./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/10-synch_01-thread_unique.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/10-synch_01-thread_unique.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 1f1f1c8f9ab1c230a124cee5d642a3f2063dd1bf51b20bdb3c19b17194d93f67 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:22:32,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:22:32,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:22:32,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:22:32,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:22:32,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:22:32,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:22:32,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:22:32,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:22:32,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:22:32,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:22:32,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:22:32,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:22:32,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:22:32,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:22:32,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:22:32,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:22:32,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:22:32,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:22:32,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:22:32,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:22:32,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:22:32,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:22:32,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:22:32,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:22:32,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:22:32,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:22:32,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:22:32,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:22:32,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:22:32,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:22:32,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:22:32,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:22:32,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:22:32,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:22:32,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:22:32,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:22:32,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:22:32,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:22:32,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:22:32,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:22:32,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 00:22:32,964 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:22:32,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:22:32,965 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:22:32,965 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:22:32,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:22:32,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:22:32,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:22:32,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:22:32,967 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:22:32,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:22:32,968 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:22:32,968 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:22:32,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:22:32,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:22:32,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:22:32,969 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:22:32,969 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:22:32,969 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:22:32,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:22:32,970 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:22:32,970 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:22:32,970 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:22:32,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:22:32,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:22:32,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:22:32,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:22:32,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:22:32,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:22:32,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 00:22:32,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 00:22:32,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:22:32,973 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:22:32,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:22:32,973 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:22:32,973 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f1f1c8f9ab1c230a124cee5d642a3f2063dd1bf51b20bdb3c19b17194d93f67 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:22:33,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:22:33,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:22:33,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:22:33,301 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:22:33,302 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:22:33,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/10-synch_01-thread_unique.i [2023-09-01 00:22:34,622 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:22:34,884 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:22:34,885 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/10-synch_01-thread_unique.i [2023-09-01 00:22:34,897 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982fc36b4/5917c5f7055642acaef08f3226af6104/FLAG2d6266b3d [2023-09-01 00:22:34,919 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982fc36b4/5917c5f7055642acaef08f3226af6104 [2023-09-01 00:22:34,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:22:34,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:22:34,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:22:34,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:22:34,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:22:34,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:22:34" (1/1) ... [2023-09-01 00:22:34,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2a3c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:34, skipping insertion in model container [2023-09-01 00:22:34,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:22:34" (1/1) ... [2023-09-01 00:22:34,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:22:34,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:22:35,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:22:35,343 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:22:35,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:22:35,455 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:22:35,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35 WrapperNode [2023-09-01 00:22:35,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:22:35,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:22:35,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:22:35,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:22:35,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,515 INFO L138 Inliner]: procedures = 259, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-09-01 00:22:35,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:22:35,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:22:35,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:22:35,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:22:35,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,547 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:22:35,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:22:35,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:22:35,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:22:35,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (1/1) ... [2023-09-01 00:22:35,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:22:35,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:22:35,579 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) [2023-09-01 00:22:35,581 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 [2023-09-01 00:22:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:22:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:22:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 00:22:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 00:22:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:22:35,610 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:22:35,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:22:35,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:22:35,612 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:22:35,731 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:22:35,733 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:22:35,830 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:22:35,834 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:22:35,835 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:22:35,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:22:35 BoogieIcfgContainer [2023-09-01 00:22:35,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:22:35,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:22:35,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:22:35,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:22:35,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:22:34" (1/3) ... [2023-09-01 00:22:35,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749a45ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:22:35, skipping insertion in model container [2023-09-01 00:22:35,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:22:35" (2/3) ... [2023-09-01 00:22:35,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749a45ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:22:35, skipping insertion in model container [2023-09-01 00:22:35,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:22:35" (3/3) ... [2023-09-01 00:22:35,844 INFO L112 eAbstractionObserver]: Analyzing ICFG 10-synch_01-thread_unique.i [2023-09-01 00:22:35,859 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:22:35,859 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-09-01 00:22:35,860 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:22:35,894 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 00:22:35,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 76 flow [2023-09-01 00:22:35,945 INFO L130 PetriNetUnfolder]: 0/33 cut-off events. [2023-09-01 00:22:35,945 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:22:35,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 33 events. 0/33 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-09-01 00:22:35,948 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 76 flow [2023-09-01 00:22:35,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 29 transitions, 64 flow [2023-09-01 00:22:35,953 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:22:35,962 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 29 transitions, 64 flow [2023-09-01 00:22:35,964 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 29 transitions, 64 flow [2023-09-01 00:22:35,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 64 flow [2023-09-01 00:22:35,973 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2023-09-01 00:22:35,973 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:22:35,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 29 events. 0/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-09-01 00:22:35,974 INFO L119 LiptonReduction]: Number of co-enabled transitions 40 [2023-09-01 00:22:36,806 INFO L134 LiptonReduction]: Checked pairs total: 53 [2023-09-01 00:22:36,806 INFO L136 LiptonReduction]: Total number of compositions: 29 [2023-09-01 00:22:36,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:22:36,834 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;@3d322798, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:22:36,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-09-01 00:22:36,836 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-09-01 00:22:36,837 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:22:36,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:22:36,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:22:36,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-09-01 00:22:36,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:22:36,841 INFO L85 PathProgramCache]: Analyzing trace with hash 132, now seen corresponding path program 1 times [2023-09-01 00:22:36,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:22:36,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077905208] [2023-09-01 00:22:36,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:22:36,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:22:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:22:36,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:22:36,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:22:36,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077905208] [2023-09-01 00:22:36,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077905208] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:22:36,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:22:36,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:22:36,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042895482] [2023-09-01 00:22:36,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:22:36,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:22:37,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:22:37,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:22:37,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:22:37,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 63 [2023-09-01 00:22:37,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 26 flow. Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 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) [2023-09-01 00:22:37,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:22:37,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 63 [2023-09-01 00:22:37,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:22:37,055 INFO L130 PetriNetUnfolder]: 3/14 cut-off events. [2023-09-01 00:22:37,055 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:22:37,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 14 events. 3/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 19 event pairs, 3 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 20. Up to 15 conditions per place. [2023-09-01 00:22:37,058 INFO L137 encePairwiseOnDemand]: 61/63 looper letters, 8 selfloop transitions, 0 changer transitions 0/8 dead transitions. [2023-09-01 00:22:37,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 38 flow [2023-09-01 00:22:37,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:22:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:22:37,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 74 transitions. [2023-09-01 00:22:37,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2023-09-01 00:22:37,070 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 74 transitions. [2023-09-01 00:22:37,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 74 transitions. [2023-09-01 00:22:37,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:22:37,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 74 transitions. [2023-09-01 00:22:37,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 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) [2023-09-01 00:22:37,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-09-01 00:22:37,082 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-09-01 00:22:37,084 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 74 transitions. [2023-09-01 00:22:37,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 38 flow [2023-09-01 00:22:37,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:22:37,089 INFO L231 Difference]: Finished difference. Result has 11 places, 8 transitions, 18 flow [2023-09-01 00:22:37,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=18, PETRI_PLACES=11, PETRI_TRANSITIONS=8} [2023-09-01 00:22:37,095 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-09-01 00:22:37,095 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 8 transitions, 18 flow [2023-09-01 00:22:37,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 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) [2023-09-01 00:22:37,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:22:37,096 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 00:22:37,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 00:22:37,097 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-09-01 00:22:37,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:22:37,105 INFO L85 PathProgramCache]: Analyzing trace with hash 131126, now seen corresponding path program 1 times [2023-09-01 00:22:37,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:22:37,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601275169] [2023-09-01 00:22:37,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:22:37,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:22:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:22:37,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:22:37,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:22:37,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601275169] [2023-09-01 00:22:37,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601275169] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:22:37,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:22:37,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:22:37,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417477728] [2023-09-01 00:22:37,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:22:37,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:22:37,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:22:37,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:22:37,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:22:37,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 63 [2023-09-01 00:22:37,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 8 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2023-09-01 00:22:37,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:22:37,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 63 [2023-09-01 00:22:37,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:22:37,302 INFO L130 PetriNetUnfolder]: 2/11 cut-off events. [2023-09-01 00:22:37,302 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:22:37,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 10 event pairs, 2 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 23. Up to 10 conditions per place. [2023-09-01 00:22:37,303 INFO L137 encePairwiseOnDemand]: 60/63 looper letters, 5 selfloop transitions, 2 changer transitions 0/7 dead transitions. [2023-09-01 00:22:37,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 30 flow [2023-09-01 00:22:37,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:22:37,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:22:37,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2023-09-01 00:22:37,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42328042328042326 [2023-09-01 00:22:37,305 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 80 transitions. [2023-09-01 00:22:37,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 80 transitions. [2023-09-01 00:22:37,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:22:37,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 80 transitions. [2023-09-01 00:22:37,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2023-09-01 00:22:37,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2023-09-01 00:22:37,307 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2023-09-01 00:22:37,308 INFO L175 Difference]: Start difference. First operand has 11 places, 8 transitions, 18 flow. Second operand 3 states and 80 transitions. [2023-09-01 00:22:37,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 30 flow [2023-09-01 00:22:37,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 00:22:37,309 INFO L231 Difference]: Finished difference. Result has 12 places, 7 transitions, 20 flow [2023-09-01 00:22:37,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20, PETRI_PLACES=12, PETRI_TRANSITIONS=7} [2023-09-01 00:22:37,310 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -2 predicate places. [2023-09-01 00:22:37,310 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 7 transitions, 20 flow [2023-09-01 00:22:37,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2023-09-01 00:22:37,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:22:37,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 00:22:37,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 00:22:37,311 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-09-01 00:22:37,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:22:37,312 INFO L85 PathProgramCache]: Analyzing trace with hash 131128, now seen corresponding path program 1 times [2023-09-01 00:22:37,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:22:37,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38805699] [2023-09-01 00:22:37,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:22:37,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:22:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:22:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:22:37,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:22:37,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38805699] [2023-09-01 00:22:37,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38805699] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:22:37,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:22:37,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:22:37,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929510163] [2023-09-01 00:22:37,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:22:37,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:22:37,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:22:37,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:22:37,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:22:37,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 63 [2023-09-01 00:22:37,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 7 transitions, 20 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-09-01 00:22:37,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:22:37,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 63 [2023-09-01 00:22:37,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:22:37,455 INFO L130 PetriNetUnfolder]: 1/8 cut-off events. [2023-09-01 00:22:37,455 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:22:37,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 8 events. 1/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 19. Up to 7 conditions per place. [2023-09-01 00:22:37,456 INFO L137 encePairwiseOnDemand]: 60/63 looper letters, 4 selfloop transitions, 2 changer transitions 0/6 dead transitions. [2023-09-01 00:22:37,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 6 transitions, 30 flow [2023-09-01 00:22:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:22:37,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:22:37,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2023-09-01 00:22:37,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4656084656084656 [2023-09-01 00:22:37,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 88 transitions. [2023-09-01 00:22:37,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 88 transitions. [2023-09-01 00:22:37,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:22:37,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 88 transitions. [2023-09-01 00:22:37,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2023-09-01 00:22:37,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2023-09-01 00:22:37,464 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2023-09-01 00:22:37,464 INFO L175 Difference]: Start difference. First operand has 12 places, 7 transitions, 20 flow. Second operand 3 states and 88 transitions. [2023-09-01 00:22:37,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 6 transitions, 30 flow [2023-09-01 00:22:37,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:22:37,465 INFO L231 Difference]: Finished difference. Result has 11 places, 6 transitions, 18 flow [2023-09-01 00:22:37,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=18, PETRI_PLACES=11, PETRI_TRANSITIONS=6} [2023-09-01 00:22:37,467 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-09-01 00:22:37,467 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 6 transitions, 18 flow [2023-09-01 00:22:37,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-09-01 00:22:37,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:22:37,467 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 00:22:37,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 00:22:37,471 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-09-01 00:22:37,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:22:37,472 INFO L85 PathProgramCache]: Analyzing trace with hash -388235628, now seen corresponding path program 1 times [2023-09-01 00:22:37,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:22:37,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140267907] [2023-09-01 00:22:37,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:22:37,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:22:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:22:37,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:22:37,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:22:37,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140267907] [2023-09-01 00:22:37,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140267907] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:22:37,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:22:37,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:22:37,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476401135] [2023-09-01 00:22:37,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:22:37,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:22:37,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:22:37,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:22:37,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:22:37,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 63 [2023-09-01 00:22:37,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 6 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2023-09-01 00:22:37,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:22:37,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 63 [2023-09-01 00:22:37,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:22:37,672 INFO L130 PetriNetUnfolder]: 1/7 cut-off events. [2023-09-01 00:22:37,673 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:22:37,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 7 events. 1/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 16. Up to 7 conditions per place. [2023-09-01 00:22:37,673 INFO L137 encePairwiseOnDemand]: 61/63 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2023-09-01 00:22:37,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 5 transitions, 24 flow [2023-09-01 00:22:37,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:22:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:22:37,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2023-09-01 00:22:37,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-09-01 00:22:37,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 90 transitions. [2023-09-01 00:22:37,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 90 transitions. [2023-09-01 00:22:37,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:22:37,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 90 transitions. [2023-09-01 00:22:37,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2023-09-01 00:22:37,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2023-09-01 00:22:37,679 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2023-09-01 00:22:37,679 INFO L175 Difference]: Start difference. First operand has 11 places, 6 transitions, 18 flow. Second operand 3 states and 90 transitions. [2023-09-01 00:22:37,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 5 transitions, 24 flow [2023-09-01 00:22:37,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 5 transitions, 23 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 00:22:37,680 INFO L231 Difference]: Finished difference. Result has 11 places, 0 transitions, 0 flow [2023-09-01 00:22:37,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=11, PETRI_TRANSITIONS=0} [2023-09-01 00:22:37,681 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-09-01 00:22:37,681 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 0 transitions, 0 flow [2023-09-01 00:22:37,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2023-09-01 00:22:37,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2023-09-01 00:22:37,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2023-09-01 00:22:37,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2023-09-01 00:22:37,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2023-09-01 00:22:37,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2023-09-01 00:22:37,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2023-09-01 00:22:37,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 00:22:37,685 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-01 00:22:37,688 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:22:37,688 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:22:37,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:22:37 BasicIcfg [2023-09-01 00:22:37,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:22:37,691 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:22:37,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:22:37,692 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:22:37,692 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:22:35" (3/4) ... [2023-09-01 00:22:37,694 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 00:22:37,700 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 00:22:37,721 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-09-01 00:22:37,746 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 00:22:37,746 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 00:22:37,778 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 00:22:37,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:22:37,779 INFO L158 Benchmark]: Toolchain (without parser) took 2856.61ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 75.3MB in the beginning and 93.0MB in the end (delta: -17.7MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2023-09-01 00:22:37,780 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:22:37,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.80ms. Allocated memory is still 96.5MB. Free memory was 75.0MB in the beginning and 73.5MB in the end (delta: 1.5MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2023-09-01 00:22:37,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.79ms. Allocated memory is still 96.5MB. Free memory was 73.2MB in the beginning and 71.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:22:37,780 INFO L158 Benchmark]: Boogie Preprocessor took 36.86ms. Allocated memory is still 96.5MB. Free memory was 71.3MB in the beginning and 70.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:22:37,781 INFO L158 Benchmark]: RCFGBuilder took 282.93ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 59.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 00:22:37,781 INFO L158 Benchmark]: TraceAbstraction took 1853.11ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 58.5MB in the beginning and 47.3MB in the end (delta: 11.2MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2023-09-01 00:22:37,781 INFO L158 Benchmark]: Witness Printer took 87.40ms. Allocated memory is still 117.4MB. Free memory was 47.3MB in the beginning and 93.0MB in the end (delta: -45.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:22:37,783 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.80ms. Allocated memory is still 96.5MB. Free memory was 75.0MB in the beginning and 73.5MB in the end (delta: 1.5MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.79ms. Allocated memory is still 96.5MB. Free memory was 73.2MB in the beginning and 71.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.86ms. Allocated memory is still 96.5MB. Free memory was 71.3MB in the beginning and 70.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 282.93ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 59.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1853.11ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 58.5MB in the beginning and 47.3MB in the end (delta: 11.2MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * Witness Printer took 87.40ms. Allocated memory is still 117.4MB. Free memory was 47.3MB in the beginning and 93.0MB in the end (delta: -45.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8s, 33 PlacesBefore, 14 PlacesAfterwards, 29 TransitionsBefore, 10 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 4 FixpointIterations, 20 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 29 TotalNumberOfCompositions, 53 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 26, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 53, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 26, unknown conditional: 0, unknown unconditional: 26] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 922]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 41 locations, 6 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: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 15 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0.4s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 00:22:37,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE