./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.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_neg.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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --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 03:59:23,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:59:23,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:59:23,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:59:23,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:59:23,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:59:23,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:59:23,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:59:23,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:59:23,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:59:23,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:59:23,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:59:23,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:59:23,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:59:23,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:59:23,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:59:23,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:59:23,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:59:23,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:59:23,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:59:23,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:59:23,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:59:23,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:59:23,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:59:23,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:59:23,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:59:23,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:59:23,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:59:23,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:59:23,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:59:23,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:59:23,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:59:23,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:59:23,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:59:23,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:59:23,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:59:23,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:59:23,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:59:23,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:59:23,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:59:23,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:59:23,205 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:59:23,237 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:59:23,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:59:23,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:59:23,239 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:59:23,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:59:23,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:59:23,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:59:23,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:59:23,241 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:59:23,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:59:23,242 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:59:23,242 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:59:23,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:59:23,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:59:23,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:59:23,243 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:59:23,243 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:59:23,243 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:59:23,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:59:23,243 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:59:23,244 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:59:23,244 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:59:23,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:59:23,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:59:23,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:59:23,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:23,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:59:23,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:59:23,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:59:23,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:59:23,246 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:59:23,246 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:59:23,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:59:23,246 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:59:23,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:59:23,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:59:23,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:59:23,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:59:23,595 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:59:23,595 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:59:23,596 INFO L432 ainManager$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_neg.i [2023-08-30 03:59:24,683 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:59:24,968 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:59:24,968 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-08-30 03:59:24,977 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d3b0eba5/f63f40af33f44121b637d7cc25b4d6c3/FLAG723028668 [2023-08-30 03:59:24,991 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d3b0eba5/f63f40af33f44121b637d7cc25b4d6c3 [2023-08-30 03:59:24,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:59:24,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:59:24,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:24,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:59:24,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:59:24,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ab7006c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24, skipping insertion in model container [2023-08-30 03:59:25,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:25,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:59:25,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:59:25,165 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_neg.i[1097,1110] [2023-08-30 03:59:25,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:25,276 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:59:25,286 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_neg.i[1097,1110] [2023-08-30 03:59:25,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:25,400 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:59:25,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25 WrapperNode [2023-08-30 03:59:25,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:25,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:25,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:59:25,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:59:25,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,461 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 03:59:25,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:25,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:59:25,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:59:25,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:59:25,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,492 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:59:25,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:59:25,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:59:25,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:59:25,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (1/1) ... [2023-08-30 03:59:25,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:25,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:59:25,522 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 03:59:25,540 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 03:59:25,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 03:59:25,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:59:25,561 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:59:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:59:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:59:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:59:25,562 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:59:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:59:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:59:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:59:25,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:59:25,564 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 03:59:25,663 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:59:25,665 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:59:25,832 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:59:25,837 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:59:25,838 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:59:25,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:25 BoogieIcfgContainer [2023-08-30 03:59:25,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:59:25,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:59:25,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:59:25,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:59:25,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:59:24" (1/3) ... [2023-08-30 03:59:25,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:25, skipping insertion in model container [2023-08-30 03:59:25,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:25" (2/3) ... [2023-08-30 03:59:25,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:25, skipping insertion in model container [2023-08-30 03:59:25,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:25" (3/3) ... [2023-08-30 03:59:25,846 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2023-08-30 03:59:25,866 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:59:25,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:59:25,867 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:59:25,957 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:59:26,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:26,048 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2023-08-30 03:59:26,050 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:26,054 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 03:59:26,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:26,060 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:26,064 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:59:26,089 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:26,093 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:26,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:26,115 INFO L130 PetriNetUnfolder]: 2/62 cut-off events. [2023-08-30 03:59:26,115 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:26,116 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 03:59:26,118 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2023-08-30 03:59:28,417 INFO L134 LiptonReduction]: Checked pairs total: 628 [2023-08-30 03:59:28,417 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-30 03:59:28,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:59:28,435 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;@1506efe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:59:28,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 03:59:28,437 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 03:59:28,437 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:59:28,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:28,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:59:28,439 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 03:59:28,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:28,443 INFO L85 PathProgramCache]: Analyzing trace with hash 268, now seen corresponding path program 1 times [2023-08-30 03:59:28,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:59:28,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508812625] [2023-08-30 03:59:28,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:28,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:59:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:59:28,553 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 03:59:28,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:59:28,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508812625] [2023-08-30 03:59:28,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508812625] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:59:28,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:59:28,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:59:28,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481206674] [2023-08-30 03:59:28,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:59:28,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:59:28,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:59:28,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:59:28,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:59:28,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 136 [2023-08-30 03:59:28,583 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 03:59:28,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:59:28,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 136 [2023-08-30 03:59:28,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:59:28,609 INFO L130 PetriNetUnfolder]: 12/35 cut-off events. [2023-08-30 03:59:28,610 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:28,610 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 03:59:28,611 INFO L137 encePairwiseOnDemand]: 134/136 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2023-08-30 03:59:28,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:28,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:59:28,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:59:28,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 139 transitions. [2023-08-30 03:59:28,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5110294117647058 [2023-08-30 03:59:28,623 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 139 transitions. [2023-08-30 03:59:28,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 139 transitions. [2023-08-30 03:59:28,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:59:28,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 139 transitions. [2023-08-30 03:59:28,633 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 03:59:28,637 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 03:59:28,637 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 03:59:28,639 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 2 states and 139 transitions. [2023-08-30 03:59:28,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:28,641 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 03:59:28,642 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:28,643 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 03:59:28,647 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2023-08-30 03:59:28,648 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:28,648 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 03:59:28,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:28,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:59:28,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:59:28,649 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 03:59:28,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:28,657 INFO L85 PathProgramCache]: Analyzing trace with hash 261037, now seen corresponding path program 1 times [2023-08-30 03:59:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:59:28,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280088608] [2023-08-30 03:59:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:28,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:59:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:28,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:59:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:28,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 03:59:28,761 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:59:28,762 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-08-30 03:59:28,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-30 03:59:28,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-30 03:59:28,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-08-30 03:59:28,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-08-30 03:59:28,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-08-30 03:59:28,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-08-30 03:59:28,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2023-08-30 03:59:28,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:59:28,766 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:59:28,771 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:59:28,771 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:59:28,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:59:28 BasicIcfg [2023-08-30 03:59:28,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:59:28,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:59:28,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:59:28,793 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:59:28,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:25" (3/4) ... [2023-08-30 03:59:28,796 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:59:28,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:59:28,798 INFO L158 Benchmark]: Toolchain (without parser) took 3802.93ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.4MB in the beginning and 61.3MB in the end (delta: -11.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2023-08-30 03:59:28,799 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 54.5MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:28,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.51ms. Allocated memory is still 73.4MB. Free memory was 49.4MB in the beginning and 48.7MB in the end (delta: 689.4kB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-08-30 03:59:28,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.33ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 46.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:28,800 INFO L158 Benchmark]: Boogie Preprocessor took 31.94ms. Allocated memory is still 73.4MB. Free memory was 46.6MB in the beginning and 45.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:28,800 INFO L158 Benchmark]: RCFGBuilder took 344.31ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 32.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 03:59:28,800 INFO L158 Benchmark]: TraceAbstraction took 2951.68ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 31.9MB in the beginning and 62.0MB in the end (delta: -30.1MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:28,801 INFO L158 Benchmark]: Witness Printer took 3.31ms. Allocated memory is still 88.1MB. Free memory was 62.0MB in the beginning and 61.3MB in the end (delta: 679.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:28,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 54.5MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.51ms. Allocated memory is still 73.4MB. Free memory was 49.4MB in the beginning and 48.7MB in the end (delta: 689.4kB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.33ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 46.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.94ms. Allocated memory is still 73.4MB. Free memory was 46.6MB in the beginning and 45.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 344.31ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 32.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2951.68ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 31.9MB in the beginning and 62.0MB in the end (delta: -30.1MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 3.31ms. Allocated memory is still 88.1MB. Free memory was 62.0MB in the beginning and 61.3MB in the end (delta: 679.3kB). 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: 2.3s, 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 TRUE 1 t == 42 [L688] 1 glob1 = 1 [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=1, 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: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, 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, 0.1s 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 03:59:28,821 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_neg.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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --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 03:59:30,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:59:30,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:59:30,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:59:30,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:59:30,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:59:30,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:59:30,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:59:30,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:59:30,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:59:30,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:59:30,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:59:30,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:59:30,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:59:30,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:59:30,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:59:30,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:59:30,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:59:30,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:59:30,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:59:30,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:59:30,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:59:30,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:59:30,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:59:30,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:59:30,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:59:30,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:59:30,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:59:30,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:59:30,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:59:30,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:59:30,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:59:30,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:59:30,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:59:30,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:59:30,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:59:30,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:59:30,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:59:30,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:59:30,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:59:30,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:59:30,864 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 03:59:30,897 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:59:30,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:59:30,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:59:30,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:59:30,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:59:30,900 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:59:30,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:59:30,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:59:30,901 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:59:30,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:59:30,902 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:59:30,902 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:59:30,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:59:30,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:59:30,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:59:30,903 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:59:30,903 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:59:30,903 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:59:30,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:59:30,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:59:30,904 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 03:59:30,904 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 03:59:30,904 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:59:30,904 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:59:30,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:59:30,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:59:30,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:59:30,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:30,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:59:30,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:59:30,906 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 03:59:30,906 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 03:59:30,906 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:59:30,906 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:59:30,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:59:30,907 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 03:59:30,907 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:59:30,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:59:31,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:59:31,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:59:31,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:59:31,248 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:59:31,249 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:59:31,251 INFO L432 ainManager$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_neg.i [2023-08-30 03:59:32,331 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:59:32,588 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:59:32,588 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-08-30 03:59:32,599 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0f16b9e0/add82cfbf523438b86981428ab8e7ca2/FLAG404cd254d [2023-08-30 03:59:32,611 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0f16b9e0/add82cfbf523438b86981428ab8e7ca2 [2023-08-30 03:59:32,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:59:32,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:59:32,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:32,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:59:32,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:59:32,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:32" (1/1) ... [2023-08-30 03:59:32,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b173e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:32, skipping insertion in model container [2023-08-30 03:59:32,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:32" (1/1) ... [2023-08-30 03:59:32,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:59:32,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:59:32,782 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_neg.i[1097,1110] [2023-08-30 03:59:32,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:32,933 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:59:32,949 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_neg.i[1097,1110] [2023-08-30 03:59:32,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:33,015 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:59:33,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33 WrapperNode [2023-08-30 03:59:33,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:33,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:33,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:59:33,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:59:33,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,091 INFO L138 Inliner]: procedures = 167, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 03:59:33,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:33,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:59:33,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:59:33,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:59:33,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,132 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:59:33,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:59:33,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:59:33,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:59:33,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (1/1) ... [2023-08-30 03:59:33,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:33,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:59:33,166 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 03:59:33,188 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 03:59:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 03:59:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:59:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:59:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:59:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:59:33,213 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:59:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:59:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 03:59:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 03:59:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 03:59:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:59:33,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:59:33,216 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 03:59:33,407 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:59:33,412 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:59:33,597 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:59:33,603 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:59:33,604 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:59:33,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:33 BoogieIcfgContainer [2023-08-30 03:59:33,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:59:33,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:59:33,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:59:33,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:59:33,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:59:32" (1/3) ... [2023-08-30 03:59:33,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5fa861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:33, skipping insertion in model container [2023-08-30 03:59:33,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:33" (2/3) ... [2023-08-30 03:59:33,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5fa861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:33, skipping insertion in model container [2023-08-30 03:59:33,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:33" (3/3) ... [2023-08-30 03:59:33,614 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2023-08-30 03:59:33,628 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:59:33,629 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:59:33,629 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:59:33,713 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:59:33,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:33,817 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2023-08-30 03:59:33,818 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:33,821 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 03:59:33,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:33,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:33,827 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:59:33,833 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:33,836 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:33,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:33,861 INFO L130 PetriNetUnfolder]: 2/62 cut-off events. [2023-08-30 03:59:33,861 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:33,862 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 03:59:33,863 INFO L119 LiptonReduction]: Number of co-enabled transitions 352 [2023-08-30 03:59:37,668 INFO L134 LiptonReduction]: Checked pairs total: 637 [2023-08-30 03:59:37,669 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-08-30 03:59:37,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:59:37,686 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;@47636642, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:59:37,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 03:59:37,687 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:59:37,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:59:37,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:37,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:59:37,689 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 03:59:37,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:37,693 INFO L85 PathProgramCache]: Analyzing trace with hash 261, now seen corresponding path program 1 times [2023-08-30 03:59:37,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:59:37,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575699769] [2023-08-30 03:59:37,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:37,704 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 03:59:37,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:59:37,708 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 03:59:37,710 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 03:59:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:59:37,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-30 03:59:37,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:59:37,775 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 03:59:37,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:59:37,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:59:37,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575699769] [2023-08-30 03:59:37,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575699769] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:59:37,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:59:37,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:59:37,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226433122] [2023-08-30 03:59:37,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:59:37,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:59:37,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:59:37,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:59:37,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:59:37,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 131 [2023-08-30 03:59:37,809 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 03:59:37,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:59:37,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 131 [2023-08-30 03:59:37,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:59:37,859 INFO L130 PetriNetUnfolder]: 12/35 cut-off events. [2023-08-30 03:59:37,859 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:37,860 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 03:59:37,861 INFO L137 encePairwiseOnDemand]: 129/131 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2023-08-30 03:59:37,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:37,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:59:37,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:59:37,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 139 transitions. [2023-08-30 03:59:37,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5305343511450382 [2023-08-30 03:59:37,887 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 139 transitions. [2023-08-30 03:59:37,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 139 transitions. [2023-08-30 03:59:37,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:59:37,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 139 transitions. [2023-08-30 03:59:37,893 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 03:59:37,896 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 03:59:37,913 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 03:59:37,915 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 2 states and 139 transitions. [2023-08-30 03:59:37,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:37,917 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 03:59:37,918 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:37,920 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 03:59:37,923 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2023-08-30 03:59:37,923 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:37,923 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 03:59:37,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:37,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:59:37,950 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 (2)] Forceful destruction successful, exit code 0 [2023-08-30 03:59:38,145 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 03:59:38,146 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 03:59:38,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:38,146 INFO L85 PathProgramCache]: Analyzing trace with hash 255234, now seen corresponding path program 1 times [2023-08-30 03:59:38,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:59:38,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341458609] [2023-08-30 03:59:38,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:38,147 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 03:59:38,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:59:38,149 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 03:59:38,152 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 03:59:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:38,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:59:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:38,256 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-08-30 03:59:38,258 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:59:38,259 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-08-30 03:59:38,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-30 03:59:38,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-30 03:59:38,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-08-30 03:59:38,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-08-30 03:59:38,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-08-30 03:59:38,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-08-30 03:59:38,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2023-08-30 03:59:38,279 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 03:59:38,473 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 03:59:38,474 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:59:38,478 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:59:38,479 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:59:38,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:59:38 BasicIcfg [2023-08-30 03:59:38,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:59:38,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:59:38,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:59:38,495 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:59:38,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:33" (3/4) ... [2023-08-30 03:59:38,498 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:59:38,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:59:38,498 INFO L158 Benchmark]: Toolchain (without parser) took 5883.85ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.8MB in the beginning and 32.6MB in the end (delta: 21.2MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-08-30 03:59:38,499 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:38,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.51ms. Allocated memory is still 77.6MB. Free memory was 53.6MB in the beginning and 34.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 03:59:38,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.50ms. Allocated memory is still 77.6MB. Free memory was 34.0MB in the beginning and 55.5MB in the end (delta: -21.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 03:59:38,500 INFO L158 Benchmark]: Boogie Preprocessor took 42.42ms. Allocated memory is still 77.6MB. Free memory was 55.5MB in the beginning and 53.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:38,500 INFO L158 Benchmark]: RCFGBuilder took 469.66ms. Allocated memory is still 77.6MB. Free memory was 53.6MB in the beginning and 39.7MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:59:38,501 INFO L158 Benchmark]: TraceAbstraction took 4886.50ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 38.9MB in the beginning and 33.4MB in the end (delta: 5.6MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-08-30 03:59:38,501 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 94.4MB. Free memory was 33.4MB in the beginning and 32.6MB in the end (delta: 773.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:38,503 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.51ms. Allocated memory is still 77.6MB. Free memory was 53.6MB in the beginning and 34.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.50ms. Allocated memory is still 77.6MB. Free memory was 34.0MB in the beginning and 55.5MB in the end (delta: -21.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.42ms. Allocated memory is still 77.6MB. Free memory was 55.5MB in the beginning and 53.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 469.66ms. Allocated memory is still 77.6MB. Free memory was 53.6MB in the beginning and 39.7MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4886.50ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 38.9MB in the beginning and 33.4MB in the end (delta: 5.6MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 94.4MB. Free memory was 33.4MB in the beginning and 32.6MB in the end (delta: 773.2kB). 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: 3.8s, 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 TRUE 1 t == 42 [L688] 1 glob1 = 1 [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=1, 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: 4.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, 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 03:59:38,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample