./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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_unknown_1_pos.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 f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 02:55:55,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 02:55:55,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 02:55:55,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 02:55:55,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 02:55:55,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 02:55:55,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 02:55:55,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 02:55:55,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 02:55:55,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 02:55:55,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 02:55:55,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 02:55:55,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 02:55:55,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 02:55:55,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 02:55:55,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 02:55:55,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 02:55:55,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 02:55:55,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 02:55:55,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 02:55:55,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 02:55:55,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 02:55:55,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 02:55:55,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 02:55:55,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 02:55:55,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 02:55:55,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 02:55:55,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 02:55:55,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 02:55:55,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 02:55:55,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 02:55:55,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 02:55:55,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 02:55:55,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 02:55:55,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 02:55:55,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 02:55:55,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 02:55:55,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 02:55:55,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 02:55:55,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 02:55:55,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 02:55:55,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 02:55:55,379 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 02:55:55,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 02:55:55,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 02:55:55,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 02:55:55,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 02:55:55,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 02:55:55,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 02:55:55,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 02:55:55,382 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 02:55:55,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 02:55:55,382 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 02:55:55,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 02:55:55,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 02:55:55,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 02:55:55,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 02:55:55,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 02:55:55,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 02:55:55,384 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 02:55:55,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 02:55:55,384 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 02:55:55,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 02:55:55,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 02:55:55,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 02:55:55,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 02:55:55,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 02:55:55,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 02:55:55,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 02:55:55,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 02:55:55,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 02:55:55,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 02:55:55,386 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 02:55:55,386 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 02:55:55,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 02:55:55,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 02:55:55,387 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc [2021-12-16 02:55:55,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 02:55:55,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 02:55:55,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 02:55:55,618 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 02:55:55,619 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 02:55:55,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2021-12-16 02:55:55,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17395ab7d/94ace6cc8e69428a8e55316905ccc3f5/FLAG3464a2040 [2021-12-16 02:55:56,055 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 02:55:56,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2021-12-16 02:55:56,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17395ab7d/94ace6cc8e69428a8e55316905ccc3f5/FLAG3464a2040 [2021-12-16 02:55:56,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17395ab7d/94ace6cc8e69428a8e55316905ccc3f5 [2021-12-16 02:55:56,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 02:55:56,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 02:55:56,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 02:55:56,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 02:55:56,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 02:55:56,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7790e52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56, skipping insertion in model container [2021-12-16 02:55:56,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 02:55:56,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 02:55:56,297 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_unknown_1_pos.i[1103,1116] [2021-12-16 02:55:56,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 02:55:56,430 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 02:55:56,441 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_unknown_1_pos.i[1103,1116] [2021-12-16 02:55:56,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 02:55:56,502 INFO L208 MainTranslator]: Completed translation [2021-12-16 02:55:56,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56 WrapperNode [2021-12-16 02:55:56,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 02:55:56,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 02:55:56,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 02:55:56,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 02:55:56,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,547 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2021-12-16 02:55:56,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 02:55:56,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 02:55:56,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 02:55:56,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 02:55:56,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 02:55:56,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 02:55:56,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 02:55:56,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 02:55:56,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (1/1) ... [2021-12-16 02:55:56,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 02:55:56,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 02:55:56,614 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) [2021-12-16 02:55:56,619 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 [2021-12-16 02:55:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 02:55:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 02:55:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-16 02:55:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 02:55:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 02:55:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-16 02:55:56,641 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-16 02:55:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 02:55:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 02:55:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 02:55:56,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 02:55:56,643 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-16 02:55:56,710 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 02:55:56,712 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 02:55:56,881 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 02:55:56,886 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 02:55:56,886 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 02:55:56,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:55:56 BoogieIcfgContainer [2021-12-16 02:55:56,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 02:55:56,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 02:55:56,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 02:55:56,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 02:55:56,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:55:56" (1/3) ... [2021-12-16 02:55:56,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791093b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:55:56, skipping insertion in model container [2021-12-16 02:55:56,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:55:56" (2/3) ... [2021-12-16 02:55:56,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791093b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:55:56, skipping insertion in model container [2021-12-16 02:55:56,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:55:56" (3/3) ... [2021-12-16 02:55:56,900 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2021-12-16 02:55:56,903 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-16 02:55:56,903 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 02:55:56,903 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 02:55:56,903 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-16 02:55:56,928 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,929 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,929 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,929 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,930 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,930 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,930 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,930 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,930 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,939 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,940 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:55:56,944 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-16 02:55:56,983 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 02:55:56,989 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 [2021-12-16 02:55:56,990 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-16 02:55:57,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2021-12-16 02:55:57,066 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2021-12-16 02:55:57,066 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-16 02:55:57,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 1/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2021-12-16 02:55:57,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 150 flow [2021-12-16 02:55:57,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2021-12-16 02:55:57,092 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-12-16 02:55:57,093 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-16 02:55:57,093 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:55:57,094 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] [2021-12-16 02:55:57,094 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-16 02:55:57,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:55:57,098 INFO L85 PathProgramCache]: Analyzing trace with hash -881270525, now seen corresponding path program 1 times [2021-12-16 02:55:57,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:55:57,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514855630] [2021-12-16 02:55:57,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:55:57,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:55:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:55:57,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:55:57,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:55:57,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514855630] [2021-12-16 02:55:57,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514855630] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:55:57,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:55:57,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 02:55:57,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872960495] [2021-12-16 02:55:57,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:55:57,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 02:55:57,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:55:57,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 02:55:57,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 02:55:57,383 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2021-12-16 02:55:57,386 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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) [2021-12-16 02:55:57,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:55:57,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2021-12-16 02:55:57,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:55:57,442 INFO L129 PetriNetUnfolder]: 8/99 cut-off events. [2021-12-16 02:55:57,443 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-16 02:55:57,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 99 events. 8/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 200 event pairs, 0 based on Foata normal form. 3/102 useless extension candidates. Maximal degree in co-relation 94. Up to 10 conditions per place. [2021-12-16 02:55:57,444 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/68 dead transitions. [2021-12-16 02:55:57,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 68 transitions, 179 flow [2021-12-16 02:55:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 02:55:57,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-16 02:55:57,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 435 transitions. [2021-12-16 02:55:57,453 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8752515090543259 [2021-12-16 02:55:57,454 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 435 transitions. [2021-12-16 02:55:57,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 435 transitions. [2021-12-16 02:55:57,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:55:57,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 435 transitions. [2021-12-16 02:55:57,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 62.142857142857146) internal successors, (435), 7 states have internal predecessors, (435), 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) [2021-12-16 02:55:57,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 02:55:57,464 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 02:55:57,465 INFO L186 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 7 states and 435 transitions. [2021-12-16 02:55:57,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 68 transitions, 179 flow [2021-12-16 02:55:57,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-16 02:55:57,469 INFO L242 Difference]: Finished difference. Result has 70 places, 56 transitions, 133 flow [2021-12-16 02:55:57,470 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=133, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2021-12-16 02:55:57,472 INFO L334 CegarLoopForPetriNet]: 60 programPoint places, 10 predicate places. [2021-12-16 02:55:57,473 INFO L470 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 133 flow [2021-12-16 02:55:57,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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) [2021-12-16 02:55:57,473 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:55:57,473 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] [2021-12-16 02:55:57,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 02:55:57,474 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-16 02:55:57,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:55:57,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1191502746, now seen corresponding path program 1 times [2021-12-16 02:55:57,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:55:57,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598982870] [2021-12-16 02:55:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:55:57,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:55:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:55:57,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:55:57,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:55:57,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598982870] [2021-12-16 02:55:57,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598982870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:55:57,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:55:57,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 02:55:57,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235371646] [2021-12-16 02:55:57,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:55:57,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 02:55:57,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:55:57,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 02:55:57,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 02:55:57,519 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 71 [2021-12-16 02:55:57,520 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 56 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2021-12-16 02:55:57,520 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:55:57,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 71 [2021-12-16 02:55:57,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:55:57,545 INFO L129 PetriNetUnfolder]: 1/72 cut-off events. [2021-12-16 02:55:57,546 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-16 02:55:57,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 72 events. 1/72 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 4/76 useless extension candidates. Maximal degree in co-relation 99. Up to 13 conditions per place. [2021-12-16 02:55:57,547 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/58 dead transitions. [2021-12-16 02:55:57,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 169 flow [2021-12-16 02:55:57,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 02:55:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-16 02:55:57,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2021-12-16 02:55:57,548 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8356807511737089 [2021-12-16 02:55:57,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2021-12-16 02:55:57,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2021-12-16 02:55:57,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:55:57,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2021-12-16 02:55:57,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2021-12-16 02:55:57,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-12-16 02:55:57,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-12-16 02:55:57,550 INFO L186 Difference]: Start difference. First operand has 70 places, 56 transitions, 133 flow. Second operand 3 states and 178 transitions. [2021-12-16 02:55:57,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 169 flow [2021-12-16 02:55:57,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 155 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-12-16 02:55:57,552 INFO L242 Difference]: Finished difference. Result has 62 places, 49 transitions, 110 flow [2021-12-16 02:55:57,552 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2021-12-16 02:55:57,553 INFO L334 CegarLoopForPetriNet]: 60 programPoint places, 2 predicate places. [2021-12-16 02:55:57,553 INFO L470 AbstractCegarLoop]: Abstraction has has 62 places, 49 transitions, 110 flow [2021-12-16 02:55:57,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2021-12-16 02:55:57,553 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:55:57,554 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] [2021-12-16 02:55:57,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 02:55:57,554 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-16 02:55:57,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:55:57,554 INFO L85 PathProgramCache]: Analyzing trace with hash 576623755, now seen corresponding path program 1 times [2021-12-16 02:55:57,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:55:57,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091645959] [2021-12-16 02:55:57,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:55:57,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:55:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 02:55:57,576 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 02:55:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 02:55:57,606 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 02:55:57,606 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-16 02:55:57,607 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-16 02:55:57,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-12-16 02:55:57,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 02:55:57,610 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-16 02:55:57,613 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-16 02:55:57,613 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 02:55:57,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:55:57 BasicIcfg [2021-12-16 02:55:57,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 02:55:57,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 02:55:57,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 02:55:57,635 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 02:55:57,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:55:56" (3/4) ... [2021-12-16 02:55:57,636 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-16 02:55:57,665 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 02:55:57,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 02:55:57,666 INFO L158 Benchmark]: Toolchain (without parser) took 1584.52ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 61.8MB in the beginning and 54.6MB in the end (delta: 7.2MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2021-12-16 02:55:57,666 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory was 79.5MB in the beginning and 79.4MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 02:55:57,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.91ms. Allocated memory is still 100.7MB. Free memory was 61.6MB in the beginning and 65.4MB in the end (delta: -3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 02:55:57,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.10ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 63.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 02:55:57,668 INFO L158 Benchmark]: Boogie Preprocessor took 35.76ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 62.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 02:55:57,668 INFO L158 Benchmark]: RCFGBuilder took 302.75ms. Allocated memory is still 100.7MB. Free memory was 62.1MB in the beginning and 50.7MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-16 02:55:57,668 INFO L158 Benchmark]: TraceAbstraction took 745.40ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 50.3MB in the beginning and 58.8MB in the end (delta: -8.5MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2021-12-16 02:55:57,669 INFO L158 Benchmark]: Witness Printer took 31.20ms. Allocated memory is still 136.3MB. Free memory was 58.8MB in the beginning and 54.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 02:55:57,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory was 79.5MB in the beginning and 79.4MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.91ms. Allocated memory is still 100.7MB. Free memory was 61.6MB in the beginning and 65.4MB in the end (delta: -3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.10ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 63.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.76ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 62.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 302.75ms. Allocated memory is still 100.7MB. Free memory was 62.1MB in the beginning and 50.7MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 745.40ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 50.3MB in the beginning and 58.8MB in the end (delta: -8.5MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Witness Printer took 31.20ms. Allocated memory is still 136.3MB. Free memory was 58.8MB in the beginning and 54.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; VAL [glob1=0] [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}, mutex2={4:0}] [L696] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 21 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 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 RESULT: Ultimate proved your program to be incorrect! [2021-12-16 02:55:57,723 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE