./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.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 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 --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 04:00:39,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 04:00:39,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 04:00:39,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 04:00:39,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 04:00:39,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 04:00:39,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 04:00:39,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 04:00:39,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 04:00:39,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 04:00:39,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 04:00:39,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 04:00:39,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 04:00:39,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 04:00:39,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 04:00:39,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 04:00:39,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 04:00:39,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 04:00:39,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 04:00:39,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 04:00:39,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 04:00:39,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 04:00:39,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 04:00:39,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 04:00:39,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 04:00:39,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 04:00:39,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 04:00:39,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 04:00:39,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 04:00:39,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 04:00:39,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 04:00:39,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 04:00:39,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 04:00:39,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 04:00:39,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 04:00:39,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 04:00:39,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 04:00:39,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 04:00:39,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 04:00:39,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 04:00:39,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 04:00:39,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 04:00:39,340 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 04:00:39,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 04:00:39,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 04:00:39,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 04:00:39,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 04:00:39,343 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 04:00:39,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 04:00:39,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 04:00:39,344 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 04:00:39,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 04:00:39,345 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 04:00:39,345 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 04:00:39,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 04:00:39,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 04:00:39,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 04:00:39,346 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 04:00:39,346 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 04:00:39,346 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 04:00:39,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 04:00:39,347 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 04:00:39,347 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 04:00:39,347 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 04:00:39,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 04:00:39,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 04:00:39,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 04:00:39,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:00:39,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 04:00:39,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 04:00:39,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 04:00:39,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 04:00:39,349 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 04:00:39,349 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 04:00:39,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 04:00:39,349 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 04:00:39,349 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 04:00:39,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 04:00:39,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 04:00:39,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 04:00:39,679 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 04:00:39,680 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 04:00:39,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2023-08-30 04:00:40,876 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 04:00:41,129 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 04:00:41,130 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2023-08-30 04:00:41,152 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e95e4d80/66b3a8fd0f9a4115b2ea8d54c1742ba6/FLAG25af9207c [2023-08-30 04:00:41,170 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e95e4d80/66b3a8fd0f9a4115b2ea8d54c1742ba6 [2023-08-30 04:00:41,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 04:00:41,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 04:00:41,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 04:00:41,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 04:00:41,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 04:00:41,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19bae009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41, skipping insertion in model container [2023-08-30 04:00:41,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 04:00:41,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 04:00:41,373 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2023-08-30 04:00:41,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:00:41,546 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 04:00:41,561 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2023-08-30 04:00:41,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:00:41,673 INFO L208 MainTranslator]: Completed translation [2023-08-30 04:00:41,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41 WrapperNode [2023-08-30 04:00:41,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 04:00:41,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 04:00:41,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 04:00:41,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 04:00:41,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,750 INFO L138 Inliner]: procedures = 162, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2023-08-30 04:00:41,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 04:00:41,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 04:00:41,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 04:00:41,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 04:00:41,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,787 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 04:00:41,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 04:00:41,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 04:00:41,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 04:00:41,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (1/1) ... [2023-08-30 04:00:41,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:00:41,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 04:00:41,838 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 04:00:41,864 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 04:00:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 04:00:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 04:00:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 04:00:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 04:00:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 04:00:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 04:00:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 04:00:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 04:00:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 04:00:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 04:00:41,882 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 04:00:41,999 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 04:00:42,000 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 04:00:42,208 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 04:00:42,215 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 04:00:42,215 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 04:00:42,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:42 BoogieIcfgContainer [2023-08-30 04:00:42,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 04:00:42,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 04:00:42,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 04:00:42,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 04:00:42,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:00:41" (1/3) ... [2023-08-30 04:00:42,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532e5e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:00:42, skipping insertion in model container [2023-08-30 04:00:42,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:41" (2/3) ... [2023-08-30 04:00:42,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532e5e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:00:42, skipping insertion in model container [2023-08-30 04:00:42,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:42" (3/3) ... [2023-08-30 04:00:42,239 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2023-08-30 04:00:42,257 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 04:00:42,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 04:00:42,257 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 04:00:42,338 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 04:00:42,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 163 flow [2023-08-30 04:00:42,438 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2023-08-30 04:00:42,439 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:42,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-08-30 04:00:42,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 163 flow [2023-08-30 04:00:42,451 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 74 transitions, 151 flow [2023-08-30 04:00:42,455 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 04:00:42,473 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 74 transitions, 151 flow [2023-08-30 04:00:42,477 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 74 transitions, 151 flow [2023-08-30 04:00:42,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 151 flow [2023-08-30 04:00:42,511 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2023-08-30 04:00:42,511 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:42,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 1/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-08-30 04:00:42,513 INFO L119 LiptonReduction]: Number of co-enabled transitions 572 [2023-08-30 04:00:46,070 INFO L134 LiptonReduction]: Checked pairs total: 2032 [2023-08-30 04:00:46,071 INFO L136 LiptonReduction]: Total number of compositions: 68 [2023-08-30 04:00:46,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 04:00:46,088 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;@50b23c3f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 04:00:46,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 04:00:46,090 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 04:00:46,090 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:46,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:46,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 04:00:46,091 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 04:00:46,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:46,095 INFO L85 PathProgramCache]: Analyzing trace with hash 274, now seen corresponding path program 1 times [2023-08-30 04:00:46,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:46,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430711707] [2023-08-30 04:00:46,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:46,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:46,184 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 04:00:46,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:46,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430711707] [2023-08-30 04:00:46,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430711707] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:46,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:46,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 04:00:46,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262404239] [2023-08-30 04:00:46,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:46,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 04:00:46,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:46,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 04:00:46,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 04:00:46,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2023-08-30 04:00:46,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 41 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 04:00:46,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:46,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2023-08-30 04:00:46,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:46,284 INFO L130 PetriNetUnfolder]: 24/74 cut-off events. [2023-08-30 04:00:46,285 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:46,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 74 events. 24/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 223 event pairs, 24 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 130. Up to 61 conditions per place. [2023-08-30 04:00:46,287 INFO L137 encePairwiseOnDemand]: 144/147 looper letters, 12 selfloop transitions, 0 changer transitions 0/16 dead transitions. [2023-08-30 04:00:46,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 59 flow [2023-08-30 04:00:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 04:00:46,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 04:00:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 167 transitions. [2023-08-30 04:00:46,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5680272108843537 [2023-08-30 04:00:46,301 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 167 transitions. [2023-08-30 04:00:46,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 167 transitions. [2023-08-30 04:00:46,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:46,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 167 transitions. [2023-08-30 04:00:46,311 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 04:00:46,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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 04:00:46,317 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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 04:00:46,319 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 41 flow. Second operand 2 states and 167 transitions. [2023-08-30 04:00:46,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 59 flow [2023-08-30 04:00:46,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:00:46,323 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 34 flow [2023-08-30 04:00:46,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=34, PETRI_PLACES=20, PETRI_TRANSITIONS=16} [2023-08-30 04:00:46,328 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2023-08-30 04:00:46,328 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 34 flow [2023-08-30 04:00:46,329 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 04:00:46,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:46,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:46,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 04:00:46,330 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 04:00:46,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:46,337 INFO L85 PathProgramCache]: Analyzing trace with hash 257093212, now seen corresponding path program 1 times [2023-08-30 04:00:46,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:46,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579898593] [2023-08-30 04:00:46,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:46,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:46,564 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 04:00:46,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:46,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579898593] [2023-08-30 04:00:46,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579898593] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:46,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:46,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 04:00:46,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014551328] [2023-08-30 04:00:46,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:46,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:46,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:46,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:46,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:46,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 147 [2023-08-30 04:00:46,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 04:00:46,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:46,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 147 [2023-08-30 04:00:46,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:46,617 INFO L130 PetriNetUnfolder]: 25/86 cut-off events. [2023-08-30 04:00:46,619 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:46,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 86 events. 25/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 294 event pairs, 10 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 156. Up to 42 conditions per place. [2023-08-30 04:00:46,620 INFO L137 encePairwiseOnDemand]: 143/147 looper letters, 15 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2023-08-30 04:00:46,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 22 transitions, 82 flow [2023-08-30 04:00:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:46,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2023-08-30 04:00:46,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5396825396825397 [2023-08-30 04:00:46,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 238 transitions. [2023-08-30 04:00:46,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 238 transitions. [2023-08-30 04:00:46,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:46,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 238 transitions. [2023-08-30 04:00:46,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 04:00:46,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 04:00:46,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 04:00:46,626 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 34 flow. Second operand 3 states and 238 transitions. [2023-08-30 04:00:46,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 22 transitions, 82 flow [2023-08-30 04:00:46,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 04:00:46,628 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 56 flow [2023-08-30 04:00:46,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-08-30 04:00:46,629 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2023-08-30 04:00:46,629 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 56 flow [2023-08-30 04:00:46,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 04:00:46,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:46,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:46,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 04:00:46,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:46,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:46,631 INFO L85 PathProgramCache]: Analyzing trace with hash 257093219, now seen corresponding path program 1 times [2023-08-30 04:00:46,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:46,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593178453] [2023-08-30 04:00:46,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:46,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:46,783 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 04:00:46,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:46,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593178453] [2023-08-30 04:00:46,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593178453] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:46,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:46,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:00:46,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363881733] [2023-08-30 04:00:46,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:46,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:46,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:46,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:46,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:46,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 147 [2023-08-30 04:00:46,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 04:00:46,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:46,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 147 [2023-08-30 04:00:46,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:46,851 INFO L130 PetriNetUnfolder]: 19/72 cut-off events. [2023-08-30 04:00:46,851 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2023-08-30 04:00:46,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 72 events. 19/72 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 230 event pairs, 19 based on Foata normal form. 8/77 useless extension candidates. Maximal degree in co-relation 148. Up to 54 conditions per place. [2023-08-30 04:00:46,852 INFO L137 encePairwiseOnDemand]: 145/147 looper letters, 10 selfloop transitions, 1 changer transitions 1/16 dead transitions. [2023-08-30 04:00:46,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 16 transitions, 70 flow [2023-08-30 04:00:46,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2023-08-30 04:00:46,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170068027210885 [2023-08-30 04:00:46,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2023-08-30 04:00:46,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2023-08-30 04:00:46,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:46,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2023-08-30 04:00:46,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 04:00:46,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 04:00:46,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 04:00:46,862 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 56 flow. Second operand 3 states and 228 transitions. [2023-08-30 04:00:46,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 16 transitions, 70 flow [2023-08-30 04:00:46,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 16 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 04:00:46,863 INFO L231 Difference]: Finished difference. Result has 23 places, 15 transitions, 40 flow [2023-08-30 04:00:46,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=23, PETRI_TRANSITIONS=15} [2023-08-30 04:00:46,864 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2023-08-30 04:00:46,864 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 15 transitions, 40 flow [2023-08-30 04:00:46,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 04:00:46,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:46,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:46,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 04:00:46,865 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:46,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:46,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1320406241, now seen corresponding path program 1 times [2023-08-30 04:00:46,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:46,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087656205] [2023-08-30 04:00:46,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:46,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:46,965 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 04:00:46,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:46,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087656205] [2023-08-30 04:00:46,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087656205] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:46,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:46,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 04:00:46,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90319654] [2023-08-30 04:00:46,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:46,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:46,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:46,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:46,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:46,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 147 [2023-08-30 04:00:46,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 15 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 04:00:46,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:47,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 147 [2023-08-30 04:00:47,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:47,028 INFO L130 PetriNetUnfolder]: 10/38 cut-off events. [2023-08-30 04:00:47,028 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 04:00:47,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 38 events. 10/38 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 4 based on Foata normal form. 4/42 useless extension candidates. Maximal degree in co-relation 84. Up to 20 conditions per place. [2023-08-30 04:00:47,029 INFO L137 encePairwiseOnDemand]: 143/147 looper letters, 12 selfloop transitions, 4 changer transitions 0/17 dead transitions. [2023-08-30 04:00:47,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 78 flow [2023-08-30 04:00:47,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:47,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:47,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2023-08-30 04:00:47,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2023-08-30 04:00:47,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 225 transitions. [2023-08-30 04:00:47,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 225 transitions. [2023-08-30 04:00:47,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:47,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 225 transitions. [2023-08-30 04:00:47,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 04:00:47,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 04:00:47,033 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 04:00:47,034 INFO L175 Difference]: Start difference. First operand has 23 places, 15 transitions, 40 flow. Second operand 3 states and 225 transitions. [2023-08-30 04:00:47,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 78 flow [2023-08-30 04:00:47,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:00:47,034 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 47 flow [2023-08-30 04:00:47,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2023-08-30 04:00:47,035 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2023-08-30 04:00:47,035 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 47 flow [2023-08-30 04:00:47,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 04:00:47,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:47,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:47,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 04:00:47,036 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:47,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:47,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1136729867, now seen corresponding path program 2 times [2023-08-30 04:00:47,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:47,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4255285] [2023-08-30 04:00:47,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:47,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:47,147 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 04:00:47,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:47,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4255285] [2023-08-30 04:00:47,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4255285] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:47,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:47,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 04:00:47,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155167114] [2023-08-30 04:00:47,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:47,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 04:00:47,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:47,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 04:00:47,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 04:00:47,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 147 [2023-08-30 04:00:47,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 47 flow. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 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 04:00:47,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:47,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 147 [2023-08-30 04:00:47,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:47,251 INFO L130 PetriNetUnfolder]: 4/29 cut-off events. [2023-08-30 04:00:47,251 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 04:00:47,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 29 events. 4/29 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 4/33 useless extension candidates. Maximal degree in co-relation 73. Up to 15 conditions per place. [2023-08-30 04:00:47,251 INFO L137 encePairwiseOnDemand]: 142/147 looper letters, 13 selfloop transitions, 5 changer transitions 1/19 dead transitions. [2023-08-30 04:00:47,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 97 flow [2023-08-30 04:00:47,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:47,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:47,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 293 transitions. [2023-08-30 04:00:47,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49829931972789115 [2023-08-30 04:00:47,253 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 293 transitions. [2023-08-30 04:00:47,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 293 transitions. [2023-08-30 04:00:47,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:47,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 293 transitions. [2023-08-30 04:00:47,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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 04:00:47,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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 04:00:47,256 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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 04:00:47,256 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 47 flow. Second operand 4 states and 293 transitions. [2023-08-30 04:00:47,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 97 flow [2023-08-30 04:00:47,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:00:47,257 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 61 flow [2023-08-30 04:00:47,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=61, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2023-08-30 04:00:47,258 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 5 predicate places. [2023-08-30 04:00:47,258 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 61 flow [2023-08-30 04:00:47,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 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 04:00:47,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:47,259 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:47,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 04:00:47,259 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:47,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:47,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1856520679, now seen corresponding path program 1 times [2023-08-30 04:00:47,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:47,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405328088] [2023-08-30 04:00:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:47,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:47,413 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 04:00:47,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:47,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405328088] [2023-08-30 04:00:47,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405328088] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:47,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:47,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 04:00:47,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728882251] [2023-08-30 04:00:47,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:47,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 04:00:47,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:47,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 04:00:47,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-30 04:00:47,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 147 [2023-08-30 04:00:47,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 61 flow. Second operand has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 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 04:00:47,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:47,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 147 [2023-08-30 04:00:47,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:47,522 INFO L130 PetriNetUnfolder]: 1/14 cut-off events. [2023-08-30 04:00:47,522 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 04:00:47,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 14 events. 1/14 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 1 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 37. Up to 8 conditions per place. [2023-08-30 04:00:47,522 INFO L137 encePairwiseOnDemand]: 144/147 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-30 04:00:47,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 11 transitions, 61 flow [2023-08-30 04:00:47,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:47,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:47,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 279 transitions. [2023-08-30 04:00:47,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4744897959183674 [2023-08-30 04:00:47,525 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 279 transitions. [2023-08-30 04:00:47,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 279 transitions. [2023-08-30 04:00:47,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:47,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 279 transitions. [2023-08-30 04:00:47,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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 04:00:47,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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 04:00:47,527 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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 04:00:47,527 INFO L175 Difference]: Start difference. First operand has 27 places, 16 transitions, 61 flow. Second operand 4 states and 279 transitions. [2023-08-30 04:00:47,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 11 transitions, 61 flow [2023-08-30 04:00:47,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 11 transitions, 56 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 04:00:47,528 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-08-30 04:00:47,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-08-30 04:00:47,529 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2023-08-30 04:00:47,529 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-08-30 04:00:47,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 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 04:00:47,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2023-08-30 04:00:47,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-08-30 04:00:47,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2023-08-30 04:00:47,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-08-30 04:00:47,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 04:00:47,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 04:00:47,533 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-08-30 04:00:47,535 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 04:00:47,535 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 04:00:47,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:00:47 BasicIcfg [2023-08-30 04:00:47,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 04:00:47,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 04:00:47,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 04:00:47,543 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 04:00:47,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:42" (3/4) ... [2023-08-30 04:00:47,545 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 04:00:47,551 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 04:00:47,554 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-30 04:00:47,554 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 04:00:47,554 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 04:00:47,554 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 04:00:47,591 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 04:00:47,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 04:00:47,592 INFO L158 Benchmark]: Toolchain (without parser) took 6419.57ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 49.6MB in the beginning and 81.0MB in the end (delta: -31.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-08-30 04:00:47,593 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 34.9MB in the end (delta: 40.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:00:47,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.56ms. Allocated memory is still 73.4MB. Free memory was 49.4MB in the beginning and 49.0MB in the end (delta: 409.5kB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2023-08-30 04:00:47,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.97ms. Allocated memory is still 73.4MB. Free memory was 49.0MB in the beginning and 47.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:00:47,593 INFO L158 Benchmark]: Boogie Preprocessor took 49.22ms. Allocated memory is still 73.4MB. Free memory was 47.0MB in the beginning and 45.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 04:00:47,593 INFO L158 Benchmark]: RCFGBuilder took 419.25ms. Allocated memory is still 73.4MB. Free memory was 45.5MB in the beginning and 32.0MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 04:00:47,594 INFO L158 Benchmark]: TraceAbstraction took 5315.55ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 31.4MB in the beginning and 30.8MB in the end (delta: 614.8kB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2023-08-30 04:00:47,594 INFO L158 Benchmark]: Witness Printer took 53.29ms. Allocated memory is still 107.0MB. Free memory was 30.8MB in the beginning and 81.0MB in the end (delta: -50.2MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-08-30 04:00:47,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 34.9MB in the end (delta: 40.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.56ms. Allocated memory is still 73.4MB. Free memory was 49.4MB in the beginning and 49.0MB in the end (delta: 409.5kB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.97ms. Allocated memory is still 73.4MB. Free memory was 49.0MB in the beginning and 47.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.22ms. Allocated memory is still 73.4MB. Free memory was 47.0MB in the beginning and 45.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 419.25ms. Allocated memory is still 73.4MB. Free memory was 45.5MB in the beginning and 32.0MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5315.55ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 31.4MB in the beginning and 30.8MB in the end (delta: 614.8kB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * Witness Printer took 53.29ms. Allocated memory is still 107.0MB. Free memory was 30.8MB in the beginning and 81.0MB in the end (delta: -50.2MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 77 PlacesBefore, 22 PlacesAfterwards, 74 TransitionsBefore, 19 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 68 TotalNumberOfCompositions, 2032 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 807, independent: 621, independent conditional: 0, independent unconditional: 621, dependent: 186, dependent conditional: 0, dependent unconditional: 186, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 312, independent: 287, independent conditional: 0, independent unconditional: 287, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 807, independent: 334, independent conditional: 0, independent unconditional: 334, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 312, unknown conditional: 0, unknown unconditional: 312] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, 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: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 695]: 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, 94 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: 5.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 333 IncrementalHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 17 mSDtfsCounter, 333 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=5, InterpolantAutomatonStates: 19, 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, 0.6s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 04:00:47,622 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: TRUE