./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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/pthread-divine/ring_1w1r-2.i -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 b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 02:54:23,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 02:54:23,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 02:54:23,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 02:54:23,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 02:54:23,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 02:54:23,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 02:54:23,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 02:54:23,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 02:54:23,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 02:54:23,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 02:54:23,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 02:54:23,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 02:54:23,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 02:54:23,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 02:54:23,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 02:54:23,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 02:54:23,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 02:54:23,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 02:54:23,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 02:54:23,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 02:54:23,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 02:54:23,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 02:54:23,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 02:54:23,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 02:54:23,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 02:54:23,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 02:54:23,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 02:54:23,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 02:54:23,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 02:54:23,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 02:54:23,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 02:54:23,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 02:54:23,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 02:54:23,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 02:54:23,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 02:54:23,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 02:54:23,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 02:54:23,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 02:54:23,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 02:54:23,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 02:54:23,823 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 02:54:23,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 02:54:23,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 02:54:23,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 02:54:23,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 02:54:23,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 02:54:23,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 02:54:23,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 02:54:23,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 02:54:23,850 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 02:54:23,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 02:54:23,851 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 02:54:23,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 02:54:23,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 02:54:23,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 02:54:23,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 02:54:23,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 02:54:23,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 02:54:23,852 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 02:54:23,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 02:54:23,852 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 02:54:23,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 02:54:23,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 02:54:23,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 02:54:23,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 02:54:23,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:54:23,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 02:54:23,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 02:54:23,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 02:54:23,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 02:54:23,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 02:54:23,860 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 02:54:23,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 02:54:23,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 02:54:23,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2021-12-28 02:54:24,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 02:54:24,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 02:54:24,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 02:54:24,117 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 02:54:24,119 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 02:54:24,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2021-12-28 02:54:24,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3066bbd/9c1c4ce6efd1458da1e2ead6c347e697/FLAG4c11d4a94 [2021-12-28 02:54:24,576 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 02:54:24,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2021-12-28 02:54:24,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3066bbd/9c1c4ce6efd1458da1e2ead6c347e697/FLAG4c11d4a94 [2021-12-28 02:54:24,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3066bbd/9c1c4ce6efd1458da1e2ead6c347e697 [2021-12-28 02:54:24,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 02:54:24,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 02:54:24,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 02:54:24,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 02:54:24,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 02:54:24,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:54:24" (1/1) ... [2021-12-28 02:54:24,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2d3827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:24, skipping insertion in model container [2021-12-28 02:54:24,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:54:24" (1/1) ... [2021-12-28 02:54:24,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 02:54:25,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 02:54:25,113 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-12-28 02:54:25,299 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/pthread-divine/ring_1w1r-2.i[39095,39108] [2021-12-28 02:54:25,303 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/pthread-divine/ring_1w1r-2.i[39180,39193] [2021-12-28 02:54:25,304 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/pthread-divine/ring_1w1r-2.i[39232,39245] [2021-12-28 02:54:25,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:54:25,324 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 02:54:25,342 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-12-28 02:54:25,374 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/pthread-divine/ring_1w1r-2.i[39095,39108] [2021-12-28 02:54:25,377 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/pthread-divine/ring_1w1r-2.i[39180,39193] [2021-12-28 02:54:25,378 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/pthread-divine/ring_1w1r-2.i[39232,39245] [2021-12-28 02:54:25,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:54:25,425 INFO L208 MainTranslator]: Completed translation [2021-12-28 02:54:25,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25 WrapperNode [2021-12-28 02:54:25,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 02:54:25,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 02:54:25,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 02:54:25,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 02:54:25,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (1/1) ... [2021-12-28 02:54:25,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (1/1) ... [2021-12-28 02:54:25,473 INFO L137 Inliner]: procedures = 224, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2021-12-28 02:54:25,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 02:54:25,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 02:54:25,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 02:54:25,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 02:54:25,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (1/1) ... [2021-12-28 02:54:25,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (1/1) ... [2021-12-28 02:54:25,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (1/1) ... [2021-12-28 02:54:25,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (1/1) ... [2021-12-28 02:54:25,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (1/1) ... [2021-12-28 02:54:25,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (1/1) ... [2021-12-28 02:54:25,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (1/1) ... [2021-12-28 02:54:25,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 02:54:25,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 02:54:25,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 02:54:25,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 02:54:25,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (1/1) ... [2021-12-28 02:54:25,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:54:25,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 02:54:25,553 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) [2021-12-28 02:54:25,572 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 [2021-12-28 02:54:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2021-12-28 02:54:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2021-12-28 02:54:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 02:54:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 02:54:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 02:54:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 02:54:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 02:54:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 02:54:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 02:54:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 02:54:25,587 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-28 02:54:25,730 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 02:54:25,732 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 02:54:25,962 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 02:54:25,976 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 02:54:25,976 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-28 02:54:25,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:54:25 BoogieIcfgContainer [2021-12-28 02:54:25,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 02:54:25,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 02:54:25,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 02:54:25,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 02:54:25,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 02:54:24" (1/3) ... [2021-12-28 02:54:25,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6feb01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:54:25, skipping insertion in model container [2021-12-28 02:54:25,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:54:25" (2/3) ... [2021-12-28 02:54:25,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6feb01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:54:25, skipping insertion in model container [2021-12-28 02:54:25,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:54:25" (3/3) ... [2021-12-28 02:54:25,985 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2021-12-28 02:54:25,989 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-28 02:54:25,989 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 02:54:25,989 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-28 02:54:25,989 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-28 02:54:26,050 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,050 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,050 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,051 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,051 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,051 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,051 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,051 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,052 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,052 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,052 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,052 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,052 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,052 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,053 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,053 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,053 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,053 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,053 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,055 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,055 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,055 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,055 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,055 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,056 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,056 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,057 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,058 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,058 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,058 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,058 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,058 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,059 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,059 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,059 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,060 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,060 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,060 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,060 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,061 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,061 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,061 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,061 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,061 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,061 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,062 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,062 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,062 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,062 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,062 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,063 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,063 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,063 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,063 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,063 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,063 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,063 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,063 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,064 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,064 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,064 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,064 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,064 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,064 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,064 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,065 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,065 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,065 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,066 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,066 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,067 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,067 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,067 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,067 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,067 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,068 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,068 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,068 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,068 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,069 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,070 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,076 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,076 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,076 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,077 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,077 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,077 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,077 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,077 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,078 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,078 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,078 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,078 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,079 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,079 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,079 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,079 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,079 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,080 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,080 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,080 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,080 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,080 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,080 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,081 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,081 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,081 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,081 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,081 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,081 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,082 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,082 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,082 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,082 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,082 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,082 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,082 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,083 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,083 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,083 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,083 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,084 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,084 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,084 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,084 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,084 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,084 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,084 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,085 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,085 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,085 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,085 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,085 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,085 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,086 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,087 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,087 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,087 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,087 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,088 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,088 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,088 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,088 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,089 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,089 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,089 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,089 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,089 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,089 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,089 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,090 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,090 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,090 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,090 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,091 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,092 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,092 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,092 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,092 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,092 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,093 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,093 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,093 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,094 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,094 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,094 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,094 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,094 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,094 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,094 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,095 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,095 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,095 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,095 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,095 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,095 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,095 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,095 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,096 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,096 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,096 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,096 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,096 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,096 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,096 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,097 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,097 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,097 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,097 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,097 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,098 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,098 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,098 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,098 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,098 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,099 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,099 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,099 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,099 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,099 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,099 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,099 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,100 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,100 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,100 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,100 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,100 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,101 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,103 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,103 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,103 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,103 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,103 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,104 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,104 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,104 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,105 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,109 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,109 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,109 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,109 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,109 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,109 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,110 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,110 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,110 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,110 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,111 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,111 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,111 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,111 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,111 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,111 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,112 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,112 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,117 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,118 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,118 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,118 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,118 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,118 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,118 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,119 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,119 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,119 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,119 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,119 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,120 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,120 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,120 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,120 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,120 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,120 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,120 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,121 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,121 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,125 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,125 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,125 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,125 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,126 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,126 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,126 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,126 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,126 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,127 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~last~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,127 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,127 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,127 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,127 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,127 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~r~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,127 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,127 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,128 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,128 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,128 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,128 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,128 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,128 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,128 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,129 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,129 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,129 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,129 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,129 WARN L322 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:54:26,132 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-28 02:54:26,177 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 02:54:26,182 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 02:54:26,182 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-28 02:54:26,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 158 transitions, 324 flow [2021-12-28 02:54:26,240 INFO L129 PetriNetUnfolder]: 10/157 cut-off events. [2021-12-28 02:54:26,240 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-28 02:54:26,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 157 events. 10/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 270 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 116. Up to 2 conditions per place. [2021-12-28 02:54:26,246 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 158 transitions, 324 flow [2021-12-28 02:54:26,254 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 148 transitions, 299 flow [2021-12-28 02:54:26,271 INFO L129 PetriNetUnfolder]: 2/51 cut-off events. [2021-12-28 02:54:26,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:54:26,272 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:54:26,273 INFO L254 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] [2021-12-28 02:54:26,273 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:54:26,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:54:26,279 INFO L85 PathProgramCache]: Analyzing trace with hash 847621616, now seen corresponding path program 1 times [2021-12-28 02:54:26,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:54:26,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866121890] [2021-12-28 02:54:26,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:54:26,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:54:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:54:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:54:26,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:54:26,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866121890] [2021-12-28 02:54:26,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866121890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:54:26,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:54:26,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 02:54:26,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420555866] [2021-12-28 02:54:26,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:54:26,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 02:54:26,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:54:26,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 02:54:26,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-28 02:54:26,482 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 158 [2021-12-28 02:54:26,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 148 transitions, 299 flow. Second operand has 2 states, 2 states have (on average 151.0) internal successors, (302), 2 states have internal predecessors, (302), 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) [2021-12-28 02:54:26,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:54:26,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 158 [2021-12-28 02:54:26,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:54:26,535 INFO L129 PetriNetUnfolder]: 4/142 cut-off events. [2021-12-28 02:54:26,535 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-28 02:54:26,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 142 events. 4/142 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 213 event pairs, 0 based on Foata normal form. 6/141 useless extension candidates. Maximal degree in co-relation 110. Up to 2 conditions per place. [2021-12-28 02:54:26,539 INFO L132 encePairwiseOnDemand]: 152/158 looper letters, 1 selfloop transitions, 0 changer transitions 0/142 dead transitions. [2021-12-28 02:54:26,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 142 transitions, 289 flow [2021-12-28 02:54:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 02:54:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-28 02:54:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 307 transitions. [2021-12-28 02:54:26,552 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9715189873417721 [2021-12-28 02:54:26,553 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 307 transitions. [2021-12-28 02:54:26,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 307 transitions. [2021-12-28 02:54:26,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:54:26,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 307 transitions. [2021-12-28 02:54:26,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 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) [2021-12-28 02:54:26,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2021-12-28 02:54:26,571 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2021-12-28 02:54:26,573 INFO L186 Difference]: Start difference. First operand has 142 places, 148 transitions, 299 flow. Second operand 2 states and 307 transitions. [2021-12-28 02:54:26,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 142 transitions, 289 flow [2021-12-28 02:54:26,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 142 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-28 02:54:26,583 INFO L242 Difference]: Finished difference. Result has 142 places, 142 transitions, 286 flow [2021-12-28 02:54:26,585 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=286, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2021-12-28 02:54:26,588 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 0 predicate places. [2021-12-28 02:54:26,589 INFO L470 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 286 flow [2021-12-28 02:54:26,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 151.0) internal successors, (302), 2 states have internal predecessors, (302), 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) [2021-12-28 02:54:26,589 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:54:26,589 INFO L254 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] [2021-12-28 02:54:26,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 02:54:26,590 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:54:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:54:26,590 INFO L85 PathProgramCache]: Analyzing trace with hash 506434889, now seen corresponding path program 1 times [2021-12-28 02:54:26,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:54:26,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825588961] [2021-12-28 02:54:26,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:54:26,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:54:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:54:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:54:26,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:54:26,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825588961] [2021-12-28 02:54:26,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825588961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:54:26,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:54:26,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 02:54:26,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730216299] [2021-12-28 02:54:26,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:54:26,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 02:54:26,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:54:26,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 02:54:26,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 02:54:26,660 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 158 [2021-12-28 02:54:26,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 142 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2021-12-28 02:54:26,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:54:26,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 158 [2021-12-28 02:54:26,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:54:26,707 INFO L129 PetriNetUnfolder]: 5/185 cut-off events. [2021-12-28 02:54:26,707 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:54:26,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 185 events. 5/185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 161 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 196. Up to 7 conditions per place. [2021-12-28 02:54:26,711 INFO L132 encePairwiseOnDemand]: 155/158 looper letters, 7 selfloop transitions, 2 changer transitions 0/145 dead transitions. [2021-12-28 02:54:26,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 145 transitions, 310 flow [2021-12-28 02:54:26,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 02:54:26,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-28 02:54:26,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2021-12-28 02:54:26,714 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9388185654008439 [2021-12-28 02:54:26,714 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2021-12-28 02:54:26,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2021-12-28 02:54:26,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:54:26,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2021-12-28 02:54:26,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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) [2021-12-28 02:54:26,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2021-12-28 02:54:26,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2021-12-28 02:54:26,720 INFO L186 Difference]: Start difference. First operand has 142 places, 142 transitions, 286 flow. Second operand 3 states and 445 transitions. [2021-12-28 02:54:26,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 145 transitions, 310 flow [2021-12-28 02:54:26,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 145 transitions, 310 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-28 02:54:26,725 INFO L242 Difference]: Finished difference. Result has 145 places, 143 transitions, 298 flow [2021-12-28 02:54:26,726 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=145, PETRI_TRANSITIONS=143} [2021-12-28 02:54:26,726 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 3 predicate places. [2021-12-28 02:54:26,727 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 143 transitions, 298 flow [2021-12-28 02:54:26,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2021-12-28 02:54:26,727 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:54:26,727 INFO L254 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] [2021-12-28 02:54:26,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 02:54:26,728 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:54:26,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:54:26,729 INFO L85 PathProgramCache]: Analyzing trace with hash -654644372, now seen corresponding path program 1 times [2021-12-28 02:54:26,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:54:26,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538698115] [2021-12-28 02:54:26,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:54:26,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:54:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:54:27,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:54:27,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:54:27,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538698115] [2021-12-28 02:54:27,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538698115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:54:27,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:54:27,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-28 02:54:27,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350819692] [2021-12-28 02:54:27,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:54:27,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-28 02:54:27,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:54:27,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-28 02:54:27,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-28 02:54:27,186 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 158 [2021-12-28 02:54:27,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 143 transitions, 298 flow. Second operand has 18 states, 18 states have (on average 88.27777777777777) internal successors, (1589), 18 states have internal predecessors, (1589), 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) [2021-12-28 02:54:27,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:54:27,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 158 [2021-12-28 02:54:27,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:54:28,872 INFO L129 PetriNetUnfolder]: 583/2004 cut-off events. [2021-12-28 02:54:28,872 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-12-28 02:54:28,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3132 conditions, 2004 events. 583/2004 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 12792 event pairs, 252 based on Foata normal form. 0/1894 useless extension candidates. Maximal degree in co-relation 3127. Up to 766 conditions per place. [2021-12-28 02:54:28,882 INFO L132 encePairwiseOnDemand]: 137/158 looper letters, 129 selfloop transitions, 34 changer transitions 10/255 dead transitions. [2021-12-28 02:54:28,883 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 255 transitions, 868 flow [2021-12-28 02:54:28,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-28 02:54:28,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-12-28 02:54:28,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2067 transitions. [2021-12-28 02:54:28,887 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5946490218642118 [2021-12-28 02:54:28,887 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2067 transitions. [2021-12-28 02:54:28,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2067 transitions. [2021-12-28 02:54:28,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:54:28,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2067 transitions. [2021-12-28 02:54:28,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 93.95454545454545) internal successors, (2067), 22 states have internal predecessors, (2067), 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) [2021-12-28 02:54:28,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 158.0) internal successors, (3634), 23 states have internal predecessors, (3634), 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) [2021-12-28 02:54:28,898 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 158.0) internal successors, (3634), 23 states have internal predecessors, (3634), 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) [2021-12-28 02:54:28,898 INFO L186 Difference]: Start difference. First operand has 145 places, 143 transitions, 298 flow. Second operand 22 states and 2067 transitions. [2021-12-28 02:54:28,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 255 transitions, 868 flow [2021-12-28 02:54:28,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 255 transitions, 866 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-28 02:54:28,905 INFO L242 Difference]: Finished difference. Result has 175 places, 174 transitions, 503 flow [2021-12-28 02:54:28,905 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=503, PETRI_PLACES=175, PETRI_TRANSITIONS=174} [2021-12-28 02:54:28,907 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 33 predicate places. [2021-12-28 02:54:28,907 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 174 transitions, 503 flow [2021-12-28 02:54:28,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 88.27777777777777) internal successors, (1589), 18 states have internal predecessors, (1589), 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) [2021-12-28 02:54:28,909 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:54:28,909 INFO L254 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] [2021-12-28 02:54:28,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 02:54:28,909 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:54:28,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:54:28,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2143908831, now seen corresponding path program 1 times [2021-12-28 02:54:28,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:54:28,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116449497] [2021-12-28 02:54:28,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:54:28,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:54:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:54:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:54:29,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:54:29,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116449497] [2021-12-28 02:54:29,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116449497] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:54:29,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:54:29,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-12-28 02:54:29,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209781987] [2021-12-28 02:54:29,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:54:29,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 02:54:29,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:54:29,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 02:54:29,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2021-12-28 02:54:29,588 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 158 [2021-12-28 02:54:29,590 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 174 transitions, 503 flow. Second operand has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:54:29,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:54:29,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 158 [2021-12-28 02:54:29,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:54:33,702 INFO L129 PetriNetUnfolder]: 1897/5425 cut-off events. [2021-12-28 02:54:33,702 INFO L130 PetriNetUnfolder]: For 1621/1626 co-relation queries the response was YES. [2021-12-28 02:54:33,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11032 conditions, 5425 events. 1897/5425 cut-off events. For 1621/1626 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 38964 event pairs, 636 based on Foata normal form. 20/5207 useless extension candidates. Maximal degree in co-relation 11017. Up to 1877 conditions per place. [2021-12-28 02:54:33,766 INFO L132 encePairwiseOnDemand]: 125/158 looper letters, 337 selfloop transitions, 91 changer transitions 3/502 dead transitions. [2021-12-28 02:54:33,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 502 transitions, 2593 flow [2021-12-28 02:54:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-28 02:54:33,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-12-28 02:54:33,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3138 transitions. [2021-12-28 02:54:33,772 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5367772836127267 [2021-12-28 02:54:33,773 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 3138 transitions. [2021-12-28 02:54:33,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 3138 transitions. [2021-12-28 02:54:33,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:54:33,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 3138 transitions. [2021-12-28 02:54:33,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 84.8108108108108) internal successors, (3138), 37 states have internal predecessors, (3138), 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) [2021-12-28 02:54:33,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 158.0) internal successors, (6004), 38 states have internal predecessors, (6004), 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) [2021-12-28 02:54:33,793 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 158.0) internal successors, (6004), 38 states have internal predecessors, (6004), 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) [2021-12-28 02:54:33,793 INFO L186 Difference]: Start difference. First operand has 175 places, 174 transitions, 503 flow. Second operand 37 states and 3138 transitions. [2021-12-28 02:54:33,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 502 transitions, 2593 flow [2021-12-28 02:54:33,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 502 transitions, 2582 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-12-28 02:54:33,809 INFO L242 Difference]: Finished difference. Result has 230 places, 255 transitions, 1245 flow [2021-12-28 02:54:33,809 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1245, PETRI_PLACES=230, PETRI_TRANSITIONS=255} [2021-12-28 02:54:33,810 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 88 predicate places. [2021-12-28 02:54:33,811 INFO L470 AbstractCegarLoop]: Abstraction has has 230 places, 255 transitions, 1245 flow [2021-12-28 02:54:33,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:54:33,811 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:54:33,812 INFO L254 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] [2021-12-28 02:54:33,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 02:54:33,813 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:54:33,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:54:33,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1028678017, now seen corresponding path program 2 times [2021-12-28 02:54:33,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:54:33,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497753577] [2021-12-28 02:54:33,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:54:33,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:54:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:54:34,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:54:34,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:54:34,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497753577] [2021-12-28 02:54:34,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497753577] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:54:34,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:54:34,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-12-28 02:54:34,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4210181] [2021-12-28 02:54:34,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:54:34,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 02:54:34,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:54:34,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 02:54:34,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=640, Unknown=0, NotChecked=0, Total=702 [2021-12-28 02:54:34,485 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 158 [2021-12-28 02:54:34,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 255 transitions, 1245 flow. Second operand has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:54:34,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:54:34,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 158 [2021-12-28 02:54:34,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:54:38,781 INFO L129 PetriNetUnfolder]: 2297/6566 cut-off events. [2021-12-28 02:54:38,782 INFO L130 PetriNetUnfolder]: For 8292/8295 co-relation queries the response was YES. [2021-12-28 02:54:38,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16912 conditions, 6566 events. 2297/6566 cut-off events. For 8292/8295 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 50250 event pairs, 427 based on Foata normal form. 18/6302 useless extension candidates. Maximal degree in co-relation 16872. Up to 2347 conditions per place. [2021-12-28 02:54:38,834 INFO L132 encePairwiseOnDemand]: 125/158 looper letters, 367 selfloop transitions, 116 changer transitions 1/555 dead transitions. [2021-12-28 02:54:38,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 555 transitions, 3917 flow [2021-12-28 02:54:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-28 02:54:38,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-12-28 02:54:38,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3117 transitions. [2021-12-28 02:54:38,840 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5331850838179952 [2021-12-28 02:54:38,840 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 3117 transitions. [2021-12-28 02:54:38,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 3117 transitions. [2021-12-28 02:54:38,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:54:38,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 3117 transitions. [2021-12-28 02:54:38,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 84.24324324324324) internal successors, (3117), 37 states have internal predecessors, (3117), 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) [2021-12-28 02:54:38,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 158.0) internal successors, (6004), 38 states have internal predecessors, (6004), 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) [2021-12-28 02:54:38,855 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 158.0) internal successors, (6004), 38 states have internal predecessors, (6004), 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) [2021-12-28 02:54:38,856 INFO L186 Difference]: Start difference. First operand has 230 places, 255 transitions, 1245 flow. Second operand 37 states and 3117 transitions. [2021-12-28 02:54:38,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 555 transitions, 3917 flow [2021-12-28 02:54:38,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 555 transitions, 3890 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-12-28 02:54:38,881 INFO L242 Difference]: Finished difference. Result has 283 places, 326 transitions, 2220 flow [2021-12-28 02:54:38,882 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=1225, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=2220, PETRI_PLACES=283, PETRI_TRANSITIONS=326} [2021-12-28 02:54:38,883 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 141 predicate places. [2021-12-28 02:54:38,884 INFO L470 AbstractCegarLoop]: Abstraction has has 283 places, 326 transitions, 2220 flow [2021-12-28 02:54:38,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:54:38,885 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:54:38,885 INFO L254 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] [2021-12-28 02:54:38,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 02:54:38,885 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:54:38,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:54:38,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1366726909, now seen corresponding path program 3 times [2021-12-28 02:54:38,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:54:38,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459110314] [2021-12-28 02:54:38,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:54:38,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:54:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:54:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:54:39,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:54:39,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459110314] [2021-12-28 02:54:39,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459110314] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:54:39,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:54:39,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-12-28 02:54:39,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743017212] [2021-12-28 02:54:39,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:54:39,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 02:54:39,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:54:39,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 02:54:39,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2021-12-28 02:54:39,482 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 158 [2021-12-28 02:54:39,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 326 transitions, 2220 flow. Second operand has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:54:39,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:54:39,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 158 [2021-12-28 02:54:39,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:54:45,631 INFO L129 PetriNetUnfolder]: 3204/8725 cut-off events. [2021-12-28 02:54:45,632 INFO L130 PetriNetUnfolder]: For 27009/27024 co-relation queries the response was YES. [2021-12-28 02:54:45,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28865 conditions, 8725 events. 3204/8725 cut-off events. For 27009/27024 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 70156 event pairs, 762 based on Foata normal form. 25/8397 useless extension candidates. Maximal degree in co-relation 28802. Up to 3450 conditions per place. [2021-12-28 02:54:45,703 INFO L132 encePairwiseOnDemand]: 125/158 looper letters, 484 selfloop transitions, 160 changer transitions 14/729 dead transitions. [2021-12-28 02:54:45,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 729 transitions, 6309 flow [2021-12-28 02:54:45,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-12-28 02:54:45,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-12-28 02:54:45,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 4127 transitions. [2021-12-28 02:54:45,724 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5330663911134074 [2021-12-28 02:54:45,724 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 4127 transitions. [2021-12-28 02:54:45,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 4127 transitions. [2021-12-28 02:54:45,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:54:45,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 4127 transitions. [2021-12-28 02:54:45,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 84.22448979591837) internal successors, (4127), 49 states have internal predecessors, (4127), 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) [2021-12-28 02:54:45,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 158.0) internal successors, (7900), 50 states have internal predecessors, (7900), 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) [2021-12-28 02:54:45,744 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 158.0) internal successors, (7900), 50 states have internal predecessors, (7900), 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) [2021-12-28 02:54:45,744 INFO L186 Difference]: Start difference. First operand has 283 places, 326 transitions, 2220 flow. Second operand 49 states and 4127 transitions. [2021-12-28 02:54:45,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 729 transitions, 6309 flow [2021-12-28 02:54:45,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 729 transitions, 6043 flow, removed 104 selfloop flow, removed 8 redundant places. [2021-12-28 02:54:45,838 INFO L242 Difference]: Finished difference. Result has 360 places, 445 transitions, 3911 flow [2021-12-28 02:54:45,839 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=2040, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=3911, PETRI_PLACES=360, PETRI_TRANSITIONS=445} [2021-12-28 02:54:45,841 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 218 predicate places. [2021-12-28 02:54:45,841 INFO L470 AbstractCegarLoop]: Abstraction has has 360 places, 445 transitions, 3911 flow [2021-12-28 02:54:45,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:54:45,842 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:54:45,842 INFO L254 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] [2021-12-28 02:54:45,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 02:54:45,842 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:54:45,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:54:45,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1084924805, now seen corresponding path program 4 times [2021-12-28 02:54:45,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:54:45,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987416186] [2021-12-28 02:54:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:54:45,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:54:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:54:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:54:46,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:54:46,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987416186] [2021-12-28 02:54:46,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987416186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:54:46,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:54:46,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-12-28 02:54:46,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981041373] [2021-12-28 02:54:46,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:54:46,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 02:54:46,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:54:46,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 02:54:46,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=640, Unknown=0, NotChecked=0, Total=702 [2021-12-28 02:54:46,489 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 158 [2021-12-28 02:54:46,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 445 transitions, 3911 flow. Second operand has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:54:46,490 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:54:46,490 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 158 [2021-12-28 02:54:46,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:54:51,854 INFO L129 PetriNetUnfolder]: 3867/10439 cut-off events. [2021-12-28 02:54:51,854 INFO L130 PetriNetUnfolder]: For 57389/57405 co-relation queries the response was YES. [2021-12-28 02:54:51,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38945 conditions, 10439 events. 3867/10439 cut-off events. For 57389/57405 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 87607 event pairs, 1339 based on Foata normal form. 22/10027 useless extension candidates. Maximal degree in co-relation 38845. Up to 4209 conditions per place. [2021-12-28 02:54:51,961 INFO L132 encePairwiseOnDemand]: 125/158 looper letters, 567 selfloop transitions, 140 changer transitions 3/781 dead transitions. [2021-12-28 02:54:51,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 781 transitions, 8223 flow [2021-12-28 02:54:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-28 02:54:51,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-12-28 02:54:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3149 transitions. [2021-12-28 02:54:51,965 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5386589120766336 [2021-12-28 02:54:51,965 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 3149 transitions. [2021-12-28 02:54:51,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 3149 transitions. [2021-12-28 02:54:51,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:54:51,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 3149 transitions. [2021-12-28 02:54:51,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 85.10810810810811) internal successors, (3149), 37 states have internal predecessors, (3149), 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) [2021-12-28 02:54:51,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 158.0) internal successors, (6004), 38 states have internal predecessors, (6004), 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) [2021-12-28 02:54:51,976 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 158.0) internal successors, (6004), 38 states have internal predecessors, (6004), 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) [2021-12-28 02:54:51,976 INFO L186 Difference]: Start difference. First operand has 360 places, 445 transitions, 3911 flow. Second operand 37 states and 3149 transitions. [2021-12-28 02:54:51,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 781 transitions, 8223 flow [2021-12-28 02:54:52,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 781 transitions, 7895 flow, removed 148 selfloop flow, removed 7 redundant places. [2021-12-28 02:54:52,191 INFO L242 Difference]: Finished difference. Result has 418 places, 518 transitions, 5075 flow [2021-12-28 02:54:52,192 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=3594, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=5075, PETRI_PLACES=418, PETRI_TRANSITIONS=518} [2021-12-28 02:54:52,192 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 276 predicate places. [2021-12-28 02:54:52,192 INFO L470 AbstractCegarLoop]: Abstraction has has 418 places, 518 transitions, 5075 flow [2021-12-28 02:54:52,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:54:52,193 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:54:52,193 INFO L254 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] [2021-12-28 02:54:52,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 02:54:52,193 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:54:52,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:54:52,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1419731227, now seen corresponding path program 5 times [2021-12-28 02:54:52,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:54:52,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827936960] [2021-12-28 02:54:52,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:54:52,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:54:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:54:52,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:54:52,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:54:52,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827936960] [2021-12-28 02:54:52,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827936960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:54:52,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:54:52,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-12-28 02:54:52,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739937160] [2021-12-28 02:54:52,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:54:52,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 02:54:52,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:54:52,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 02:54:52,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2021-12-28 02:54:52,688 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 158 [2021-12-28 02:54:52,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 518 transitions, 5075 flow. Second operand has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:54:52,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:54:52,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 158 [2021-12-28 02:54:52,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:00,077 INFO L129 PetriNetUnfolder]: 4098/10904 cut-off events. [2021-12-28 02:55:00,077 INFO L130 PetriNetUnfolder]: For 81686/81704 co-relation queries the response was YES. [2021-12-28 02:55:00,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44392 conditions, 10904 events. 4098/10904 cut-off events. For 81686/81704 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 92694 event pairs, 951 based on Foata normal form. 26/10515 useless extension candidates. Maximal degree in co-relation 44263. Up to 3416 conditions per place. [2021-12-28 02:55:00,223 INFO L132 encePairwiseOnDemand]: 125/158 looper letters, 631 selfloop transitions, 299 changer transitions 13/1014 dead transitions. [2021-12-28 02:55:00,223 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 1014 transitions, 11506 flow [2021-12-28 02:55:00,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-12-28 02:55:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-12-28 02:55:00,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 4255 transitions. [2021-12-28 02:55:00,228 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5280466617026558 [2021-12-28 02:55:00,228 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 4255 transitions. [2021-12-28 02:55:00,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 4255 transitions. [2021-12-28 02:55:00,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:00,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 4255 transitions. [2021-12-28 02:55:00,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 83.43137254901961) internal successors, (4255), 51 states have internal predecessors, (4255), 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) [2021-12-28 02:55:00,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 158.0) internal successors, (8216), 52 states have internal predecessors, (8216), 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) [2021-12-28 02:55:00,242 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 158.0) internal successors, (8216), 52 states have internal predecessors, (8216), 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) [2021-12-28 02:55:00,243 INFO L186 Difference]: Start difference. First operand has 418 places, 518 transitions, 5075 flow. Second operand 51 states and 4255 transitions. [2021-12-28 02:55:00,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 1014 transitions, 11506 flow [2021-12-28 02:55:00,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 1014 transitions, 10966 flow, removed 260 selfloop flow, removed 6 redundant places. [2021-12-28 02:55:00,648 INFO L242 Difference]: Finished difference. Result has 496 places, 604 transitions, 6902 flow [2021-12-28 02:55:00,649 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=4714, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=6902, PETRI_PLACES=496, PETRI_TRANSITIONS=604} [2021-12-28 02:55:00,651 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 354 predicate places. [2021-12-28 02:55:00,651 INFO L470 AbstractCegarLoop]: Abstraction has has 496 places, 604 transitions, 6902 flow [2021-12-28 02:55:00,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:55:00,651 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:00,652 INFO L254 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] [2021-12-28 02:55:00,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 02:55:00,652 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:55:00,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:00,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1657952229, now seen corresponding path program 6 times [2021-12-28 02:55:00,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:00,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747783198] [2021-12-28 02:55:00,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:00,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:01,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:01,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:01,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747783198] [2021-12-28 02:55:01,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747783198] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:01,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:01,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-12-28 02:55:01,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947839632] [2021-12-28 02:55:01,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:01,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 02:55:01,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:01,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 02:55:01,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2021-12-28 02:55:01,192 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 158 [2021-12-28 02:55:01,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 604 transitions, 6902 flow. Second operand has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:55:01,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:01,194 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 158 [2021-12-28 02:55:01,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:08,053 INFO L129 PetriNetUnfolder]: 4921/13140 cut-off events. [2021-12-28 02:55:08,053 INFO L130 PetriNetUnfolder]: For 155630/155644 co-relation queries the response was YES. [2021-12-28 02:55:08,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60423 conditions, 13140 events. 4921/13140 cut-off events. For 155630/155644 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 117068 event pairs, 1485 based on Foata normal form. 23/12633 useless extension candidates. Maximal degree in co-relation 60260. Up to 5463 conditions per place. [2021-12-28 02:55:08,274 INFO L132 encePairwiseOnDemand]: 125/158 looper letters, 723 selfloop transitions, 193 changer transitions 4/991 dead transitions. [2021-12-28 02:55:08,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 991 transitions, 13410 flow [2021-12-28 02:55:08,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-28 02:55:08,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-12-28 02:55:08,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3165 transitions. [2021-12-28 02:55:08,283 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5413958262059528 [2021-12-28 02:55:08,284 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 3165 transitions. [2021-12-28 02:55:08,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 3165 transitions. [2021-12-28 02:55:08,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:08,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 3165 transitions. [2021-12-28 02:55:08,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 85.54054054054055) internal successors, (3165), 37 states have internal predecessors, (3165), 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) [2021-12-28 02:55:08,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 158.0) internal successors, (6004), 38 states have internal predecessors, (6004), 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) [2021-12-28 02:55:08,300 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 158.0) internal successors, (6004), 38 states have internal predecessors, (6004), 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) [2021-12-28 02:55:08,300 INFO L186 Difference]: Start difference. First operand has 496 places, 604 transitions, 6902 flow. Second operand 37 states and 3165 transitions. [2021-12-28 02:55:08,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 991 transitions, 13410 flow [2021-12-28 02:55:08,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 991 transitions, 12423 flow, removed 219 selfloop flow, removed 15 redundant places. [2021-12-28 02:55:08,883 INFO L242 Difference]: Finished difference. Result has 543 places, 691 transitions, 8480 flow [2021-12-28 02:55:08,884 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=6180, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=8480, PETRI_PLACES=543, PETRI_TRANSITIONS=691} [2021-12-28 02:55:08,885 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 401 predicate places. [2021-12-28 02:55:08,885 INFO L470 AbstractCegarLoop]: Abstraction has has 543 places, 691 transitions, 8480 flow [2021-12-28 02:55:08,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:55:08,885 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:08,886 INFO L254 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] [2021-12-28 02:55:08,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 02:55:08,886 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:55:08,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:08,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1633184395, now seen corresponding path program 7 times [2021-12-28 02:55:08,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:08,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022209086] [2021-12-28 02:55:08,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:08,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:09,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:09,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022209086] [2021-12-28 02:55:09,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022209086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:09,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:09,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-12-28 02:55:09,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649256542] [2021-12-28 02:55:09,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:09,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 02:55:09,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:09,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 02:55:09,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2021-12-28 02:55:09,501 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 158 [2021-12-28 02:55:09,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 691 transitions, 8480 flow. Second operand has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:55:09,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:09,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 158 [2021-12-28 02:55:09,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:19,096 INFO L129 PetriNetUnfolder]: 5344/13898 cut-off events. [2021-12-28 02:55:19,096 INFO L130 PetriNetUnfolder]: For 219532/219548 co-relation queries the response was YES. [2021-12-28 02:55:19,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70045 conditions, 13898 events. 5344/13898 cut-off events. For 219532/219548 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 123204 event pairs, 1829 based on Foata normal form. 30/13370 useless extension candidates. Maximal degree in co-relation 69856. Up to 5523 conditions per place. [2021-12-28 02:55:19,473 INFO L132 encePairwiseOnDemand]: 125/158 looper letters, 748 selfloop transitions, 302 changer transitions 20/1141 dead transitions. [2021-12-28 02:55:19,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 1141 transitions, 16235 flow [2021-12-28 02:55:19,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-12-28 02:55:19,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-12-28 02:55:19,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 4435 transitions. [2021-12-28 02:55:19,478 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5398003894839338 [2021-12-28 02:55:19,478 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 4435 transitions. [2021-12-28 02:55:19,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 4435 transitions. [2021-12-28 02:55:19,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:19,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 4435 transitions. [2021-12-28 02:55:19,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 85.28846153846153) internal successors, (4435), 52 states have internal predecessors, (4435), 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) [2021-12-28 02:55:19,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 158.0) internal successors, (8374), 53 states have internal predecessors, (8374), 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) [2021-12-28 02:55:19,490 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 158.0) internal successors, (8374), 53 states have internal predecessors, (8374), 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) [2021-12-28 02:55:19,490 INFO L186 Difference]: Start difference. First operand has 543 places, 691 transitions, 8480 flow. Second operand 52 states and 4435 transitions. [2021-12-28 02:55:19,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 1141 transitions, 16235 flow [2021-12-28 02:55:20,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 585 places, 1141 transitions, 15545 flow, removed 290 selfloop flow, removed 9 redundant places. [2021-12-28 02:55:20,300 INFO L242 Difference]: Finished difference. Result has 616 places, 782 transitions, 10516 flow [2021-12-28 02:55:20,301 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=7817, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=212, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=10516, PETRI_PLACES=616, PETRI_TRANSITIONS=782} [2021-12-28 02:55:20,302 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 474 predicate places. [2021-12-28 02:55:20,302 INFO L470 AbstractCegarLoop]: Abstraction has has 616 places, 782 transitions, 10516 flow [2021-12-28 02:55:20,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:55:20,303 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:20,303 INFO L254 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] [2021-12-28 02:55:20,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 02:55:20,303 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-28 02:55:20,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:20,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1827845697, now seen corresponding path program 8 times [2021-12-28 02:55:20,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:20,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067258188] [2021-12-28 02:55:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:20,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:20,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:20,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:20,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067258188] [2021-12-28 02:55:20,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067258188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:20,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:20,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-12-28 02:55:20,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155158108] [2021-12-28 02:55:20,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:20,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 02:55:20,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:20,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 02:55:20,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-12-28 02:55:20,786 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 158 [2021-12-28 02:55:20,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 782 transitions, 10516 flow. Second operand has 27 states, 27 states have (on average 77.0) internal successors, (2079), 27 states have internal predecessors, (2079), 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) [2021-12-28 02:55:20,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:20,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 158 [2021-12-28 02:55:20,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand