./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/10-synch_01-thread_unique.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/10-synch_01-thread_unique.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f1f1c8f9ab1c230a124cee5d642a3f2063dd1bf51b20bdb3c19b17194d93f67 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:58:20,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:58:20,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:58:20,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:58:20,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:58:20,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:58:20,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:58:20,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:58:20,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:58:20,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:58:20,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:58:20,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:58:20,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:58:20,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:58:20,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:58:20,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:58:20,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:58:20,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:58:20,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:58:20,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:58:20,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:58:20,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:58:20,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:58:20,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:58:20,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:58:20,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:58:20,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:58:20,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:58:20,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:58:20,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:58:20,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:58:20,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:58:20,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:58:20,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:58:20,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:58:20,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:58:20,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:58:20,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:58:20,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:58:20,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:58:20,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:58:20,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:58:20,774 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:58:20,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:58:20,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:58:20,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:58:20,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:58:20,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:58:20,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:58:20,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:58:20,778 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:58:20,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:58:20,779 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:58:20,779 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:58:20,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:58:20,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:58:20,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:58:20,780 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:58:20,780 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:58:20,780 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:58:20,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:58:20,781 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:58:20,781 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:58:20,781 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:58:20,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:58:20,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:58:20,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:58:20,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:58:20,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:58:20,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:58:20,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:58:20,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:58:20,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:58:20,784 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:58:20,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:58:20,785 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:58:20,785 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f1f1c8f9ab1c230a124cee5d642a3f2063dd1bf51b20bdb3c19b17194d93f67 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:58:21,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:58:21,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:58:21,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:58:21,151 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:58:21,151 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:58:21,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/10-synch_01-thread_unique.i [2023-08-30 03:58:22,411 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:58:22,672 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:58:22,673 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/10-synch_01-thread_unique.i [2023-08-30 03:58:22,693 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0605aee/b2a2f5fe549e432c8fd4908c496e25c0/FLAG4327b2e06 [2023-08-30 03:58:22,707 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0605aee/b2a2f5fe549e432c8fd4908c496e25c0 [2023-08-30 03:58:22,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:58:22,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:58:22,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:58:22,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:58:22,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:58:22,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:58:22" (1/1) ... [2023-08-30 03:58:22,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6251730f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:22, skipping insertion in model container [2023-08-30 03:58:22,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:58:22" (1/1) ... [2023-08-30 03:58:22,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:58:22,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:58:23,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:58:23,188 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:58:23,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:58:23,281 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:58:23,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23 WrapperNode [2023-08-30 03:58:23,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:58:23,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:58:23,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:58:23,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:58:23,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,341 INFO L138 Inliner]: procedures = 259, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-08-30 03:58:23,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:58:23,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:58:23,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:58:23,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:58:23,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,375 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:58:23,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:58:23,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:58:23,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:58:23,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (1/1) ... [2023-08-30 03:58:23,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:58:23,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:58:23,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 03:58:23,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 03:58:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:58:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:58:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 03:58:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:58:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:58:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:58:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:58:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:58:23,466 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:58:23,596 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:58:23,606 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:58:23,733 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:58:23,737 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:58:23,738 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:58:23,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:58:23 BoogieIcfgContainer [2023-08-30 03:58:23,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:58:23,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:58:23,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:58:23,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:58:23,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:58:22" (1/3) ... [2023-08-30 03:58:23,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3795539f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:58:23, skipping insertion in model container [2023-08-30 03:58:23,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:23" (2/3) ... [2023-08-30 03:58:23,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3795539f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:58:23, skipping insertion in model container [2023-08-30 03:58:23,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:58:23" (3/3) ... [2023-08-30 03:58:23,747 INFO L112 eAbstractionObserver]: Analyzing ICFG 10-synch_01-thread_unique.i [2023-08-30 03:58:23,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:58:23,762 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-30 03:58:23,763 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:58:23,823 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:58:23,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 76 flow [2023-08-30 03:58:23,888 INFO L130 PetriNetUnfolder]: 0/33 cut-off events. [2023-08-30 03:58:23,892 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:58:23,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 33 events. 0/33 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-30 03:58:23,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 76 flow [2023-08-30 03:58:23,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 29 transitions, 64 flow [2023-08-30 03:58:23,900 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:58:23,912 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 29 transitions, 64 flow [2023-08-30 03:58:23,916 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 29 transitions, 64 flow [2023-08-30 03:58:23,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 64 flow [2023-08-30 03:58:23,934 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2023-08-30 03:58:23,935 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:58:23,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 29 events. 0/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-30 03:58:23,936 INFO L119 LiptonReduction]: Number of co-enabled transitions 40 [2023-08-30 03:58:24,828 INFO L134 LiptonReduction]: Checked pairs total: 53 [2023-08-30 03:58:24,828 INFO L136 LiptonReduction]: Total number of compositions: 29 [2023-08-30 03:58:24,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:58:24,844 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;@6e171c7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:58:24,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-30 03:58:24,846 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 03:58:24,847 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:58:24,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:24,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:58:24,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-08-30 03:58:24,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:24,852 INFO L85 PathProgramCache]: Analyzing trace with hash 132, now seen corresponding path program 1 times [2023-08-30 03:58:24,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:24,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856163054] [2023-08-30 03:58:24,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:24,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:24,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:24,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:24,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856163054] [2023-08-30 03:58:24,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856163054] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:24,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:25,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:58:25,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716833364] [2023-08-30 03:58:25,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:25,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:58:25,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:25,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:58:25,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:58:25,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 63 [2023-08-30 03:58:25,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 26 flow. Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:25,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 63 [2023-08-30 03:58:25,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:25,052 INFO L130 PetriNetUnfolder]: 3/14 cut-off events. [2023-08-30 03:58:25,052 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:58:25,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 14 events. 3/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 19 event pairs, 3 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 20. Up to 15 conditions per place. [2023-08-30 03:58:25,054 INFO L137 encePairwiseOnDemand]: 61/63 looper letters, 8 selfloop transitions, 0 changer transitions 0/8 dead transitions. [2023-08-30 03:58:25,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 38 flow [2023-08-30 03:58:25,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:58:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:58:25,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 74 transitions. [2023-08-30 03:58:25,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2023-08-30 03:58:25,064 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 74 transitions. [2023-08-30 03:58:25,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 74 transitions. [2023-08-30 03:58:25,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:25,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 74 transitions. [2023-08-30 03:58:25,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,072 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,073 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 74 transitions. [2023-08-30 03:58:25,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 38 flow [2023-08-30 03:58:25,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:58:25,077 INFO L231 Difference]: Finished difference. Result has 11 places, 8 transitions, 18 flow [2023-08-30 03:58:25,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=18, PETRI_PLACES=11, PETRI_TRANSITIONS=8} [2023-08-30 03:58:25,081 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-08-30 03:58:25,081 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 8 transitions, 18 flow [2023-08-30 03:58:25,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:25,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:58:25,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:58:25,082 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-08-30 03:58:25,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash 131126, now seen corresponding path program 1 times [2023-08-30 03:58:25,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:25,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103747572] [2023-08-30 03:58:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:25,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:25,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103747572] [2023-08-30 03:58:25,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103747572] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:25,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:25,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:58:25,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752308215] [2023-08-30 03:58:25,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:25,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:58:25,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:25,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:58:25,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:58:25,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 63 [2023-08-30 03:58:25,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 8 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:25,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 63 [2023-08-30 03:58:25,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:25,239 INFO L130 PetriNetUnfolder]: 2/11 cut-off events. [2023-08-30 03:58:25,239 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:58:25,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 10 event pairs, 2 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 23. Up to 10 conditions per place. [2023-08-30 03:58:25,240 INFO L137 encePairwiseOnDemand]: 60/63 looper letters, 5 selfloop transitions, 2 changer transitions 0/7 dead transitions. [2023-08-30 03:58:25,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 30 flow [2023-08-30 03:58:25,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:58:25,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:58:25,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2023-08-30 03:58:25,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42328042328042326 [2023-08-30 03:58:25,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 80 transitions. [2023-08-30 03:58:25,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 80 transitions. [2023-08-30 03:58:25,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:25,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 80 transitions. [2023-08-30 03:58:25,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,245 INFO L175 Difference]: Start difference. First operand has 11 places, 8 transitions, 18 flow. Second operand 3 states and 80 transitions. [2023-08-30 03:58:25,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 30 flow [2023-08-30 03:58:25,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:58:25,246 INFO L231 Difference]: Finished difference. Result has 12 places, 7 transitions, 20 flow [2023-08-30 03:58:25,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20, PETRI_PLACES=12, PETRI_TRANSITIONS=7} [2023-08-30 03:58:25,246 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -2 predicate places. [2023-08-30 03:58:25,247 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 7 transitions, 20 flow [2023-08-30 03:58:25,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:25,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:58:25,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:58:25,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-08-30 03:58:25,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:25,248 INFO L85 PathProgramCache]: Analyzing trace with hash 131128, now seen corresponding path program 1 times [2023-08-30 03:58:25,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:25,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279422004] [2023-08-30 03:58:25,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:25,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:25,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:25,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:25,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279422004] [2023-08-30 03:58:25,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279422004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:25,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:25,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:58:25,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220888072] [2023-08-30 03:58:25,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:25,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:58:25,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:25,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:58:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:58:25,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 63 [2023-08-30 03:58:25,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 7 transitions, 20 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:25,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 63 [2023-08-30 03:58:25,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:25,453 INFO L130 PetriNetUnfolder]: 1/8 cut-off events. [2023-08-30 03:58:25,453 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:58:25,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 8 events. 1/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 19. Up to 7 conditions per place. [2023-08-30 03:58:25,453 INFO L137 encePairwiseOnDemand]: 60/63 looper letters, 4 selfloop transitions, 2 changer transitions 0/6 dead transitions. [2023-08-30 03:58:25,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 6 transitions, 30 flow [2023-08-30 03:58:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:58:25,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:58:25,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2023-08-30 03:58:25,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4656084656084656 [2023-08-30 03:58:25,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 88 transitions. [2023-08-30 03:58:25,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 88 transitions. [2023-08-30 03:58:25,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:25,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 88 transitions. [2023-08-30 03:58:25,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,458 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,458 INFO L175 Difference]: Start difference. First operand has 12 places, 7 transitions, 20 flow. Second operand 3 states and 88 transitions. [2023-08-30 03:58:25,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 6 transitions, 30 flow [2023-08-30 03:58:25,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:58:25,459 INFO L231 Difference]: Finished difference. Result has 11 places, 6 transitions, 18 flow [2023-08-30 03:58:25,459 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=18, PETRI_PLACES=11, PETRI_TRANSITIONS=6} [2023-08-30 03:58:25,460 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-08-30 03:58:25,460 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 6 transitions, 18 flow [2023-08-30 03:58:25,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:25,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 03:58:25,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:58:25,461 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-08-30 03:58:25,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:25,461 INFO L85 PathProgramCache]: Analyzing trace with hash -388235628, now seen corresponding path program 1 times [2023-08-30 03:58:25,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:25,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137387215] [2023-08-30 03:58:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:25,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:25,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:25,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137387215] [2023-08-30 03:58:25,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137387215] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:25,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:25,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:58:25,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997015694] [2023-08-30 03:58:25,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:25,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:58:25,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:25,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:58:25,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:58:25,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 63 [2023-08-30 03:58:25,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 6 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:25,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 63 [2023-08-30 03:58:25,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:25,584 INFO L130 PetriNetUnfolder]: 1/7 cut-off events. [2023-08-30 03:58:25,585 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:58:25,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 7 events. 1/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 16. Up to 7 conditions per place. [2023-08-30 03:58:25,585 INFO L137 encePairwiseOnDemand]: 61/63 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2023-08-30 03:58:25,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 5 transitions, 24 flow [2023-08-30 03:58:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:58:25,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:58:25,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2023-08-30 03:58:25,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-08-30 03:58:25,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 90 transitions. [2023-08-30 03:58:25,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 90 transitions. [2023-08-30 03:58:25,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:25,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 90 transitions. [2023-08-30 03:58:25,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,589 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,589 INFO L175 Difference]: Start difference. First operand has 11 places, 6 transitions, 18 flow. Second operand 3 states and 90 transitions. [2023-08-30 03:58:25,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 5 transitions, 24 flow [2023-08-30 03:58:25,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 5 transitions, 23 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:58:25,590 INFO L231 Difference]: Finished difference. Result has 11 places, 0 transitions, 0 flow [2023-08-30 03:58:25,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=11, PETRI_TRANSITIONS=0} [2023-08-30 03:58:25,591 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-08-30 03:58:25,591 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 0 transitions, 0 flow [2023-08-30 03:58:25,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:58:25,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2023-08-30 03:58:25,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2023-08-30 03:58:25,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2023-08-30 03:58:25,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2023-08-30 03:58:25,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2023-08-30 03:58:25,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2023-08-30 03:58:25,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:58:25,595 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 03:58:25,598 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:58:25,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:58:25,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:58:25 BasicIcfg [2023-08-30 03:58:25,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:58:25,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:58:25,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:58:25,603 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:58:25,603 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:58:23" (3/4) ... [2023-08-30 03:58:25,605 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:58:25,610 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 03:58:25,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-08-30 03:58:25,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:58:25,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:58:25,637 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:58:25,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:58:25,638 INFO L158 Benchmark]: Toolchain (without parser) took 2926.93ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 37.3MB in the beginning and 40.0MB in the end (delta: -2.7MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-08-30 03:58:25,638 INFO L158 Benchmark]: CDTParser took 0.97ms. Allocated memory is still 52.4MB. Free memory is still 30.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:58:25,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.11ms. Allocated memory is still 71.3MB. Free memory was 37.1MB in the beginning and 30.7MB in the end (delta: 6.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2023-08-30 03:58:25,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.36ms. Allocated memory is still 71.3MB. Free memory was 30.7MB in the beginning and 28.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:58:25,639 INFO L158 Benchmark]: Boogie Preprocessor took 39.66ms. Allocated memory is still 71.3MB. Free memory was 28.5MB in the beginning and 27.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:58:25,640 INFO L158 Benchmark]: RCFGBuilder took 357.68ms. Allocated memory is still 71.3MB. Free memory was 27.4MB in the beginning and 40.6MB in the end (delta: -13.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 03:58:25,640 INFO L158 Benchmark]: TraceAbstraction took 1860.72ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 39.9MB in the beginning and 42.1MB in the end (delta: -2.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-08-30 03:58:25,641 INFO L158 Benchmark]: Witness Printer took 35.15ms. Allocated memory is still 86.0MB. Free memory was 42.1MB in the beginning and 40.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:58:25,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97ms. Allocated memory is still 52.4MB. Free memory is still 30.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.11ms. Allocated memory is still 71.3MB. Free memory was 37.1MB in the beginning and 30.7MB in the end (delta: 6.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.36ms. Allocated memory is still 71.3MB. Free memory was 30.7MB in the beginning and 28.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.66ms. Allocated memory is still 71.3MB. Free memory was 28.5MB in the beginning and 27.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 357.68ms. Allocated memory is still 71.3MB. Free memory was 27.4MB in the beginning and 40.6MB in the end (delta: -13.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1860.72ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 39.9MB in the beginning and 42.1MB in the end (delta: -2.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 35.15ms. Allocated memory is still 86.0MB. Free memory was 42.1MB in the beginning and 40.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9s, 33 PlacesBefore, 14 PlacesAfterwards, 29 TransitionsBefore, 10 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 4 FixpointIterations, 20 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 29 TotalNumberOfCompositions, 53 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 26, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 53, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 26, unknown conditional: 0, unknown unconditional: 26] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 922]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 41 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 15 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:58:25,664 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