./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d 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/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:59:29,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:59:29,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:59:29,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:59:29,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:59:29,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:59:29,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:59:29,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:59:29,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:59:29,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:59:29,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:59:29,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:59:29,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:59:29,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:59:29,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:59:29,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:59:29,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:59:29,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:59:29,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:59:29,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:59:29,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:59:29,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:59:29,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:59:29,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:59:29,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:59:29,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:59:29,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:59:29,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:59:29,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:59:29,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:59:29,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:59:29,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:59:29,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:59:29,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:59:29,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:59:29,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:59:29,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:59:29,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:59:29,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:59:29,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:59:29,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:59:29,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:59:29,140 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:59:29,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:59:29,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:59:29,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:59:29,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:59:29,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:59:29,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:59:29,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:59:29,143 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:59:29,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:59:29,144 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:59:29,144 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:59:29,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:59:29,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:59:29,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:59:29,145 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:59:29,145 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:59:29,145 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:59:29,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:59:29,145 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:59:29,146 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:59:29,146 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:59:29,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:59:29,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:59:29,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:59:29,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:29,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:59:29,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:59:29,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:59:29,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:59:29,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:59:29,147 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:59:29,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:59:29,148 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:59:29,148 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:59:29,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:59:29,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:59:29,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:59:29,446 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:59:29,446 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:59:29,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-30 03:59:30,563 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:59:30,814 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:59:30,815 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-30 03:59:30,823 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/414ad3882/4549644304fe4b598578163c615e8d5d/FLAG7b0cbf60c [2023-08-30 03:59:30,832 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/414ad3882/4549644304fe4b598578163c615e8d5d [2023-08-30 03:59:30,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:59:30,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:59:30,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:30,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:59:30,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:59:30,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:30" (1/1) ... [2023-08-30 03:59:30,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2844cfcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:30, skipping insertion in model container [2023-08-30 03:59:30,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:30" (1/1) ... [2023-08-30 03:59:30,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:59:30,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:59:31,007 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2023-08-30 03:59:31,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:31,132 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:59:31,142 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2023-08-30 03:59:31,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:31,232 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:59:31,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31 WrapperNode [2023-08-30 03:59:31,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:31,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:31,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:59:31,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:59:31,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,271 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 03:59:31,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:31,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:59:31,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:59:31,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:59:31,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:59:31,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:59:31,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:59:31,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:59:31,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (1/1) ... [2023-08-30 03:59:31,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:31,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:59:31,339 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) [2023-08-30 03:59:31,345 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 [2023-08-30 03:59:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 03:59:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:59:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:59:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:59:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:59:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:59:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:59:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:59:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:59:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:59:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:59:31,366 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:59:31,508 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:59:31,509 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:59:31,662 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:59:31,665 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:59:31,666 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:59:31,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:31 BoogieIcfgContainer [2023-08-30 03:59:31,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:59:31,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:59:31,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:59:31,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:59:31,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:59:30" (1/3) ... [2023-08-30 03:59:31,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112eac30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:31, skipping insertion in model container [2023-08-30 03:59:31,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:31" (2/3) ... [2023-08-30 03:59:31,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112eac30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:31, skipping insertion in model container [2023-08-30 03:59:31,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:31" (3/3) ... [2023-08-30 03:59:31,672 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2023-08-30 03:59:31,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:59:31,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:59:31,684 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:59:31,714 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:59:31,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:31,776 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2023-08-30 03:59:31,778 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:31,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 2/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2023-08-30 03:59:31,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:31,784 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:31,788 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:59:31,797 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:31,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:31,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:31,811 INFO L130 PetriNetUnfolder]: 2/62 cut-off events. [2023-08-30 03:59:31,813 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:31,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 2/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2023-08-30 03:59:31,815 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2023-08-30 03:59:33,484 INFO L134 LiptonReduction]: Checked pairs total: 628 [2023-08-30 03:59:33,484 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-30 03:59:33,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:59:33,498 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5b10325e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:59:33,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 03:59:33,518 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 03:59:33,518 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:59:33,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:33,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:59:33,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:33,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:33,529 INFO L85 PathProgramCache]: Analyzing trace with hash 268, now seen corresponding path program 1 times [2023-08-30 03:59:33,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:59:33,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927558671] [2023-08-30 03:59:33,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:33,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:59:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:59:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:59:33,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:59:33,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927558671] [2023-08-30 03:59:33,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927558671] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:59:33,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:59:33,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:59:33,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301600810] [2023-08-30 03:59:33,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:59:33,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:59:33,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:59:33,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:59:33,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:59:33,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 136 [2023-08-30 03:59:33,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2023-08-30 03:59:33,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:59:33,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 136 [2023-08-30 03:59:33,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:59:33,675 INFO L130 PetriNetUnfolder]: 12/35 cut-off events. [2023-08-30 03:59:33,675 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:33,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 35 events. 12/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 87 event pairs, 12 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 62. Up to 36 conditions per place. [2023-08-30 03:59:33,677 INFO L137 encePairwiseOnDemand]: 134/136 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2023-08-30 03:59:33,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:59:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:59:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 139 transitions. [2023-08-30 03:59:33,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5110294117647058 [2023-08-30 03:59:33,687 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 139 transitions. [2023-08-30 03:59:33,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 139 transitions. [2023-08-30 03:59:33,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:59:33,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 139 transitions. [2023-08-30 03:59:33,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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) [2023-08-30 03:59:33,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2023-08-30 03:59:33,697 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2023-08-30 03:59:33,698 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 2 states and 139 transitions. [2023-08-30 03:59:33,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:33,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:59:33,701 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:33,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2023-08-30 03:59:33,704 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2023-08-30 03:59:33,704 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:33,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2023-08-30 03:59:33,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:33,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:59:33,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:59:33,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:33,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:33,706 INFO L85 PathProgramCache]: Analyzing trace with hash 261037, now seen corresponding path program 1 times [2023-08-30 03:59:33,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:59:33,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846519301] [2023-08-30 03:59:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:33,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:59:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:33,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:59:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:33,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 03:59:33,799 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:59:33,800 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-08-30 03:59:33,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-30 03:59:33,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-30 03:59:33,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-08-30 03:59:33,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-08-30 03:59:33,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-08-30 03:59:33,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-08-30 03:59:33,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2023-08-30 03:59:33,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:59:33,806 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:59:33,812 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:59:33,812 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:59:33,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:59:33 BasicIcfg [2023-08-30 03:59:33,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:59:33,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:59:33,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:59:33,830 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:59:33,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:31" (3/4) ... [2023-08-30 03:59:33,832 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:59:33,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:59:33,834 INFO L158 Benchmark]: Toolchain (without parser) took 2997.52ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 53.3MB in the beginning and 43.0MB in the end (delta: 10.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2023-08-30 03:59:33,834 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory was 32.4MB in the beginning and 32.3MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:33,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.54ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 54.7MB in the end (delta: -1.6MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-08-30 03:59:33,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.00ms. Allocated memory is still 77.6MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:33,836 INFO L158 Benchmark]: Boogie Preprocessor took 37.28ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 51.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:33,838 INFO L158 Benchmark]: RCFGBuilder took 356.27ms. Allocated memory is still 77.6MB. Free memory was 51.1MB in the beginning and 38.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 03:59:33,838 INFO L158 Benchmark]: TraceAbstraction took 2161.05ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 37.9MB in the beginning and 43.0MB in the end (delta: -5.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-08-30 03:59:33,839 INFO L158 Benchmark]: Witness Printer took 2.71ms. Allocated memory is still 98.6MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:33,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory was 32.4MB in the beginning and 32.3MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.54ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 54.7MB in the end (delta: -1.6MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.00ms. Allocated memory is still 77.6MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.28ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 51.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.27ms. Allocated memory is still 77.6MB. Free memory was 51.1MB in the beginning and 38.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2161.05ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 37.9MB in the beginning and 43.0MB in the end (delta: -5.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 2.71ms. Allocated memory is still 98.6MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 64 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 13 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 5 FixpointIterations, 33 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 69 TotalNumberOfCompositions, 628 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 438, independent: 395, independent conditional: 0, independent unconditional: 395, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 237, independent: 220, independent conditional: 0, independent unconditional: 220, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 438, independent: 175, independent conditional: 0, independent unconditional: 175, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 237, unknown conditional: 0, unknown unconditional: 237] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: 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, 89 locations, 8 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: 2.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces [2023-08-30 03:59:33,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:59:35,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:59:35,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:59:35,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:59:35,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:59:35,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:59:35,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:59:35,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:59:35,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:59:35,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:59:35,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:59:35,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:59:35,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:59:35,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:59:35,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:59:35,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:59:35,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:59:35,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:59:35,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:59:35,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:59:35,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:59:35,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:59:35,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:59:35,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:59:35,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:59:35,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:59:35,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:59:35,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:59:35,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:59:35,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:59:35,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:59:35,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:59:35,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:59:35,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:59:35,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:59:35,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:59:35,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:59:35,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:59:35,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:59:35,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:59:35,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:59:35,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 03:59:35,736 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:59:35,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:59:35,737 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:59:35,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:59:35,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:59:35,738 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:59:35,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:59:35,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:59:35,739 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:59:35,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:59:35,740 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:59:35,740 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:59:35,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:59:35,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:59:35,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:59:35,741 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:59:35,741 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:59:35,741 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:59:35,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:59:35,742 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:59:35,742 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 03:59:35,742 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 03:59:35,742 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:59:35,742 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:59:35,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:59:35,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:59:35,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:59:35,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:35,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:59:35,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:59:35,743 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 03:59:35,743 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 03:59:35,744 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:59:35,744 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:59:35,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:59:35,744 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 03:59:35,744 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:59:35,745 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:59:36,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:59:36,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:59:36,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:59:36,031 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:59:36,031 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:59:36,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-30 03:59:37,087 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:59:37,317 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:59:37,318 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-30 03:59:37,344 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18b00530c/925f18368ee64e7caf6bdce23c7d878f/FLAG7630af947 [2023-08-30 03:59:37,356 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18b00530c/925f18368ee64e7caf6bdce23c7d878f [2023-08-30 03:59:37,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:59:37,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:59:37,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:37,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:59:37,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:59:37,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228ec2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37, skipping insertion in model container [2023-08-30 03:59:37,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:59:37,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:59:37,505 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2023-08-30 03:59:37,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:37,613 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:59:37,626 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2023-08-30 03:59:37,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:37,698 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:59:37,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37 WrapperNode [2023-08-30 03:59:37,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:37,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:37,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:59:37,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:59:37,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,749 INFO L138 Inliner]: procedures = 167, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 03:59:37,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:37,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:59:37,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:59:37,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:59:37,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:59:37,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:59:37,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:59:37,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:59:37,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (1/1) ... [2023-08-30 03:59:37,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:37,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:59:37,831 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) [2023-08-30 03:59:37,849 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 [2023-08-30 03:59:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 03:59:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:59:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:59:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:59:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:59:37,857 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:59:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:59:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 03:59:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 03:59:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 03:59:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:59:37,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:59:37,859 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:59:37,997 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:59:37,999 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:59:38,106 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:59:38,111 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:59:38,111 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:59:38,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:38 BoogieIcfgContainer [2023-08-30 03:59:38,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:59:38,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:59:38,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:59:38,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:59:38,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:59:37" (1/3) ... [2023-08-30 03:59:38,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1addf37b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:38, skipping insertion in model container [2023-08-30 03:59:38,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:37" (2/3) ... [2023-08-30 03:59:38,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1addf37b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:38, skipping insertion in model container [2023-08-30 03:59:38,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:38" (3/3) ... [2023-08-30 03:59:38,117 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2023-08-30 03:59:38,128 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:59:38,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:59:38,129 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:59:38,165 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:59:38,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:38,230 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2023-08-30 03:59:38,231 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:38,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 2/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 03:59:38,234 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:38,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:38,240 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:59:38,250 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:38,252 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:38,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:38,272 INFO L130 PetriNetUnfolder]: 2/62 cut-off events. [2023-08-30 03:59:38,272 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:38,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 2/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 35 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 03:59:38,273 INFO L119 LiptonReduction]: Number of co-enabled transitions 352 [2023-08-30 03:59:41,151 INFO L134 LiptonReduction]: Checked pairs total: 637 [2023-08-30 03:59:41,151 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-08-30 03:59:41,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:59:41,177 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@a9705a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:59:41,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 03:59:41,180 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:59:41,180 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:59:41,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:41,181 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:59:41,181 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:41,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:41,192 INFO L85 PathProgramCache]: Analyzing trace with hash 261, now seen corresponding path program 1 times [2023-08-30 03:59:41,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:59:41,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571907929] [2023-08-30 03:59:41,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:41,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:59:41,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:59:41,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 03:59:41,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-08-30 03:59:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:59:41,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-30 03:59:41,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:59:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:59:41,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:59:41,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:59:41,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571907929] [2023-08-30 03:59:41,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571907929] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:59:41,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:59:41,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:59:41,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372644030] [2023-08-30 03:59:41,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:59:41,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:59:41,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:59:41,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:59:41,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:59:41,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 131 [2023-08-30 03:59:41,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2023-08-30 03:59:41,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:59:41,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 131 [2023-08-30 03:59:41,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:59:41,330 INFO L130 PetriNetUnfolder]: 12/35 cut-off events. [2023-08-30 03:59:41,330 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:41,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 35 events. 12/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 88 event pairs, 12 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 62. Up to 36 conditions per place. [2023-08-30 03:59:41,331 INFO L137 encePairwiseOnDemand]: 129/131 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2023-08-30 03:59:41,331 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:59:41,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:59:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 139 transitions. [2023-08-30 03:59:41,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5305343511450382 [2023-08-30 03:59:41,347 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 139 transitions. [2023-08-30 03:59:41,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 139 transitions. [2023-08-30 03:59:41,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:59:41,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 139 transitions. [2023-08-30 03:59:41,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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) [2023-08-30 03:59:41,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2023-08-30 03:59:41,359 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2023-08-30 03:59:41,360 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 2 states and 139 transitions. [2023-08-30 03:59:41,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:41,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:59:41,363 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:41,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2023-08-30 03:59:41,378 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2023-08-30 03:59:41,378 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:41,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2023-08-30 03:59:41,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:41,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:59:41,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-08-30 03:59:41,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:59:41,580 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:41,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:41,580 INFO L85 PathProgramCache]: Analyzing trace with hash 255234, now seen corresponding path program 1 times [2023-08-30 03:59:41,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:59:41,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681959126] [2023-08-30 03:59:41,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:41,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:59:41,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:59:41,582 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 03:59:41,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-08-30 03:59:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:41,626 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:59:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:41,657 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-08-30 03:59:41,657 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:59:41,658 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-08-30 03:59:41,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-30 03:59:41,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-30 03:59:41,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-08-30 03:59:41,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-08-30 03:59:41,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-08-30 03:59:41,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-08-30 03:59:41,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2023-08-30 03:59:41,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-08-30 03:59:41,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:59:41,870 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:59:41,874 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:59:41,874 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:59:41,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:59:41 BasicIcfg [2023-08-30 03:59:41,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:59:41,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:59:41,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:59:41,887 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:59:41,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:38" (3/4) ... [2023-08-30 03:59:41,889 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:59:41,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:59:41,890 INFO L158 Benchmark]: Toolchain (without parser) took 4530.84ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 59.9MB in the beginning and 73.5MB in the end (delta: -13.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2023-08-30 03:59:41,890 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 38.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:41,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.40ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 39.9MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-30 03:59:41,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.58ms. Allocated memory is still 83.9MB. Free memory was 39.9MB in the beginning and 37.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:41,891 INFO L158 Benchmark]: Boogie Preprocessor took 54.78ms. Allocated memory is still 83.9MB. Free memory was 37.8MB in the beginning and 63.4MB in the end (delta: -25.7MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:41,892 INFO L158 Benchmark]: RCFGBuilder took 306.61ms. Allocated memory is still 83.9MB. Free memory was 63.4MB in the beginning and 49.4MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 03:59:41,892 INFO L158 Benchmark]: TraceAbstraction took 3772.94ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.8MB in the beginning and 74.4MB in the end (delta: -25.6MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2023-08-30 03:59:41,892 INFO L158 Benchmark]: Witness Printer took 2.56ms. Allocated memory is still 100.7MB. Free memory was 74.4MB in the beginning and 73.5MB in the end (delta: 908.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:41,894 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 60.8MB. Free memory is still 38.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.40ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 39.9MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.58ms. Allocated memory is still 83.9MB. Free memory was 39.9MB in the beginning and 37.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.78ms. Allocated memory is still 83.9MB. Free memory was 37.8MB in the beginning and 63.4MB in the end (delta: -25.7MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.61ms. Allocated memory is still 83.9MB. Free memory was 63.4MB in the beginning and 49.4MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3772.94ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.8MB in the beginning and 74.4MB in the end (delta: -25.6MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * Witness Printer took 2.56ms. Allocated memory is still 100.7MB. Free memory was 74.4MB in the beginning and 73.5MB in the end (delta: 908.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 64 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 13 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 637 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 422, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 226, independent: 208, independent conditional: 0, independent unconditional: 208, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 422, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 226, unknown conditional: 0, unknown unconditional: 226] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={7:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: 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, 88 locations, 8 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: 3.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces [2023-08-30 03:59:41,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample