./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.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/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.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 7caf6351b1a5a890c894e0893d4dbb37232313b5d1e741d22c5bb5a1a3e463fe --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 03:05:45,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:05:45,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:05:45,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:05:45,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:05:45,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:05:45,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:05:45,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:05:45,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:05:45,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:05:45,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:05:45,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:05:45,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:05:45,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:05:45,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:05:45,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:05:45,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:05:45,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:05:45,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:05:45,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:05:45,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:05:45,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:05:45,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:05:45,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:05:45,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:05:45,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:05:45,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:05:45,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:05:45,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:05:45,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:05:45,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:05:45,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:05:45,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:05:45,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:05:45,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:05:45,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:05:45,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:05:45,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:05:45,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:05:45,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:05:45,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:05:45,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:05:45,983 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:05:45,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:05:45,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:05:45,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:05:45,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:05:45,986 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:05:45,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:05:45,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:05:45,987 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:05:45,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:05:45,988 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:05:45,988 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:05:45,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:05:45,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:05:45,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:05:45,989 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:05:45,989 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:05:45,990 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:05:45,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:05:45,990 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:05:45,990 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:05:45,990 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:05:45,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:05:45,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:05:45,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:05:45,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:05:45,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:05:45,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:05:45,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:05:45,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:05:45,992 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:05:45,993 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:05:45,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:05:45,993 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:05:45,993 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7caf6351b1a5a890c894e0893d4dbb37232313b5d1e741d22c5bb5a1a3e463fe Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:05:46,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:05:46,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:05:46,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:05:46,342 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:05:46,342 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:05:46,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:05:47,568 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:05:47,818 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:05:47,819 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:05:47,827 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a86aa48/2bb9525ce5784ac4b2f234247ac9ca03/FLAG4d9ce5c7f [2023-08-30 03:05:47,839 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a86aa48/2bb9525ce5784ac4b2f234247ac9ca03 [2023-08-30 03:05:47,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:05:47,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:05:47,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:05:47,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:05:47,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:05:47,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:05:47" (1/1) ... [2023-08-30 03:05:47,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37cb792c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:47, skipping insertion in model container [2023-08-30 03:05:47,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:05:47" (1/1) ... [2023-08-30 03:05:47,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:05:47,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:05:48,000 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2023-08-30 03:05:48,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:05:48,149 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:05:48,169 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2023-08-30 03:05:48,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:05:48,265 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:05:48,265 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:05:48,271 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:05:48,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48 WrapperNode [2023-08-30 03:05:48,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:05:48,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:05:48,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:05:48,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:05:48,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,328 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-08-30 03:05:48,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:05:48,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:05:48,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:05:48,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:05:48,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:05:48,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:05:48,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:05:48,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:05:48,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (1/1) ... [2023-08-30 03:05:48,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:05:48,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:05:48,407 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 03:05:48,429 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 03:05:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:05:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:05:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:05:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:05:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:05:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:05:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:05:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:05:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:05:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:05:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:05:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:05:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:05:48,447 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 03:05:48,633 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:05:48,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:05:48,818 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:05:48,823 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:05:48,823 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:05:48,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:05:48 BoogieIcfgContainer [2023-08-30 03:05:48,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:05:48,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:05:48,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:05:48,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:05:48,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:05:47" (1/3) ... [2023-08-30 03:05:48,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a01d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:05:48, skipping insertion in model container [2023-08-30 03:05:48,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:05:48" (2/3) ... [2023-08-30 03:05:48,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a01d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:05:48, skipping insertion in model container [2023-08-30 03:05:48,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:05:48" (3/3) ... [2023-08-30 03:05:48,833 INFO L112 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:05:48,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:05:48,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:05:48,848 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:05:48,903 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:05:48,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 76 transitions, 162 flow [2023-08-30 03:05:48,969 INFO L130 PetriNetUnfolder]: 2/74 cut-off events. [2023-08-30 03:05:48,970 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:05:48,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 74 events. 2/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-30 03:05:48,974 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 76 transitions, 162 flow [2023-08-30 03:05:48,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 70 transitions, 146 flow [2023-08-30 03:05:48,980 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:05:48,989 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 70 transitions, 146 flow [2023-08-30 03:05:48,991 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 70 transitions, 146 flow [2023-08-30 03:05:48,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 70 transitions, 146 flow [2023-08-30 03:05:49,008 INFO L130 PetriNetUnfolder]: 2/70 cut-off events. [2023-08-30 03:05:49,008 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:05:49,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-30 03:05:49,010 INFO L119 LiptonReduction]: Number of co-enabled transitions 780 [2023-08-30 03:05:51,113 INFO L134 LiptonReduction]: Checked pairs total: 1584 [2023-08-30 03:05:51,114 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-08-30 03:05:51,127 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:05:51,133 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;@2655a04e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:05:51,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 03:05:51,134 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:05:51,134 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:05:51,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:05:51,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:05:51,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:05:51,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:05:51,140 INFO L85 PathProgramCache]: Analyzing trace with hash 280, now seen corresponding path program 1 times [2023-08-30 03:05:51,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:05:51,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637751885] [2023-08-30 03:05:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:05:51,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:05:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:05:51,244 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 03:05:51,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:05:51,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637751885] [2023-08-30 03:05:51,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637751885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:05:51,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:05:51,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:05:51,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546916121] [2023-08-30 03:05:51,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:05:51,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:05:51,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:05:51,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:05:51,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:05:51,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 152 [2023-08-30 03:05:51,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 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 03:05:51,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:05:51,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 152 [2023-08-30 03:05:51,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:05:51,342 INFO L130 PetriNetUnfolder]: 56/112 cut-off events. [2023-08-30 03:05:51,343 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:05:51,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 112 events. 56/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 384 event pairs, 56 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 222. Up to 109 conditions per place. [2023-08-30 03:05:51,347 INFO L137 encePairwiseOnDemand]: 147/152 looper letters, 12 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2023-08-30 03:05:51,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 58 flow [2023-08-30 03:05:51,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:05:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:05:51,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2023-08-30 03:05:51,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5230263157894737 [2023-08-30 03:05:51,360 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 159 transitions. [2023-08-30 03:05:51,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 159 transitions. [2023-08-30 03:05:51,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:05:51,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 159 transitions. [2023-08-30 03:05:51,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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 03:05:51,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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 03:05:51,374 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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 03:05:51,376 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 44 flow. Second operand 2 states and 159 transitions. [2023-08-30 03:05:51,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 58 flow [2023-08-30 03:05:51,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:05:51,379 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 32 flow [2023-08-30 03:05:51,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-08-30 03:05:51,387 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -5 predicate places. [2023-08-30 03:05:51,387 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 32 flow [2023-08-30 03:05:51,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 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 03:05:51,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:05:51,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:05:51,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:05:51,388 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:05:51,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:05:51,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1158935944, now seen corresponding path program 1 times [2023-08-30 03:05:51,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:05:51,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447537063] [2023-08-30 03:05:51,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:05:51,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:05:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:05:51,785 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 03:05:51,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:05:51,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447537063] [2023-08-30 03:05:51,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447537063] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:05:51,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:05:51,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:05:51,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080528149] [2023-08-30 03:05:51,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:05:51,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:05:51,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:05:51,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:05:51,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:05:51,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 152 [2023-08-30 03:05:51,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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 03:05:51,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:05:51,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 152 [2023-08-30 03:05:51,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:05:51,890 INFO L130 PetriNetUnfolder]: 64/137 cut-off events. [2023-08-30 03:05:51,890 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:05:51,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 137 events. 64/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 523 event pairs, 22 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 268. Up to 77 conditions per place. [2023-08-30 03:05:51,893 INFO L137 encePairwiseOnDemand]: 146/152 looper letters, 19 selfloop transitions, 7 changer transitions 0/28 dead transitions. [2023-08-30 03:05:51,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 28 transitions, 114 flow [2023-08-30 03:05:51,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:05:51,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:05:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 358 transitions. [2023-08-30 03:05:51,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4710526315789474 [2023-08-30 03:05:51,900 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 358 transitions. [2023-08-30 03:05:51,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 358 transitions. [2023-08-30 03:05:51,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:05:51,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 358 transitions. [2023-08-30 03:05:51,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 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 03:05:51,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 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 03:05:51,908 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 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 03:05:51,908 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 32 flow. Second operand 5 states and 358 transitions. [2023-08-30 03:05:51,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 28 transitions, 114 flow [2023-08-30 03:05:51,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:05:51,909 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 88 flow [2023-08-30 03:05:51,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=88, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2023-08-30 03:05:51,910 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-08-30 03:05:51,911 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 88 flow [2023-08-30 03:05:51,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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 03:05:51,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:05:51,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:05:51,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:05:51,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:05:51,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:05:51,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1567275648, now seen corresponding path program 1 times [2023-08-30 03:05:51,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:05:51,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692206515] [2023-08-30 03:05:51,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:05:51,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:05:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:05:52,191 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 03:05:52,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:05:52,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692206515] [2023-08-30 03:05:52,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692206515] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:05:52,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:05:52,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:05:52,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947606163] [2023-08-30 03:05:52,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:05:52,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:05:52,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:05:52,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:05:52,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:05:52,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 152 [2023-08-30 03:05:52,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 03:05:52,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:05:52,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 152 [2023-08-30 03:05:52,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:05:52,314 INFO L130 PetriNetUnfolder]: 44/104 cut-off events. [2023-08-30 03:05:52,314 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2023-08-30 03:05:52,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 104 events. 44/104 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 382 event pairs, 30 based on Foata normal form. 17/120 useless extension candidates. Maximal degree in co-relation 290. Up to 90 conditions per place. [2023-08-30 03:05:52,315 INFO L137 encePairwiseOnDemand]: 149/152 looper letters, 13 selfloop transitions, 2 changer transitions 3/20 dead transitions. [2023-08-30 03:05:52,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 122 flow [2023-08-30 03:05:52,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:05:52,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:05:52,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 254 transitions. [2023-08-30 03:05:52,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41776315789473684 [2023-08-30 03:05:52,317 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 254 transitions. [2023-08-30 03:05:52,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 254 transitions. [2023-08-30 03:05:52,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:05:52,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 254 transitions. [2023-08-30 03:05:52,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 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 03:05:52,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 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 03:05:52,320 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 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 03:05:52,321 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 88 flow. Second operand 4 states and 254 transitions. [2023-08-30 03:05:52,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 122 flow [2023-08-30 03:05:52,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:05:52,323 INFO L231 Difference]: Finished difference. Result has 28 places, 15 transitions, 58 flow [2023-08-30 03:05:52,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=28, PETRI_TRANSITIONS=15} [2023-08-30 03:05:52,324 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-08-30 03:05:52,324 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 15 transitions, 58 flow [2023-08-30 03:05:52,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 03:05:52,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:05:52,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:05:52,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:05:52,325 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:05:52,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:05:52,326 INFO L85 PathProgramCache]: Analyzing trace with hash 760125829, now seen corresponding path program 1 times [2023-08-30 03:05:52,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:05:52,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260854634] [2023-08-30 03:05:52,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:05:52,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:05:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:05:52,448 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 03:05:52,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:05:52,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260854634] [2023-08-30 03:05:52,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260854634] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:05:52,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:05:52,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:05:52,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461077538] [2023-08-30 03:05:52,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:05:52,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:05:52,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:05:52,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:05:52,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:05:52,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 152 [2023-08-30 03:05:52,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 15 transitions, 58 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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 03:05:52,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:05:52,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 152 [2023-08-30 03:05:52,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:05:52,567 INFO L130 PetriNetUnfolder]: 78/170 cut-off events. [2023-08-30 03:05:52,568 INFO L131 PetriNetUnfolder]: For 121/121 co-relation queries the response was YES. [2023-08-30 03:05:52,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 170 events. 78/170 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 761 event pairs, 8 based on Foata normal form. 14/183 useless extension candidates. Maximal degree in co-relation 437. Up to 59 conditions per place. [2023-08-30 03:05:52,569 INFO L137 encePairwiseOnDemand]: 146/152 looper letters, 20 selfloop transitions, 6 changer transitions 12/39 dead transitions. [2023-08-30 03:05:52,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 39 transitions, 208 flow [2023-08-30 03:05:52,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 03:05:52,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 03:05:52,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 617 transitions. [2023-08-30 03:05:52,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4510233918128655 [2023-08-30 03:05:52,573 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 617 transitions. [2023-08-30 03:05:52,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 617 transitions. [2023-08-30 03:05:52,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:05:52,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 617 transitions. [2023-08-30 03:05:52,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 68.55555555555556) internal successors, (617), 9 states have internal predecessors, (617), 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 03:05:52,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 152.0) internal successors, (1520), 10 states have internal predecessors, (1520), 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 03:05:52,578 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 152.0) internal successors, (1520), 10 states have internal predecessors, (1520), 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 03:05:52,579 INFO L175 Difference]: Start difference. First operand has 28 places, 15 transitions, 58 flow. Second operand 9 states and 617 transitions. [2023-08-30 03:05:52,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 39 transitions, 208 flow [2023-08-30 03:05:52,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 39 transitions, 193 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-30 03:05:52,581 INFO L231 Difference]: Finished difference. Result has 38 places, 17 transitions, 95 flow [2023-08-30 03:05:52,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=95, PETRI_PLACES=38, PETRI_TRANSITIONS=17} [2023-08-30 03:05:52,581 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 13 predicate places. [2023-08-30 03:05:52,582 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 17 transitions, 95 flow [2023-08-30 03:05:52,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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 03:05:52,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:05:52,582 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:05:52,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:05:52,583 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:05:52,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:05:52,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1567238977, now seen corresponding path program 1 times [2023-08-30 03:05:52,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:05:52,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305725574] [2023-08-30 03:05:52,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:05:52,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:05:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:05:52,701 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 03:05:52,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:05:52,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305725574] [2023-08-30 03:05:52,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305725574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:05:52,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:05:52,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:05:52,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103849081] [2023-08-30 03:05:52,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:05:52,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:05:52,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:05:52,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:05:52,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:05:52,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 152 [2023-08-30 03:05:52,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 17 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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 03:05:52,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:05:52,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 152 [2023-08-30 03:05:52,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:05:52,769 INFO L130 PetriNetUnfolder]: 38/106 cut-off events. [2023-08-30 03:05:52,770 INFO L131 PetriNetUnfolder]: For 262/263 co-relation queries the response was YES. [2023-08-30 03:05:52,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 106 events. 38/106 cut-off events. For 262/263 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 430 event pairs, 17 based on Foata normal form. 11/115 useless extension candidates. Maximal degree in co-relation 314. Up to 65 conditions per place. [2023-08-30 03:05:52,773 INFO L137 encePairwiseOnDemand]: 148/152 looper letters, 14 selfloop transitions, 3 changer transitions 8/27 dead transitions. [2023-08-30 03:05:52,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 27 transitions, 186 flow [2023-08-30 03:05:52,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:05:52,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:05:52,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 353 transitions. [2023-08-30 03:05:52,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4644736842105263 [2023-08-30 03:05:52,775 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 353 transitions. [2023-08-30 03:05:52,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 353 transitions. [2023-08-30 03:05:52,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:05:52,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 353 transitions. [2023-08-30 03:05:52,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 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 03:05:52,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 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 03:05:52,779 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 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 03:05:52,779 INFO L175 Difference]: Start difference. First operand has 38 places, 17 transitions, 95 flow. Second operand 5 states and 353 transitions. [2023-08-30 03:05:52,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 27 transitions, 186 flow [2023-08-30 03:05:52,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 27 transitions, 168 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-08-30 03:05:52,783 INFO L231 Difference]: Finished difference. Result has 36 places, 15 transitions, 82 flow [2023-08-30 03:05:52,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=82, PETRI_PLACES=36, PETRI_TRANSITIONS=15} [2023-08-30 03:05:52,786 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 11 predicate places. [2023-08-30 03:05:52,786 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 15 transitions, 82 flow [2023-08-30 03:05:52,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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 03:05:52,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:05:52,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:05:52,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:05:52,787 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:05:52,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:05:52,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1340088604, now seen corresponding path program 1 times [2023-08-30 03:05:52,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:05:52,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060167684] [2023-08-30 03:05:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:05:52,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:05:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:05:52,925 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 03:05:52,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:05:52,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060167684] [2023-08-30 03:05:52,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060167684] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:05:52,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:05:52,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:05:52,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774130211] [2023-08-30 03:05:52,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:05:52,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:05:52,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:05:52,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:05:52,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:05:52,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 152 [2023-08-30 03:05:52,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 15 transitions, 82 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 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) [2023-08-30 03:05:52,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:05:52,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 152 [2023-08-30 03:05:52,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:05:53,006 INFO L130 PetriNetUnfolder]: 44/103 cut-off events. [2023-08-30 03:05:53,006 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2023-08-30 03:05:53,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 103 events. 44/103 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 351 event pairs, 15 based on Foata normal form. 6/108 useless extension candidates. Maximal degree in co-relation 320. Up to 33 conditions per place. [2023-08-30 03:05:53,007 INFO L137 encePairwiseOnDemand]: 147/152 looper letters, 12 selfloop transitions, 3 changer transitions 10/26 dead transitions. [2023-08-30 03:05:53,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 172 flow [2023-08-30 03:05:53,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:05:53,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:05:53,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2023-08-30 03:05:53,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44956140350877194 [2023-08-30 03:05:53,014 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 410 transitions. [2023-08-30 03:05:53,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 410 transitions. [2023-08-30 03:05:53,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:05:53,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 410 transitions. [2023-08-30 03:05:53,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 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 03:05:53,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:05:53,018 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:05:53,019 INFO L175 Difference]: Start difference. First operand has 36 places, 15 transitions, 82 flow. Second operand 6 states and 410 transitions. [2023-08-30 03:05:53,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 172 flow [2023-08-30 03:05:53,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 147 flow, removed 6 selfloop flow, removed 8 redundant places. [2023-08-30 03:05:53,023 INFO L231 Difference]: Finished difference. Result has 34 places, 13 transitions, 69 flow [2023-08-30 03:05:53,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=34, PETRI_TRANSITIONS=13} [2023-08-30 03:05:53,025 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 9 predicate places. [2023-08-30 03:05:53,025 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 13 transitions, 69 flow [2023-08-30 03:05:53,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 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) [2023-08-30 03:05:53,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:05:53,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:05:53,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:05:53,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:05:53,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:05:53,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1601789248, now seen corresponding path program 1 times [2023-08-30 03:05:53,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:05:53,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069278857] [2023-08-30 03:05:53,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:05:53,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:05:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:05:53,169 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 03:05:53,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:05:53,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069278857] [2023-08-30 03:05:53,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069278857] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:05:53,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:05:53,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:05:53,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660694151] [2023-08-30 03:05:53,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:05:53,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:05:53,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:05:53,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:05:53,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:05:53,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 152 [2023-08-30 03:05:53,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 13 transitions, 69 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 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) [2023-08-30 03:05:53,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:05:53,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 152 [2023-08-30 03:05:53,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:05:53,238 INFO L130 PetriNetUnfolder]: 21/49 cut-off events. [2023-08-30 03:05:53,239 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2023-08-30 03:05:53,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 49 events. 21/49 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 100 event pairs, 6 based on Foata normal form. 6/53 useless extension candidates. Maximal degree in co-relation 161. Up to 19 conditions per place. [2023-08-30 03:05:53,239 INFO L137 encePairwiseOnDemand]: 148/152 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-08-30 03:05:53,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 19 transitions, 123 flow [2023-08-30 03:05:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:05:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:05:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 404 transitions. [2023-08-30 03:05:53,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44298245614035087 [2023-08-30 03:05:53,242 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 404 transitions. [2023-08-30 03:05:53,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 404 transitions. [2023-08-30 03:05:53,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:05:53,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 404 transitions. [2023-08-30 03:05:53,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 67.33333333333333) internal successors, (404), 6 states have internal predecessors, (404), 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 03:05:53,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:05:53,245 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 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 03:05:53,245 INFO L175 Difference]: Start difference. First operand has 34 places, 13 transitions, 69 flow. Second operand 6 states and 404 transitions. [2023-08-30 03:05:53,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 19 transitions, 123 flow [2023-08-30 03:05:53,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 85 flow, removed 10 selfloop flow, removed 9 redundant places. [2023-08-30 03:05:53,246 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2023-08-30 03:05:53,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2023-08-30 03:05:53,247 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-08-30 03:05:53,247 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2023-08-30 03:05:53,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 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) [2023-08-30 03:05:53,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2023-08-30 03:05:53,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-30 03:05:53,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-30 03:05:53,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-08-30 03:05:53,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2023-08-30 03:05:53,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-08-30 03:05:53,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-08-30 03:05:53,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-08-30 03:05:53,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:05:53,256 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:05:53,259 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:05:53,259 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:05:53,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:05:53 BasicIcfg [2023-08-30 03:05:53,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:05:53,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:05:53,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:05:53,268 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:05:53,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:05:48" (3/4) ... [2023-08-30 03:05:53,271 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:05:53,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:05:53,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:05:53,279 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-30 03:05:53,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:05:53,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:05:53,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:05:53,310 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:05:53,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:05:53,310 INFO L158 Benchmark]: Toolchain (without parser) took 5468.22ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 49.2MB in the beginning and 51.3MB in the end (delta: -2.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-08-30 03:05:53,311 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 73.4MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:05:53,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.58ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.1MB in the beginning and 62.6MB in the end (delta: -13.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2023-08-30 03:05:53,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.95ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 60.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:05:53,312 INFO L158 Benchmark]: Boogie Preprocessor took 47.58ms. Allocated memory is still 88.1MB. Free memory was 60.5MB in the beginning and 59.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:05:53,312 INFO L158 Benchmark]: RCFGBuilder took 447.68ms. Allocated memory is still 88.1MB. Free memory was 58.9MB in the beginning and 45.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 03:05:53,313 INFO L158 Benchmark]: TraceAbstraction took 4439.59ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 45.2MB in the beginning and 54.5MB in the end (delta: -9.3MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-08-30 03:05:53,313 INFO L158 Benchmark]: Witness Printer took 42.62ms. Allocated memory is still 107.0MB. Free memory was 54.5MB in the beginning and 51.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:05:53,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 73.4MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.58ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.1MB in the beginning and 62.6MB in the end (delta: -13.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.95ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 60.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.58ms. Allocated memory is still 88.1MB. Free memory was 60.5MB in the beginning and 59.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.68ms. Allocated memory is still 88.1MB. Free memory was 58.9MB in the beginning and 45.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4439.59ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 45.2MB in the beginning and 54.5MB in the end (delta: -9.3MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Witness Printer took 42.62ms. Allocated memory is still 107.0MB. Free memory was 54.5MB in the beginning and 51.3MB in the end (delta: 3.1MB). 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: 2.1s, 75 PlacesBefore, 25 PlacesAfterwards, 70 TransitionsBefore, 19 TransitionsAfterwards, 780 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 1584 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 910, independent: 842, independent conditional: 0, independent unconditional: 842, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 458, independent: 441, independent conditional: 0, independent unconditional: 441, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 910, independent: 401, independent conditional: 0, independent unconditional: 401, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 458, unknown conditional: 0, unknown unconditional: 458] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 758]: 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 5 procedures, 91 locations, 8 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: 4.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 265 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 393 IncrementalHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 33 mSDtfsCounter, 393 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=4, InterpolantAutomatonStates: 37, 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, 1.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:05:53,335 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