./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 f4b24e32 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-?-f4b24e3 [2022-07-13 21:55:07,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:55:07,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:55:07,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:55:07,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:55:07,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:55:07,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:55:07,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:55:07,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:55:07,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:55:07,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:55:07,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:55:07,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:55:07,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:55:07,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:55:07,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:55:07,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:55:07,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:55:07,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:55:07,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:55:07,769 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:55:07,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:55:07,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:55:07,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:55:07,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:55:07,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:55:07,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:55:07,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:55:07,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:55:07,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:55:07,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:55:07,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:55:07,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:55:07,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:55:07,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:55:07,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:55:07,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:55:07,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:55:07,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:55:07,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:55:07,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:55:07,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:55:07,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:55:07,811 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:55:07,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:55:07,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:55:07,811 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:55:07,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:55:07,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:55:07,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:55:07,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:55:07,813 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:55:07,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:55:07,814 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:55:07,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:55:07,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:55:07,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:55:07,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:55:07,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:55:07,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:55:07,815 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:55:07,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:55:07,815 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:55:07,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:55:07,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:55:07,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:55:07,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:55:07,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:55:07,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:55:07,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:55:07,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:55:07,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:55:07,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:55:07,817 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:55:07,817 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:55:07,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:55:07,817 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc [2022-07-13 21:55:07,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:55:08,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:55:08,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:55:08,024 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:55:08,027 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:55:08,028 INFO L432 ainManager$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 [2022-07-13 21:55:08,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a29dc761/560741ca81bc49cb881cfd48f97d8581/FLAG9ccaa067b [2022-07-13 21:55:08,443 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:55:08,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-07-13 21:55:08,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a29dc761/560741ca81bc49cb881cfd48f97d8581/FLAG9ccaa067b [2022-07-13 21:55:08,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a29dc761/560741ca81bc49cb881cfd48f97d8581 [2022-07-13 21:55:08,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:55:08,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:55:08,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:55:08,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:55:08,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:55:08,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c58dd42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08, skipping insertion in model container [2022-07-13 21:55:08,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:55:08,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:55:08,635 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] [2022-07-13 21:55:08,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:55:08,760 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:55:08,771 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] [2022-07-13 21:55:08,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:55:08,835 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:55:08,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08 WrapperNode [2022-07-13 21:55:08,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:55:08,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:55:08,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:55:08,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:55:08,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,884 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-07-13 21:55:08,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:55:08,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:55:08,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:55:08,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:55:08,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:55:08,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:55:08,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:55:08,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:55:08,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (1/1) ... [2022-07-13 21:55:08,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:55:08,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:55:08,966 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) [2022-07-13 21:55:08,992 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 [2022-07-13 21:55:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 21:55:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 21:55:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 21:55:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:55:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 21:55:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 21:55:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 21:55:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 21:55:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:55:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:55:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:55:09,014 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 21:55:09,121 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:55:09,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:55:09,227 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:55:09,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:55:09,234 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 21:55:09,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:55:09 BoogieIcfgContainer [2022-07-13 21:55:09,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:55:09,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:55:09,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:55:09,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:55:09,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:55:08" (1/3) ... [2022-07-13 21:55:09,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee17eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:55:09, skipping insertion in model container [2022-07-13 21:55:09,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:55:08" (2/3) ... [2022-07-13 21:55:09,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee17eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:55:09, skipping insertion in model container [2022-07-13 21:55:09,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:55:09" (3/3) ... [2022-07-13 21:55:09,243 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2022-07-13 21:55:09,254 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 21:55:09,260 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:55:09,260 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 21:55:09,260 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 21:55:09,289 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-13 21:55:09,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2022-07-13 21:55:09,342 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2022-07-13 21:55:09,343 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-13 21:55:09,346 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. [2022-07-13 21:55:09,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 150 flow [2022-07-13 21:55:09,365 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2022-07-13 21:55:09,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:55:09,376 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@615ca37a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7745d43d [2022-07-13 21:55:09,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 21:55:09,386 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2022-07-13 21:55:09,387 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:55:09,387 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:55:09,388 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] [2022-07-13 21:55:09,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 21:55:09,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:55:09,393 INFO L85 PathProgramCache]: Analyzing trace with hash -881270525, now seen corresponding path program 1 times [2022-07-13 21:55:09,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:55:09,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311259821] [2022-07-13 21:55:09,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:55:09,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:55:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:55:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:55:09,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:55:09,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311259821] [2022-07-13 21:55:09,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311259821] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:55:09,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:55:09,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 21:55:09,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104368666] [2022-07-13 21:55:09,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:55:09,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 21:55:09,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:55:09,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 21:55:09,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 21:55:09,673 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2022-07-13 21:55:09,675 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) [2022-07-13 21:55:09,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:55:09,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2022-07-13 21:55:09,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:55:09,806 INFO L129 PetriNetUnfolder]: 8/99 cut-off events. [2022-07-13 21:55:09,807 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-13 21:55:09,814 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 202 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. [2022-07-13 21:55:09,815 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/68 dead transitions. [2022-07-13 21:55:09,816 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 68 transitions, 179 flow [2022-07-13 21:55:09,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 21:55:09,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-13 21:55:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 435 transitions. [2022-07-13 21:55:09,826 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8752515090543259 [2022-07-13 21:55:09,827 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 435 transitions. [2022-07-13 21:55:09,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 435 transitions. [2022-07-13 21:55:09,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:55:09,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 435 transitions. [2022-07-13 21:55:09,834 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) [2022-07-13 21:55:09,845 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) [2022-07-13 21:55:09,846 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) [2022-07-13 21:55:09,847 INFO L186 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 7 states and 435 transitions. [2022-07-13 21:55:09,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 68 transitions, 179 flow [2022-07-13 21:55:09,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-13 21:55:09,855 INFO L242 Difference]: Finished difference. Result has 70 places, 56 transitions, 133 flow [2022-07-13 21:55:09,857 INFO L262 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} [2022-07-13 21:55:09,859 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 10 predicate places. [2022-07-13 21:55:09,860 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 133 flow [2022-07-13 21:55:09,860 INFO L496 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) [2022-07-13 21:55:09,860 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:55:09,861 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] [2022-07-13 21:55:09,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:55:09,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 21:55:09,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:55:09,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1191502746, now seen corresponding path program 1 times [2022-07-13 21:55:09,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:55:09,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156327353] [2022-07-13 21:55:09,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:55:09,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:55:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:55:09,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:55:09,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:55:09,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156327353] [2022-07-13 21:55:09,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156327353] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:55:09,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:55:09,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 21:55:09,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759289129] [2022-07-13 21:55:09,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:55:09,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 21:55:09,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:55:09,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 21:55:09,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 21:55:09,927 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 71 [2022-07-13 21:55:09,927 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) [2022-07-13 21:55:09,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:55:09,928 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 71 [2022-07-13 21:55:09,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:55:09,971 INFO L129 PetriNetUnfolder]: 1/72 cut-off events. [2022-07-13 21:55:09,972 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-13 21:55:09,972 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 72 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. [2022-07-13 21:55:09,972 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/58 dead transitions. [2022-07-13 21:55:09,973 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 169 flow [2022-07-13 21:55:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 21:55:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-13 21:55:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2022-07-13 21:55:09,974 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8356807511737089 [2022-07-13 21:55:09,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2022-07-13 21:55:09,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2022-07-13 21:55:09,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:55:09,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2022-07-13 21:55:09,976 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) [2022-07-13 21:55:09,977 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) [2022-07-13 21:55:09,977 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) [2022-07-13 21:55:09,977 INFO L186 Difference]: Start difference. First operand has 70 places, 56 transitions, 133 flow. Second operand 3 states and 178 transitions. [2022-07-13 21:55:09,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 169 flow [2022-07-13 21:55:09,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 155 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-07-13 21:55:09,980 INFO L242 Difference]: Finished difference. Result has 62 places, 49 transitions, 110 flow [2022-07-13 21:55:09,980 INFO L262 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} [2022-07-13 21:55:09,980 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 2 predicate places. [2022-07-13 21:55:09,981 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 49 transitions, 110 flow [2022-07-13 21:55:09,981 INFO L496 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) [2022-07-13 21:55:09,981 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:55:09,981 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] [2022-07-13 21:55:09,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 21:55:09,982 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 21:55:09,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:55:09,982 INFO L85 PathProgramCache]: Analyzing trace with hash 576623755, now seen corresponding path program 1 times [2022-07-13 21:55:09,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:55:09,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242535657] [2022-07-13 21:55:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:55:09,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:55:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:55:10,026 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:55:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:55:10,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:55:10,059 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:55:10,059 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-13 21:55:10,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-07-13 21:55:10,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 21:55:10,061 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-13 21:55:10,065 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 21:55:10,065 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 21:55:10,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 09:55:10 BasicIcfg [2022-07-13 21:55:10,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 21:55:10,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 21:55:10,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 21:55:10,091 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 21:55:10,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:55:09" (3/4) ... [2022-07-13 21:55:10,093 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 21:55:10,126 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 21:55:10,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 21:55:10,129 INFO L158 Benchmark]: Toolchain (without parser) took 1659.12ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 50.3MB in the beginning and 75.3MB in the end (delta: -25.0MB). Peak memory consumption was 890.0kB. Max. memory is 16.1GB. [2022-07-13 21:55:10,130 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:55:10,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.31ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 53.1MB in the end (delta: -3.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 21:55:10,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.49ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 51.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:55:10,136 INFO L158 Benchmark]: Boogie Preprocessor took 37.57ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 49.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:55:10,138 INFO L158 Benchmark]: RCFGBuilder took 312.02ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 38.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 21:55:10,139 INFO L158 Benchmark]: TraceAbstraction took 852.94ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 37.7MB in the beginning and 79.5MB in the end (delta: -41.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:55:10,139 INFO L158 Benchmark]: Witness Printer took 37.97ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 75.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 21:55:10,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.31ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 53.1MB in the end (delta: -3.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.49ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 51.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.57ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 49.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 312.02ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 38.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 852.94ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 37.7MB in the beginning and 79.5MB in the end (delta: -41.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.97ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 75.3MB 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: - 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: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s 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, 0.1s 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! [2022-07-13 21:55:10,170 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