./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c947ca303cec71cbb6edeb9f866ed53067014e89778e5c242eb251405d7ab484 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:08:49,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:08:49,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:08:49,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:08:49,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:08:49,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:08:49,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:08:49,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:08:49,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:08:49,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:08:49,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:08:49,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:08:49,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:08:49,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:08:49,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:08:49,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:08:49,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:08:49,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:08:49,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:08:49,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:08:49,972 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:08:49,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:08:49,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:08:49,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:08:49,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:08:49,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:08:49,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:08:49,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:08:49,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:08:49,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:08:49,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:08:49,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:08:49,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:08:49,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:08:49,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:08:49,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:08:49,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:08:49,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:08:49,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:08:49,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:08:49,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:08:49,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:08:49,992 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 22:08:50,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:08:50,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:08:50,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:08:50,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:08:50,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:08:50,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:08:50,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:08:50,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:08:50,012 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:08:50,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:08:50,012 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 22:08:50,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 22:08:50,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 22:08:50,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:08:50,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:08:50,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:08:50,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:08:50,013 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 22:08:50,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:08:50,013 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:08:50,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:08:50,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:08:50,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:08:50,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:08:50,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:08:50,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:08:50,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:08:50,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:08:50,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 22:08:50,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 22:08:50,016 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:08:50,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:08:50,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:08:50,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c947ca303cec71cbb6edeb9f866ed53067014e89778e5c242eb251405d7ab484 [2022-07-13 22:08:50,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:08:50,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:08:50,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:08:50,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:08:50,205 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:08:50,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2022-07-13 22:08:50,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b905b57c6/a40f1101e2e24faaaf6a8d5cf4e28e2b/FLAG1b0b86d52 [2022-07-13 22:08:50,617 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:08:50,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2022-07-13 22:08:50,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b905b57c6/a40f1101e2e24faaaf6a8d5cf4e28e2b/FLAG1b0b86d52 [2022-07-13 22:08:50,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b905b57c6/a40f1101e2e24faaaf6a8d5cf4e28e2b [2022-07-13 22:08:50,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:08:50,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:08:50,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:08:50,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:08:50,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:08:50,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a57ebf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50, skipping insertion in model container [2022-07-13 22:08:50,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:08:50,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:08:50,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c[3089,3102] [2022-07-13 22:08:50,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:08:50,786 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 22:08:50,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c[3089,3102] [2022-07-13 22:08:50,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:08:50,811 INFO L208 MainTranslator]: Completed translation [2022-07-13 22:08:50,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50 WrapperNode [2022-07-13 22:08:50,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 22:08:50,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 22:08:50,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 22:08:50,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 22:08:50,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,841 INFO L137 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 158 [2022-07-13 22:08:50,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 22:08:50,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 22:08:50,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 22:08:50,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 22:08:50,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 22:08:50,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 22:08:50,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 22:08:50,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 22:08:50,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (1/1) ... [2022-07-13 22:08:50,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:08:50,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:08:50,885 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) [2022-07-13 22:08:50,887 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 [2022-07-13 22:08:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 22:08:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-13 22:08:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-13 22:08:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-13 22:08:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-13 22:08:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-13 22:08:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-13 22:08:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 22:08:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 22:08:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 22:08:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-13 22:08:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-13 22:08:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 22:08:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 22:08:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 22:08:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 22:08:50,915 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 22:08:50,986 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 22:08:50,987 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 22:08:51,171 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 22:08:51,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 22:08:51,220 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 22:08:51,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:08:51 BoogieIcfgContainer [2022-07-13 22:08:51,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 22:08:51,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 22:08:51,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 22:08:51,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 22:08:51,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:08:50" (1/3) ... [2022-07-13 22:08:51,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322590f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:08:51, skipping insertion in model container [2022-07-13 22:08:51,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:08:50" (2/3) ... [2022-07-13 22:08:51,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322590f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:08:51, skipping insertion in model container [2022-07-13 22:08:51,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:08:51" (3/3) ... [2022-07-13 22:08:51,231 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2022-07-13 22:08:51,234 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 22:08:51,241 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 22:08:51,241 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 22:08:51,241 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 22:08:51,275 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-13 22:08:51,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 119 transitions, 262 flow [2022-07-13 22:08:51,335 INFO L129 PetriNetUnfolder]: 2/116 cut-off events. [2022-07-13 22:08:51,335 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-13 22:08:51,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 116 events. 2/116 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-07-13 22:08:51,338 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 119 transitions, 262 flow [2022-07-13 22:08:51,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 105 transitions, 228 flow [2022-07-13 22:08:51,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 22:08:51,352 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@29e762a9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@71d3a834 [2022-07-13 22:08:51,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-13 22:08:51,422 INFO L129 PetriNetUnfolder]: 2/104 cut-off events. [2022-07-13 22:08:51,429 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-13 22:08:51,429 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:08:51,430 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:08:51,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:08:51,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:08:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash -38046997, now seen corresponding path program 1 times [2022-07-13 22:08:51,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:08:51,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481486596] [2022-07-13 22:08:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:08:51,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:08:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:08:51,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:08:51,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:08:51,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481486596] [2022-07-13 22:08:51,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481486596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:08:51,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:08:51,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:08:51,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695854458] [2022-07-13 22:08:51,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:08:51,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:08:51,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:08:51,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:08:51,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:08:51,988 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 119 [2022-07-13 22:08:52,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 105 transitions, 228 flow. Second operand has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 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) [2022-07-13 22:08:52,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:08:52,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 119 [2022-07-13 22:08:52,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:08:52,451 INFO L129 PetriNetUnfolder]: 397/974 cut-off events. [2022-07-13 22:08:52,451 INFO L130 PetriNetUnfolder]: For 202/202 co-relation queries the response was YES. [2022-07-13 22:08:52,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1826 conditions, 974 events. 397/974 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5248 event pairs, 221 based on Foata normal form. 3/943 useless extension candidates. Maximal degree in co-relation 1373. Up to 311 conditions per place. [2022-07-13 22:08:52,461 INFO L132 encePairwiseOnDemand]: 103/119 looper letters, 47 selfloop transitions, 11 changer transitions 22/150 dead transitions. [2022-07-13 22:08:52,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 150 transitions, 502 flow [2022-07-13 22:08:52,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 22:08:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-07-13 22:08:52,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1080 transitions. [2022-07-13 22:08:52,479 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7563025210084033 [2022-07-13 22:08:52,479 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1080 transitions. [2022-07-13 22:08:52,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1080 transitions. [2022-07-13 22:08:52,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:08:52,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1080 transitions. [2022-07-13 22:08:52,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 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) [2022-07-13 22:08:52,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 119.0) internal successors, (1547), 13 states have internal predecessors, (1547), 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) [2022-07-13 22:08:52,500 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 119.0) internal successors, (1547), 13 states have internal predecessors, (1547), 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) [2022-07-13 22:08:52,502 INFO L186 Difference]: Start difference. First operand has 113 places, 105 transitions, 228 flow. Second operand 12 states and 1080 transitions. [2022-07-13 22:08:52,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 150 transitions, 502 flow [2022-07-13 22:08:52,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 150 transitions, 474 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-13 22:08:52,514 INFO L242 Difference]: Finished difference. Result has 122 places, 106 transitions, 257 flow [2022-07-13 22:08:52,515 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=257, PETRI_PLACES=122, PETRI_TRANSITIONS=106} [2022-07-13 22:08:52,518 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 9 predicate places. [2022-07-13 22:08:52,518 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 106 transitions, 257 flow [2022-07-13 22:08:52,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 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) [2022-07-13 22:08:52,519 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:08:52,519 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:08:52,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 22:08:52,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:08:52,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:08:52,521 INFO L85 PathProgramCache]: Analyzing trace with hash 150454403, now seen corresponding path program 2 times [2022-07-13 22:08:52,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:08:52,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196671933] [2022-07-13 22:08:52,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:08:52,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:08:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:08:52,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:08:52,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:08:52,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196671933] [2022-07-13 22:08:52,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196671933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:08:52,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:08:52,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:08:52,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949446845] [2022-07-13 22:08:52,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:08:52,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:08:52,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:08:52,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:08:52,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:08:52,776 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 119 [2022-07-13 22:08:52,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 106 transitions, 257 flow. Second operand has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 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) [2022-07-13 22:08:52,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:08:52,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 119 [2022-07-13 22:08:52,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:08:53,034 INFO L129 PetriNetUnfolder]: 355/957 cut-off events. [2022-07-13 22:08:53,034 INFO L130 PetriNetUnfolder]: For 175/175 co-relation queries the response was YES. [2022-07-13 22:08:53,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1809 conditions, 957 events. 355/957 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5559 event pairs, 117 based on Foata normal form. 1/928 useless extension candidates. Maximal degree in co-relation 1797. Up to 308 conditions per place. [2022-07-13 22:08:53,040 INFO L132 encePairwiseOnDemand]: 108/119 looper letters, 36 selfloop transitions, 9 changer transitions 27/142 dead transitions. [2022-07-13 22:08:53,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 142 transitions, 499 flow [2022-07-13 22:08:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:08:53,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-13 22:08:53,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 899 transitions. [2022-07-13 22:08:53,042 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7554621848739496 [2022-07-13 22:08:53,042 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 899 transitions. [2022-07-13 22:08:53,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 899 transitions. [2022-07-13 22:08:53,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:08:53,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 899 transitions. [2022-07-13 22:08:53,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 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) [2022-07-13 22:08:53,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 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) [2022-07-13 22:08:53,047 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 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) [2022-07-13 22:08:53,047 INFO L186 Difference]: Start difference. First operand has 122 places, 106 transitions, 257 flow. Second operand 10 states and 899 transitions. [2022-07-13 22:08:53,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 142 transitions, 499 flow [2022-07-13 22:08:53,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 142 transitions, 485 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-07-13 22:08:53,052 INFO L242 Difference]: Finished difference. Result has 124 places, 108 transitions, 294 flow [2022-07-13 22:08:53,053 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=124, PETRI_TRANSITIONS=108} [2022-07-13 22:08:53,053 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 11 predicate places. [2022-07-13 22:08:53,053 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 108 transitions, 294 flow [2022-07-13 22:08:53,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 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) [2022-07-13 22:08:53,054 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:08:53,054 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:08:53,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 22:08:53,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:08:53,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:08:53,057 INFO L85 PathProgramCache]: Analyzing trace with hash -63470323, now seen corresponding path program 3 times [2022-07-13 22:08:53,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:08:53,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715184119] [2022-07-13 22:08:53,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:08:53,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:08:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:08:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:08:53,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:08:53,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715184119] [2022-07-13 22:08:53,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715184119] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:08:53,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:08:53,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 22:08:53,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740377089] [2022-07-13 22:08:53,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:08:53,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:08:53,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:08:53,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:08:53,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:08:53,175 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-07-13 22:08:53,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 108 transitions, 294 flow. Second operand has 8 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 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) [2022-07-13 22:08:53,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:08:53,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-07-13 22:08:53,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:08:53,289 INFO L129 PetriNetUnfolder]: 164/549 cut-off events. [2022-07-13 22:08:53,290 INFO L130 PetriNetUnfolder]: For 159/160 co-relation queries the response was YES. [2022-07-13 22:08:53,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1093 conditions, 549 events. 164/549 cut-off events. For 159/160 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2702 event pairs, 19 based on Foata normal form. 5/531 useless extension candidates. Maximal degree in co-relation 1073. Up to 124 conditions per place. [2022-07-13 22:08:53,293 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 42 selfloop transitions, 21 changer transitions 0/142 dead transitions. [2022-07-13 22:08:53,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 142 transitions, 503 flow [2022-07-13 22:08:53,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:08:53,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-13 22:08:53,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 744 transitions. [2022-07-13 22:08:53,295 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7815126050420168 [2022-07-13 22:08:53,295 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 744 transitions. [2022-07-13 22:08:53,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 744 transitions. [2022-07-13 22:08:53,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:08:53,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 744 transitions. [2022-07-13 22:08:53,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 93.0) internal successors, (744), 8 states have internal predecessors, (744), 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) [2022-07-13 22:08:53,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 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) [2022-07-13 22:08:53,298 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 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) [2022-07-13 22:08:53,298 INFO L186 Difference]: Start difference. First operand has 124 places, 108 transitions, 294 flow. Second operand 8 states and 744 transitions. [2022-07-13 22:08:53,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 142 transitions, 503 flow [2022-07-13 22:08:53,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 142 transitions, 474 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-07-13 22:08:53,302 INFO L242 Difference]: Finished difference. Result has 120 places, 122 transitions, 350 flow [2022-07-13 22:08:53,302 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=350, PETRI_PLACES=120, PETRI_TRANSITIONS=122} [2022-07-13 22:08:53,303 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 7 predicate places. [2022-07-13 22:08:53,303 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 122 transitions, 350 flow [2022-07-13 22:08:53,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 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) [2022-07-13 22:08:53,303 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:08:53,303 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:08:53,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 22:08:53,304 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:08:53,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:08:53,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2087359051, now seen corresponding path program 4 times [2022-07-13 22:08:53,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:08:53,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952946773] [2022-07-13 22:08:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:08:53,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:08:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:08:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:08:53,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:08:53,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952946773] [2022-07-13 22:08:53,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952946773] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:08:53,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:08:53,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 22:08:53,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154170955] [2022-07-13 22:08:53,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:08:53,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:08:53,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:08:53,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:08:53,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:08:53,368 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-07-13 22:08:53,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 122 transitions, 350 flow. Second operand has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 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) [2022-07-13 22:08:53,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:08:53,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-07-13 22:08:53,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:08:53,505 INFO L129 PetriNetUnfolder]: 174/682 cut-off events. [2022-07-13 22:08:53,506 INFO L130 PetriNetUnfolder]: For 250/268 co-relation queries the response was YES. [2022-07-13 22:08:53,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 682 events. 174/682 cut-off events. For 250/268 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3885 event pairs, 47 based on Foata normal form. 24/680 useless extension candidates. Maximal degree in co-relation 721. Up to 120 conditions per place. [2022-07-13 22:08:53,509 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 46 selfloop transitions, 23 changer transitions 0/148 dead transitions. [2022-07-13 22:08:53,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 148 transitions, 576 flow [2022-07-13 22:08:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:08:53,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-13 22:08:53,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 653 transitions. [2022-07-13 22:08:53,510 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7839135654261705 [2022-07-13 22:08:53,511 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 653 transitions. [2022-07-13 22:08:53,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 653 transitions. [2022-07-13 22:08:53,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:08:53,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 653 transitions. [2022-07-13 22:08:53,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 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) [2022-07-13 22:08:53,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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) [2022-07-13 22:08:53,514 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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) [2022-07-13 22:08:53,514 INFO L186 Difference]: Start difference. First operand has 120 places, 122 transitions, 350 flow. Second operand 7 states and 653 transitions. [2022-07-13 22:08:53,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 148 transitions, 576 flow [2022-07-13 22:08:53,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 148 transitions, 568 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-13 22:08:53,517 INFO L242 Difference]: Finished difference. Result has 125 places, 133 transitions, 471 flow [2022-07-13 22:08:53,517 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=471, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2022-07-13 22:08:53,518 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 12 predicate places. [2022-07-13 22:08:53,518 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 471 flow [2022-07-13 22:08:53,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 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) [2022-07-13 22:08:53,518 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:08:53,518 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:08:53,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 22:08:53,519 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:08:53,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:08:53,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1741121809, now seen corresponding path program 5 times [2022-07-13 22:08:53,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:08:53,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485545185] [2022-07-13 22:08:53,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:08:53,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:08:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:08:53,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:08:53,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:08:53,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485545185] [2022-07-13 22:08:53,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485545185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:08:53,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:08:53,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 22:08:53,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935895878] [2022-07-13 22:08:53,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:08:53,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:08:53,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:08:53,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:08:53,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:08:53,599 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-07-13 22:08:53,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 471 flow. Second operand has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 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) [2022-07-13 22:08:53,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:08:53,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-07-13 22:08:53,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:08:53,705 INFO L129 PetriNetUnfolder]: 149/625 cut-off events. [2022-07-13 22:08:53,705 INFO L130 PetriNetUnfolder]: For 622/655 co-relation queries the response was YES. [2022-07-13 22:08:53,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1545 conditions, 625 events. 149/625 cut-off events. For 622/655 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3520 event pairs, 48 based on Foata normal form. 34/633 useless extension candidates. Maximal degree in co-relation 759. Up to 111 conditions per place. [2022-07-13 22:08:53,708 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 44 selfloop transitions, 24 changer transitions 4/151 dead transitions. [2022-07-13 22:08:53,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 151 transitions, 688 flow [2022-07-13 22:08:53,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:08:53,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-13 22:08:53,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 654 transitions. [2022-07-13 22:08:53,710 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7851140456182473 [2022-07-13 22:08:53,710 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 654 transitions. [2022-07-13 22:08:53,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 654 transitions. [2022-07-13 22:08:53,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:08:53,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 654 transitions. [2022-07-13 22:08:53,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 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) [2022-07-13 22:08:53,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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) [2022-07-13 22:08:53,713 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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) [2022-07-13 22:08:53,713 INFO L186 Difference]: Start difference. First operand has 125 places, 133 transitions, 471 flow. Second operand 7 states and 654 transitions. [2022-07-13 22:08:53,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 151 transitions, 688 flow [2022-07-13 22:08:53,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 151 transitions, 672 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-07-13 22:08:53,716 INFO L242 Difference]: Finished difference. Result has 129 places, 134 transitions, 523 flow [2022-07-13 22:08:53,717 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=523, PETRI_PLACES=129, PETRI_TRANSITIONS=134} [2022-07-13 22:08:53,717 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 16 predicate places. [2022-07-13 22:08:53,717 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 134 transitions, 523 flow [2022-07-13 22:08:53,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 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) [2022-07-13 22:08:53,718 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:08:53,718 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:08:53,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 22:08:53,718 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:08:53,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:08:53,719 INFO L85 PathProgramCache]: Analyzing trace with hash 787635499, now seen corresponding path program 6 times [2022-07-13 22:08:53,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:08:53,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486542541] [2022-07-13 22:08:53,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:08:53,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:08:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:08:53,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:08:53,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:08:53,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486542541] [2022-07-13 22:08:53,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486542541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:08:53,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:08:53,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 22:08:53,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671198760] [2022-07-13 22:08:53,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:08:53,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:08:53,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:08:53,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:08:53,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:08:53,788 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-07-13 22:08:53,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 134 transitions, 523 flow. Second operand has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 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) [2022-07-13 22:08:53,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:08:53,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-07-13 22:08:53,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:08:53,885 INFO L129 PetriNetUnfolder]: 42/280 cut-off events. [2022-07-13 22:08:53,885 INFO L130 PetriNetUnfolder]: For 309/323 co-relation queries the response was YES. [2022-07-13 22:08:53,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 280 events. 42/280 cut-off events. For 309/323 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 933 event pairs, 5 based on Foata normal form. 24/300 useless extension candidates. Maximal degree in co-relation 420. Up to 40 conditions per place. [2022-07-13 22:08:53,887 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 36 selfloop transitions, 23 changer transitions 2/135 dead transitions. [2022-07-13 22:08:53,887 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 135 transitions, 631 flow [2022-07-13 22:08:53,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:08:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-13 22:08:53,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 647 transitions. [2022-07-13 22:08:53,889 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7767106842737095 [2022-07-13 22:08:53,889 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 647 transitions. [2022-07-13 22:08:53,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 647 transitions. [2022-07-13 22:08:53,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:08:53,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 647 transitions. [2022-07-13 22:08:53,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 92.42857142857143) internal successors, (647), 7 states have internal predecessors, (647), 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) [2022-07-13 22:08:53,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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) [2022-07-13 22:08:53,892 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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) [2022-07-13 22:08:53,892 INFO L186 Difference]: Start difference. First operand has 129 places, 134 transitions, 523 flow. Second operand 7 states and 647 transitions. [2022-07-13 22:08:53,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 135 transitions, 631 flow [2022-07-13 22:08:53,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 135 transitions, 582 flow, removed 1 selfloop flow, removed 9 redundant places. [2022-07-13 22:08:53,895 INFO L242 Difference]: Finished difference. Result has 127 places, 124 transitions, 469 flow [2022-07-13 22:08:53,895 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=469, PETRI_PLACES=127, PETRI_TRANSITIONS=124} [2022-07-13 22:08:53,896 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 14 predicate places. [2022-07-13 22:08:53,896 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 124 transitions, 469 flow [2022-07-13 22:08:53,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 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) [2022-07-13 22:08:53,896 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:08:53,896 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:08:53,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 22:08:53,897 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:08:53,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:08:53,897 INFO L85 PathProgramCache]: Analyzing trace with hash -534133315, now seen corresponding path program 7 times [2022-07-13 22:08:53,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:08:53,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664471452] [2022-07-13 22:08:53,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:08:53,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:08:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:08:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:08:54,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:08:54,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664471452] [2022-07-13 22:08:54,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664471452] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:08:54,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:08:54,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 22:08:54,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114154896] [2022-07-13 22:08:54,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:08:54,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:08:54,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:08:54,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:08:54,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:08:54,012 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-07-13 22:08:54,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 469 flow. Second operand has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 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) [2022-07-13 22:08:54,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:08:54,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-07-13 22:08:54,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:08:54,156 INFO L129 PetriNetUnfolder]: 60/301 cut-off events. [2022-07-13 22:08:54,156 INFO L130 PetriNetUnfolder]: For 393/393 co-relation queries the response was YES. [2022-07-13 22:08:54,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 301 events. 60/301 cut-off events. For 393/393 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 944 event pairs, 9 based on Foata normal form. 3/299 useless extension candidates. Maximal degree in co-relation 452. Up to 59 conditions per place. [2022-07-13 22:08:54,158 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 52 selfloop transitions, 23 changer transitions 4/143 dead transitions. [2022-07-13 22:08:54,158 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 143 transitions, 699 flow [2022-07-13 22:08:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:08:54,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-13 22:08:54,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 683 transitions. [2022-07-13 22:08:54,159 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.717436974789916 [2022-07-13 22:08:54,159 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 683 transitions. [2022-07-13 22:08:54,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 683 transitions. [2022-07-13 22:08:54,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:08:54,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 683 transitions. [2022-07-13 22:08:54,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 85.375) internal successors, (683), 8 states have internal predecessors, (683), 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) [2022-07-13 22:08:54,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 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) [2022-07-13 22:08:54,163 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 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) [2022-07-13 22:08:54,163 INFO L186 Difference]: Start difference. First operand has 127 places, 124 transitions, 469 flow. Second operand 8 states and 683 transitions. [2022-07-13 22:08:54,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 143 transitions, 699 flow [2022-07-13 22:08:54,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 143 transitions, 672 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-13 22:08:54,166 INFO L242 Difference]: Finished difference. Result has 131 places, 122 transitions, 476 flow [2022-07-13 22:08:54,166 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=476, PETRI_PLACES=131, PETRI_TRANSITIONS=122} [2022-07-13 22:08:54,166 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 18 predicate places. [2022-07-13 22:08:54,167 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 122 transitions, 476 flow [2022-07-13 22:08:54,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 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) [2022-07-13 22:08:54,167 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:08:54,167 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:08:54,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 22:08:54,168 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:08:54,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:08:54,168 INFO L85 PathProgramCache]: Analyzing trace with hash -773389285, now seen corresponding path program 8 times [2022-07-13 22:08:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:08:54,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538166753] [2022-07-13 22:08:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:08:54,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:08:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:08:54,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:08:54,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:08:54,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538166753] [2022-07-13 22:08:54,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538166753] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:08:54,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:08:54,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 22:08:54,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102592283] [2022-07-13 22:08:54,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:08:54,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:08:54,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:08:54,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:08:54,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:08:54,272 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-07-13 22:08:54,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 122 transitions, 476 flow. Second operand has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 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) [2022-07-13 22:08:54,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:08:54,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-07-13 22:08:54,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:08:54,455 INFO L129 PetriNetUnfolder]: 54/284 cut-off events. [2022-07-13 22:08:54,456 INFO L130 PetriNetUnfolder]: For 494/494 co-relation queries the response was YES. [2022-07-13 22:08:54,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 284 events. 54/284 cut-off events. For 494/494 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 849 event pairs, 4 based on Foata normal form. 3/283 useless extension candidates. Maximal degree in co-relation 533. Up to 56 conditions per place. [2022-07-13 22:08:54,457 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 50 selfloop transitions, 21 changer transitions 8/143 dead transitions. [2022-07-13 22:08:54,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 143 transitions, 715 flow [2022-07-13 22:08:54,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:08:54,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-13 22:08:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 840 transitions. [2022-07-13 22:08:54,459 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2022-07-13 22:08:54,459 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 840 transitions. [2022-07-13 22:08:54,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 840 transitions. [2022-07-13 22:08:54,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:08:54,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 840 transitions. [2022-07-13 22:08:54,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 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) [2022-07-13 22:08:54,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 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) [2022-07-13 22:08:54,463 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 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) [2022-07-13 22:08:54,463 INFO L186 Difference]: Start difference. First operand has 131 places, 122 transitions, 476 flow. Second operand 10 states and 840 transitions. [2022-07-13 22:08:54,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 143 transitions, 715 flow [2022-07-13 22:08:54,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 143 transitions, 674 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-07-13 22:08:54,466 INFO L242 Difference]: Finished difference. Result has 135 places, 120 transitions, 462 flow [2022-07-13 22:08:54,466 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=462, PETRI_PLACES=135, PETRI_TRANSITIONS=120} [2022-07-13 22:08:54,467 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 22 predicate places. [2022-07-13 22:08:54,467 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 120 transitions, 462 flow [2022-07-13 22:08:54,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 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) [2022-07-13 22:08:54,467 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:08:54,468 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:08:54,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 22:08:54,468 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:08:54,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:08:54,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1998472079, now seen corresponding path program 9 times [2022-07-13 22:08:54,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:08:54,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836633467] [2022-07-13 22:08:54,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:08:54,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:08:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:08:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:08:54,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:08:54,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836633467] [2022-07-13 22:08:54,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836633467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:08:54,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:08:54,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 22:08:54,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504808841] [2022-07-13 22:08:54,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:08:54,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:08:54,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:08:54,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:08:54,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:08:54,567 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-07-13 22:08:54,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 120 transitions, 462 flow. Second operand has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 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) [2022-07-13 22:08:54,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:08:54,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-07-13 22:08:54,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:08:54,713 INFO L129 PetriNetUnfolder]: 36/249 cut-off events. [2022-07-13 22:08:54,713 INFO L130 PetriNetUnfolder]: For 434/434 co-relation queries the response was YES. [2022-07-13 22:08:54,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 249 events. 36/249 cut-off events. For 434/434 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 722 event pairs, 4 based on Foata normal form. 8/253 useless extension candidates. Maximal degree in co-relation 445. Up to 36 conditions per place. [2022-07-13 22:08:54,715 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 40 selfloop transitions, 12 changer transitions 23/139 dead transitions. [2022-07-13 22:08:54,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 139 transitions, 686 flow [2022-07-13 22:08:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:08:54,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-13 22:08:54,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 841 transitions. [2022-07-13 22:08:54,717 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7067226890756303 [2022-07-13 22:08:54,717 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 841 transitions. [2022-07-13 22:08:54,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 841 transitions. [2022-07-13 22:08:54,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:08:54,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 841 transitions. [2022-07-13 22:08:54,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 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) [2022-07-13 22:08:54,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 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) [2022-07-13 22:08:54,720 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 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) [2022-07-13 22:08:54,720 INFO L186 Difference]: Start difference. First operand has 135 places, 120 transitions, 462 flow. Second operand 10 states and 841 transitions. [2022-07-13 22:08:54,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 139 transitions, 686 flow [2022-07-13 22:08:54,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 139 transitions, 636 flow, removed 5 selfloop flow, removed 8 redundant places. [2022-07-13 22:08:54,723 INFO L242 Difference]: Finished difference. Result has 135 places, 107 transitions, 347 flow [2022-07-13 22:08:54,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=347, PETRI_PLACES=135, PETRI_TRANSITIONS=107} [2022-07-13 22:08:54,724 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 22 predicate places. [2022-07-13 22:08:54,724 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 107 transitions, 347 flow [2022-07-13 22:08:54,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 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) [2022-07-13 22:08:54,725 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:08:54,725 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:08:54,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 22:08:54,725 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:08:54,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:08:54,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1610486507, now seen corresponding path program 10 times [2022-07-13 22:08:54,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:08:54,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67718298] [2022-07-13 22:08:54,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:08:54,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:08:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:08:54,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:08:54,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:08:54,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67718298] [2022-07-13 22:08:54,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67718298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:08:54,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:08:54,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 22:08:54,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400510301] [2022-07-13 22:08:54,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:08:54,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:08:54,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:08:54,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:08:54,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:08:54,828 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-07-13 22:08:54,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 107 transitions, 347 flow. Second operand has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 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) [2022-07-13 22:08:54,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:08:54,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-07-13 22:08:54,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:08:54,923 INFO L129 PetriNetUnfolder]: 6/95 cut-off events. [2022-07-13 22:08:54,923 INFO L130 PetriNetUnfolder]: For 107/107 co-relation queries the response was YES. [2022-07-13 22:08:54,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 95 events. 6/95 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 6/101 useless extension candidates. Maximal degree in co-relation 187. Up to 11 conditions per place. [2022-07-13 22:08:54,924 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 0 selfloop transitions, 0 changer transitions 87/87 dead transitions. [2022-07-13 22:08:54,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 87 transitions, 356 flow [2022-07-13 22:08:54,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:08:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-13 22:08:54,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 807 transitions. [2022-07-13 22:08:54,937 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6781512605042017 [2022-07-13 22:08:54,937 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 807 transitions. [2022-07-13 22:08:54,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 807 transitions. [2022-07-13 22:08:54,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:08:54,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 807 transitions. [2022-07-13 22:08:54,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.7) internal successors, (807), 10 states have internal predecessors, (807), 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) [2022-07-13 22:08:54,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 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) [2022-07-13 22:08:54,941 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 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) [2022-07-13 22:08:54,941 INFO L186 Difference]: Start difference. First operand has 135 places, 107 transitions, 347 flow. Second operand 10 states and 807 transitions. [2022-07-13 22:08:54,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 87 transitions, 356 flow [2022-07-13 22:08:54,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 87 transitions, 285 flow, removed 10 selfloop flow, removed 18 redundant places. [2022-07-13 22:08:54,942 INFO L242 Difference]: Finished difference. Result has 99 places, 0 transitions, 0 flow [2022-07-13 22:08:54,943 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=99, PETRI_TRANSITIONS=0} [2022-07-13 22:08:54,943 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, -14 predicate places. [2022-07-13 22:08:54,943 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 0 transitions, 0 flow [2022-07-13 22:08:54,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 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) [2022-07-13 22:08:54,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-07-13 22:08:54,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-07-13 22:08:54,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-07-13 22:08:54,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-07-13 22:08:54,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 22:08:54,947 INFO L356 BasicCegarLoop]: Path program histogram: [10] [2022-07-13 22:08:54,949 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 22:08:54,949 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 22:08:54,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 10:08:54 BasicIcfg [2022-07-13 22:08:54,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 22:08:54,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 22:08:54,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 22:08:54,954 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 22:08:54,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:08:51" (3/4) ... [2022-07-13 22:08:54,956 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 22:08:54,959 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-07-13 22:08:54,960 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-07-13 22:08:54,960 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-07-13 22:08:54,963 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-07-13 22:08:54,963 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-13 22:08:54,963 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 22:08:54,963 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 22:08:54,984 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 22:08:54,985 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 22:08:54,985 INFO L158 Benchmark]: Toolchain (without parser) took 4343.67ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 104.0MB in the beginning and 148.8MB in the end (delta: -44.9MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-07-13 22:08:54,985 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 22:08:54,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.11ms. Allocated memory is still 134.2MB. Free memory was 103.7MB in the beginning and 109.5MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 22:08:54,986 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.68ms. Allocated memory is still 134.2MB. Free memory was 109.5MB in the beginning and 107.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 22:08:54,986 INFO L158 Benchmark]: Boogie Preprocessor took 17.37ms. Allocated memory is still 134.2MB. Free memory was 107.8MB in the beginning and 106.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 22:08:54,986 INFO L158 Benchmark]: RCFGBuilder took 360.68ms. Allocated memory is still 134.2MB. Free memory was 106.4MB in the beginning and 89.3MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-13 22:08:54,987 INFO L158 Benchmark]: TraceAbstraction took 3727.02ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 88.9MB in the beginning and 152.0MB in the end (delta: -63.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 22:08:54,987 INFO L158 Benchmark]: Witness Printer took 31.14ms. Allocated memory is still 195.0MB. Free memory was 152.0MB in the beginning and 148.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 22:08:54,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.11ms. Allocated memory is still 134.2MB. Free memory was 103.7MB in the beginning and 109.5MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.68ms. Allocated memory is still 134.2MB. Free memory was 109.5MB in the beginning and 107.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.37ms. Allocated memory is still 134.2MB. Free memory was 107.8MB in the beginning and 106.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 360.68ms. Allocated memory is still 134.2MB. Free memory was 106.4MB in the beginning and 89.3MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3727.02ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 88.9MB in the beginning and 152.0MB in the end (delta: -63.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 31.14ms. Allocated memory is still 195.0MB. Free memory was 152.0MB in the beginning and 148.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 143 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 394 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 394 mSDsluCounter, 502 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 831 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1769 IncrementalHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 170 mSDtfsCounter, 1769 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=523occurred in iteration=5, InterpolantAutomatonStates: 89, 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, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1010 NumberOfCodeBlocks, 1010 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1000 ConstructedInterpolants, 0 QuantifiedInterpolants, 3814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-13 22:08:55,038 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