./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_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 5fb05d1d9f477ac46601c94c33a401c10a8ea916dae173fdeb0112a4de2b3b31 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:24:54,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:24:54,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:24:54,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:24:54,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:24:54,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:24:54,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:24:54,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:24:54,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:24:54,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:24:54,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:24:54,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:24:54,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:24:54,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:24:54,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:24:54,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:24:54,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:24:54,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:24:54,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:24:54,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:24:54,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:24:54,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:24:54,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:24:54,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:24:54,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:24:54,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:24:54,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:24:54,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:24:54,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:24:54,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:24:54,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:24:54,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:24:54,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:24:54,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:24:54,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:24:54,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:24:54,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:24:54,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:24:54,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:24:54,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:24:54,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:24:54,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 00:24:54,809 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:24:54,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:24:54,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:24:54,811 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:24:54,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:24:54,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:24:54,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:24:54,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:24:54,813 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:24:54,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:24:54,814 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:24:54,814 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:24:54,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:24:54,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:24:54,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:24:54,815 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:24:54,815 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:24:54,816 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:24:54,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:24:54,816 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:24:54,816 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:24:54,816 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:24:54,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:24:54,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:24:54,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:24:54,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:24:54,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:24:54,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:24:54,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 00:24:54,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 00:24:54,818 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:24:54,818 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:24:54,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:24:54,819 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:24:54,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fb05d1d9f477ac46601c94c33a401c10a8ea916dae173fdeb0112a4de2b3b31 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:24:55,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:24:55,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:24:55,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:24:55,160 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:24:55,161 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:24:55,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i [2023-09-01 00:24:56,329 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:24:56,570 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:24:56,571 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i [2023-09-01 00:24:56,594 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f5ef4856/971d6eceed87478fbb69e85bbd3ee097/FLAG7ad955269 [2023-09-01 00:24:56,607 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f5ef4856/971d6eceed87478fbb69e85bbd3ee097 [2023-09-01 00:24:56,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:24:56,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:24:56,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:24:56,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:24:56,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:24:56,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:24:56" (1/1) ... [2023-09-01 00:24:56,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e869cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:56, skipping insertion in model container [2023-09-01 00:24:56,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:24:56" (1/1) ... [2023-09-01 00:24:56,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:24:56,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:24:56,795 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_37-traces-ex-4_true.i[1088,1101] [2023-09-01 00:24:56,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:24:56,966 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:24:57,000 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_37-traces-ex-4_true.i[1088,1101] [2023-09-01 00:24:57,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:24:57,089 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:24:57,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57 WrapperNode [2023-09-01 00:24:57,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:24:57,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:24:57,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:24:57,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:24:57,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,148 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-09-01 00:24:57,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:24:57,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:24:57,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:24:57,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:24:57,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,186 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:24:57,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:24:57,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:24:57,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:24:57,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (1/1) ... [2023-09-01 00:24:57,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:24:57,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:24:57,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 00:24:57,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 00:24:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 00:24:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:24:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:24:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:24:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:24:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:24:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:24:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 00:24:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:24:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:24:57,269 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:24:57,401 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:24:57,403 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:24:57,569 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:24:57,575 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:24:57,576 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:24:57,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:24:57 BoogieIcfgContainer [2023-09-01 00:24:57,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:24:57,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:24:57,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:24:57,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:24:57,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:24:56" (1/3) ... [2023-09-01 00:24:57,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665444c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:24:57, skipping insertion in model container [2023-09-01 00:24:57,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:57" (2/3) ... [2023-09-01 00:24:57,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665444c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:24:57, skipping insertion in model container [2023-09-01 00:24:57,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:24:57" (3/3) ... [2023-09-01 00:24:57,585 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_37-traces-ex-4_true.i [2023-09-01 00:24:57,603 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:24:57,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 00:24:57,603 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:24:57,683 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 00:24:57,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 147 flow [2023-09-01 00:24:57,790 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2023-09-01 00:24:57,790 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:57,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-09-01 00:24:57,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 147 flow [2023-09-01 00:24:57,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 66 transitions, 135 flow [2023-09-01 00:24:57,803 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:24:57,822 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions, 135 flow [2023-09-01 00:24:57,825 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 66 transitions, 135 flow [2023-09-01 00:24:57,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 135 flow [2023-09-01 00:24:57,858 INFO L130 PetriNetUnfolder]: 1/66 cut-off events. [2023-09-01 00:24:57,861 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:57,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 66 events. 1/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2023-09-01 00:24:57,862 INFO L119 LiptonReduction]: Number of co-enabled transitions 560 [2023-09-01 00:25:00,279 INFO L134 LiptonReduction]: Checked pairs total: 1986 [2023-09-01 00:25:00,280 INFO L136 LiptonReduction]: Total number of compositions: 60 [2023-09-01 00:25:00,291 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:25:00,297 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;@c96897e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:25:00,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-09-01 00:25:00,298 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 00:25:00,298 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:25:00,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:25:00,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:25:00,299 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-09-01 00:25:00,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:25:00,304 INFO L85 PathProgramCache]: Analyzing trace with hash 251, now seen corresponding path program 1 times [2023-09-01 00:25:00,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:25:00,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309620908] [2023-09-01 00:25:00,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:25:00,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:25:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:25:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:25:00,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:25:00,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309620908] [2023-09-01 00:25:00,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309620908] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:25:00,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:25:00,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:25:00,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748283024] [2023-09-01 00:25:00,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:25:00,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:25:00,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:25:00,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:25:00,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:25:00,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 131 [2023-09-01 00:25:00,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 45 flow. Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:25:00,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 131 [2023-09-01 00:25:00,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:25:00,493 INFO L130 PetriNetUnfolder]: 20/73 cut-off events. [2023-09-01 00:25:00,493 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:25:00,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 73 events. 20/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 220 event pairs, 20 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 120. Up to 52 conditions per place. [2023-09-01 00:25:00,496 INFO L137 encePairwiseOnDemand]: 128/131 looper letters, 11 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2023-09-01 00:25:00,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 17 transitions, 59 flow [2023-09-01 00:25:00,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:25:00,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:25:00,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2023-09-01 00:25:00,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5725190839694656 [2023-09-01 00:25:00,510 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 150 transitions. [2023-09-01 00:25:00,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 150 transitions. [2023-09-01 00:25:00,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:25:00,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 150 transitions. [2023-09-01 00:25:00,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,524 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,526 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 45 flow. Second operand 2 states and 150 transitions. [2023-09-01 00:25:00,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 17 transitions, 59 flow [2023-09-01 00:25:00,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 00:25:00,530 INFO L231 Difference]: Finished difference. Result has 21 places, 17 transitions, 36 flow [2023-09-01 00:25:00,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=36, PETRI_PLACES=21, PETRI_TRANSITIONS=17} [2023-09-01 00:25:00,535 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2023-09-01 00:25:00,536 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 17 transitions, 36 flow [2023-09-01 00:25:00,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:25:00,536 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 00:25:00,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 00:25:00,537 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-09-01 00:25:00,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:25:00,545 INFO L85 PathProgramCache]: Analyzing trace with hash 237749382, now seen corresponding path program 1 times [2023-09-01 00:25:00,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:25:00,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722530866] [2023-09-01 00:25:00,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:25:00,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:25:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:25:00,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:25:00,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:25:00,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722530866] [2023-09-01 00:25:00,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722530866] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:25:00,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:25:00,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:25:00,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006563210] [2023-09-01 00:25:00,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:25:00,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:25:00,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:25:00,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:25:00,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:25:00,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 131 [2023-09-01 00:25:00,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:25:00,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 131 [2023-09-01 00:25:00,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:25:00,860 INFO L130 PetriNetUnfolder]: 27/92 cut-off events. [2023-09-01 00:25:00,861 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:25:00,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 92 events. 27/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 317 event pairs, 17 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 165. Up to 52 conditions per place. [2023-09-01 00:25:00,862 INFO L137 encePairwiseOnDemand]: 126/131 looper letters, 15 selfloop transitions, 4 changer transitions 0/23 dead transitions. [2023-09-01 00:25:00,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 23 transitions, 86 flow [2023-09-01 00:25:00,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:25:00,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:25:00,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2023-09-01 00:25:00,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5470737913486005 [2023-09-01 00:25:00,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2023-09-01 00:25:00,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2023-09-01 00:25:00,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:25:00,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2023-09-01 00:25:00,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,867 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 36 flow. Second operand 3 states and 215 transitions. [2023-09-01 00:25:00,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 23 transitions, 86 flow [2023-09-01 00:25:00,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 23 transitions, 86 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 00:25:00,868 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 62 flow [2023-09-01 00:25:00,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-09-01 00:25:00,869 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2023-09-01 00:25:00,869 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 62 flow [2023-09-01 00:25:00,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:25:00,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:25:00,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 00:25:00,870 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-09-01 00:25:00,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:25:00,871 INFO L85 PathProgramCache]: Analyzing trace with hash 387980318, now seen corresponding path program 1 times [2023-09-01 00:25:00,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:25:00,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130037520] [2023-09-01 00:25:00,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:25:00,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:25:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:25:00,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:25:00,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:25:00,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130037520] [2023-09-01 00:25:00,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130037520] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:25:00,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:25:00,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 00:25:00,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772463536] [2023-09-01 00:25:00,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:25:00,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:25:00,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:25:00,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:25:00,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:25:00,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 131 [2023-09-01 00:25:00,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:00,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:25:00,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 131 [2023-09-01 00:25:00,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:25:01,027 INFO L130 PetriNetUnfolder]: 36/109 cut-off events. [2023-09-01 00:25:01,028 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-09-01 00:25:01,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 109 events. 36/109 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 394 event pairs, 14 based on Foata normal form. 5/113 useless extension candidates. Maximal degree in co-relation 242. Up to 67 conditions per place. [2023-09-01 00:25:01,029 INFO L137 encePairwiseOnDemand]: 124/131 looper letters, 19 selfloop transitions, 7 changer transitions 0/29 dead transitions. [2023-09-01 00:25:01,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 136 flow [2023-09-01 00:25:01,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:25:01,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:25:01,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2023-09-01 00:25:01,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5267175572519084 [2023-09-01 00:25:01,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2023-09-01 00:25:01,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2023-09-01 00:25:01,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:25:01,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2023-09-01 00:25:01,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,034 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 62 flow. Second operand 3 states and 207 transitions. [2023-09-01 00:25:01,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 136 flow [2023-09-01 00:25:01,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 29 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:25:01,036 INFO L231 Difference]: Finished difference. Result has 26 places, 24 transitions, 95 flow [2023-09-01 00:25:01,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=54, 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=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=26, PETRI_TRANSITIONS=24} [2023-09-01 00:25:01,037 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2023-09-01 00:25:01,037 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 24 transitions, 95 flow [2023-09-01 00:25:01,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:25:01,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:25:01,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 00:25:01,038 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-09-01 00:25:01,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:25:01,038 INFO L85 PathProgramCache]: Analyzing trace with hash 390696310, now seen corresponding path program 1 times [2023-09-01 00:25:01,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:25:01,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706556211] [2023-09-01 00:25:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:25:01,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:25:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:25:01,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:25:01,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:25:01,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706556211] [2023-09-01 00:25:01,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706556211] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:25:01,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:25:01,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:25:01,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660164788] [2023-09-01 00:25:01,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:25:01,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:25:01,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:25:01,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:25:01,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:25:01,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 131 [2023-09-01 00:25:01,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 24 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:25:01,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 131 [2023-09-01 00:25:01,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:25:01,253 INFO L130 PetriNetUnfolder]: 19/78 cut-off events. [2023-09-01 00:25:01,253 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-09-01 00:25:01,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 78 events. 19/78 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 264 event pairs, 12 based on Foata normal form. 10/84 useless extension candidates. Maximal degree in co-relation 202. Up to 44 conditions per place. [2023-09-01 00:25:01,256 INFO L137 encePairwiseOnDemand]: 129/131 looper letters, 8 selfloop transitions, 1 changer transitions 10/23 dead transitions. [2023-09-01 00:25:01,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 117 flow [2023-09-01 00:25:01,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:25:01,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:25:01,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2023-09-01 00:25:01,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5165394402035624 [2023-09-01 00:25:01,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 203 transitions. [2023-09-01 00:25:01,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 203 transitions. [2023-09-01 00:25:01,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:25:01,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 203 transitions. [2023-09-01 00:25:01,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,265 INFO L175 Difference]: Start difference. First operand has 26 places, 24 transitions, 95 flow. Second operand 3 states and 203 transitions. [2023-09-01 00:25:01,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 117 flow [2023-09-01 00:25:01,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 00:25:01,271 INFO L231 Difference]: Finished difference. Result has 26 places, 13 transitions, 48 flow [2023-09-01 00:25:01,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=26, PETRI_TRANSITIONS=13} [2023-09-01 00:25:01,272 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2023-09-01 00:25:01,273 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 13 transitions, 48 flow [2023-09-01 00:25:01,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:25:01,273 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:25:01,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 00:25:01,274 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-09-01 00:25:01,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:25:01,275 INFO L85 PathProgramCache]: Analyzing trace with hash -133523567, now seen corresponding path program 1 times [2023-09-01 00:25:01,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:25:01,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915875358] [2023-09-01 00:25:01,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:25:01,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:25:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:25:01,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:25:01,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:25:01,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915875358] [2023-09-01 00:25:01,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915875358] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:25:01,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:25:01,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 00:25:01,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097201525] [2023-09-01 00:25:01,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:25:01,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 00:25:01,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:25:01,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 00:25:01,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 00:25:01,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 131 [2023-09-01 00:25:01,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 13 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:25:01,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 131 [2023-09-01 00:25:01,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:25:01,477 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-09-01 00:25:01,477 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 00:25:01,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 10 events. 0/10 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 2/12 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-09-01 00:25:01,478 INFO L137 encePairwiseOnDemand]: 128/131 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-09-01 00:25:01,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 10 transitions, 50 flow [2023-09-01 00:25:01,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:25:01,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:25:01,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 260 transitions. [2023-09-01 00:25:01,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4961832061068702 [2023-09-01 00:25:01,479 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 260 transitions. [2023-09-01 00:25:01,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 260 transitions. [2023-09-01 00:25:01,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:25:01,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 260 transitions. [2023-09-01 00:25:01,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,482 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,482 INFO L175 Difference]: Start difference. First operand has 26 places, 13 transitions, 48 flow. Second operand 4 states and 260 transitions. [2023-09-01 00:25:01,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 10 transitions, 50 flow [2023-09-01 00:25:01,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 10 transitions, 40 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 00:25:01,483 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-09-01 00:25:01,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-09-01 00:25:01,484 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -5 predicate places. [2023-09-01 00:25:01,484 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-09-01 00:25:01,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:25:01,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2023-09-01 00:25:01,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-09-01 00:25:01,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2023-09-01 00:25:01,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-09-01 00:25:01,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-09-01 00:25:01,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 00:25:01,488 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 00:25:01,491 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:25:01,491 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:25:01,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:25:01 BasicIcfg [2023-09-01 00:25:01,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:25:01,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:25:01,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:25:01,495 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:25:01,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:24:57" (3/4) ... [2023-09-01 00:25:01,497 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 00:25:01,503 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 00:25:01,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-09-01 00:25:01,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 00:25:01,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 00:25:01,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 00:25:01,532 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 00:25:01,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:25:01,533 INFO L158 Benchmark]: Toolchain (without parser) took 4920.42ms. Allocated memory was 62.9MB in the beginning and 94.4MB in the end (delta: 31.5MB). Free memory was 39.6MB in the beginning and 35.2MB in the end (delta: 4.4MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-09-01 00:25:01,533 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 52.4MB. Free memory was 30.9MB in the beginning and 30.8MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:25:01,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.70ms. Allocated memory is still 62.9MB. Free memory was 39.3MB in the beginning and 35.6MB in the end (delta: 3.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-09-01 00:25:01,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.98ms. Allocated memory is still 62.9MB. Free memory was 35.4MB in the beginning and 33.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:25:01,534 INFO L158 Benchmark]: Boogie Preprocessor took 45.89ms. Allocated memory is still 62.9MB. Free memory was 33.4MB in the beginning and 32.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:25:01,535 INFO L158 Benchmark]: RCFGBuilder took 382.54ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 32.1MB in the beginning and 49.5MB in the end (delta: -17.4MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-09-01 00:25:01,535 INFO L158 Benchmark]: TraceAbstraction took 3914.47ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 48.9MB in the beginning and 38.1MB in the end (delta: 10.7MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2023-09-01 00:25:01,535 INFO L158 Benchmark]: Witness Printer took 38.22ms. Allocated memory is still 94.4MB. Free memory was 38.1MB in the beginning and 35.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 00:25:01,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 52.4MB. Free memory was 30.9MB in the beginning and 30.8MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.70ms. Allocated memory is still 62.9MB. Free memory was 39.3MB in the beginning and 35.6MB in the end (delta: 3.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.98ms. Allocated memory is still 62.9MB. Free memory was 35.4MB in the beginning and 33.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.89ms. Allocated memory is still 62.9MB. Free memory was 33.4MB in the beginning and 32.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.54ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 32.1MB in the beginning and 49.5MB in the end (delta: -17.4MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3914.47ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 48.9MB in the beginning and 38.1MB in the end (delta: 10.7MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Witness Printer took 38.22ms. Allocated memory is still 94.4MB. Free memory was 38.1MB in the beginning and 35.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 69 PlacesBefore, 24 PlacesAfterwards, 66 TransitionsBefore, 21 TransitionsAfterwards, 560 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 60 TotalNumberOfCompositions, 1986 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 691, independent: 525, independent conditional: 0, independent unconditional: 525, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 292, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 691, independent: 265, independent conditional: 0, independent unconditional: 265, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 292, unknown conditional: 0, unknown unconditional: 292] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 695]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 181 IncrementalHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 3 mSDtfsCounter, 181 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 0.5s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 151 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 00:25:01,554 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