./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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_20-publish-regression_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 bdbcb1f6d336419408bc21eb9ac3a89d4566c9a0348f626a712e605b31e52535 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 21:34:40,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 21:34:40,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 21:34:40,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 21:34:40,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 21:34:40,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 21:34:40,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 21:34:40,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 21:34:40,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 21:34:40,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 21:34:40,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 21:34:40,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 21:34:40,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 21:34:40,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 21:34:40,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 21:34:40,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 21:34:40,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 21:34:40,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 21:34:40,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 21:34:40,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 21:34:40,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 21:34:40,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 21:34:40,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 21:34:40,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 21:34:40,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 21:34:40,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 21:34:40,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 21:34:40,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 21:34:40,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 21:34:40,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 21:34:40,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 21:34:40,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 21:34:40,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 21:34:40,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 21:34:40,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 21:34:40,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 21:34:40,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 21:34:40,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 21:34:40,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 21:34:40,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 21:34:40,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 21:34:40,388 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 21:34:40,419 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 21:34:40,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 21:34:40,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 21:34:40,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 21:34:40,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 21:34:40,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 21:34:40,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 21:34:40,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 21:34:40,422 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 21:34:40,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 21:34:40,423 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 21:34:40,423 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 21:34:40,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 21:34:40,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 21:34:40,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 21:34:40,424 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 21:34:40,424 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 21:34:40,424 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 21:34:40,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 21:34:40,424 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 21:34:40,425 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 21:34:40,425 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 21:34:40,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 21:34:40,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 21:34:40,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 21:34:40,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:34:40,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 21:34:40,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 21:34:40,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 21:34:40,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 21:34:40,427 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 21:34:40,427 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 21:34:40,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 21:34:40,427 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 21:34:40,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdbcb1f6d336419408bc21eb9ac3a89d4566c9a0348f626a712e605b31e52535 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 21:34:40,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 21:34:40,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 21:34:40,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 21:34:40,758 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 21:34:40,759 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 21:34:40,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2023-08-29 21:34:41,936 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 21:34:42,194 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 21:34:42,195 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2023-08-29 21:34:42,206 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46afbf164/88bdc6127f594d35a43e753bf70d11c6/FLAG5357b3589 [2023-08-29 21:34:42,220 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46afbf164/88bdc6127f594d35a43e753bf70d11c6 [2023-08-29 21:34:42,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 21:34:42,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 21:34:42,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 21:34:42,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 21:34:42,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 21:34:42,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297461b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42, skipping insertion in model container [2023-08-29 21:34:42,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 21:34:42,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 21:34:42,389 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_20-publish-regression_true.i[1095,1108] [2023-08-29 21:34:42,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:34:42,542 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 21:34:42,557 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_20-publish-regression_true.i[1095,1108] [2023-08-29 21:34:42,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:34:42,664 INFO L208 MainTranslator]: Completed translation [2023-08-29 21:34:42,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42 WrapperNode [2023-08-29 21:34:42,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 21:34:42,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 21:34:42,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 21:34:42,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 21:34:42,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,754 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2023-08-29 21:34:42,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 21:34:42,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 21:34:42,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 21:34:42,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 21:34:42,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,790 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 21:34:42,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 21:34:42,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 21:34:42,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 21:34:42,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (1/1) ... [2023-08-29 21:34:42,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:34:42,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 21:34:42,830 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) [2023-08-29 21:34:42,847 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 [2023-08-29 21:34:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 21:34:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 21:34:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 21:34:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 21:34:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 21:34:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 21:34:42,874 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 21:34:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 21:34:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 21:34:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 21:34:42,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 21:34:42,876 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 21:34:43,026 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 21:34:43,032 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 21:34:43,256 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 21:34:43,262 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 21:34:43,263 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 21:34:43,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:34:43 BoogieIcfgContainer [2023-08-29 21:34:43,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 21:34:43,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 21:34:43,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 21:34:43,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 21:34:43,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:34:42" (1/3) ... [2023-08-29 21:34:43,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c90fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:34:43, skipping insertion in model container [2023-08-29 21:34:43,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:42" (2/3) ... [2023-08-29 21:34:43,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c90fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:34:43, skipping insertion in model container [2023-08-29 21:34:43,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:34:43" (3/3) ... [2023-08-29 21:34:43,271 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2023-08-29 21:34:43,285 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 21:34:43,286 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-29 21:34:43,286 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 21:34:43,325 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 21:34:43,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 89 transitions, 186 flow [2023-08-29 21:34:43,403 INFO L130 PetriNetUnfolder]: 3/88 cut-off events. [2023-08-29 21:34:43,404 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:34:43,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 88 events. 3/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-08-29 21:34:43,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 89 transitions, 186 flow [2023-08-29 21:34:43,411 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 84 transitions, 174 flow [2023-08-29 21:34:43,414 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 21:34:43,422 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 84 transitions, 174 flow [2023-08-29 21:34:43,425 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 84 transitions, 174 flow [2023-08-29 21:34:43,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 84 transitions, 174 flow [2023-08-29 21:34:43,443 INFO L130 PetriNetUnfolder]: 3/84 cut-off events. [2023-08-29 21:34:43,444 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:34:43,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 84 events. 3/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-08-29 21:34:43,446 INFO L119 LiptonReduction]: Number of co-enabled transitions 704 [2023-08-29 21:34:46,838 INFO L134 LiptonReduction]: Checked pairs total: 2427 [2023-08-29 21:34:46,838 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-08-29 21:34:46,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 21:34:46,854 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;@1667eb64, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 21:34:46,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-29 21:34:46,855 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 21:34:46,855 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:34:46,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:46,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 21:34:46,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-29 21:34:46,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:46,860 INFO L85 PathProgramCache]: Analyzing trace with hash 329, now seen corresponding path program 1 times [2023-08-29 21:34:46,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:46,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925079676] [2023-08-29 21:34:46,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:46,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:34:46,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:46,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925079676] [2023-08-29 21:34:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925079676] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:46,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:46,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 21:34:46,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471396662] [2023-08-29 21:34:46,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:46,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 21:34:46,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:46,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 21:34:46,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 21:34:46,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 175 [2023-08-29 21:34:46,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 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) [2023-08-29 21:34:46,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:46,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 175 [2023-08-29 21:34:46,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:47,034 INFO L130 PetriNetUnfolder]: 42/112 cut-off events. [2023-08-29 21:34:47,034 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:34:47,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 112 events. 42/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 433 event pairs, 42 based on Foata normal form. 7/76 useless extension candidates. Maximal degree in co-relation 205. Up to 102 conditions per place. [2023-08-29 21:34:47,036 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 17 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2023-08-29 21:34:47,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 80 flow [2023-08-29 21:34:47,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 21:34:47,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 21:34:47,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 183 transitions. [2023-08-29 21:34:47,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5228571428571429 [2023-08-29 21:34:47,048 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 183 transitions. [2023-08-29 21:34:47,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 183 transitions. [2023-08-29 21:34:47,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:47,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 183 transitions. [2023-08-29 21:34:47,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 91.5) internal successors, (183), 2 states have internal predecessors, (183), 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) [2023-08-29 21:34:47,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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) [2023-08-29 21:34:47,057 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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) [2023-08-29 21:34:47,059 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 54 flow. Second operand 2 states and 183 transitions. [2023-08-29 21:34:47,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 80 flow [2023-08-29 21:34:47,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:34:47,062 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 42 flow [2023-08-29 21:34:47,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2023-08-29 21:34:47,066 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -4 predicate places. [2023-08-29 21:34:47,066 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 42 flow [2023-08-29 21:34:47,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 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) [2023-08-29 21:34:47,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:47,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 21:34:47,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 21:34:47,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-29 21:34:47,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:47,068 INFO L85 PathProgramCache]: Analyzing trace with hash 10166392, now seen corresponding path program 1 times [2023-08-29 21:34:47,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:47,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555063046] [2023-08-29 21:34:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:47,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:34:47,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:47,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555063046] [2023-08-29 21:34:47,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555063046] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:47,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:47,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:34:47,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132204024] [2023-08-29 21:34:47,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:47,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:47,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:47,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:47,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:47,290 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 175 [2023-08-29 21:34:47,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 42 flow. Second operand has 3 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) [2023-08-29 21:34:47,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:47,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 175 [2023-08-29 21:34:47,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:47,327 INFO L130 PetriNetUnfolder]: 43/116 cut-off events. [2023-08-29 21:34:47,327 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:34:47,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 116 events. 43/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 412 event pairs, 23 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 223. Up to 55 conditions per place. [2023-08-29 21:34:47,328 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 20 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2023-08-29 21:34:47,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 98 flow [2023-08-29 21:34:47,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:47,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-08-29 21:34:47,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49142857142857144 [2023-08-29 21:34:47,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-08-29 21:34:47,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-08-29 21:34:47,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:47,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-08-29 21:34:47,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2023-08-29 21:34:47,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:47,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:47,335 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 42 flow. Second operand 3 states and 258 transitions. [2023-08-29 21:34:47,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 98 flow [2023-08-29 21:34:47,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 98 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 21:34:47,336 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 53 flow [2023-08-29 21:34:47,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-08-29 21:34:47,337 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2023-08-29 21:34:47,337 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 53 flow [2023-08-29 21:34:47,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-08-29 21:34:47,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:47,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 21:34:47,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 21:34:47,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-29 21:34:47,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:47,339 INFO L85 PathProgramCache]: Analyzing trace with hash 315157694, now seen corresponding path program 1 times [2023-08-29 21:34:47,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:47,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170489428] [2023-08-29 21:34:47,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:47,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:47,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:34:47,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:47,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170489428] [2023-08-29 21:34:47,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170489428] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:47,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:47,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:34:47,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305731944] [2023-08-29 21:34:47,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:47,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:47,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:47,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:47,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:47,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 175 [2023-08-29 21:34:47,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-29 21:34:47,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:47,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 175 [2023-08-29 21:34:47,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:47,521 INFO L130 PetriNetUnfolder]: 31/90 cut-off events. [2023-08-29 21:34:47,522 INFO L131 PetriNetUnfolder]: For 16/17 co-relation queries the response was YES. [2023-08-29 21:34:47,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 90 events. 31/90 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 319 event pairs, 31 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 186. Up to 79 conditions per place. [2023-08-29 21:34:47,527 INFO L137 encePairwiseOnDemand]: 172/175 looper letters, 14 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2023-08-29 21:34:47,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 83 flow [2023-08-29 21:34:47,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:47,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:47,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2023-08-29 21:34:47,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2023-08-29 21:34:47,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions. [2023-08-29 21:34:47,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions. [2023-08-29 21:34:47,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:47,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions. [2023-08-29 21:34:47,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-08-29 21:34:47,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:47,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:47,534 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 53 flow. Second operand 3 states and 245 transitions. [2023-08-29 21:34:47,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 83 flow [2023-08-29 21:34:47,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 77 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:34:47,536 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 49 flow [2023-08-29 21:34:47,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-08-29 21:34:47,537 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2023-08-29 21:34:47,537 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 49 flow [2023-08-29 21:34:47,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-29 21:34:47,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:47,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 21:34:47,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 21:34:47,538 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-29 21:34:47,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:47,538 INFO L85 PathProgramCache]: Analyzing trace with hash 315157693, now seen corresponding path program 1 times [2023-08-29 21:34:47,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:47,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055348165] [2023-08-29 21:34:47,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:47,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:34:47,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:47,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055348165] [2023-08-29 21:34:47,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055348165] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:47,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:47,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:34:47,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27562499] [2023-08-29 21:34:47,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:47,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:47,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:47,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:47,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:47,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2023-08-29 21:34:47,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2023-08-29 21:34:47,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:47,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2023-08-29 21:34:47,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:47,703 INFO L130 PetriNetUnfolder]: 24/74 cut-off events. [2023-08-29 21:34:47,703 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2023-08-29 21:34:47,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 74 events. 24/74 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 235 event pairs, 24 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 148. Up to 64 conditions per place. [2023-08-29 21:34:47,705 INFO L137 encePairwiseOnDemand]: 172/175 looper letters, 13 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-08-29 21:34:47,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 77 flow [2023-08-29 21:34:47,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:47,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-08-29 21:34:47,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44761904761904764 [2023-08-29 21:34:47,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-08-29 21:34:47,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-08-29 21:34:47,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:47,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-08-29 21:34:47,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2023-08-29 21:34:47,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:47,716 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:47,720 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 49 flow. Second operand 3 states and 235 transitions. [2023-08-29 21:34:47,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 77 flow [2023-08-29 21:34:47,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 73 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:34:47,721 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 47 flow [2023-08-29 21:34:47,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-08-29 21:34:47,722 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2023-08-29 21:34:47,723 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 47 flow [2023-08-29 21:34:47,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2023-08-29 21:34:47,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:47,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:47,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 21:34:47,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-29 21:34:47,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:47,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2106332852, now seen corresponding path program 1 times [2023-08-29 21:34:47,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:47,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073819721] [2023-08-29 21:34:47,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:47,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:34:47,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:47,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073819721] [2023-08-29 21:34:47,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073819721] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:47,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:47,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:34:47,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636601835] [2023-08-29 21:34:47,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:47,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:47,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:47,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:47,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:47,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2023-08-29 21:34:47,844 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 47 flow. Second operand has 3 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) [2023-08-29 21:34:47,844 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:47,844 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2023-08-29 21:34:47,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:47,890 INFO L130 PetriNetUnfolder]: 24/76 cut-off events. [2023-08-29 21:34:47,890 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 21:34:47,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 76 events. 24/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 224 event pairs, 7 based on Foata normal form. 4/70 useless extension candidates. Maximal degree in co-relation 159. Up to 39 conditions per place. [2023-08-29 21:34:47,891 INFO L137 encePairwiseOnDemand]: 169/175 looper letters, 19 selfloop transitions, 6 changer transitions 0/26 dead transitions. [2023-08-29 21:34:47,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 26 transitions, 114 flow [2023-08-29 21:34:47,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:47,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:47,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-29 21:34:47,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4742857142857143 [2023-08-29 21:34:47,893 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-29 21:34:47,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-29 21:34:47,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:47,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-29 21:34:47,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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) [2023-08-29 21:34:47,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:47,896 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:47,897 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 47 flow. Second operand 3 states and 249 transitions. [2023-08-29 21:34:47,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 26 transitions, 114 flow [2023-08-29 21:34:47,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 26 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:34:47,898 INFO L231 Difference]: Finished difference. Result has 25 places, 21 transitions, 73 flow [2023-08-29 21:34:47,898 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=25, PETRI_TRANSITIONS=21} [2023-08-29 21:34:47,900 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2023-08-29 21:34:47,901 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 21 transitions, 73 flow [2023-08-29 21:34:47,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-08-29 21:34:47,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:47,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:47,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 21:34:47,902 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-29 21:34:47,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:47,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2106718173, now seen corresponding path program 1 times [2023-08-29 21:34:47,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:47,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755131470] [2023-08-29 21:34:47,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:47,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:34:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:47,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755131470] [2023-08-29 21:34:47,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755131470] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:47,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:47,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:34:47,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898270134] [2023-08-29 21:34:47,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:47,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:47,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:47,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:47,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:47,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 175 [2023-08-29 21:34:47,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-08-29 21:34:47,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:47,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 175 [2023-08-29 21:34:47,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:48,012 INFO L130 PetriNetUnfolder]: 15/56 cut-off events. [2023-08-29 21:34:48,012 INFO L131 PetriNetUnfolder]: For 17/18 co-relation queries the response was YES. [2023-08-29 21:34:48,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 56 events. 15/56 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 133 event pairs, 7 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 152. Up to 36 conditions per place. [2023-08-29 21:34:48,015 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 17 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2023-08-29 21:34:48,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 22 transitions, 119 flow [2023-08-29 21:34:48,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:48,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-29 21:34:48,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4819047619047619 [2023-08-29 21:34:48,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-29 21:34:48,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-29 21:34:48,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:48,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-29 21:34:48,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2023-08-29 21:34:48,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:48,019 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:48,019 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 73 flow. Second operand 3 states and 253 transitions. [2023-08-29 21:34:48,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 22 transitions, 119 flow [2023-08-29 21:34:48,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 111 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:34:48,021 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 67 flow [2023-08-29 21:34:48,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2023-08-29 21:34:48,024 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2023-08-29 21:34:48,024 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 67 flow [2023-08-29 21:34:48,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-08-29 21:34:48,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:48,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:48,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 21:34:48,025 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-29 21:34:48,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:48,027 INFO L85 PathProgramCache]: Analyzing trace with hash -883754353, now seen corresponding path program 1 times [2023-08-29 21:34:48,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:48,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361485545] [2023-08-29 21:34:48,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:48,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:34:48,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:48,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361485545] [2023-08-29 21:34:48,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361485545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:48,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:48,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 21:34:48,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98426123] [2023-08-29 21:34:48,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:48,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 21:34:48,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:48,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 21:34:48,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-29 21:34:48,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2023-08-29 21:34:48,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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) [2023-08-29 21:34:48,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:48,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2023-08-29 21:34:48,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:48,201 INFO L130 PetriNetUnfolder]: 4/33 cut-off events. [2023-08-29 21:34:48,201 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 21:34:48,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 33 events. 4/33 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 3 based on Foata normal form. 3/36 useless extension candidates. Maximal degree in co-relation 88. Up to 19 conditions per place. [2023-08-29 21:34:48,202 INFO L137 encePairwiseOnDemand]: 170/175 looper letters, 10 selfloop transitions, 6 changer transitions 0/17 dead transitions. [2023-08-29 21:34:48,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 17 transitions, 91 flow [2023-08-29 21:34:48,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 21:34:48,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 21:34:48,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2023-08-29 21:34:48,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44 [2023-08-29 21:34:48,203 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 308 transitions. [2023-08-29 21:34:48,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 308 transitions. [2023-08-29 21:34:48,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:48,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 308 transitions. [2023-08-29 21:34:48,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2023-08-29 21:34:48,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 175.0) internal successors, (875), 5 states have internal predecessors, (875), 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) [2023-08-29 21:34:48,206 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 175.0) internal successors, (875), 5 states have internal predecessors, (875), 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) [2023-08-29 21:34:48,206 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 67 flow. Second operand 4 states and 308 transitions. [2023-08-29 21:34:48,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 17 transitions, 91 flow [2023-08-29 21:34:48,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 82 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-29 21:34:48,208 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 62 flow [2023-08-29 21:34:48,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-08-29 21:34:48,209 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -4 predicate places. [2023-08-29 21:34:48,209 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 62 flow [2023-08-29 21:34:48,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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) [2023-08-29 21:34:48,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:48,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:48,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 21:34:48,209 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-29 21:34:48,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:48,210 INFO L85 PathProgramCache]: Analyzing trace with hash 186551281, now seen corresponding path program 1 times [2023-08-29 21:34:48,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:48,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679012018] [2023-08-29 21:34:48,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:48,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:48,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:34:48,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:48,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679012018] [2023-08-29 21:34:48,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679012018] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:48,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:48,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:34:48,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780862503] [2023-08-29 21:34:48,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:48,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:48,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:48,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:48,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:48,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 175 [2023-08-29 21:34:48,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-08-29 21:34:48,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:48,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 175 [2023-08-29 21:34:48,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:48,364 INFO L130 PetriNetUnfolder]: 4/32 cut-off events. [2023-08-29 21:34:48,364 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-29 21:34:48,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 32 events. 4/32 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 3 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 86. Up to 26 conditions per place. [2023-08-29 21:34:48,365 INFO L137 encePairwiseOnDemand]: 173/175 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2023-08-29 21:34:48,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 16 transitions, 86 flow [2023-08-29 21:34:48,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:48,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2023-08-29 21:34:48,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46285714285714286 [2023-08-29 21:34:48,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 243 transitions. [2023-08-29 21:34:48,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 243 transitions. [2023-08-29 21:34:48,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:48,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 243 transitions. [2023-08-29 21:34:48,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-08-29 21:34:48,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:48,369 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-08-29 21:34:48,369 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 62 flow. Second operand 3 states and 243 transitions. [2023-08-29 21:34:48,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 16 transitions, 86 flow [2023-08-29 21:34:48,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:34:48,371 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-08-29 21:34:48,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=20, 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=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-08-29 21:34:48,373 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -5 predicate places. [2023-08-29 21:34:48,373 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-08-29 21:34:48,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-08-29 21:34:48,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2023-08-29 21:34:48,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2023-08-29 21:34:48,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2023-08-29 21:34:48,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (6 of 10 remaining) [2023-08-29 21:34:48,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2023-08-29 21:34:48,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2023-08-29 21:34:48,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2023-08-29 21:34:48,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2023-08-29 21:34:48,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 10 remaining) [2023-08-29 21:34:48,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2023-08-29 21:34:48,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 21:34:48,378 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:48,382 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 21:34:48,382 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 21:34:48,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:34:48 BasicIcfg [2023-08-29 21:34:48,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 21:34:48,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 21:34:48,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 21:34:48,390 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 21:34:48,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:34:43" (3/4) ... [2023-08-29 21:34:48,393 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 21:34:48,397 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 21:34:48,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-29 21:34:48,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 21:34:48,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 21:34:48,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 21:34:48,434 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 21:34:48,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 21:34:48,435 INFO L158 Benchmark]: Toolchain (without parser) took 6212.38ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 56.6MB in the beginning and 61.5MB in the end (delta: -4.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2023-08-29 21:34:48,435 INFO L158 Benchmark]: CDTParser took 0.94ms. Allocated memory is still 60.8MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:34:48,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.85ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 57.7MB in the end (delta: -1.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-08-29 21:34:48,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.86ms. Allocated memory is still 79.7MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:34:48,436 INFO L158 Benchmark]: Boogie Preprocessor took 45.02ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 54.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:34:48,436 INFO L158 Benchmark]: RCFGBuilder took 464.01ms. Allocated memory is still 79.7MB. Free memory was 53.9MB in the beginning and 40.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 21:34:48,436 INFO L158 Benchmark]: TraceAbstraction took 5123.63ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 39.3MB in the beginning and 63.6MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:34:48,437 INFO L158 Benchmark]: Witness Printer took 44.45ms. Allocated memory is still 96.5MB. Free memory was 63.6MB in the beginning and 61.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:34:48,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94ms. Allocated memory is still 60.8MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.85ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 57.7MB in the end (delta: -1.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.86ms. Allocated memory is still 79.7MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.02ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 54.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 464.01ms. Allocated memory is still 79.7MB. Free memory was 53.9MB in the beginning and 40.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5123.63ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 39.3MB in the beginning and 63.6MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.45ms. Allocated memory is still 96.5MB. Free memory was 63.6MB in the beginning and 61.5MB in the end (delta: 2.1MB). 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: 3.4s, 85 PlacesBefore, 27 PlacesAfterwards, 84 TransitionsBefore, 24 TransitionsAfterwards, 704 CoEnabledTransitionPairs, 8 FixpointIterations, 53 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 86 TotalNumberOfCompositions, 2427 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 973, independent: 743, independent conditional: 0, independent unconditional: 743, dependent: 230, dependent conditional: 0, dependent unconditional: 230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 383, independent: 355, independent conditional: 0, independent unconditional: 355, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 973, independent: 388, independent conditional: 0, independent unconditional: 388, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 383, unknown conditional: 0, unknown unconditional: 383] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: 696]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 10 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: 5.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 287 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 339 IncrementalHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 15 mSDtfsCounter, 339 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=5, InterpolantAutomatonStates: 24, 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, 8 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 21:34:48,464 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