./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --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 04:32:42,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 04:32:42,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 04:32:42,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 04:32:42,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 04:32:42,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 04:32:42,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 04:32:42,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 04:32:42,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 04:32:42,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 04:32:42,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 04:32:42,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 04:32:42,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 04:32:42,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 04:32:42,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 04:32:42,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 04:32:42,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 04:32:42,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 04:32:42,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 04:32:42,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 04:32:42,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 04:32:42,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 04:32:42,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 04:32:42,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 04:32:42,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 04:32:42,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 04:32:42,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 04:32:42,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 04:32:42,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 04:32:42,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 04:32:42,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 04:32:42,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 04:32:42,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 04:32:42,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 04:32:42,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 04:32:42,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 04:32:42,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 04:32:42,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 04:32:42,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 04:32:42,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 04:32:42,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 04:32:42,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 04:32:42,313 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 04:32:42,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 04:32:42,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 04:32:42,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 04:32:42,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 04:32:42,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 04:32:42,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 04:32:42,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 04:32:42,316 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 04:32:42,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 04:32:42,317 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 04:32:42,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 04:32:42,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 04:32:42,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 04:32:42,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 04:32:42,318 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 04:32:42,318 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 04:32:42,319 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 04:32:42,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 04:32:42,319 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 04:32:42,319 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 04:32:42,319 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 04:32:42,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 04:32:42,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 04:32:42,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 04:32:42,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:32:42,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 04:32:42,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 04:32:42,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 04:32:42,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 04:32:42,321 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 04:32:42,321 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 04:32:42,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 04:32:42,322 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 04:32:42,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 04:32:42,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 04:32:42,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 04:32:42,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 04:32:42,636 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 04:32:42,636 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 04:32:42,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-30 04:32:43,744 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 04:32:43,928 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 04:32:43,929 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-30 04:32:43,943 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295e04110/bc7a58cbc24d4d74b0a36c4288f8c29c/FLAG9eadd3e27 [2023-08-30 04:32:43,981 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295e04110/bc7a58cbc24d4d74b0a36c4288f8c29c [2023-08-30 04:32:43,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 04:32:43,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 04:32:43,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 04:32:43,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 04:32:43,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 04:32:43,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:32:43" (1/1) ... [2023-08-30 04:32:43,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19025c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:43, skipping insertion in model container [2023-08-30 04:32:43,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:32:43" (1/1) ... [2023-08-30 04:32:43,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 04:32:44,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 04:32:44,210 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-08-30 04:32:44,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:32:44,380 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 04:32:44,393 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-08-30 04:32:44,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:32:44,473 INFO L208 MainTranslator]: Completed translation [2023-08-30 04:32:44,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44 WrapperNode [2023-08-30 04:32:44,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 04:32:44,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 04:32:44,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 04:32:44,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 04:32:44,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,535 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-08-30 04:32:44,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 04:32:44,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 04:32:44,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 04:32:44,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 04:32:44,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,557 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 04:32:44,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 04:32:44,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 04:32:44,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 04:32:44,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (1/1) ... [2023-08-30 04:32:44,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:32:44,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 04:32:44,599 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 04:32:44,629 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 04:32:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 04:32:44,644 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 04:32:44,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 04:32:44,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 04:32:44,644 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 04:32:44,644 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 04:32:44,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 04:32:44,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 04:32:44,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 04:32:44,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 04:32:44,646 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 04:32:44,788 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 04:32:44,790 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 04:32:44,997 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 04:32:45,004 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 04:32:45,005 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 04:32:45,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:32:45 BoogieIcfgContainer [2023-08-30 04:32:45,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 04:32:45,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 04:32:45,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 04:32:45,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 04:32:45,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:32:43" (1/3) ... [2023-08-30 04:32:45,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3906f2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:32:45, skipping insertion in model container [2023-08-30 04:32:45,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:44" (2/3) ... [2023-08-30 04:32:45,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3906f2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:32:45, skipping insertion in model container [2023-08-30 04:32:45,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:32:45" (3/3) ... [2023-08-30 04:32:45,016 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-30 04:32:45,031 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 04:32:45,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 04:32:45,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 04:32:45,072 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 04:32:45,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 163 flow [2023-08-30 04:32:45,164 INFO L130 PetriNetUnfolder]: 2/78 cut-off events. [2023-08-30 04:32:45,165 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:32:45,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2023-08-30 04:32:45,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 79 transitions, 163 flow [2023-08-30 04:32:45,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 74 transitions, 151 flow [2023-08-30 04:32:45,179 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 04:32:45,193 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 74 transitions, 151 flow [2023-08-30 04:32:45,197 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 74 transitions, 151 flow [2023-08-30 04:32:45,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 151 flow [2023-08-30 04:32:45,226 INFO L130 PetriNetUnfolder]: 2/74 cut-off events. [2023-08-30 04:32:45,227 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:32:45,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 2/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-08-30 04:32:45,229 INFO L119 LiptonReduction]: Number of co-enabled transitions 540 [2023-08-30 04:32:48,003 INFO L134 LiptonReduction]: Checked pairs total: 1726 [2023-08-30 04:32:48,003 INFO L136 LiptonReduction]: Total number of compositions: 71 [2023-08-30 04:32:48,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 04:32:48,022 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;@5345ff45, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 04:32:48,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 04:32:48,023 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 04:32:48,023 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:32:48,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:32:48,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 04:32:48,025 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:32:48,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:32:48,029 INFO L85 PathProgramCache]: Analyzing trace with hash 278, now seen corresponding path program 1 times [2023-08-30 04:32:48,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:32:48,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102462650] [2023-08-30 04:32:48,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:32:48,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:32:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:32:48,184 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 04:32:48,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:32:48,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102462650] [2023-08-30 04:32:48,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102462650] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:32:48,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:32:48,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 04:32:48,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604824878] [2023-08-30 04:32:48,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:32:48,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 04:32:48,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:32:48,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 04:32:48,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 04:32:48,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 150 [2023-08-30 04:32:48,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 04:32:48,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:32:48,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 150 [2023-08-30 04:32:48,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:32:48,270 INFO L130 PetriNetUnfolder]: 28/75 cut-off events. [2023-08-30 04:32:48,270 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:32:48,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 75 events. 28/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 267 event pairs, 24 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 132. Up to 62 conditions per place. [2023-08-30 04:32:48,273 INFO L137 encePairwiseOnDemand]: 148/150 looper letters, 13 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-08-30 04:32:48,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 65 flow [2023-08-30 04:32:48,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 04:32:48,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 04:32:48,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 167 transitions. [2023-08-30 04:32:48,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5566666666666666 [2023-08-30 04:32:48,288 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 167 transitions. [2023-08-30 04:32:48,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 167 transitions. [2023-08-30 04:32:48,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:32:48,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 167 transitions. [2023-08-30 04:32:48,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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 04:32:48,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 04:32:48,305 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 04:32:48,307 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 2 states and 167 transitions. [2023-08-30 04:32:48,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 65 flow [2023-08-30 04:32:48,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:32:48,312 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 38 flow [2023-08-30 04:32:48,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2023-08-30 04:32:48,317 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -2 predicate places. [2023-08-30 04:32:48,317 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 38 flow [2023-08-30 04:32:48,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 04:32:48,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:32:48,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 04:32:48,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 04:32:48,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:32:48,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:32:48,327 INFO L85 PathProgramCache]: Analyzing trace with hash -402456689, now seen corresponding path program 1 times [2023-08-30 04:32:48,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:32:48,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840086172] [2023-08-30 04:32:48,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:32:48,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:32:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 04:32:48,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 04:32:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 04:32:48,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 04:32:48,412 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 04:32:48,414 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2023-08-30 04:32:48,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-08-30 04:32:48,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-08-30 04:32:48,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-08-30 04:32:48,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 04:32:48,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 04:32:48,416 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 04:32:48,420 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 04:32:48,421 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 04:32:48,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:32:48 BasicIcfg [2023-08-30 04:32:48,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 04:32:48,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 04:32:48,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 04:32:48,439 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 04:32:48,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:32:45" (3/4) ... [2023-08-30 04:32:48,441 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 04:32:48,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 04:32:48,442 INFO L158 Benchmark]: Toolchain (without parser) took 4456.59ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 71.7MB in the beginning and 67.5MB in the end (delta: 4.2MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-08-30 04:32:48,443 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:32:48,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.28ms. Allocated memory is still 90.2MB. Free memory was 71.4MB in the beginning and 52.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 04:32:48,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.26ms. Allocated memory is still 90.2MB. Free memory was 52.5MB in the beginning and 50.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 04:32:48,444 INFO L158 Benchmark]: Boogie Preprocessor took 23.40ms. Allocated memory is still 90.2MB. Free memory was 50.5MB in the beginning and 49.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:32:48,444 INFO L158 Benchmark]: RCFGBuilder took 446.09ms. Allocated memory is still 90.2MB. Free memory was 48.9MB in the beginning and 59.1MB in the end (delta: -10.1MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2023-08-30 04:32:48,445 INFO L158 Benchmark]: TraceAbstraction took 3427.14ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.2MB in the beginning and 67.5MB in the end (delta: -9.2MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-08-30 04:32:48,445 INFO L158 Benchmark]: Witness Printer took 3.36ms. Allocated memory is still 109.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:32:48,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.28ms. Allocated memory is still 90.2MB. Free memory was 71.4MB in the beginning and 52.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.26ms. Allocated memory is still 90.2MB. Free memory was 52.5MB in the beginning and 50.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.40ms. Allocated memory is still 90.2MB. Free memory was 50.5MB in the beginning and 49.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 446.09ms. Allocated memory is still 90.2MB. Free memory was 48.9MB in the beginning and 59.1MB in the end (delta: -10.1MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3427.14ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.2MB in the beginning and 67.5MB in the end (delta: -9.2MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Witness Printer took 3.36ms. Allocated memory is still 109.1MB. Free memory is still 67.5MB. 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: 2.8s, 76 PlacesBefore, 23 PlacesAfterwards, 74 TransitionsBefore, 20 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 71 TotalNumberOfCompositions, 1726 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 660, independent: 487, independent conditional: 0, independent unconditional: 487, dependent: 173, dependent conditional: 0, dependent unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 284, independent: 254, independent conditional: 0, independent unconditional: 254, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 660, independent: 233, independent conditional: 0, independent unconditional: 233, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 284, unknown conditional: 0, unknown unconditional: 284] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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 g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=42] - 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: 693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 90 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, 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, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 13 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=43occurred 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, 7 NumberOfCodeBlocks, 7 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 04:32:48,464 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --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 04:32:50,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 04:32:50,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 04:32:50,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 04:32:50,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 04:32:50,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 04:32:50,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 04:32:50,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 04:32:50,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 04:32:50,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 04:32:50,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 04:32:50,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 04:32:50,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 04:32:50,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 04:32:50,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 04:32:50,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 04:32:50,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 04:32:50,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 04:32:50,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 04:32:50,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 04:32:50,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 04:32:50,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 04:32:50,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 04:32:50,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 04:32:50,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 04:32:50,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 04:32:50,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 04:32:50,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 04:32:50,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 04:32:50,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 04:32:50,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 04:32:50,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 04:32:50,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 04:32:50,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 04:32:50,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 04:32:50,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 04:32:50,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 04:32:50,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 04:32:50,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 04:32:50,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 04:32:50,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 04:32:50,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 04:32:50,497 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 04:32:50,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 04:32:50,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 04:32:50,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 04:32:50,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 04:32:50,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 04:32:50,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 04:32:50,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 04:32:50,501 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 04:32:50,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 04:32:50,502 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 04:32:50,502 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 04:32:50,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 04:32:50,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 04:32:50,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 04:32:50,503 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 04:32:50,503 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 04:32:50,503 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 04:32:50,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 04:32:50,503 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 04:32:50,504 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 04:32:50,504 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 04:32:50,504 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 04:32:50,504 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 04:32:50,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 04:32:50,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 04:32:50,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 04:32:50,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:32:50,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 04:32:50,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 04:32:50,506 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 04:32:50,506 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 04:32:50,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 04:32:50,506 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 04:32:50,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 04:32:50,507 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 04:32:50,507 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 04:32:50,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 04:32:50,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 04:32:50,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 04:32:50,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 04:32:50,806 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 04:32:50,807 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 04:32:50,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-30 04:32:51,937 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 04:32:52,211 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 04:32:52,212 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-30 04:32:52,231 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a2d8d2e3/774fbebf06be4857819704f9083cf7f7/FLAGc021700a8 [2023-08-30 04:32:52,243 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a2d8d2e3/774fbebf06be4857819704f9083cf7f7 [2023-08-30 04:32:52,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 04:32:52,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 04:32:52,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 04:32:52,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 04:32:52,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 04:32:52,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4132dc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52, skipping insertion in model container [2023-08-30 04:32:52,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 04:32:52,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 04:32:52,479 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-08-30 04:32:52,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:32:52,655 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 04:32:52,670 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-08-30 04:32:52,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:32:52,797 INFO L208 MainTranslator]: Completed translation [2023-08-30 04:32:52,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52 WrapperNode [2023-08-30 04:32:52,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 04:32:52,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 04:32:52,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 04:32:52,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 04:32:52,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,848 INFO L138 Inliner]: procedures = 167, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-08-30 04:32:52,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 04:32:52,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 04:32:52,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 04:32:52,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 04:32:52,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,870 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 04:32:52,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 04:32:52,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 04:32:52,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 04:32:52,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (1/1) ... [2023-08-30 04:32:52,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:32:52,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 04:32:52,906 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 04:32:52,932 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 04:32:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 04:32:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 04:32:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 04:32:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 04:32:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 04:32:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 04:32:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 04:32:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 04:32:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 04:32:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 04:32:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 04:32:52,953 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 04:32:53,096 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 04:32:53,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 04:32:53,372 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 04:32:53,377 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 04:32:53,379 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 04:32:53,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:32:53 BoogieIcfgContainer [2023-08-30 04:32:53,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 04:32:53,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 04:32:53,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 04:32:53,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 04:32:53,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:32:52" (1/3) ... [2023-08-30 04:32:53,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3b2b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:32:53, skipping insertion in model container [2023-08-30 04:32:53,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:32:52" (2/3) ... [2023-08-30 04:32:53,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3b2b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:32:53, skipping insertion in model container [2023-08-30 04:32:53,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:32:53" (3/3) ... [2023-08-30 04:32:53,390 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-30 04:32:53,405 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 04:32:53,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 04:32:53,406 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 04:32:53,484 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 04:32:53,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 163 flow [2023-08-30 04:32:53,566 INFO L130 PetriNetUnfolder]: 2/78 cut-off events. [2023-08-30 04:32:53,566 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:32:53,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2023-08-30 04:32:53,572 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 79 transitions, 163 flow [2023-08-30 04:32:53,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 74 transitions, 151 flow [2023-08-30 04:32:53,581 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 04:32:53,597 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 74 transitions, 151 flow [2023-08-30 04:32:53,601 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 74 transitions, 151 flow [2023-08-30 04:32:53,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 151 flow [2023-08-30 04:32:53,636 INFO L130 PetriNetUnfolder]: 2/74 cut-off events. [2023-08-30 04:32:53,636 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:32:53,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 2/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-08-30 04:32:53,638 INFO L119 LiptonReduction]: Number of co-enabled transitions 540 [2023-08-30 04:32:57,828 INFO L134 LiptonReduction]: Checked pairs total: 1558 [2023-08-30 04:32:57,829 INFO L136 LiptonReduction]: Total number of compositions: 71 [2023-08-30 04:32:57,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 04:32:57,847 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;@397c2f79, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 04:32:57,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 04:32:57,849 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 04:32:57,849 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:32:57,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:32:57,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 04:32:57,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:32:57,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:32:57,854 INFO L85 PathProgramCache]: Analyzing trace with hash 278, now seen corresponding path program 1 times [2023-08-30 04:32:57,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 04:32:57,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592729018] [2023-08-30 04:32:57,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:32:57,865 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 04:32:57,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 04:32:57,877 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 04:32:57,894 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 04:32:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:32:57,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-30 04:32:57,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 04:32:57,946 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 04:32:57,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 04:32:57,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 04:32:57,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592729018] [2023-08-30 04:32:57,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592729018] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:32:57,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:32:57,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 04:32:57,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926078725] [2023-08-30 04:32:57,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:32:57,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 04:32:57,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 04:32:57,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 04:32:57,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 04:32:57,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 150 [2023-08-30 04:32:57,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 04:32:57,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:32:57,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 150 [2023-08-30 04:32:57,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:32:58,052 INFO L130 PetriNetUnfolder]: 28/75 cut-off events. [2023-08-30 04:32:58,052 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:32:58,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 75 events. 28/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 267 event pairs, 24 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 132. Up to 62 conditions per place. [2023-08-30 04:32:58,054 INFO L137 encePairwiseOnDemand]: 148/150 looper letters, 13 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-08-30 04:32:58,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 65 flow [2023-08-30 04:32:58,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 04:32:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 04:32:58,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 167 transitions. [2023-08-30 04:32:58,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5566666666666666 [2023-08-30 04:32:58,081 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 167 transitions. [2023-08-30 04:32:58,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 167 transitions. [2023-08-30 04:32:58,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:32:58,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 167 transitions. [2023-08-30 04:32:58,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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 04:32:58,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 04:32:58,092 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 04:32:58,094 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 2 states and 167 transitions. [2023-08-30 04:32:58,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 65 flow [2023-08-30 04:32:58,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:32:58,114 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 38 flow [2023-08-30 04:32:58,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2023-08-30 04:32:58,119 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -2 predicate places. [2023-08-30 04:32:58,119 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 38 flow [2023-08-30 04:32:58,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 04:32:58,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:32:58,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 04:32:58,147 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 04:32:58,321 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 04:32:58,321 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:32:58,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:32:58,322 INFO L85 PathProgramCache]: Analyzing trace with hash -431056978, now seen corresponding path program 1 times [2023-08-30 04:32:58,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 04:32:58,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599730913] [2023-08-30 04:32:58,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:32:58,323 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 04:32:58,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 04:32:58,324 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 04:32:58,328 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 04:32:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 04:32:58,390 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 04:32:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 04:32:58,431 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-08-30 04:32:58,431 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 04:32:58,433 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2023-08-30 04:32:58,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-08-30 04:32:58,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-08-30 04:32:58,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-08-30 04:32:58,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 04:32:58,454 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 04:32:58,651 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 04:32:58,652 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 04:32:58,655 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 04:32:58,656 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 04:32:58,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:32:58 BasicIcfg [2023-08-30 04:32:58,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 04:32:58,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 04:32:58,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 04:32:58,681 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 04:32:58,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:32:53" (3/4) ... [2023-08-30 04:32:58,684 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 04:32:58,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 04:32:58,686 INFO L158 Benchmark]: Toolchain (without parser) took 6438.04ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 45.5MB in the beginning and 55.3MB in the end (delta: -9.8MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2023-08-30 04:32:58,686 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory was 32.2MB in the beginning and 32.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:32:58,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.19ms. Allocated memory is still 69.2MB. Free memory was 45.3MB in the beginning and 42.1MB in the end (delta: 3.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-30 04:32:58,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.61ms. Allocated memory is still 69.2MB. Free memory was 42.1MB in the beginning and 40.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 04:32:58,691 INFO L158 Benchmark]: Boogie Preprocessor took 24.84ms. Allocated memory is still 69.2MB. Free memory was 40.0MB in the beginning and 38.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 04:32:58,692 INFO L158 Benchmark]: RCFGBuilder took 506.93ms. Allocated memory is still 69.2MB. Free memory was 38.4MB in the beginning and 41.6MB in the end (delta: -3.2MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-08-30 04:32:58,692 INFO L158 Benchmark]: TraceAbstraction took 5296.09ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 40.9MB in the beginning and 55.9MB in the end (delta: -15.0MB). Peak memory consumption was 21.7kB. Max. memory is 16.1GB. [2023-08-30 04:32:58,693 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 83.9MB. Free memory was 55.9MB in the beginning and 55.3MB in the end (delta: 636.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:32:58,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory was 32.2MB in the beginning and 32.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.19ms. Allocated memory is still 69.2MB. Free memory was 45.3MB in the beginning and 42.1MB in the end (delta: 3.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.61ms. Allocated memory is still 69.2MB. Free memory was 42.1MB in the beginning and 40.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.84ms. Allocated memory is still 69.2MB. Free memory was 40.0MB in the beginning and 38.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.93ms. Allocated memory is still 69.2MB. Free memory was 38.4MB in the beginning and 41.6MB in the end (delta: -3.2MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5296.09ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 40.9MB in the beginning and 55.9MB in the end (delta: -15.0MB). Peak memory consumption was 21.7kB. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 83.9MB. Free memory was 55.9MB in the beginning and 55.3MB in the end (delta: 636.6kB). 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: 4.2s, 76 PlacesBefore, 23 PlacesAfterwards, 74 TransitionsBefore, 20 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 71 TotalNumberOfCompositions, 1558 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 619, independent: 470, independent conditional: 0, independent unconditional: 470, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 284, independent: 254, independent conditional: 0, independent unconditional: 254, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 284, unknown conditional: 0, unknown unconditional: 284] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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 g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={7:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=42] - 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: 693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 90 locations, 5 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: 5.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, 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, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 13 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=43occurred 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, 7 NumberOfCodeBlocks, 7 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 04:32:58,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample