16:55,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:16:55,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014002357] [2022-07-19 21:16:55,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:16:55,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:16:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:16:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:16:55,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:16:55,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014002357] [2022-07-19 21:16:55,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014002357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:16:55,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:16:55,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 21:16:55,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754044621] [2022-07-19 21:16:55,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:16:55,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 21:16:55,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:16:55,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 21:16:55,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 21:16:55,441 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 81 [2022-07-19 21:16:55,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 59 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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) [2022-07-19 21:16:55,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:16:55,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 81 [2022-07-19 21:16:55,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:16:55,477 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2022-07-19 21:16:55,478 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-19 21:16:55,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 57 events. 0/57 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-07-19 21:16:55,482 INFO L132 encePairwiseOnDemand]: 77/81 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2022-07-19 21:16:55,482 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 57 transitions, 138 flow [2022-07-19 21:16:55,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 21:16:55,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-19 21:16:55,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 338 transitions. [2022-07-19 21:16:55,484 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8345679012345679 [2022-07-19 21:16:55,484 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 338 transitions. [2022-07-19 21:16:55,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 338 transitions. [2022-07-19 21:16:55,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:16:55,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 338 transitions. [2022-07-19 21:16:55,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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) [2022-07-19 21:16:55,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2022-07-19 21:16:55,488 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2022-07-19 21:16:55,488 INFO L186 Difference]: Start difference. First operand has 67 places, 59 transitions, 128 flow. Second operand 5 states and 338 transitions. [2022-07-19 21:16:55,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 57 transitions, 138 flow [2022-07-19 21:16:55,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 57 transitions, 131 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-19 21:16:55,490 INFO L242 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2022-07-19 21:16:55,491 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2022-07-19 21:16:55,491 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2022-07-19 21:16:55,492 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2022-07-19 21:16:55,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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) [2022-07-19 21:16:55,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-07-19 21:16:55,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-07-19 21:16:55,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-07-19 21:16:55,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-07-19 21:16:55,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 21:16:55,496 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 21:16:55,501 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-19 21:16:55,502 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 21:16:55,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:16:55 BasicIcfg [2022-07-19 21:16:55,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 21:16:55,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 21:16:55,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 21:16:55,512 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 21:16:55,512 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:16:54" (3/4) ... [2022-07-19 21:16:55,514 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 21:16:55,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-19 21:16:55,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-19 21:16:55,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-19 21:16:55,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 21:16:55,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 21:16:55,549 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 21:16:55,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 21:16:55,550 INFO L158 Benchmark]: Toolchain (without parser) took 1881.08ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 70.8MB in the beginning and 49.8MB in the end (delta: 21.0MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2022-07-19 21:16:55,550 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 104.9MB. Free memory was 59.7MB in the beginning and 59.6MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 21:16:55,550 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.35ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 69.4MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 21:16:55,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.50ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 67.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 21:16:55,551 INFO L158 Benchmark]: Boogie Preprocessor took 43.77ms. Allocated memory is still 104.9MB. Free memory was 67.5MB in the beginning and 66.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 21:16:55,551 INFO L158 Benchmark]: RCFGBuilder took 398.44ms. Allocated memory is still 104.9MB. Free memory was 66.2MB in the beginning and 54.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 21:16:55,552 INFO L158 Benchmark]: TraceAbstraction took 930.65ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 54.1MB in the beginning and 52.8MB in the end (delta: 1.2MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2022-07-19 21:16:55,552 INFO L158 Benchmark]: Witness Printer took 38.07ms. Allocated memory is still 125.8MB. Free memory was 52.8MB in the beginning and 49.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 21:16:55,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 104.9MB. Free memory was 59.7MB in the beginning and 59.6MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.35ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 69.4MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.50ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 67.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.77ms. Allocated memory is still 104.9MB. Free memory was 67.5MB in the beginning and 66.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 398.44ms. Allocated memory is still 104.9MB. Free memory was 66.2MB in the beginning and 54.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 930.65ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 54.1MB in the beginning and 52.8MB in the end (delta: 1.2MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Witness Printer took 38.07ms. Allocated memory is still 125.8MB. Free memory was 52.8MB in the beginning and 49.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 105 locations, 4 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0.2s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-07-19 21:16:55,577 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