./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix008.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-wmm/mix008.opt.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 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 15:01:19,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 15:01:19,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 15:01:19,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 15:01:19,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 15:01:19,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 15:01:19,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 15:01:19,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 15:01:19,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 15:01:19,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 15:01:19,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 15:01:19,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 15:01:19,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 15:01:19,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 15:01:19,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 15:01:19,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 15:01:19,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 15:01:19,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 15:01:19,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 15:01:19,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 15:01:19,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 15:01:19,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 15:01:19,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 15:01:19,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 15:01:19,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 15:01:19,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 15:01:19,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 15:01:19,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 15:01:19,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 15:01:19,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 15:01:19,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 15:01:19,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 15:01:19,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 15:01:19,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 15:01:19,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 15:01:19,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 15:01:19,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 15:01:19,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 15:01:19,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 15:01:19,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 15:01:19,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 15:01:19,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 15:01:19,188 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 15:01:19,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 15:01:19,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 15:01:19,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 15:01:19,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 15:01:19,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 15:01:19,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 15:01:19,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 15:01:19,191 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 15:01:19,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 15:01:19,192 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 15:01:19,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 15:01:19,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 15:01:19,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 15:01:19,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 15:01:19,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 15:01:19,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 15:01:19,193 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 15:01:19,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 15:01:19,193 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 15:01:19,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 15:01:19,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 15:01:19,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 15:01:19,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 15:01:19,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:01:19,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 15:01:19,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 15:01:19,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 15:01:19,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 15:01:19,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 15:01:19,196 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 15:01:19,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 15:01:19,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 15:01:19,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 15:01:19,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 [2021-12-21 15:01:19,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 15:01:19,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 15:01:19,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 15:01:19,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 15:01:19,442 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 15:01:19,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix008.opt.i [2021-12-21 15:01:19,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c4c10c6c/3d16a903d6f542ee8a689b51efd6ad6f/FLAG1d3b4f602 [2021-12-21 15:01:19,925 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 15:01:19,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008.opt.i [2021-12-21 15:01:19,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c4c10c6c/3d16a903d6f542ee8a689b51efd6ad6f/FLAG1d3b4f602 [2021-12-21 15:01:19,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c4c10c6c/3d16a903d6f542ee8a689b51efd6ad6f [2021-12-21 15:01:19,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 15:01:19,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 15:01:19,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 15:01:19,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 15:01:19,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 15:01:19,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:01:19" (1/1) ... [2021-12-21 15:01:19,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354e2da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:19, skipping insertion in model container [2021-12-21 15:01:19,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:01:19" (1/1) ... [2021-12-21 15:01:19,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 15:01:20,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 15:01:20,184 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-wmm/mix008.opt.i[944,957] [2021-12-21 15:01:20,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:01:20,331 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 15:01:20,344 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-wmm/mix008.opt.i[944,957] [2021-12-21 15:01:20,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:01:20,446 INFO L208 MainTranslator]: Completed translation [2021-12-21 15:01:20,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20 WrapperNode [2021-12-21 15:01:20,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 15:01:20,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 15:01:20,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 15:01:20,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 15:01:20,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (1/1) ... [2021-12-21 15:01:20,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (1/1) ... [2021-12-21 15:01:20,526 INFO L137 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 295 [2021-12-21 15:01:20,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 15:01:20,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 15:01:20,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 15:01:20,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 15:01:20,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (1/1) ... [2021-12-21 15:01:20,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (1/1) ... [2021-12-21 15:01:20,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (1/1) ... [2021-12-21 15:01:20,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (1/1) ... [2021-12-21 15:01:20,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (1/1) ... [2021-12-21 15:01:20,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (1/1) ... [2021-12-21 15:01:20,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (1/1) ... [2021-12-21 15:01:20,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 15:01:20,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 15:01:20,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 15:01:20,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 15:01:20,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (1/1) ... [2021-12-21 15:01:20,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:01:20,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:01:20,644 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) [2021-12-21 15:01:20,664 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 [2021-12-21 15:01:20,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 15:01:20,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-21 15:01:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 15:01:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 15:01:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 15:01:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-21 15:01:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-21 15:01:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-21 15:01:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-21 15:01:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-21 15:01:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-21 15:01:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-12-21 15:01:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-12-21 15:01:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 15:01:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-21 15:01:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 15:01:20,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 15:01:20,700 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-21 15:01:20,876 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 15:01:20,878 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 15:01:21,319 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 15:01:21,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 15:01:21,715 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 15:01:21,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:01:21 BoogieIcfgContainer [2021-12-21 15:01:21,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 15:01:21,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 15:01:21,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 15:01:21,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 15:01:21,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:01:19" (1/3) ... [2021-12-21 15:01:21,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebf529a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:01:21, skipping insertion in model container [2021-12-21 15:01:21,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:01:20" (2/3) ... [2021-12-21 15:01:21,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebf529a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:01:21, skipping insertion in model container [2021-12-21 15:01:21,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:01:21" (3/3) ... [2021-12-21 15:01:21,726 INFO L111 eAbstractionObserver]: Analyzing ICFG mix008.opt.i [2021-12-21 15:01:21,730 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-21 15:01:21,731 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 15:01:21,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-21 15:01:21,731 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-21 15:01:21,797 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,797 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,797 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,798 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,798 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,798 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,798 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,799 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,799 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,800 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,800 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,800 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,801 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,801 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,801 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,801 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,802 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,802 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,802 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,803 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,803 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,803 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,804 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,804 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,805 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,805 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,806 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,806 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,806 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,806 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,806 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,807 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,808 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,808 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,808 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,808 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,808 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,809 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,809 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,809 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,809 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,809 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,810 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,810 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,810 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,810 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,810 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,811 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,811 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,811 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,811 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,811 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,811 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,812 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,812 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,812 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,812 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,812 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,813 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,813 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,813 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,813 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,813 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,814 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,814 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,814 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,814 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,816 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,817 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,817 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,817 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,818 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,818 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,819 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,819 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,821 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,822 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,822 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,822 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,827 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,827 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,827 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,828 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,828 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,833 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,833 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,833 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,833 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,833 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,833 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,834 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,834 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,834 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,834 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,834 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,834 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,835 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,835 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,835 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,835 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,835 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,835 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,835 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,836 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,836 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,838 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,838 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,839 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,839 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,839 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,839 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,840 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,840 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,840 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,840 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,840 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,840 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,841 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,841 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,841 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,841 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,841 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,842 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,842 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,842 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,842 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,843 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,843 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,843 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,843 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,843 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,843 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,844 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,844 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,844 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,844 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,844 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,844 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,844 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,845 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,845 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,845 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,845 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,846 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,846 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,846 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,846 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,846 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,847 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,848 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,848 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,848 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,849 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,849 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,849 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,849 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,849 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,849 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,849 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,850 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,850 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,850 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,850 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,852 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,852 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,853 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,853 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,853 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,853 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,853 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,853 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,853 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,854 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,854 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,854 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,854 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,854 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,854 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,855 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,855 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,855 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,855 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,855 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,855 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,856 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,856 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,856 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,856 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,856 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,856 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,856 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,857 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,857 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,857 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,857 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,857 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,857 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,858 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,858 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,858 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,858 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,861 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,863 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite50#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,863 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite52#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,864 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite51#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,864 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite53#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,864 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite54#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,864 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,865 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,865 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite50#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,865 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite52#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,866 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite51#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,866 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite53#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,866 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite54#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,866 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,867 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,867 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,867 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,868 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,872 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,872 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,872 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,873 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,873 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,878 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,878 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,878 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,879 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,879 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,879 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,879 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,879 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,880 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,880 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,900 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,900 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,900 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,900 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,901 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,901 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,901 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,901 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,901 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,901 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,902 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,902 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,903 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,903 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,903 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,903 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,904 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,904 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,904 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,904 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,904 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite54#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,905 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,905 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,905 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,905 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,905 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,905 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,906 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,906 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,906 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,906 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite52#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,906 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,906 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,907 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,907 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,907 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,907 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite51#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,907 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,907 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,908 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,908 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,908 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,908 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite50#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,908 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,908 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,909 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,909 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,909 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite53#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,909 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,909 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,909 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,910 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,910 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,910 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,910 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:01:21,911 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-21 15:01:21,946 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:01:21,956 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 [2021-12-21 15:01:21,957 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-21 15:01:21,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2021-12-21 15:01:22,035 INFO L129 PetriNetUnfolder]: 2/132 cut-off events. [2021-12-21 15:01:22,036 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 15:01:22,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2021-12-21 15:01:22,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2021-12-21 15:01:22,046 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2021-12-21 15:01:22,071 INFO L129 PetriNetUnfolder]: 0/92 cut-off events. [2021-12-21 15:01:22,071 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 15:01:22,072 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:22,073 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] [2021-12-21 15:01:22,073 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:22,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:22,080 INFO L85 PathProgramCache]: Analyzing trace with hash 581370858, now seen corresponding path program 1 times [2021-12-21 15:01:22,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:22,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24268854] [2021-12-21 15:01:22,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:22,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:22,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:22,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:22,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24268854] [2021-12-21 15:01:22,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24268854] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:22,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:22,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 15:01:22,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778406555] [2021-12-21 15:01:22,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:22,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:01:22,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:22,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:01:22,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:01:22,462 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 136 [2021-12-21 15:01:22,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2021-12-21 15:01:22,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:22,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 136 [2021-12-21 15:01:22,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:22,583 INFO L129 PetriNetUnfolder]: 14/171 cut-off events. [2021-12-21 15:01:22,584 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-21 15:01:22,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 171 events. 14/171 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 301 event pairs, 2 based on Foata normal form. 7/169 useless extension candidates. Maximal degree in co-relation 164. Up to 25 conditions per place. [2021-12-21 15:01:22,588 INFO L132 encePairwiseOnDemand]: 131/136 looper letters, 10 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2021-12-21 15:01:22,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 130 transitions, 296 flow [2021-12-21 15:01:22,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:01:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-21 15:01:22,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2021-12-21 15:01:22,603 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9387254901960784 [2021-12-21 15:01:22,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2021-12-21 15:01:22,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2021-12-21 15:01:22,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:01:22,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2021-12-21 15:01:22,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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) [2021-12-21 15:01:22,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2021-12-21 15:01:22,625 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2021-12-21 15:01:22,627 INFO L186 Difference]: Start difference. First operand has 143 places, 132 transitions, 276 flow. Second operand 3 states and 383 transitions. [2021-12-21 15:01:22,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 130 transitions, 296 flow [2021-12-21 15:01:22,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 130 transitions, 292 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-21 15:01:22,636 INFO L242 Difference]: Finished difference. Result has 139 places, 128 transitions, 268 flow [2021-12-21 15:01:22,638 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2021-12-21 15:01:22,641 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -4 predicate places. [2021-12-21 15:01:22,641 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 268 flow [2021-12-21 15:01:22,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2021-12-21 15:01:22,642 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:22,643 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] [2021-12-21 15:01:22,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 15:01:22,644 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:22,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:22,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1360753834, now seen corresponding path program 1 times [2021-12-21 15:01:22,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:22,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707942462] [2021-12-21 15:01:22,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:22,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:22,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:22,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707942462] [2021-12-21 15:01:22,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707942462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:22,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:22,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:01:22,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658848853] [2021-12-21 15:01:22,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:22,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:01:22,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:22,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:01:22,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:01:22,931 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-12-21 15:01:22,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 268 flow. Second operand has 7 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 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) [2021-12-21 15:01:22,932 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:22,932 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-12-21 15:01:22,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:24,749 INFO L129 PetriNetUnfolder]: 4517/10734 cut-off events. [2021-12-21 15:01:24,749 INFO L130 PetriNetUnfolder]: For 168/168 co-relation queries the response was YES. [2021-12-21 15:01:24,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17424 conditions, 10734 events. 4517/10734 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 102599 event pairs, 575 based on Foata normal form. 0/10502 useless extension candidates. Maximal degree in co-relation 17362. Up to 2074 conditions per place. [2021-12-21 15:01:24,816 INFO L132 encePairwiseOnDemand]: 121/136 looper letters, 36 selfloop transitions, 11 changer transitions 101/235 dead transitions. [2021-12-21 15:01:24,816 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 235 transitions, 758 flow [2021-12-21 15:01:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-21 15:01:24,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-21 15:01:24,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1490 transitions. [2021-12-21 15:01:24,821 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8427601809954751 [2021-12-21 15:01:24,822 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1490 transitions. [2021-12-21 15:01:24,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1490 transitions. [2021-12-21 15:01:24,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:01:24,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1490 transitions. [2021-12-21 15:01:24,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.61538461538461) internal successors, (1490), 13 states have internal predecessors, (1490), 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) [2021-12-21 15:01:24,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-21 15:01:24,835 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-21 15:01:24,836 INFO L186 Difference]: Start difference. First operand has 139 places, 128 transitions, 268 flow. Second operand 13 states and 1490 transitions. [2021-12-21 15:01:24,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 235 transitions, 758 flow [2021-12-21 15:01:24,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 235 transitions, 748 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-21 15:01:24,843 INFO L242 Difference]: Finished difference. Result has 161 places, 121 transitions, 372 flow [2021-12-21 15:01:24,843 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=372, PETRI_PLACES=161, PETRI_TRANSITIONS=121} [2021-12-21 15:01:24,844 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 18 predicate places. [2021-12-21 15:01:24,844 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 121 transitions, 372 flow [2021-12-21 15:01:24,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 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) [2021-12-21 15:01:24,845 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:24,846 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] [2021-12-21 15:01:24,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 15:01:24,846 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:24,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:24,850 INFO L85 PathProgramCache]: Analyzing trace with hash 652666150, now seen corresponding path program 1 times [2021-12-21 15:01:24,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:24,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415012617] [2021-12-21 15:01:24,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:24,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:25,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:25,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:25,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415012617] [2021-12-21 15:01:25,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415012617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:25,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:25,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:01:25,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650924982] [2021-12-21 15:01:25,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:25,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:01:25,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:25,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:01:25,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:01:25,076 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-12-21 15:01:25,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 121 transitions, 372 flow. Second operand has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 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) [2021-12-21 15:01:25,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:25,077 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-12-21 15:01:25,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:26,364 INFO L129 PetriNetUnfolder]: 2991/6268 cut-off events. [2021-12-21 15:01:26,364 INFO L130 PetriNetUnfolder]: For 15478/15478 co-relation queries the response was YES. [2021-12-21 15:01:26,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21320 conditions, 6268 events. 2991/6268 cut-off events. For 15478/15478 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 50401 event pairs, 614 based on Foata normal form. 118/6180 useless extension candidates. Maximal degree in co-relation 21242. Up to 1886 conditions per place. [2021-12-21 15:01:26,428 INFO L132 encePairwiseOnDemand]: 118/136 looper letters, 41 selfloop transitions, 24 changer transitions 88/240 dead transitions. [2021-12-21 15:01:26,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 240 transitions, 1504 flow [2021-12-21 15:01:26,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-21 15:01:26,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-21 15:01:26,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2021-12-21 15:01:26,433 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8399321266968326 [2021-12-21 15:01:26,433 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1485 transitions. [2021-12-21 15:01:26,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1485 transitions. [2021-12-21 15:01:26,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:01:26,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1485 transitions. [2021-12-21 15:01:26,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.23076923076923) internal successors, (1485), 13 states have internal predecessors, (1485), 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) [2021-12-21 15:01:26,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-21 15:01:26,442 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-21 15:01:26,442 INFO L186 Difference]: Start difference. First operand has 161 places, 121 transitions, 372 flow. Second operand 13 states and 1485 transitions. [2021-12-21 15:01:26,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 240 transitions, 1504 flow [2021-12-21 15:01:26,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 240 transitions, 1476 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-12-21 15:01:26,483 INFO L242 Difference]: Finished difference. Result has 158 places, 135 transitions, 633 flow [2021-12-21 15:01:26,483 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=633, PETRI_PLACES=158, PETRI_TRANSITIONS=135} [2021-12-21 15:01:26,484 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 15 predicate places. [2021-12-21 15:01:26,484 INFO L470 AbstractCegarLoop]: Abstraction has has 158 places, 135 transitions, 633 flow [2021-12-21 15:01:26,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 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) [2021-12-21 15:01:26,485 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:26,485 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] [2021-12-21 15:01:26,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 15:01:26,485 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:26,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:26,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1402658611, now seen corresponding path program 1 times [2021-12-21 15:01:26,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:26,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942327431] [2021-12-21 15:01:26,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:26,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:26,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:26,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:26,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942327431] [2021-12-21 15:01:26,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942327431] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:26,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:26,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:01:26,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758214905] [2021-12-21 15:01:26,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:26,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:01:26,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:26,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:01:26,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:01:26,644 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-12-21 15:01:26,644 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 135 transitions, 633 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 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) [2021-12-21 15:01:26,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:26,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-12-21 15:01:26,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:27,789 INFO L129 PetriNetUnfolder]: 2454/5147 cut-off events. [2021-12-21 15:01:27,790 INFO L130 PetriNetUnfolder]: For 25834/25834 co-relation queries the response was YES. [2021-12-21 15:01:27,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21914 conditions, 5147 events. 2454/5147 cut-off events. For 25834/25834 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 39431 event pairs, 523 based on Foata normal form. 87/5046 useless extension candidates. Maximal degree in co-relation 21816. Up to 1545 conditions per place. [2021-12-21 15:01:27,863 INFO L132 encePairwiseOnDemand]: 119/136 looper letters, 44 selfloop transitions, 34 changer transitions 70/235 dead transitions. [2021-12-21 15:01:27,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 235 transitions, 1837 flow [2021-12-21 15:01:27,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-21 15:01:27,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-21 15:01:27,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1482 transitions. [2021-12-21 15:01:27,868 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8382352941176471 [2021-12-21 15:01:27,868 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1482 transitions. [2021-12-21 15:01:27,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1482 transitions. [2021-12-21 15:01:27,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:01:27,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1482 transitions. [2021-12-21 15:01:27,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.0) internal successors, (1482), 13 states have internal predecessors, (1482), 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) [2021-12-21 15:01:27,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-21 15:01:27,876 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-21 15:01:27,876 INFO L186 Difference]: Start difference. First operand has 158 places, 135 transitions, 633 flow. Second operand 13 states and 1482 transitions. [2021-12-21 15:01:27,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 235 transitions, 1837 flow [2021-12-21 15:01:27,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 235 transitions, 1765 flow, removed 36 selfloop flow, removed 3 redundant places. [2021-12-21 15:01:27,930 INFO L242 Difference]: Finished difference. Result has 170 places, 145 transitions, 902 flow [2021-12-21 15:01:27,931 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=902, PETRI_PLACES=170, PETRI_TRANSITIONS=145} [2021-12-21 15:01:27,931 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 27 predicate places. [2021-12-21 15:01:27,932 INFO L470 AbstractCegarLoop]: Abstraction has has 170 places, 145 transitions, 902 flow [2021-12-21 15:01:27,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 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) [2021-12-21 15:01:27,932 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:27,933 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] [2021-12-21 15:01:27,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 15:01:27,933 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:27,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1480343123, now seen corresponding path program 1 times [2021-12-21 15:01:27,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:27,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577945377] [2021-12-21 15:01:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:27,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:28,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:28,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577945377] [2021-12-21 15:01:28,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577945377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:28,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:28,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 15:01:28,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612641862] [2021-12-21 15:01:28,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:28,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 15:01:28,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:28,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 15:01:28,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 15:01:28,053 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2021-12-21 15:01:28,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 145 transitions, 902 flow. Second operand has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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) [2021-12-21 15:01:28,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:28,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2021-12-21 15:01:28,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:29,046 INFO L129 PetriNetUnfolder]: 1801/4401 cut-off events. [2021-12-21 15:01:29,046 INFO L130 PetriNetUnfolder]: For 26526/27429 co-relation queries the response was YES. [2021-12-21 15:01:29,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19261 conditions, 4401 events. 1801/4401 cut-off events. For 26526/27429 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 37624 event pairs, 577 based on Foata normal form. 306/4533 useless extension candidates. Maximal degree in co-relation 19157. Up to 1329 conditions per place. [2021-12-21 15:01:29,100 INFO L132 encePairwiseOnDemand]: 130/136 looper letters, 40 selfloop transitions, 8 changer transitions 47/205 dead transitions. [2021-12-21 15:01:29,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 205 transitions, 1718 flow [2021-12-21 15:01:29,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:01:29,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:01:29,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1070 transitions. [2021-12-21 15:01:29,104 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8741830065359477 [2021-12-21 15:01:29,104 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1070 transitions. [2021-12-21 15:01:29,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1070 transitions. [2021-12-21 15:01:29,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:01:29,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1070 transitions. [2021-12-21 15:01:29,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.88888888888889) internal successors, (1070), 9 states have internal predecessors, (1070), 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) [2021-12-21 15:01:29,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-12-21 15:01:29,110 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-12-21 15:01:29,111 INFO L186 Difference]: Start difference. First operand has 170 places, 145 transitions, 902 flow. Second operand 9 states and 1070 transitions. [2021-12-21 15:01:29,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 205 transitions, 1718 flow [2021-12-21 15:01:29,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 205 transitions, 1620 flow, removed 49 selfloop flow, removed 15 redundant places. [2021-12-21 15:01:29,157 INFO L242 Difference]: Finished difference. Result has 161 places, 144 transitions, 866 flow [2021-12-21 15:01:29,157 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=866, PETRI_PLACES=161, PETRI_TRANSITIONS=144} [2021-12-21 15:01:29,158 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 18 predicate places. [2021-12-21 15:01:29,158 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 144 transitions, 866 flow [2021-12-21 15:01:29,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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) [2021-12-21 15:01:29,159 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:29,159 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] [2021-12-21 15:01:29,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 15:01:29,160 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:29,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:29,160 INFO L85 PathProgramCache]: Analyzing trace with hash 762690930, now seen corresponding path program 1 times [2021-12-21 15:01:29,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:29,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866458935] [2021-12-21 15:01:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:29,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:29,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:29,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866458935] [2021-12-21 15:01:29,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866458935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:29,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:29,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 15:01:29,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157426756] [2021-12-21 15:01:29,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:29,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 15:01:29,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:29,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 15:01:29,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 15:01:29,264 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2021-12-21 15:01:29,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 144 transitions, 866 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2021-12-21 15:01:29,265 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:29,265 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2021-12-21 15:01:29,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:29,984 INFO L129 PetriNetUnfolder]: 1401/3587 cut-off events. [2021-12-21 15:01:29,984 INFO L130 PetriNetUnfolder]: For 22298/25429 co-relation queries the response was YES. [2021-12-21 15:01:30,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15336 conditions, 3587 events. 1401/3587 cut-off events. For 22298/25429 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 30260 event pairs, 343 based on Foata normal form. 337/3736 useless extension candidates. Maximal degree in co-relation 15231. Up to 1178 conditions per place. [2021-12-21 15:01:30,025 INFO L132 encePairwiseOnDemand]: 130/136 looper letters, 25 selfloop transitions, 4 changer transitions 25/175 dead transitions. [2021-12-21 15:01:30,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 175 transitions, 1230 flow [2021-12-21 15:01:30,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:01:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:01:30,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1069 transitions. [2021-12-21 15:01:30,034 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8733660130718954 [2021-12-21 15:01:30,034 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1069 transitions. [2021-12-21 15:01:30,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1069 transitions. [2021-12-21 15:01:30,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:01:30,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1069 transitions. [2021-12-21 15:01:30,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.77777777777777) internal successors, (1069), 9 states have internal predecessors, (1069), 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) [2021-12-21 15:01:30,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-12-21 15:01:30,043 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-12-21 15:01:30,043 INFO L186 Difference]: Start difference. First operand has 161 places, 144 transitions, 866 flow. Second operand 9 states and 1069 transitions. [2021-12-21 15:01:30,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 175 transitions, 1230 flow [2021-12-21 15:01:30,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 175 transitions, 1194 flow, removed 14 selfloop flow, removed 7 redundant places. [2021-12-21 15:01:30,084 INFO L242 Difference]: Finished difference. Result has 163 places, 144 transitions, 872 flow [2021-12-21 15:01:30,084 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=872, PETRI_PLACES=163, PETRI_TRANSITIONS=144} [2021-12-21 15:01:30,087 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 20 predicate places. [2021-12-21 15:01:30,087 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 144 transitions, 872 flow [2021-12-21 15:01:30,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2021-12-21 15:01:30,088 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:30,088 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] [2021-12-21 15:01:30,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 15:01:30,089 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:30,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:30,090 INFO L85 PathProgramCache]: Analyzing trace with hash 677576100, now seen corresponding path program 1 times [2021-12-21 15:01:30,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:30,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90769021] [2021-12-21 15:01:30,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:30,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:30,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:30,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90769021] [2021-12-21 15:01:30,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90769021] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:30,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:30,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 15:01:30,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883205589] [2021-12-21 15:01:30,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:30,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 15:01:30,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:30,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 15:01:30,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 15:01:30,234 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2021-12-21 15:01:30,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 144 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 113.33333333333333) internal successors, (680), 6 states have internal predecessors, (680), 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) [2021-12-21 15:01:30,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:30,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2021-12-21 15:01:30,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:32,724 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1167] L786-->L802: Formula: (let ((.cse31 (= (mod v_~z$w_buff1_used~0_315 256) 0)) (.cse25 (= (mod v_~z$r_buff0_thd3~0_170 256) 0)) (.cse11 (= (mod v_~z$r_buff1_thd3~0_133 256) 0))) (let ((.cse16 (not .cse11)) (.cse2 (not .cse25)) (.cse23 (and .cse25 .cse11)) (.cse30 (= (mod v_~z$w_buff0_used~0_450 256) 0)) (.cse24 (and .cse25 .cse31)) (.cse8 (= (mod v_~weak$$choice2~0_150 256) 0)) (.cse12 (= (mod v_~z$w_buff1_used~0_314 256) 0)) (.cse13 (= (mod v_~z$w_buff0_used~0_449 256) 0))) (let ((.cse21 (or .cse25 .cse13)) (.cse15 (not .cse13)) (.cse18 (not .cse12)) (.cse9 (not .cse8)) (.cse1 (or .cse23 .cse30 .cse24)) (.cse6 (or (not .cse31) .cse2)) (.cse5 (or .cse25 .cse30)) (.cse4 (not .cse30)) (.cse7 (or .cse2 .cse16))) (and (let ((.cse0 (= |v_P2_#t~ite10_67| |v_P2Thread1of1ForFork0_#t~ite10_1|))) (or (and (or (and .cse0 .cse1 (= |v_P2_#t~ite11_59| v_~z$w_buff1~0_126)) (and (let ((.cse3 (= |v_P2_#t~ite10_67| v_~z$w_buff1~0_126))) (or (and .cse2 .cse3 .cse4) (and .cse3 .cse5))) (= |v_P2_#t~ite10_67| |v_P2_#t~ite11_59|) .cse6 .cse4 .cse7)) .cse8 (= |v_P2_#t~ite11_59| v_~z$w_buff1~0_125)) (and (= |v_P2_#t~ite11_59| |v_P2Thread1of1ForFork0_#t~ite11_1|) .cse9 .cse0 (= v_~z$w_buff1~0_126 v_~z$w_buff1~0_125)))) (= v_~weak$$choice2~0_150 |v_P2Thread1of1ForFork0_#t~nondet4_1|) (= |v_P2Thread1of1ForFork0_#t~nondet3_1| v_~weak$$choice0~0_20) (= v_~z$flush_delayed~0_78 0) (= v_~z$mem_tmp~0_48 v_~z~0_166) (let ((.cse14 (= |v_P2_#t~ite22_61| |v_P2Thread1of1ForFork0_#t~ite22_1|))) (or (and .cse8 (= |v_P2_#t~ite23_53| v_~z$r_buff1_thd3~0_132) (let ((.cse10 (= (mod v_~z$r_buff0_thd3~0_169 256) 0))) (or (and (= |v_P2_#t~ite23_53| v_~z$r_buff1_thd3~0_133) (or (and .cse10 .cse11) (and .cse10 .cse12) .cse13) .cse14) (let ((.cse17 (not .cse10))) (and .cse15 (or .cse16 .cse17) (= |v_P2_#t~ite22_61| |v_P2_#t~ite23_53|) (or .cse18 .cse17) (let ((.cse19 (= |v_P2_#t~ite22_61| 0))) (or (and .cse19 (or .cse10 .cse13)) (and .cse15 .cse19 .cse17)))))))) (and (= |v_P2_#t~ite23_53| |v_P2Thread1of1ForFork0_#t~ite23_1|) .cse9 .cse14 (= v_~z$r_buff1_thd3~0_133 v_~z$r_buff1_thd3~0_132)))) (let ((.cse20 (= |v_P2_#t~ite16_41| |v_P2Thread1of1ForFork0_#t~ite16_1|))) (or (and (= |v_P2_#t~ite17_39| |v_P2Thread1of1ForFork0_#t~ite17_1|) .cse20 .cse9 (= v_~z$w_buff1_used~0_315 v_~z$w_buff1_used~0_314)) (and .cse8 (or (and .cse6 .cse15 (let ((.cse22 (= |v_P2_#t~ite16_41| 0))) (or (and .cse21 .cse22) (and .cse15 .cse2 .cse22))) .cse7 (= |v_P2_#t~ite16_41| |v_P2_#t~ite17_39|)) (and (or .cse23 .cse24 .cse13) .cse20 (= |v_P2_#t~ite17_39| v_~z$w_buff1_used~0_315))) (= |v_P2_#t~ite17_39| v_~z$w_buff1_used~0_314)))) (or (and .cse9 (= v_~z$mem_tmp~0_48 v_~z~0_164)) (and .cse8 (= v_~__unbuffered_p2_EBX~0_16 v_~z~0_164))) (let ((.cse26 (= |v_P2_#t~ite19_55| |v_P2Thread1of1ForFork0_#t~ite19_1|))) (or (and .cse8 (or (and (= |v_P2_#t~ite20_47| v_~z$r_buff0_thd3~0_170) (or .cse23 (and .cse25 .cse12) .cse13) .cse26) (and (or (and .cse21 (= |v_P2_#t~ite19_55| v_~z$r_buff0_thd3~0_170)) (and .cse15 (= |v_P2_#t~ite19_55| 0) .cse2)) .cse15 (= |v_P2_#t~ite19_55| |v_P2_#t~ite20_47|) (or .cse2 .cse18) .cse7)) (= |v_P2_#t~ite20_47| v_~z$r_buff0_thd3~0_169)) (and .cse9 (= v_~z$r_buff0_thd3~0_170 v_~z$r_buff0_thd3~0_169) (= |v_P2_#t~ite20_47| |v_P2Thread1of1ForFork0_#t~ite20_1|) .cse26))) (let ((.cse27 (= |v_P2_#t~ite7_65| |v_P2Thread1of1ForFork0_#t~ite7_1|))) (or (and (= v_~z$w_buff0~0_137 v_~z$w_buff0~0_136) .cse9 (= |v_P2_#t~ite8_59| |v_P2Thread1of1ForFork0_#t~ite8_1|) .cse27) (and .cse8 (or (and .cse6 .cse4 (= |v_P2_#t~ite7_65| |v_P2_#t~ite8_59|) (let ((.cse28 (= |v_P2_#t~ite7_65| v_~z$w_buff0~0_137))) (or (and .cse2 .cse4 .cse28) (and .cse5 .cse28))) .cse7) (and (= |v_P2_#t~ite8_59| v_~z$w_buff0~0_137) .cse27 .cse1)) (= |v_P2_#t~ite8_59| v_~z$w_buff0~0_136)))) (let ((.cse29 (= |v_P2_#t~ite13_49| |v_P2Thread1of1ForFork0_#t~ite13_1|))) (or (and .cse29 .cse9 (= v_~z$w_buff0_used~0_449 v_~z$w_buff0_used~0_450) (= |v_P2_#t~ite14_43| |v_P2Thread1of1ForFork0_#t~ite14_1|)) (and .cse8 (= |v_P2_#t~ite14_43| v_~z$w_buff0_used~0_449) (or (and .cse6 .cse4 (= |v_P2_#t~ite13_49| |v_P2_#t~ite14_43|) .cse7 (or (and (= |v_P2_#t~ite13_49| 0) .cse2 .cse4) (and (= |v_P2_#t~ite13_49| v_~z$w_buff0_used~0_450) .cse5))) (and .cse29 (= |v_P2_#t~ite14_43| v_~z$w_buff0_used~0_450) .cse1))))) (or (and (= |v_P2_#t~ite5_41| |v_P2Thread1of1ForFork0_#t~ite5_1|) .cse1 (= v_~__unbuffered_p2_EBX~0_16 v_~z~0_166)) (and .cse6 (or (and .cse5 (= |v_P2_#t~ite5_41| v_~z$w_buff1~0_126)) (and .cse2 .cse4 (= |v_P2_#t~ite5_41| v_~z$w_buff0~0_137))) .cse4 (= v_~__unbuffered_p2_EBX~0_16 |v_P2_#t~ite5_41|) .cse7)))))) InVars {P2Thread1of1ForFork0_#t~ite8=|v_P2Thread1of1ForFork0_#t~ite8_1|, P2Thread1of1ForFork0_#t~ite7=|v_P2Thread1of1ForFork0_#t~ite7_1|, P2Thread1of1ForFork0_#t~ite5=|v_P2Thread1of1ForFork0_#t~ite5_1|, ~z$w_buff0_used~0=v_~z$w_buff0_used~0_450, ~z$w_buff0~0=v_~z$w_buff0~0_137, ~z$r_buff1_thd3~0=v_~z$r_buff1_thd3~0_133, ~z$w_buff1_used~0=v_~z$w_buff1_used~0_315, P2Thread1of1ForFork0_#t~nondet4=|v_P2Thread1of1ForFork0_#t~nondet4_1|, ~z$w_buff1~0=v_~z$w_buff1~0_126, P2Thread1of1ForFork0_#t~nondet3=|v_P2Thread1of1ForFork0_#t~nondet3_1|, P2Thread1of1ForFork0_#t~ite20=|v_P2Thread1of1ForFork0_#t~ite20_1|, P2Thread1of1ForFork0_#t~ite14=|v_P2Thread1of1ForFork0_#t~ite14_1|, P2Thread1of1ForFork0_#t~ite16=|v_P2Thread1of1ForFork0_#t~ite16_1|, P2Thread1of1ForFork0_#t~ite17=|v_P2Thread1of1ForFork0_#t~ite17_1|, P2Thread1of1ForFork0_#t~ite10=|v_P2Thread1of1ForFork0_#t~ite10_1|, P2Thread1of1ForFork0_#t~ite22=|v_P2Thread1of1ForFork0_#t~ite22_1|, P2Thread1of1ForFork0_#t~ite11=|v_P2Thread1of1ForFork0_#t~ite11_1|, P2Thread1of1ForFork0_#t~ite23=|v_P2Thread1of1ForFork0_#t~ite23_1|, P2Thread1of1ForFork0_#t~ite13=|v_P2Thread1of1ForFork0_#t~ite13_1|, ~z$r_buff0_thd3~0=v_~z$r_buff0_thd3~0_170, ~z~0=v_~z~0_166, P2Thread1of1ForFork0_#t~ite19=|v_P2Thread1of1ForFork0_#t~ite19_1|} OutVars{P2Thread1of1ForFork0_#t~ite8=|v_P2Thread1of1ForFork0_#t~ite8_2|, P2Thread1of1ForFork0_#t~ite7=|v_P2Thread1of1ForFork0_#t~ite7_2|, P2Thread1of1ForFork0_#t~ite6=|v_P2Thread1of1ForFork0_#t~ite6_1|, P2Thread1of1ForFork0_#t~ite5=|v_P2Thread1of1ForFork0_#t~ite5_2|, P2Thread1of1ForFork0_#t~nondet4=|v_P2Thread1of1ForFork0_#t~nondet4_2|, ~z$w_buff1~0=v_~z$w_buff1~0_125, P2Thread1of1ForFork0_#t~nondet3=|v_P2Thread1of1ForFork0_#t~nondet3_2|, P2Thread1of1ForFork0_#t~ite20=|v_P2Thread1of1ForFork0_#t~ite20_2|, P2Thread1of1ForFork0_#t~ite25=|v_P2Thread1of1ForFork0_#t~ite25_1|, P2Thread1of1ForFork0_#t~ite21=|v_P2Thread1of1ForFork0_#t~ite21_1|, P2Thread1of1ForFork0_#t~ite22=|v_P2Thread1of1ForFork0_#t~ite22_2|, P2Thread1of1ForFork0_#t~ite23=|v_P2Thread1of1ForFork0_#t~ite23_2|, P2Thread1of1ForFork0_#t~ite24=|v_P2Thread1of1ForFork0_#t~ite24_1|, P2Thread1of1ForFork0_#t~ite9=|v_P2Thread1of1ForFork0_#t~ite9_1|, ~z$mem_tmp~0=v_~z$mem_tmp~0_48, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_16, ~z$w_buff0_used~0=v_~z$w_buff0_used~0_449, ~z$w_buff0~0=v_~z$w_buff0~0_136, ~z$r_buff1_thd3~0=v_~z$r_buff1_thd3~0_132, ~z$w_buff1_used~0=v_~z$w_buff1_used~0_314, ~z$flush_delayed~0=v_~z$flush_delayed~0_78, P2Thread1of1ForFork0_#t~ite14=|v_P2Thread1of1ForFork0_#t~ite14_2|, P2Thread1of1ForFork0_#t~ite15=|v_P2Thread1of1ForFork0_#t~ite15_1|, ~weak$$choice0~0=v_~weak$$choice0~0_20, P2Thread1of1ForFork0_#t~ite16=|v_P2Thread1of1ForFork0_#t~ite16_2|, P2Thread1of1ForFork0_#t~ite17=|v_P2Thread1of1ForFork0_#t~ite17_2|, P2Thread1of1ForFork0_#t~ite10=|v_P2Thread1of1ForFork0_#t~ite10_2|, P2Thread1of1ForFork0_#t~ite11=|v_P2Thread1of1ForFork0_#t~ite11_2|, P2Thread1of1ForFork0_#t~ite12=|v_P2Thread1of1ForFork0_#t~ite12_1|, P2Thread1of1ForFork0_#t~ite13=|v_P2Thread1of1ForFork0_#t~ite13_2|, ~z$r_buff0_thd3~0=v_~z$r_buff0_thd3~0_169, ~z~0=v_~z~0_164, P2Thread1of1ForFork0_#t~ite18=|v_P2Thread1of1ForFork0_#t~ite18_1|, ~weak$$choice2~0=v_~weak$$choice2~0_150, P2Thread1of1ForFork0_#t~ite19=|v_P2Thread1of1ForFork0_#t~ite19_2|} AuxVars[|v_P2_#t~ite22_61|, |v_P2_#t~ite23_53|, |v_P2_#t~ite13_49|, |v_P2_#t~ite10_67|, |v_P2_#t~ite11_59|, |v_P2_#t~ite16_41|, |v_P2_#t~ite19_55|, |v_P2_#t~ite7_65|, |v_P2_#t~ite20_47|, |v_P2_#t~ite17_39|, |v_P2_#t~ite5_41|, |v_P2_#t~ite8_59|, |v_P2_#t~ite14_43|] AssignedVars[P2Thread1of1ForFork0_#t~ite8, P2Thread1of1ForFork0_#t~ite7, P2Thread1of1ForFork0_#t~ite6, P2Thread1of1ForFork0_#t~ite5, P2Thread1of1ForFork0_#t~nondet4, ~z$w_buff1~0, P2Thread1of1ForFork0_#t~nondet3, P2Thread1of1ForFork0_#t~ite20, P2Thread1of1ForFork0_#t~ite25, P2Thread1of1ForFork0_#t~ite21, P2Thread1of1ForFork0_#t~ite22, P2Thread1of1ForFork0_#t~ite23, P2Thread1of1ForFork0_#t~ite24, P2Thread1of1ForFork0_#t~ite9, ~z$mem_tmp~0, ~__unbuffered_p2_EBX~0, ~z$w_buff0_used~0, ~z$w_buff0~0, ~z$r_buff1_thd3~0, ~z$w_buff1_used~0, ~z$flush_delayed~0, P2Thread1of1ForFork0_#t~ite14, P2Thread1of1ForFork0_#t~ite15, ~weak$$choice0~0, P2Thread1of1ForFork0_#t~ite16, P2Thread1of1ForFork0_#t~ite17, P2Thread1of1ForFork0_#t~ite10, P2Thread1of1ForFork0_#t~ite11, P2Thread1of1ForFork0_#t~ite12, P2Thread1of1ForFork0_#t~ite13, ~z$r_buff0_thd3~0, ~z~0, P2Thread1of1ForFork0_#t~ite18, ~weak$$choice2~0, P2Thread1of1ForFork0_#t~ite19][197], [154#true, Black: 228#(= ~x~0 0), 190#true, 66#L3true, 118#L840true, P1Thread1of1ForFork3InUse, P0Thread1of1ForFork1InUse, P3Thread1of1ForFork2InUse, P2Thread1of1ForFork0InUse, Black: 193#(or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0))), 45#L802true, Black: 192#(= ~y~0 0), 226#true, 264#(= ~y~0 1), 286#true, 325#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (<= 0 ~main$tmp_guard0~0)), 97#L761true, Black: 289#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 297#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 288#(= ~__unbuffered_p2_EAX~0 0), 34#L771true, Black: 299#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (= ~__unbuffered_p2_EAX~0 0)), Black: 301#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 295#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (= ~__unbuffered_p2_EAX~0 0)), Black: 156#(= ~__unbuffered_p3_EAX~0 0), Black: 293#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (= ~__unbuffered_p2_EAX~0 0)), Black: 172#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0))) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 157#(or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0))), Black: 166#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 168#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0))) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 176#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0))) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 174#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 158#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 229#(or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0)))]) [2021-12-21 15:01:32,724 INFO L384 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2021-12-21 15:01:32,725 INFO L387 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2021-12-21 15:01:32,725 INFO L387 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2021-12-21 15:01:32,725 INFO L387 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2021-12-21 15:01:32,938 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1167] L786-->L802: Formula: (let ((.cse31 (= (mod v_~z$w_buff1_used~0_315 256) 0)) (.cse25 (= (mod v_~z$r_buff0_thd3~0_170 256) 0)) (.cse11 (= (mod v_~z$r_buff1_thd3~0_133 256) 0))) (let ((.cse16 (not .cse11)) (.cse2 (not .cse25)) (.cse23 (and .cse25 .cse11)) (.cse30 (= (mod v_~z$w_buff0_used~0_450 256) 0)) (.cse24 (and .cse25 .cse31)) (.cse8 (= (mod v_~weak$$choice2~0_150 256) 0)) (.cse12 (= (mod v_~z$w_buff1_used~0_314 256) 0)) (.cse13 (= (mod v_~z$w_buff0_used~0_449 256) 0))) (let ((.cse21 (or .cse25 .cse13)) (.cse15 (not .cse13)) (.cse18 (not .cse12)) (.cse9 (not .cse8)) (.cse1 (or .cse23 .cse30 .cse24)) (.cse6 (or (not .cse31) .cse2)) (.cse5 (or .cse25 .cse30)) (.cse4 (not .cse30)) (.cse7 (or .cse2 .cse16))) (and (let ((.cse0 (= |v_P2_#t~ite10_67| |v_P2Thread1of1ForFork0_#t~ite10_1|))) (or (and (or (and .cse0 .cse1 (= |v_P2_#t~ite11_59| v_~z$w_buff1~0_126)) (and (let ((.cse3 (= |v_P2_#t~ite10_67| v_~z$w_buff1~0_126))) (or (and .cse2 .cse3 .cse4) (and .cse3 .cse5))) (= |v_P2_#t~ite10_67| |v_P2_#t~ite11_59|) .cse6 .cse4 .cse7)) .cse8 (= |v_P2_#t~ite11_59| v_~z$w_buff1~0_125)) (and (= |v_P2_#t~ite11_59| |v_P2Thread1of1ForFork0_#t~ite11_1|) .cse9 .cse0 (= v_~z$w_buff1~0_126 v_~z$w_buff1~0_125)))) (= v_~weak$$choice2~0_150 |v_P2Thread1of1ForFork0_#t~nondet4_1|) (= |v_P2Thread1of1ForFork0_#t~nondet3_1| v_~weak$$choice0~0_20) (= v_~z$flush_delayed~0_78 0) (= v_~z$mem_tmp~0_48 v_~z~0_166) (let ((.cse14 (= |v_P2_#t~ite22_61| |v_P2Thread1of1ForFork0_#t~ite22_1|))) (or (and .cse8 (= |v_P2_#t~ite23_53| v_~z$r_buff1_thd3~0_132) (let ((.cse10 (= (mod v_~z$r_buff0_thd3~0_169 256) 0))) (or (and (= |v_P2_#t~ite23_53| v_~z$r_buff1_thd3~0_133) (or (and .cse10 .cse11) (and .cse10 .cse12) .cse13) .cse14) (let ((.cse17 (not .cse10))) (and .cse15 (or .cse16 .cse17) (= |v_P2_#t~ite22_61| |v_P2_#t~ite23_53|) (or .cse18 .cse17) (let ((.cse19 (= |v_P2_#t~ite22_61| 0))) (or (and .cse19 (or .cse10 .cse13)) (and .cse15 .cse19 .cse17)))))))) (and (= |v_P2_#t~ite23_53| |v_P2Thread1of1ForFork0_#t~ite23_1|) .cse9 .cse14 (= v_~z$r_buff1_thd3~0_133 v_~z$r_buff1_thd3~0_132)))) (let ((.cse20 (= |v_P2_#t~ite16_41| |v_P2Thread1of1ForFork0_#t~ite16_1|))) (or (and (= |v_P2_#t~ite17_39| |v_P2Thread1of1ForFork0_#t~ite17_1|) .cse20 .cse9 (= v_~z$w_buff1_used~0_315 v_~z$w_buff1_used~0_314)) (and .cse8 (or (and .cse6 .cse15 (let ((.cse22 (= |v_P2_#t~ite16_41| 0))) (or (and .cse21 .cse22) (and .cse15 .cse2 .cse22))) .cse7 (= |v_P2_#t~ite16_41| |v_P2_#t~ite17_39|)) (and (or .cse23 .cse24 .cse13) .cse20 (= |v_P2_#t~ite17_39| v_~z$w_buff1_used~0_315))) (= |v_P2_#t~ite17_39| v_~z$w_buff1_used~0_314)))) (or (and .cse9 (= v_~z$mem_tmp~0_48 v_~z~0_164)) (and .cse8 (= v_~__unbuffered_p2_EBX~0_16 v_~z~0_164))) (let ((.cse26 (= |v_P2_#t~ite19_55| |v_P2Thread1of1ForFork0_#t~ite19_1|))) (or (and .cse8 (or (and (= |v_P2_#t~ite20_47| v_~z$r_buff0_thd3~0_170) (or .cse23 (and .cse25 .cse12) .cse13) .cse26) (and (or (and .cse21 (= |v_P2_#t~ite19_55| v_~z$r_buff0_thd3~0_170)) (and .cse15 (= |v_P2_#t~ite19_55| 0) .cse2)) .cse15 (= |v_P2_#t~ite19_55| |v_P2_#t~ite20_47|) (or .cse2 .cse18) .cse7)) (= |v_P2_#t~ite20_47| v_~z$r_buff0_thd3~0_169)) (and .cse9 (= v_~z$r_buff0_thd3~0_170 v_~z$r_buff0_thd3~0_169) (= |v_P2_#t~ite20_47| |v_P2Thread1of1ForFork0_#t~ite20_1|) .cse26))) (let ((.cse27 (= |v_P2_#t~ite7_65| |v_P2Thread1of1ForFork0_#t~ite7_1|))) (or (and (= v_~z$w_buff0~0_137 v_~z$w_buff0~0_136) .cse9 (= |v_P2_#t~ite8_59| |v_P2Thread1of1ForFork0_#t~ite8_1|) .cse27) (and .cse8 (or (and .cse6 .cse4 (= |v_P2_#t~ite7_65| |v_P2_#t~ite8_59|) (let ((.cse28 (= |v_P2_#t~ite7_65| v_~z$w_buff0~0_137))) (or (and .cse2 .cse4 .cse28) (and .cse5 .cse28))) .cse7) (and (= |v_P2_#t~ite8_59| v_~z$w_buff0~0_137) .cse27 .cse1)) (= |v_P2_#t~ite8_59| v_~z$w_buff0~0_136)))) (let ((.cse29 (= |v_P2_#t~ite13_49| |v_P2Thread1of1ForFork0_#t~ite13_1|))) (or (and .cse29 .cse9 (= v_~z$w_buff0_used~0_449 v_~z$w_buff0_used~0_450) (= |v_P2_#t~ite14_43| |v_P2Thread1of1ForFork0_#t~ite14_1|)) (and .cse8 (= |v_P2_#t~ite14_43| v_~z$w_buff0_used~0_449) (or (and .cse6 .cse4 (= |v_P2_#t~ite13_49| |v_P2_#t~ite14_43|) .cse7 (or (and (= |v_P2_#t~ite13_49| 0) .cse2 .cse4) (and (= |v_P2_#t~ite13_49| v_~z$w_buff0_used~0_450) .cse5))) (and .cse29 (= |v_P2_#t~ite14_43| v_~z$w_buff0_used~0_450) .cse1))))) (or (and (= |v_P2_#t~ite5_41| |v_P2Thread1of1ForFork0_#t~ite5_1|) .cse1 (= v_~__unbuffered_p2_EBX~0_16 v_~z~0_166)) (and .cse6 (or (and .cse5 (= |v_P2_#t~ite5_41| v_~z$w_buff1~0_126)) (and .cse2 .cse4 (= |v_P2_#t~ite5_41| v_~z$w_buff0~0_137))) .cse4 (= v_~__unbuffered_p2_EBX~0_16 |v_P2_#t~ite5_41|) .cse7)))))) InVars {P2Thread1of1ForFork0_#t~ite8=|v_P2Thread1of1ForFork0_#t~ite8_1|, P2Thread1of1ForFork0_#t~ite7=|v_P2Thread1of1ForFork0_#t~ite7_1|, P2Thread1of1ForFork0_#t~ite5=|v_P2Thread1of1ForFork0_#t~ite5_1|, ~z$w_buff0_used~0=v_~z$w_buff0_used~0_450, ~z$w_buff0~0=v_~z$w_buff0~0_137, ~z$r_buff1_thd3~0=v_~z$r_buff1_thd3~0_133, ~z$w_buff1_used~0=v_~z$w_buff1_used~0_315, P2Thread1of1ForFork0_#t~nondet4=|v_P2Thread1of1ForFork0_#t~nondet4_1|, ~z$w_buff1~0=v_~z$w_buff1~0_126, P2Thread1of1ForFork0_#t~nondet3=|v_P2Thread1of1ForFork0_#t~nondet3_1|, P2Thread1of1ForFork0_#t~ite20=|v_P2Thread1of1ForFork0_#t~ite20_1|, P2Thread1of1ForFork0_#t~ite14=|v_P2Thread1of1ForFork0_#t~ite14_1|, P2Thread1of1ForFork0_#t~ite16=|v_P2Thread1of1ForFork0_#t~ite16_1|, P2Thread1of1ForFork0_#t~ite17=|v_P2Thread1of1ForFork0_#t~ite17_1|, P2Thread1of1ForFork0_#t~ite10=|v_P2Thread1of1ForFork0_#t~ite10_1|, P2Thread1of1ForFork0_#t~ite22=|v_P2Thread1of1ForFork0_#t~ite22_1|, P2Thread1of1ForFork0_#t~ite11=|v_P2Thread1of1ForFork0_#t~ite11_1|, P2Thread1of1ForFork0_#t~ite23=|v_P2Thread1of1ForFork0_#t~ite23_1|, P2Thread1of1ForFork0_#t~ite13=|v_P2Thread1of1ForFork0_#t~ite13_1|, ~z$r_buff0_thd3~0=v_~z$r_buff0_thd3~0_170, ~z~0=v_~z~0_166, P2Thread1of1ForFork0_#t~ite19=|v_P2Thread1of1ForFork0_#t~ite19_1|} OutVars{P2Thread1of1ForFork0_#t~ite8=|v_P2Thread1of1ForFork0_#t~ite8_2|, P2Thread1of1ForFork0_#t~ite7=|v_P2Thread1of1ForFork0_#t~ite7_2|, P2Thread1of1ForFork0_#t~ite6=|v_P2Thread1of1ForFork0_#t~ite6_1|, P2Thread1of1ForFork0_#t~ite5=|v_P2Thread1of1ForFork0_#t~ite5_2|, P2Thread1of1ForFork0_#t~nondet4=|v_P2Thread1of1ForFork0_#t~nondet4_2|, ~z$w_buff1~0=v_~z$w_buff1~0_125, P2Thread1of1ForFork0_#t~nondet3=|v_P2Thread1of1ForFork0_#t~nondet3_2|, P2Thread1of1ForFork0_#t~ite20=|v_P2Thread1of1ForFork0_#t~ite20_2|, P2Thread1of1ForFork0_#t~ite25=|v_P2Thread1of1ForFork0_#t~ite25_1|, P2Thread1of1ForFork0_#t~ite21=|v_P2Thread1of1ForFork0_#t~ite21_1|, P2Thread1of1ForFork0_#t~ite22=|v_P2Thread1of1ForFork0_#t~ite22_2|, P2Thread1of1ForFork0_#t~ite23=|v_P2Thread1of1ForFork0_#t~ite23_2|, P2Thread1of1ForFork0_#t~ite24=|v_P2Thread1of1ForFork0_#t~ite24_1|, P2Thread1of1ForFork0_#t~ite9=|v_P2Thread1of1ForFork0_#t~ite9_1|, ~z$mem_tmp~0=v_~z$mem_tmp~0_48, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_16, ~z$w_buff0_used~0=v_~z$w_buff0_used~0_449, ~z$w_buff0~0=v_~z$w_buff0~0_136, ~z$r_buff1_thd3~0=v_~z$r_buff1_thd3~0_132, ~z$w_buff1_used~0=v_~z$w_buff1_used~0_314, ~z$flush_delayed~0=v_~z$flush_delayed~0_78, P2Thread1of1ForFork0_#t~ite14=|v_P2Thread1of1ForFork0_#t~ite14_2|, P2Thread1of1ForFork0_#t~ite15=|v_P2Thread1of1ForFork0_#t~ite15_1|, ~weak$$choice0~0=v_~weak$$choice0~0_20, P2Thread1of1ForFork0_#t~ite16=|v_P2Thread1of1ForFork0_#t~ite16_2|, P2Thread1of1ForFork0_#t~ite17=|v_P2Thread1of1ForFork0_#t~ite17_2|, P2Thread1of1ForFork0_#t~ite10=|v_P2Thread1of1ForFork0_#t~ite10_2|, P2Thread1of1ForFork0_#t~ite11=|v_P2Thread1of1ForFork0_#t~ite11_2|, P2Thread1of1ForFork0_#t~ite12=|v_P2Thread1of1ForFork0_#t~ite12_1|, P2Thread1of1ForFork0_#t~ite13=|v_P2Thread1of1ForFork0_#t~ite13_2|, ~z$r_buff0_thd3~0=v_~z$r_buff0_thd3~0_169, ~z~0=v_~z~0_164, P2Thread1of1ForFork0_#t~ite18=|v_P2Thread1of1ForFork0_#t~ite18_1|, ~weak$$choice2~0=v_~weak$$choice2~0_150, P2Thread1of1ForFork0_#t~ite19=|v_P2Thread1of1ForFork0_#t~ite19_2|} AuxVars[|v_P2_#t~ite22_61|, |v_P2_#t~ite23_53|, |v_P2_#t~ite13_49|, |v_P2_#t~ite10_67|, |v_P2_#t~ite11_59|, |v_P2_#t~ite16_41|, |v_P2_#t~ite19_55|, |v_P2_#t~ite7_65|, |v_P2_#t~ite20_47|, |v_P2_#t~ite17_39|, |v_P2_#t~ite5_41|, |v_P2_#t~ite8_59|, |v_P2_#t~ite14_43|] AssignedVars[P2Thread1of1ForFork0_#t~ite8, P2Thread1of1ForFork0_#t~ite7, P2Thread1of1ForFork0_#t~ite6, P2Thread1of1ForFork0_#t~ite5, P2Thread1of1ForFork0_#t~nondet4, ~z$w_buff1~0, P2Thread1of1ForFork0_#t~nondet3, P2Thread1of1ForFork0_#t~ite20, P2Thread1of1ForFork0_#t~ite25, P2Thread1of1ForFork0_#t~ite21, P2Thread1of1ForFork0_#t~ite22, P2Thread1of1ForFork0_#t~ite23, P2Thread1of1ForFork0_#t~ite24, P2Thread1of1ForFork0_#t~ite9, ~z$mem_tmp~0, ~__unbuffered_p2_EBX~0, ~z$w_buff0_used~0, ~z$w_buff0~0, ~z$r_buff1_thd3~0, ~z$w_buff1_used~0, ~z$flush_delayed~0, P2Thread1of1ForFork0_#t~ite14, P2Thread1of1ForFork0_#t~ite15, ~weak$$choice0~0, P2Thread1of1ForFork0_#t~ite16, P2Thread1of1ForFork0_#t~ite17, P2Thread1of1ForFork0_#t~ite10, P2Thread1of1ForFork0_#t~ite11, P2Thread1of1ForFork0_#t~ite12, P2Thread1of1ForFork0_#t~ite13, ~z$r_buff0_thd3~0, ~z~0, P2Thread1of1ForFork0_#t~ite18, ~weak$$choice2~0, P2Thread1of1ForFork0_#t~ite19][197], [154#true, Black: 228#(= ~x~0 0), 137#L3-1true, 190#true, 118#L840true, P1Thread1of1ForFork3InUse, P0Thread1of1ForFork1InUse, P3Thread1of1ForFork2InUse, P2Thread1of1ForFork0InUse, Black: 193#(or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0))), 45#L802true, Black: 192#(= ~y~0 0), 226#true, 264#(= ~y~0 1), 286#true, 325#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (<= 0 ~main$tmp_guard0~0)), 97#L761true, Black: 289#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 297#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 288#(= ~__unbuffered_p2_EAX~0 0), 34#L771true, Black: 299#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (= ~__unbuffered_p2_EAX~0 0)), Black: 301#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 295#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (= ~__unbuffered_p2_EAX~0 0)), Black: 156#(= ~__unbuffered_p3_EAX~0 0), Black: 172#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0))) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 293#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (= ~__unbuffered_p2_EAX~0 0)), Black: 157#(or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0))), Black: 166#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 168#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0))) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 176#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0))) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 174#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 158#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 229#(or (not (= 2 ~y~0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~__unbuffered_p2_EAX~0)))]) [2021-12-21 15:01:32,939 INFO L384 tUnfolder$Statistics]: this new event has 91 ancestors and is cut-off event [2021-12-21 15:01:32,939 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2021-12-21 15:01:32,939 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2021-12-21 15:01:32,939 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2021-12-21 15:01:33,733 INFO L129 PetriNetUnfolder]: 14832/26084 cut-off events. [2021-12-21 15:01:33,734 INFO L130 PetriNetUnfolder]: For 78830/117165 co-relation queries the response was YES. [2021-12-21 15:01:33,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77603 conditions, 26084 events. 14832/26084 cut-off events. For 78830/117165 co-relation queries the response was YES. Maximal size of possible extension queue 1964. Compared 238943 event pairs, 561 based on Foata normal form. 802/24528 useless extension candidates. Maximal degree in co-relation 77496. Up to 8819 conditions per place. [2021-12-21 15:01:33,945 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 80 selfloop transitions, 20 changer transitions 21/240 dead transitions. [2021-12-21 15:01:33,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 240 transitions, 1767 flow [2021-12-21 15:01:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:01:33,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:01:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1201 transitions. [2021-12-21 15:01:33,949 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8830882352941176 [2021-12-21 15:01:33,949 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1201 transitions. [2021-12-21 15:01:33,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1201 transitions. [2021-12-21 15:01:33,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:01:33,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1201 transitions. [2021-12-21 15:01:33,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 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) [2021-12-21 15:01:33,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2021-12-21 15:01:33,956 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2021-12-21 15:01:33,956 INFO L186 Difference]: Start difference. First operand has 163 places, 144 transitions, 872 flow. Second operand 10 states and 1201 transitions. [2021-12-21 15:01:33,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 240 transitions, 1767 flow [2021-12-21 15:01:34,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 240 transitions, 1738 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-12-21 15:01:34,015 INFO L242 Difference]: Finished difference. Result has 163 places, 162 transitions, 986 flow [2021-12-21 15:01:34,015 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=986, PETRI_PLACES=163, PETRI_TRANSITIONS=162} [2021-12-21 15:01:34,016 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 20 predicate places. [2021-12-21 15:01:34,016 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 162 transitions, 986 flow [2021-12-21 15:01:34,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.33333333333333) internal successors, (680), 6 states have internal predecessors, (680), 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) [2021-12-21 15:01:34,017 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:34,017 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] [2021-12-21 15:01:34,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 15:01:34,017 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:34,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:34,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1694664649, now seen corresponding path program 1 times [2021-12-21 15:01:34,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:34,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626264334] [2021-12-21 15:01:34,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:34,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:34,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:34,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:34,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626264334] [2021-12-21 15:01:34,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626264334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:34,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:34,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 15:01:34,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011440263] [2021-12-21 15:01:34,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:34,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 15:01:34,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:34,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 15:01:34,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 15:01:34,134 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2021-12-21 15:01:34,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 162 transitions, 986 flow. Second operand has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 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) [2021-12-21 15:01:34,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:34,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2021-12-21 15:01:34,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:36,022 INFO L129 PetriNetUnfolder]: 3708/12413 cut-off events. [2021-12-21 15:01:36,022 INFO L130 PetriNetUnfolder]: For 29867/34448 co-relation queries the response was YES. [2021-12-21 15:01:36,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37817 conditions, 12413 events. 3708/12413 cut-off events. For 29867/34448 co-relation queries the response was YES. Maximal size of possible extension queue 1076. Compared 154406 event pairs, 1405 based on Foata normal form. 505/11760 useless extension candidates. Maximal degree in co-relation 37710. Up to 3453 conditions per place. [2021-12-21 15:01:36,131 INFO L132 encePairwiseOnDemand]: 130/136 looper letters, 52 selfloop transitions, 21 changer transitions 4/204 dead transitions. [2021-12-21 15:01:36,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 204 transitions, 1476 flow [2021-12-21 15:01:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:01:36,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:01:36,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1072 transitions. [2021-12-21 15:01:36,134 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8758169934640523 [2021-12-21 15:01:36,134 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1072 transitions. [2021-12-21 15:01:36,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1072 transitions. [2021-12-21 15:01:36,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:01:36,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1072 transitions. [2021-12-21 15:01:36,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.11111111111111) internal successors, (1072), 9 states have internal predecessors, (1072), 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) [2021-12-21 15:01:36,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-12-21 15:01:36,140 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-12-21 15:01:36,140 INFO L186 Difference]: Start difference. First operand has 163 places, 162 transitions, 986 flow. Second operand 9 states and 1072 transitions. [2021-12-21 15:01:36,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 204 transitions, 1476 flow [2021-12-21 15:01:36,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 204 transitions, 1474 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-21 15:01:36,212 INFO L242 Difference]: Finished difference. Result has 177 places, 169 transitions, 1131 flow [2021-12-21 15:01:36,213 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1131, PETRI_PLACES=177, PETRI_TRANSITIONS=169} [2021-12-21 15:01:36,215 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 34 predicate places. [2021-12-21 15:01:36,215 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 169 transitions, 1131 flow [2021-12-21 15:01:36,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 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) [2021-12-21 15:01:36,216 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:36,216 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] [2021-12-21 15:01:36,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 15:01:36,216 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:36,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:36,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1610490297, now seen corresponding path program 1 times [2021-12-21 15:01:36,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:36,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562295385] [2021-12-21 15:01:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:36,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:36,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:36,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:36,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562295385] [2021-12-21 15:01:36,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562295385] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:36,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:36,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:01:36,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876805710] [2021-12-21 15:01:36,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:36,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:01:36,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:36,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:01:36,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:01:36,320 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2021-12-21 15:01:36,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 169 transitions, 1131 flow. Second operand has 7 states, 7 states have (on average 113.14285714285714) internal successors, (792), 7 states have internal predecessors, (792), 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) [2021-12-21 15:01:36,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:36,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2021-12-21 15:01:36,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:41,570 INFO L129 PetriNetUnfolder]: 20324/37632 cut-off events. [2021-12-21 15:01:41,570 INFO L130 PetriNetUnfolder]: For 150417/199880 co-relation queries the response was YES. [2021-12-21 15:01:41,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147465 conditions, 37632 events. 20324/37632 cut-off events. For 150417/199880 co-relation queries the response was YES. Maximal size of possible extension queue 2946. Compared 388730 event pairs, 441 based on Foata normal form. 2161/37470 useless extension candidates. Maximal degree in co-relation 147351. Up to 11428 conditions per place. [2021-12-21 15:01:41,916 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 121 selfloop transitions, 38 changer transitions 6/291 dead transitions. [2021-12-21 15:01:41,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 291 transitions, 2516 flow [2021-12-21 15:01:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-21 15:01:41,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-21 15:01:41,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1565 transitions. [2021-12-21 15:01:41,920 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8851809954751131 [2021-12-21 15:01:41,920 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1565 transitions. [2021-12-21 15:01:41,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1565 transitions. [2021-12-21 15:01:41,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:01:41,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1565 transitions. [2021-12-21 15:01:41,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 120.38461538461539) internal successors, (1565), 13 states have internal predecessors, (1565), 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) [2021-12-21 15:01:41,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-21 15:01:41,928 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-21 15:01:41,928 INFO L186 Difference]: Start difference. First operand has 177 places, 169 transitions, 1131 flow. Second operand 13 states and 1565 transitions. [2021-12-21 15:01:41,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 291 transitions, 2516 flow [2021-12-21 15:01:42,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 291 transitions, 2481 flow, removed 11 selfloop flow, removed 1 redundant places. [2021-12-21 15:01:42,667 INFO L242 Difference]: Finished difference. Result has 194 places, 189 transitions, 1389 flow [2021-12-21 15:01:42,668 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1389, PETRI_PLACES=194, PETRI_TRANSITIONS=189} [2021-12-21 15:01:42,668 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 51 predicate places. [2021-12-21 15:01:42,668 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 189 transitions, 1389 flow [2021-12-21 15:01:42,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 113.14285714285714) internal successors, (792), 7 states have internal predecessors, (792), 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) [2021-12-21 15:01:42,669 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:42,669 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, 1, 1] [2021-12-21 15:01:42,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 15:01:42,669 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:42,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:42,670 INFO L85 PathProgramCache]: Analyzing trace with hash -624417244, now seen corresponding path program 1 times [2021-12-21 15:01:42,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:42,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018468426] [2021-12-21 15:01:42,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:42,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:42,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:42,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:42,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018468426] [2021-12-21 15:01:42,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018468426] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:42,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:42,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 15:01:42,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387079140] [2021-12-21 15:01:42,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:42,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:01:42,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:42,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:01:42,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:01:42,812 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2021-12-21 15:01:42,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 189 transitions, 1389 flow. Second operand has 8 states, 8 states have (on average 113.125) internal successors, (905), 8 states have internal predecessors, (905), 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) [2021-12-21 15:01:42,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:42,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2021-12-21 15:01:42,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:48,759 INFO L129 PetriNetUnfolder]: 19507/37122 cut-off events. [2021-12-21 15:01:48,759 INFO L130 PetriNetUnfolder]: For 229499/280240 co-relation queries the response was YES. [2021-12-21 15:01:49,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176187 conditions, 37122 events. 19507/37122 cut-off events. For 229499/280240 co-relation queries the response was YES. Maximal size of possible extension queue 2965. Compared 396292 event pairs, 362 based on Foata normal form. 2379/37248 useless extension candidates. Maximal degree in co-relation 176065. Up to 10784 conditions per place. [2021-12-21 15:01:49,155 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 103 selfloop transitions, 54 changer transitions 59/334 dead transitions. [2021-12-21 15:01:49,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 334 transitions, 3210 flow [2021-12-21 15:01:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-21 15:01:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-21 15:01:49,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1928 transitions. [2021-12-21 15:01:49,160 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8860294117647058 [2021-12-21 15:01:49,160 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1928 transitions. [2021-12-21 15:01:49,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1928 transitions. [2021-12-21 15:01:49,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:01:49,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1928 transitions. [2021-12-21 15:01:49,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 120.5) internal successors, (1928), 16 states have internal predecessors, (1928), 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) [2021-12-21 15:01:49,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 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) [2021-12-21 15:01:49,169 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 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) [2021-12-21 15:01:49,169 INFO L186 Difference]: Start difference. First operand has 194 places, 189 transitions, 1389 flow. Second operand 16 states and 1928 transitions. [2021-12-21 15:01:49,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 334 transitions, 3210 flow [2021-12-21 15:01:54,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 334 transitions, 3089 flow, removed 48 selfloop flow, removed 5 redundant places. [2021-12-21 15:01:54,607 INFO L242 Difference]: Finished difference. Result has 208 places, 203 transitions, 1600 flow [2021-12-21 15:01:54,608 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1276, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1600, PETRI_PLACES=208, PETRI_TRANSITIONS=203} [2021-12-21 15:01:54,608 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 65 predicate places. [2021-12-21 15:01:54,609 INFO L470 AbstractCegarLoop]: Abstraction has has 208 places, 203 transitions, 1600 flow [2021-12-21 15:01:54,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 113.125) internal successors, (905), 8 states have internal predecessors, (905), 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) [2021-12-21 15:01:54,609 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:01:54,609 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, 1, 1, 1, 1, 1] [2021-12-21 15:01:54,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 15:01:54,610 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-21 15:01:54,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:01:54,610 INFO L85 PathProgramCache]: Analyzing trace with hash 663052898, now seen corresponding path program 1 times [2021-12-21 15:01:54,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:01:54,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547427848] [2021-12-21 15:01:54,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:01:54,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:01:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:01:54,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:01:54,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:01:54,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547427848] [2021-12-21 15:01:54,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547427848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:01:54,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:01:54,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 15:01:54,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771819206] [2021-12-21 15:01:54,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:01:54,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 15:01:54,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:01:54,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 15:01:54,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-21 15:01:54,773 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2021-12-21 15:01:54,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 203 transitions, 1600 flow. Second operand has 9 states, 9 states have (on average 113.11111111111111) internal successors, (1018), 9 states have internal predecessors, (1018), 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) [2021-12-21 15:01:54,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:01:54,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2021-12-21 15:01:54,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:01:59,952 INFO L129 PetriNetUnfolder]: 18526/35965 cut-off events. [2021-12-21 15:01:59,953 INFO L130 PetriNetUnfolder]: For 235550/284893 co-relation queries the response was YES. [2021-12-21 15:02:00,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168319 conditions, 35965 events. 18526/35965 cut-off events. For 235550/284893 co-relation queries the response was YES. Maximal size of possible extension queue 2953. Compared 392475 event pairs, 352 based on Foata normal form. 1772/35497 useless extension candidates. Maximal degree in co-relation 168274. Up to 6514 conditions per place. [2021-12-21 15:02:00,649 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 73 selfloop transitions, 53 changer transitions 80/320 dead transitions. [2021-12-21 15:02:00,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 320 transitions, 3084 flow [2021-12-21 15:02:00,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-21 15:02:00,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-21 15:02:00,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2248 transitions. [2021-12-21 15:02:00,653 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8699690402476781 [2021-12-21 15:02:00,654 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2248 transitions. [2021-12-21 15:02:00,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2248 transitions. [2021-12-21 15:02:00,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:02:00,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2248 transitions. [2021-12-21 15:02:00,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 118.3157894736842) internal successors, (2248), 19 states have internal predecessors, (2248), 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) [2021-12-21 15:02:00,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 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) [2021-12-21 15:02:00,664 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 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) [2021-12-21 15:02:00,664 INFO L186 Difference]: Start difference. First operand has 208 places, 203 transitions, 1600 flow. Second operand 19 states and 2248 transitions. [2021-12-21 15:02:00,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 320 transitions, 3084 flow