./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c --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/weaver/chl-chromosome-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 15:15:27,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 15:15:27,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 15:15:27,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 15:15:27,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 15:15:27,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 15:15:27,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 15:15:27,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 15:15:27,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 15:15:27,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 15:15:27,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 15:15:27,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 15:15:27,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 15:15:27,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 15:15:27,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 15:15:27,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 15:15:27,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 15:15:27,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 15:15:27,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 15:15:27,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 15:15:27,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 15:15:27,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 15:15:27,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 15:15:27,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 15:15:27,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 15:15:27,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 15:15:27,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 15:15:27,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 15:15:27,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 15:15:27,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 15:15:27,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 15:15:27,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 15:15:27,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 15:15:27,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 15:15:27,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 15:15:27,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 15:15:27,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 15:15:27,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 15:15:27,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 15:15:27,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 15:15:27,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 15:15:27,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 15:15:27,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 15:15:27,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 15:15:27,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 15:15:27,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 15:15:27,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 15:15:27,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 15:15:27,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 15:15:27,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 15:15:27,628 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 15:15:27,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 15:15:27,629 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 15:15:27,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 15:15:27,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 15:15:27,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 15:15:27,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 15:15:27,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 15:15:27,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 15:15:27,630 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 15:15:27,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 15:15:27,630 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 15:15:27,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 15:15:27,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 15:15:27,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 15:15:27,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 15:15:27,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:15:27,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 15:15:27,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 15:15:27,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 15:15:27,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 15:15:27,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 15:15:27,632 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 15:15:27,632 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 15:15:27,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 15:15:27,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 15:15:27,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f [2021-12-21 15:15:27,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 15:15:27,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 15:15:27,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 15:15:27,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 15:15:27,837 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 15:15:27,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2021-12-21 15:15:27,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c14a2f9/54c7411020af44fdbf389f590ff95c31/FLAGdf3dcc3fb [2021-12-21 15:15:28,274 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 15:15:28,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2021-12-21 15:15:28,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c14a2f9/54c7411020af44fdbf389f590ff95c31/FLAGdf3dcc3fb [2021-12-21 15:15:28,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c14a2f9/54c7411020af44fdbf389f590ff95c31 [2021-12-21 15:15:28,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 15:15:28,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 15:15:28,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 15:15:28,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 15:15:28,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 15:15:28,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407ba1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28, skipping insertion in model container [2021-12-21 15:15:28,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 15:15:28,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 15:15:28,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2021-12-21 15:15:28,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:15:28,473 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 15:15:28,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2021-12-21 15:15:28,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:15:28,509 INFO L208 MainTranslator]: Completed translation [2021-12-21 15:15:28,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28 WrapperNode [2021-12-21 15:15:28,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 15:15:28,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 15:15:28,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 15:15:28,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 15:15:28,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,540 INFO L137 Inliner]: procedures = 25, calls = 37, calls flagged for inlining = 15, calls inlined = 19, statements flattened = 202 [2021-12-21 15:15:28,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 15:15:28,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 15:15:28,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 15:15:28,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 15:15:28,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 15:15:28,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 15:15:28,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 15:15:28,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 15:15:28,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (1/1) ... [2021-12-21 15:15:28,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:15:28,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:15:28,600 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 15:15:28,601 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 15:15:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 15:15:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 15:15:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 15:15:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 15:15:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-21 15:15:28,636 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-21 15:15:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-21 15:15:28,636 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-21 15:15:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 15:15:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 15:15:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 15:15:28,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 15:15:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 15:15:28,640 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 15:15:28,709 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 15:15:28,711 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 15:15:29,018 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 15:15:29,026 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 15:15:29,026 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-21 15:15:29,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:15:29 BoogieIcfgContainer [2021-12-21 15:15:29,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 15:15:29,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 15:15:29,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 15:15:29,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 15:15:29,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:15:28" (1/3) ... [2021-12-21 15:15:29,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25397642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:15:29, skipping insertion in model container [2021-12-21 15:15:29,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:15:28" (2/3) ... [2021-12-21 15:15:29,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25397642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:15:29, skipping insertion in model container [2021-12-21 15:15:29,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:15:29" (3/3) ... [2021-12-21 15:15:29,034 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2021-12-21 15:15:29,038 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-21 15:15:29,038 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 15:15:29,039 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 15:15:29,039 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-21 15:15:29,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,085 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,085 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,085 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,085 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,094 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,094 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,094 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,094 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,094 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,094 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,095 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,095 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,095 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,095 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,095 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,096 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,096 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,096 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,096 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,096 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,096 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,097 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,097 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,097 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,101 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,101 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,101 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,101 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,102 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,102 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,102 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,102 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,102 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,102 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,103 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,103 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,103 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,103 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,104 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,105 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,105 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,105 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,106 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,106 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,106 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,106 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,106 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,106 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,107 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,107 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,107 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,107 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,107 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,109 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,109 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,109 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,112 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,112 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,112 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,112 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,112 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,113 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,113 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,113 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,113 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,114 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,114 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,114 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,114 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,115 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,115 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,115 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,115 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,115 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,121 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,121 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,121 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,122 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,122 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,122 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,122 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,123 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,123 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,123 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,125 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,125 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,125 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,125 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,128 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,129 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,132 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,132 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,132 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,132 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,133 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,133 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,133 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,133 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,134 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,138 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,138 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,138 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,139 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,140 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,140 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,141 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,141 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,142 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,142 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,142 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,142 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,142 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,142 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,143 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,143 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,148 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,149 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,149 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,149 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,150 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,150 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,150 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,150 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,150 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,150 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,151 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,151 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,152 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,158 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,159 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,159 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,159 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,159 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,159 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,159 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,160 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,167 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,171 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,171 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,171 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,171 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,171 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,171 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,173 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,173 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:15:29,179 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-21 15:15:29,218 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:15:29,224 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 15:15:29,224 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 15:15:29,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 256 places, 272 transitions, 560 flow [2021-12-21 15:15:29,352 INFO L129 PetriNetUnfolder]: 23/270 cut-off events. [2021-12-21 15:15:29,355 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-21 15:15:29,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 270 events. 23/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 322 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 171. Up to 2 conditions per place. [2021-12-21 15:15:29,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 272 transitions, 560 flow [2021-12-21 15:15:29,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 261 transitions, 534 flow [2021-12-21 15:15:29,436 INFO L129 PetriNetUnfolder]: 23/260 cut-off events. [2021-12-21 15:15:29,436 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-21 15:15:29,436 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:29,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:29,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:29,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:29,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2101951027, now seen corresponding path program 1 times [2021-12-21 15:15:29,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:29,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503377351] [2021-12-21 15:15:29,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:29,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:29,678 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 15:15:29,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:29,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503377351] [2021-12-21 15:15:29,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503377351] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:29,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:29,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 15:15:29,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341796059] [2021-12-21 15:15:29,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:29,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 15:15:29,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:29,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 15:15:29,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 15:15:29,715 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 272 [2021-12-21 15:15:29,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 261 transitions, 534 flow. Second operand has 2 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 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 15:15:29,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:29,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 272 [2021-12-21 15:15:29,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:29,762 INFO L129 PetriNetUnfolder]: 6/244 cut-off events. [2021-12-21 15:15:29,763 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2021-12-21 15:15:29,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 244 events. 6/244 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 308 event pairs, 0 based on Foata normal form. 20/245 useless extension candidates. Maximal degree in co-relation 162. Up to 5 conditions per place. [2021-12-21 15:15:29,766 INFO L132 encePairwiseOnDemand]: 255/272 looper letters, 4 selfloop transitions, 0 changer transitions 7/244 dead transitions. [2021-12-21 15:15:29,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 244 transitions, 508 flow [2021-12-21 15:15:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 15:15:29,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-21 15:15:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 521 transitions. [2021-12-21 15:15:29,789 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9577205882352942 [2021-12-21 15:15:29,790 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 521 transitions. [2021-12-21 15:15:29,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 521 transitions. [2021-12-21 15:15:29,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:29,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 521 transitions. [2021-12-21 15:15:29,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 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 15:15:29,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 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 15:15:29,805 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 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 15:15:29,806 INFO L186 Difference]: Start difference. First operand has 245 places, 261 transitions, 534 flow. Second operand 2 states and 521 transitions. [2021-12-21 15:15:29,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 244 transitions, 508 flow [2021-12-21 15:15:29,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 244 transitions, 500 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-21 15:15:29,815 INFO L242 Difference]: Finished difference. Result has 242 places, 237 transitions, 478 flow [2021-12-21 15:15:29,818 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=478, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2021-12-21 15:15:29,821 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2021-12-21 15:15:29,821 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 478 flow [2021-12-21 15:15:29,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 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 15:15:29,822 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:29,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:29,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 15:15:29,823 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:29,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:29,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1774321134, now seen corresponding path program 1 times [2021-12-21 15:15:29,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:29,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183585238] [2021-12-21 15:15:29,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:29,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:30,014 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 15:15:30,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:30,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183585238] [2021-12-21 15:15:30,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183585238] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:30,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:30,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 15:15:30,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422850113] [2021-12-21 15:15:30,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:30,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 15:15:30,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:30,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 15:15:30,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 15:15:30,019 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 272 [2021-12-21 15:15:30,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 478 flow. Second operand has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 15:15:30,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:30,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 272 [2021-12-21 15:15:30,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:30,123 INFO L129 PetriNetUnfolder]: 32/666 cut-off events. [2021-12-21 15:15:30,123 INFO L130 PetriNetUnfolder]: For 6/21 co-relation queries the response was YES. [2021-12-21 15:15:30,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 666 events. 32/666 cut-off events. For 6/21 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2728 event pairs, 9 based on Foata normal form. 2/625 useless extension candidates. Maximal degree in co-relation 750. Up to 34 conditions per place. [2021-12-21 15:15:30,127 INFO L132 encePairwiseOnDemand]: 267/272 looper letters, 26 selfloop transitions, 4 changer transitions 0/252 dead transitions. [2021-12-21 15:15:30,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 252 transitions, 575 flow [2021-12-21 15:15:30,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 15:15:30,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-21 15:15:30,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1226 transitions. [2021-12-21 15:15:30,130 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9014705882352941 [2021-12-21 15:15:30,130 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1226 transitions. [2021-12-21 15:15:30,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1226 transitions. [2021-12-21 15:15:30,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:30,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1226 transitions. [2021-12-21 15:15:30,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 245.2) internal successors, (1226), 5 states have internal predecessors, (1226), 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 15:15:30,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 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 15:15:30,136 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 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 15:15:30,136 INFO L186 Difference]: Start difference. First operand has 242 places, 237 transitions, 478 flow. Second operand 5 states and 1226 transitions. [2021-12-21 15:15:30,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 252 transitions, 575 flow [2021-12-21 15:15:30,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 252 transitions, 575 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:15:30,141 INFO L242 Difference]: Finished difference. Result has 242 places, 240 transitions, 507 flow [2021-12-21 15:15:30,141 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=507, PETRI_PLACES=242, PETRI_TRANSITIONS=240} [2021-12-21 15:15:30,142 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2021-12-21 15:15:30,142 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 240 transitions, 507 flow [2021-12-21 15:15:30,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 15:15:30,147 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:30,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:30,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 15:15:30,148 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:30,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:30,149 INFO L85 PathProgramCache]: Analyzing trace with hash -588087070, now seen corresponding path program 1 times [2021-12-21 15:15:30,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:30,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860317187] [2021-12-21 15:15:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:30,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:30,251 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 15:15:30,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:30,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860317187] [2021-12-21 15:15:30,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860317187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:30,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:30,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 15:15:30,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242399680] [2021-12-21 15:15:30,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:30,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 15:15:30,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:30,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 15:15:30,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 15:15:30,256 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 272 [2021-12-21 15:15:30,257 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 240 transitions, 507 flow. Second operand has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 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 15:15:30,257 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:30,257 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 272 [2021-12-21 15:15:30,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:30,335 INFO L129 PetriNetUnfolder]: 5/342 cut-off events. [2021-12-21 15:15:30,335 INFO L130 PetriNetUnfolder]: For 8/11 co-relation queries the response was YES. [2021-12-21 15:15:30,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 342 events. 5/342 cut-off events. For 8/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 582 event pairs, 0 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 396. Up to 29 conditions per place. [2021-12-21 15:15:30,337 INFO L132 encePairwiseOnDemand]: 262/272 looper letters, 28 selfloop transitions, 8 changer transitions 0/248 dead transitions. [2021-12-21 15:15:30,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 248 transitions, 595 flow [2021-12-21 15:15:30,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 15:15:30,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-21 15:15:30,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1168 transitions. [2021-12-21 15:15:30,340 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8588235294117647 [2021-12-21 15:15:30,340 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1168 transitions. [2021-12-21 15:15:30,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1168 transitions. [2021-12-21 15:15:30,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:30,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1168 transitions. [2021-12-21 15:15:30,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 233.6) internal successors, (1168), 5 states have internal predecessors, (1168), 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 15:15:30,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 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 15:15:30,346 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 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 15:15:30,346 INFO L186 Difference]: Start difference. First operand has 242 places, 240 transitions, 507 flow. Second operand 5 states and 1168 transitions. [2021-12-21 15:15:30,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 248 transitions, 595 flow [2021-12-21 15:15:30,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 248 transitions, 595 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:15:30,350 INFO L242 Difference]: Finished difference. Result has 247 places, 242 transitions, 539 flow [2021-12-21 15:15:30,351 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=539, PETRI_PLACES=247, PETRI_TRANSITIONS=242} [2021-12-21 15:15:30,352 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 2 predicate places. [2021-12-21 15:15:30,353 INFO L470 AbstractCegarLoop]: Abstraction has has 247 places, 242 transitions, 539 flow [2021-12-21 15:15:30,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 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 15:15:30,354 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:30,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:30,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 15:15:30,354 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:30,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1043059878, now seen corresponding path program 1 times [2021-12-21 15:15:30,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:30,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740305176] [2021-12-21 15:15:30,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:30,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:30,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 15:15:30,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:30,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740305176] [2021-12-21 15:15:30,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740305176] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:15:30,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718805562] [2021-12-21 15:15:30,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:30,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:15:30,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:15:30,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:15:30,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 15:15:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:30,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 15:15:30,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:15:30,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 15:15:30,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:15:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 15:15:31,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718805562] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:15:31,143 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 15:15:31,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2021-12-21 15:15:31,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956540809] [2021-12-21 15:15:31,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 15:15:31,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-21 15:15:31,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:31,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-21 15:15:31,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-12-21 15:15:31,148 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 272 [2021-12-21 15:15:31,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 242 transitions, 539 flow. Second operand has 15 states, 15 states have (on average 227.33333333333334) internal successors, (3410), 15 states have internal predecessors, (3410), 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 15:15:31,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:31,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 272 [2021-12-21 15:15:31,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:31,360 INFO L129 PetriNetUnfolder]: 5/360 cut-off events. [2021-12-21 15:15:31,361 INFO L130 PetriNetUnfolder]: For 16/19 co-relation queries the response was YES. [2021-12-21 15:15:31,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 360 events. 5/360 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 564 event pairs, 0 based on Foata normal form. 4/354 useless extension candidates. Maximal degree in co-relation 446. Up to 23 conditions per place. [2021-12-21 15:15:31,363 INFO L132 encePairwiseOnDemand]: 256/272 looper letters, 30 selfloop transitions, 22 changer transitions 0/262 dead transitions. [2021-12-21 15:15:31,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 262 transitions, 687 flow [2021-12-21 15:15:31,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 15:15:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-21 15:15:31,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2520 transitions. [2021-12-21 15:15:31,369 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8422459893048129 [2021-12-21 15:15:31,370 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2520 transitions. [2021-12-21 15:15:31,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2520 transitions. [2021-12-21 15:15:31,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:31,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2520 transitions. [2021-12-21 15:15:31,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 229.0909090909091) internal successors, (2520), 11 states have internal predecessors, (2520), 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 15:15:31,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:15:31,381 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:15:31,381 INFO L186 Difference]: Start difference. First operand has 247 places, 242 transitions, 539 flow. Second operand 11 states and 2520 transitions. [2021-12-21 15:15:31,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 262 transitions, 687 flow [2021-12-21 15:15:31,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 262 transitions, 675 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-21 15:15:31,385 INFO L242 Difference]: Finished difference. Result has 257 places, 254 transitions, 638 flow [2021-12-21 15:15:31,386 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=638, PETRI_PLACES=257, PETRI_TRANSITIONS=254} [2021-12-21 15:15:31,387 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 12 predicate places. [2021-12-21 15:15:31,387 INFO L470 AbstractCegarLoop]: Abstraction has has 257 places, 254 transitions, 638 flow [2021-12-21 15:15:31,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 227.33333333333334) internal successors, (3410), 15 states have internal predecessors, (3410), 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 15:15:31,388 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:31,388 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:31,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 15:15:31,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:15:31,608 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:31,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:31,609 INFO L85 PathProgramCache]: Analyzing trace with hash 785132506, now seen corresponding path program 2 times [2021-12-21 15:15:31,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:31,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466380339] [2021-12-21 15:15:31,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:31,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:31,722 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-21 15:15:31,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:31,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466380339] [2021-12-21 15:15:31,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466380339] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:15:31,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069780456] [2021-12-21 15:15:31,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 15:15:31,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:15:31,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:15:31,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:15:31,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 15:15:31,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-21 15:15:31,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 15:15:31,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 15:15:31,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:15:32,165 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-21 15:15:32,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:15:32,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069780456] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:32,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:15:32,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-12-21 15:15:32,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571002975] [2021-12-21 15:15:32,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:32,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 15:15:32,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:32,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 15:15:32,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-12-21 15:15:32,168 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 272 [2021-12-21 15:15:32,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 254 transitions, 638 flow. Second operand has 6 states, 6 states have (on average 229.16666666666666) internal successors, (1375), 6 states have internal predecessors, (1375), 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 15:15:32,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:32,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 272 [2021-12-21 15:15:32,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:32,562 INFO L129 PetriNetUnfolder]: 276/1837 cut-off events. [2021-12-21 15:15:32,563 INFO L130 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2021-12-21 15:15:32,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2571 conditions, 1837 events. 276/1837 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12871 event pairs, 5 based on Foata normal form. 0/1677 useless extension candidates. Maximal degree in co-relation 2560. Up to 212 conditions per place. [2021-12-21 15:15:32,571 INFO L132 encePairwiseOnDemand]: 260/272 looper letters, 63 selfloop transitions, 33 changer transitions 0/323 dead transitions. [2021-12-21 15:15:32,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 323 transitions, 979 flow [2021-12-21 15:15:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-21 15:15:32,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-21 15:15:32,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3050 transitions. [2021-12-21 15:15:32,576 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8625565610859729 [2021-12-21 15:15:32,576 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3050 transitions. [2021-12-21 15:15:32,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3050 transitions. [2021-12-21 15:15:32,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:32,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3050 transitions. [2021-12-21 15:15:32,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 234.6153846153846) internal successors, (3050), 13 states have internal predecessors, (3050), 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 15:15:32,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 272.0) internal successors, (3808), 14 states have internal predecessors, (3808), 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 15:15:32,587 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 272.0) internal successors, (3808), 14 states have internal predecessors, (3808), 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 15:15:32,587 INFO L186 Difference]: Start difference. First operand has 257 places, 254 transitions, 638 flow. Second operand 13 states and 3050 transitions. [2021-12-21 15:15:32,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 323 transitions, 979 flow [2021-12-21 15:15:32,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 323 transitions, 962 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-12-21 15:15:32,593 INFO L242 Difference]: Finished difference. Result has 272 places, 285 transitions, 817 flow [2021-12-21 15:15:32,593 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=817, PETRI_PLACES=272, PETRI_TRANSITIONS=285} [2021-12-21 15:15:32,594 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 27 predicate places. [2021-12-21 15:15:32,594 INFO L470 AbstractCegarLoop]: Abstraction has has 272 places, 285 transitions, 817 flow [2021-12-21 15:15:32,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.16666666666666) internal successors, (1375), 6 states have internal predecessors, (1375), 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 15:15:32,595 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:32,595 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:32,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 15:15:32,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:15:32,807 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:32,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2104899672, now seen corresponding path program 3 times [2021-12-21 15:15:32,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:32,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520434548] [2021-12-21 15:15:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:32,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:32,897 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-21 15:15:32,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:32,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520434548] [2021-12-21 15:15:32,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520434548] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:15:32,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182701533] [2021-12-21 15:15:32,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-21 15:15:32,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:15:32,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:15:32,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:15:32,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 15:15:32,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-12-21 15:15:32,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 15:15:32,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 15:15:32,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:15:33,335 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-21 15:15:33,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:15:33,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182701533] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:33,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:15:33,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-12-21 15:15:33,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106490921] [2021-12-21 15:15:33,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:33,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 15:15:33,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:33,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 15:15:33,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-12-21 15:15:33,338 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 272 [2021-12-21 15:15:33,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 285 transitions, 817 flow. Second operand has 6 states, 6 states have (on average 229.16666666666666) internal successors, (1375), 6 states have internal predecessors, (1375), 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 15:15:33,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:33,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 272 [2021-12-21 15:15:33,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:33,788 INFO L129 PetriNetUnfolder]: 297/2037 cut-off events. [2021-12-21 15:15:33,788 INFO L130 PetriNetUnfolder]: For 763/826 co-relation queries the response was YES. [2021-12-21 15:15:33,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3363 conditions, 2037 events. 297/2037 cut-off events. For 763/826 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 15035 event pairs, 89 based on Foata normal form. 24/1980 useless extension candidates. Maximal degree in co-relation 3346. Up to 359 conditions per place. [2021-12-21 15:15:33,799 INFO L132 encePairwiseOnDemand]: 259/272 looper letters, 78 selfloop transitions, 27 changer transitions 12/344 dead transitions. [2021-12-21 15:15:33,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 344 transitions, 1334 flow [2021-12-21 15:15:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-21 15:15:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-21 15:15:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2817 transitions. [2021-12-21 15:15:33,804 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8630514705882353 [2021-12-21 15:15:33,804 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2817 transitions. [2021-12-21 15:15:33,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2817 transitions. [2021-12-21 15:15:33,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:33,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2817 transitions. [2021-12-21 15:15:33,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 234.75) internal successors, (2817), 12 states have internal predecessors, (2817), 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 15:15:33,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 272.0) internal successors, (3536), 13 states have internal predecessors, (3536), 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 15:15:33,813 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 272.0) internal successors, (3536), 13 states have internal predecessors, (3536), 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 15:15:33,813 INFO L186 Difference]: Start difference. First operand has 272 places, 285 transitions, 817 flow. Second operand 12 states and 2817 transitions. [2021-12-21 15:15:33,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 344 transitions, 1334 flow [2021-12-21 15:15:33,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 344 transitions, 1334 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:15:33,821 INFO L242 Difference]: Finished difference. Result has 289 places, 299 transitions, 1011 flow [2021-12-21 15:15:33,821 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1011, PETRI_PLACES=289, PETRI_TRANSITIONS=299} [2021-12-21 15:15:33,822 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 44 predicate places. [2021-12-21 15:15:33,822 INFO L470 AbstractCegarLoop]: Abstraction has has 289 places, 299 transitions, 1011 flow [2021-12-21 15:15:33,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.16666666666666) internal successors, (1375), 6 states have internal predecessors, (1375), 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 15:15:33,822 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:33,823 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:33,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 15:15:34,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:15:34,037 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:34,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:34,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1265491446, now seen corresponding path program 4 times [2021-12-21 15:15:34,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:34,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886106428] [2021-12-21 15:15:34,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:34,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-21 15:15:34,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:34,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886106428] [2021-12-21 15:15:34,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886106428] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:15:34,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258150381] [2021-12-21 15:15:34,130 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-21 15:15:34,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:15:34,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:15:34,131 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:15:34,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 15:15:34,226 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-21 15:15:34,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 15:15:34,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-21 15:15:34,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:15:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-21 15:15:34,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:15:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-21 15:15:34,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258150381] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:15:34,761 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 15:15:34,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2021-12-21 15:15:34,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178272098] [2021-12-21 15:15:34,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 15:15:34,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-21 15:15:34,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:34,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-21 15:15:34,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2021-12-21 15:15:34,765 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 272 [2021-12-21 15:15:34,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 299 transitions, 1011 flow. Second operand has 22 states, 22 states have (on average 227.1818181818182) internal successors, (4998), 22 states have internal predecessors, (4998), 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 15:15:34,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:34,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 272 [2021-12-21 15:15:34,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:35,160 INFO L129 PetriNetUnfolder]: 71/1339 cut-off events. [2021-12-21 15:15:35,160 INFO L130 PetriNetUnfolder]: For 457/487 co-relation queries the response was YES. [2021-12-21 15:15:35,165 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1959 conditions, 1339 events. 71/1339 cut-off events. For 457/487 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 7919 event pairs, 2 based on Foata normal form. 11/1328 useless extension candidates. Maximal degree in co-relation 1935. Up to 48 conditions per place. [2021-12-21 15:15:35,168 INFO L132 encePairwiseOnDemand]: 256/272 looper letters, 38 selfloop transitions, 34 changer transitions 0/327 dead transitions. [2021-12-21 15:15:35,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 327 transitions, 1267 flow [2021-12-21 15:15:35,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 15:15:35,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-21 15:15:35,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3884 transitions. [2021-12-21 15:15:35,174 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8399653979238755 [2021-12-21 15:15:35,175 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3884 transitions. [2021-12-21 15:15:35,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3884 transitions. [2021-12-21 15:15:35,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:35,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3884 transitions. [2021-12-21 15:15:35,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 228.47058823529412) internal successors, (3884), 17 states have internal predecessors, (3884), 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 15:15:35,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 272.0) internal successors, (4896), 18 states have internal predecessors, (4896), 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 15:15:35,197 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 272.0) internal successors, (4896), 18 states have internal predecessors, (4896), 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 15:15:35,197 INFO L186 Difference]: Start difference. First operand has 289 places, 299 transitions, 1011 flow. Second operand 17 states and 3884 transitions. [2021-12-21 15:15:35,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 327 transitions, 1267 flow [2021-12-21 15:15:35,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 327 transitions, 1242 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-12-21 15:15:35,204 INFO L242 Difference]: Finished difference. Result has 305 places, 313 transitions, 1161 flow [2021-12-21 15:15:35,204 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1161, PETRI_PLACES=305, PETRI_TRANSITIONS=313} [2021-12-21 15:15:35,205 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 60 predicate places. [2021-12-21 15:15:35,205 INFO L470 AbstractCegarLoop]: Abstraction has has 305 places, 313 transitions, 1161 flow [2021-12-21 15:15:35,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 227.1818181818182) internal successors, (4998), 22 states have internal predecessors, (4998), 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 15:15:35,206 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:35,206 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:35,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-21 15:15:35,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:15:35,419 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:35,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1194032934, now seen corresponding path program 5 times [2021-12-21 15:15:35,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:35,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959699400] [2021-12-21 15:15:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:35,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-21 15:15:35,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:35,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959699400] [2021-12-21 15:15:35,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959699400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:35,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:35,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:15:35,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442300599] [2021-12-21 15:15:35,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:35,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:15:35,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:35,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:15:35,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:15:35,561 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:35,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 313 transitions, 1161 flow. Second operand has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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 15:15:35,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:35,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:35,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:36,169 INFO L129 PetriNetUnfolder]: 654/4417 cut-off events. [2021-12-21 15:15:36,170 INFO L130 PetriNetUnfolder]: For 1468/1509 co-relation queries the response was YES. [2021-12-21 15:15:36,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7182 conditions, 4417 events. 654/4417 cut-off events. For 1468/1509 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 38941 event pairs, 15 based on Foata normal form. 36/4306 useless extension candidates. Maximal degree in co-relation 7155. Up to 481 conditions per place. [2021-12-21 15:15:36,217 INFO L132 encePairwiseOnDemand]: 261/272 looper letters, 91 selfloop transitions, 23 changer transitions 2/394 dead transitions. [2021-12-21 15:15:36,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 394 transitions, 1637 flow [2021-12-21 15:15:36,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:15:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:15:36,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2325 transitions. [2021-12-21 15:15:36,221 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8547794117647058 [2021-12-21 15:15:36,221 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2325 transitions. [2021-12-21 15:15:36,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2325 transitions. [2021-12-21 15:15:36,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:36,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2325 transitions. [2021-12-21 15:15:36,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 232.5) internal successors, (2325), 10 states have internal predecessors, (2325), 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 15:15:36,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 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 15:15:36,227 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 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 15:15:36,228 INFO L186 Difference]: Start difference. First operand has 305 places, 313 transitions, 1161 flow. Second operand 10 states and 2325 transitions. [2021-12-21 15:15:36,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 394 transitions, 1637 flow [2021-12-21 15:15:36,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 394 transitions, 1592 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-12-21 15:15:36,241 INFO L242 Difference]: Finished difference. Result has 309 places, 328 transitions, 1226 flow [2021-12-21 15:15:36,242 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1226, PETRI_PLACES=309, PETRI_TRANSITIONS=328} [2021-12-21 15:15:36,242 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 64 predicate places. [2021-12-21 15:15:36,242 INFO L470 AbstractCegarLoop]: Abstraction has has 309 places, 328 transitions, 1226 flow [2021-12-21 15:15:36,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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 15:15:36,243 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:36,243 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:36,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 15:15:36,243 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:36,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:36,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1287676788, now seen corresponding path program 1 times [2021-12-21 15:15:36,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:36,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120009680] [2021-12-21 15:15:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:36,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-21 15:15:36,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:36,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120009680] [2021-12-21 15:15:36,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120009680] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:36,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:36,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 15:15:36,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876335472] [2021-12-21 15:15:36,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:36,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 15:15:36,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:36,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 15:15:36,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 15:15:36,285 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 272 [2021-12-21 15:15:36,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 328 transitions, 1226 flow. Second operand has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 15:15:36,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:36,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 272 [2021-12-21 15:15:36,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:36,599 INFO L129 PetriNetUnfolder]: 167/2464 cut-off events. [2021-12-21 15:15:36,599 INFO L130 PetriNetUnfolder]: For 1299/1527 co-relation queries the response was YES. [2021-12-21 15:15:36,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 2464 events. 167/2464 cut-off events. For 1299/1527 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 18497 event pairs, 31 based on Foata normal form. 112/2483 useless extension candidates. Maximal degree in co-relation 3699. Up to 185 conditions per place. [2021-12-21 15:15:36,612 INFO L132 encePairwiseOnDemand]: 267/272 looper letters, 62 selfloop transitions, 4 changer transitions 0/348 dead transitions. [2021-12-21 15:15:36,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 348 transitions, 1457 flow [2021-12-21 15:15:36,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 15:15:36,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-21 15:15:36,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1224 transitions. [2021-12-21 15:15:36,615 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-12-21 15:15:36,615 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1224 transitions. [2021-12-21 15:15:36,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1224 transitions. [2021-12-21 15:15:36,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:36,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1224 transitions. [2021-12-21 15:15:36,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 244.8) internal successors, (1224), 5 states have internal predecessors, (1224), 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 15:15:36,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 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 15:15:36,619 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 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 15:15:36,619 INFO L186 Difference]: Start difference. First operand has 309 places, 328 transitions, 1226 flow. Second operand 5 states and 1224 transitions. [2021-12-21 15:15:36,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 348 transitions, 1457 flow [2021-12-21 15:15:36,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 348 transitions, 1453 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-21 15:15:36,629 INFO L242 Difference]: Finished difference. Result has 314 places, 328 transitions, 1263 flow [2021-12-21 15:15:36,630 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1210, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1263, PETRI_PLACES=314, PETRI_TRANSITIONS=328} [2021-12-21 15:15:36,631 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 69 predicate places. [2021-12-21 15:15:36,631 INFO L470 AbstractCegarLoop]: Abstraction has has 314 places, 328 transitions, 1263 flow [2021-12-21 15:15:36,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 15:15:36,631 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:36,632 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:36,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 15:15:36,632 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:36,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:36,632 INFO L85 PathProgramCache]: Analyzing trace with hash 847301805, now seen corresponding path program 1 times [2021-12-21 15:15:36,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:36,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773919419] [2021-12-21 15:15:36,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:36,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:15:36,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:36,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773919419] [2021-12-21 15:15:36,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773919419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:36,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:36,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:15:36,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745357954] [2021-12-21 15:15:36,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:36,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:15:36,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:36,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:15:36,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:15:36,789 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:36,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 328 transitions, 1263 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:36,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:36,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:36,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:37,764 INFO L129 PetriNetUnfolder]: 1005/6032 cut-off events. [2021-12-21 15:15:37,764 INFO L130 PetriNetUnfolder]: For 4244/4320 co-relation queries the response was YES. [2021-12-21 15:15:37,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11035 conditions, 6032 events. 1005/6032 cut-off events. For 4244/4320 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 54991 event pairs, 233 based on Foata normal form. 76/5834 useless extension candidates. Maximal degree in co-relation 11002. Up to 644 conditions per place. [2021-12-21 15:15:37,805 INFO L132 encePairwiseOnDemand]: 256/272 looper letters, 107 selfloop transitions, 53 changer transitions 15/453 dead transitions. [2021-12-21 15:15:37,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 453 transitions, 2148 flow [2021-12-21 15:15:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-21 15:15:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-21 15:15:37,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3257 transitions. [2021-12-21 15:15:37,811 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8553046218487395 [2021-12-21 15:15:37,811 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3257 transitions. [2021-12-21 15:15:37,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3257 transitions. [2021-12-21 15:15:37,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:37,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3257 transitions. [2021-12-21 15:15:37,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 232.64285714285714) internal successors, (3257), 14 states have internal predecessors, (3257), 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 15:15:37,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 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 15:15:37,821 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 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 15:15:37,821 INFO L186 Difference]: Start difference. First operand has 314 places, 328 transitions, 1263 flow. Second operand 14 states and 3257 transitions. [2021-12-21 15:15:37,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 453 transitions, 2148 flow [2021-12-21 15:15:37,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 453 transitions, 2148 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:15:37,843 INFO L242 Difference]: Finished difference. Result has 338 places, 364 transitions, 1671 flow [2021-12-21 15:15:37,843 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1671, PETRI_PLACES=338, PETRI_TRANSITIONS=364} [2021-12-21 15:15:37,844 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 93 predicate places. [2021-12-21 15:15:37,844 INFO L470 AbstractCegarLoop]: Abstraction has has 338 places, 364 transitions, 1671 flow [2021-12-21 15:15:37,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:37,844 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:37,845 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:37,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 15:15:37,845 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:37,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:37,845 INFO L85 PathProgramCache]: Analyzing trace with hash -513790471, now seen corresponding path program 2 times [2021-12-21 15:15:37,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:37,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366504836] [2021-12-21 15:15:37,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:37,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:15:37,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:37,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366504836] [2021-12-21 15:15:37,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366504836] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:37,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:37,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 15:15:37,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53302873] [2021-12-21 15:15:37,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:37,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:15:37,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:37,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:15:37,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:15:37,950 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:37,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 364 transitions, 1671 flow. Second operand has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 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 15:15:37,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:37,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:37,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:39,018 INFO L129 PetriNetUnfolder]: 981/6135 cut-off events. [2021-12-21 15:15:39,018 INFO L130 PetriNetUnfolder]: For 8252/8639 co-relation queries the response was YES. [2021-12-21 15:15:39,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12753 conditions, 6135 events. 981/6135 cut-off events. For 8252/8639 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 55215 event pairs, 377 based on Foata normal form. 68/6093 useless extension candidates. Maximal degree in co-relation 12709. Up to 767 conditions per place. [2021-12-21 15:15:39,070 INFO L132 encePairwiseOnDemand]: 263/272 looper letters, 140 selfloop transitions, 33 changer transitions 36/487 dead transitions. [2021-12-21 15:15:39,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 487 transitions, 2771 flow [2021-12-21 15:15:39,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 15:15:39,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-21 15:15:39,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2552 transitions. [2021-12-21 15:15:39,075 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8529411764705882 [2021-12-21 15:15:39,075 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2552 transitions. [2021-12-21 15:15:39,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2552 transitions. [2021-12-21 15:15:39,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:39,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2552 transitions. [2021-12-21 15:15:39,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 232.0) internal successors, (2552), 11 states have internal predecessors, (2552), 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 15:15:39,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:15:39,084 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:15:39,085 INFO L186 Difference]: Start difference. First operand has 338 places, 364 transitions, 1671 flow. Second operand 11 states and 2552 transitions. [2021-12-21 15:15:39,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 487 transitions, 2771 flow [2021-12-21 15:15:39,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 487 transitions, 2748 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-21 15:15:39,127 INFO L242 Difference]: Finished difference. Result has 351 places, 376 transitions, 1869 flow [2021-12-21 15:15:39,128 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1661, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1869, PETRI_PLACES=351, PETRI_TRANSITIONS=376} [2021-12-21 15:15:39,128 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 106 predicate places. [2021-12-21 15:15:39,128 INFO L470 AbstractCegarLoop]: Abstraction has has 351 places, 376 transitions, 1869 flow [2021-12-21 15:15:39,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 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 15:15:39,129 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:39,129 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:39,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 15:15:39,129 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:39,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:39,130 INFO L85 PathProgramCache]: Analyzing trace with hash 430869065, now seen corresponding path program 3 times [2021-12-21 15:15:39,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:39,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797721103] [2021-12-21 15:15:39,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:39,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:39,287 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-21 15:15:39,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:39,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797721103] [2021-12-21 15:15:39,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797721103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:39,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:39,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:15:39,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116550887] [2021-12-21 15:15:39,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:39,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:15:39,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:39,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:15:39,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:15:39,292 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:39,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 376 transitions, 1869 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:39,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:39,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:39,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:40,556 INFO L129 PetriNetUnfolder]: 1094/6955 cut-off events. [2021-12-21 15:15:40,557 INFO L130 PetriNetUnfolder]: For 14587/15193 co-relation queries the response was YES. [2021-12-21 15:15:40,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15154 conditions, 6955 events. 1094/6955 cut-off events. For 14587/15193 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 66621 event pairs, 367 based on Foata normal form. 119/6957 useless extension candidates. Maximal degree in co-relation 15104. Up to 866 conditions per place. [2021-12-21 15:15:40,599 INFO L132 encePairwiseOnDemand]: 257/272 looper letters, 113 selfloop transitions, 69 changer transitions 18/478 dead transitions. [2021-12-21 15:15:40,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 478 transitions, 2978 flow [2021-12-21 15:15:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:15:40,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:15:40,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2337 transitions. [2021-12-21 15:15:40,602 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8591911764705882 [2021-12-21 15:15:40,602 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2337 transitions. [2021-12-21 15:15:40,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2337 transitions. [2021-12-21 15:15:40,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:40,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2337 transitions. [2021-12-21 15:15:40,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 233.7) internal successors, (2337), 10 states have internal predecessors, (2337), 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 15:15:40,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 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 15:15:40,609 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 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 15:15:40,609 INFO L186 Difference]: Start difference. First operand has 351 places, 376 transitions, 1869 flow. Second operand 10 states and 2337 transitions. [2021-12-21 15:15:40,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 478 transitions, 2978 flow [2021-12-21 15:15:40,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 478 transitions, 2966 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-12-21 15:15:40,653 INFO L242 Difference]: Finished difference. Result has 363 places, 396 transitions, 2343 flow [2021-12-21 15:15:40,654 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1861, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2343, PETRI_PLACES=363, PETRI_TRANSITIONS=396} [2021-12-21 15:15:40,654 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 118 predicate places. [2021-12-21 15:15:40,654 INFO L470 AbstractCegarLoop]: Abstraction has has 363 places, 396 transitions, 2343 flow [2021-12-21 15:15:40,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:40,655 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:40,655 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:40,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-21 15:15:40,655 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:40,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:40,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1370081039, now seen corresponding path program 4 times [2021-12-21 15:15:40,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:40,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125510907] [2021-12-21 15:15:40,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:40,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-21 15:15:40,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:40,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125510907] [2021-12-21 15:15:40,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125510907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:40,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:40,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:15:40,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618006606] [2021-12-21 15:15:40,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:40,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:15:40,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:40,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:15:40,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:15:40,760 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:40,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 396 transitions, 2343 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:40,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:40,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:40,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:42,157 INFO L129 PetriNetUnfolder]: 1137/7544 cut-off events. [2021-12-21 15:15:42,157 INFO L130 PetriNetUnfolder]: For 22575/23450 co-relation queries the response was YES. [2021-12-21 15:15:42,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17322 conditions, 7544 events. 1137/7544 cut-off events. For 22575/23450 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 73715 event pairs, 499 based on Foata normal form. 140/7561 useless extension candidates. Maximal degree in co-relation 17266. Up to 809 conditions per place. [2021-12-21 15:15:42,221 INFO L132 encePairwiseOnDemand]: 260/272 looper letters, 150 selfloop transitions, 60 changer transitions 8/496 dead transitions. [2021-12-21 15:15:42,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 496 transitions, 3414 flow [2021-12-21 15:15:42,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:15:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:15:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2328 transitions. [2021-12-21 15:15:42,224 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8558823529411764 [2021-12-21 15:15:42,224 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2328 transitions. [2021-12-21 15:15:42,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2328 transitions. [2021-12-21 15:15:42,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:42,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2328 transitions. [2021-12-21 15:15:42,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 232.8) internal successors, (2328), 10 states have internal predecessors, (2328), 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 15:15:42,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 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 15:15:42,231 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 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 15:15:42,231 INFO L186 Difference]: Start difference. First operand has 363 places, 396 transitions, 2343 flow. Second operand 10 states and 2328 transitions. [2021-12-21 15:15:42,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 496 transitions, 3414 flow [2021-12-21 15:15:42,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 496 transitions, 3396 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-12-21 15:15:42,306 INFO L242 Difference]: Finished difference. Result has 377 places, 408 transitions, 2680 flow [2021-12-21 15:15:42,306 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=2327, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2680, PETRI_PLACES=377, PETRI_TRANSITIONS=408} [2021-12-21 15:15:42,308 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 132 predicate places. [2021-12-21 15:15:42,308 INFO L470 AbstractCegarLoop]: Abstraction has has 377 places, 408 transitions, 2680 flow [2021-12-21 15:15:42,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:42,308 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:42,309 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:42,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-21 15:15:42,309 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:42,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:42,309 INFO L85 PathProgramCache]: Analyzing trace with hash -444991851, now seen corresponding path program 5 times [2021-12-21 15:15:42,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:42,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025911984] [2021-12-21 15:15:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:42,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-21 15:15:42,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:42,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025911984] [2021-12-21 15:15:42,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025911984] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:42,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:42,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:15:42,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874962617] [2021-12-21 15:15:42,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:42,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:15:42,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:42,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:15:42,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:15:42,437 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:42,438 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 408 transitions, 2680 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:42,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:42,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:42,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:43,997 INFO L129 PetriNetUnfolder]: 1209/8059 cut-off events. [2021-12-21 15:15:43,998 INFO L130 PetriNetUnfolder]: For 31122/32242 co-relation queries the response was YES. [2021-12-21 15:15:44,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19396 conditions, 8059 events. 1209/8059 cut-off events. For 31122/32242 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 80486 event pairs, 454 based on Foata normal form. 140/8063 useless extension candidates. Maximal degree in co-relation 19334. Up to 836 conditions per place. [2021-12-21 15:15:44,056 INFO L132 encePairwiseOnDemand]: 260/272 looper letters, 148 selfloop transitions, 73 changer transitions 12/511 dead transitions. [2021-12-21 15:15:44,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 511 transitions, 3899 flow [2021-12-21 15:15:44,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:15:44,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:15:44,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2345 transitions. [2021-12-21 15:15:44,059 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8621323529411765 [2021-12-21 15:15:44,059 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2345 transitions. [2021-12-21 15:15:44,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2345 transitions. [2021-12-21 15:15:44,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:44,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2345 transitions. [2021-12-21 15:15:44,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 234.5) internal successors, (2345), 10 states have internal predecessors, (2345), 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 15:15:44,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 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 15:15:44,064 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 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 15:15:44,065 INFO L186 Difference]: Start difference. First operand has 377 places, 408 transitions, 2680 flow. Second operand 10 states and 2345 transitions. [2021-12-21 15:15:44,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 511 transitions, 3899 flow [2021-12-21 15:15:44,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 511 transitions, 3850 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-12-21 15:15:44,145 INFO L242 Difference]: Finished difference. Result has 389 places, 418 transitions, 3086 flow [2021-12-21 15:15:44,145 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=2640, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3086, PETRI_PLACES=389, PETRI_TRANSITIONS=418} [2021-12-21 15:15:44,146 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 144 predicate places. [2021-12-21 15:15:44,146 INFO L470 AbstractCegarLoop]: Abstraction has has 389 places, 418 transitions, 3086 flow [2021-12-21 15:15:44,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:44,146 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:44,146 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:44,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-21 15:15:44,147 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:44,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:44,147 INFO L85 PathProgramCache]: Analyzing trace with hash -854491031, now seen corresponding path program 6 times [2021-12-21 15:15:44,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:44,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650203667] [2021-12-21 15:15:44,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:44,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:15:44,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:44,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650203667] [2021-12-21 15:15:44,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650203667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:44,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:44,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:15:44,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870631650] [2021-12-21 15:15:44,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:44,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:15:44,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:44,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:15:44,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:15:44,257 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:44,258 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 418 transitions, 3086 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:44,258 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:44,258 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:44,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:46,523 INFO L129 PetriNetUnfolder]: 1545/11120 cut-off events. [2021-12-21 15:15:46,523 INFO L130 PetriNetUnfolder]: For 43602/44695 co-relation queries the response was YES. [2021-12-21 15:15:46,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26008 conditions, 11120 events. 1545/11120 cut-off events. For 43602/44695 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 122866 event pairs, 332 based on Foata normal form. 210/11165 useless extension candidates. Maximal degree in co-relation 25941. Up to 1091 conditions per place. [2021-12-21 15:15:46,604 INFO L132 encePairwiseOnDemand]: 259/272 looper letters, 139 selfloop transitions, 89 changer transitions 8/514 dead transitions. [2021-12-21 15:15:46,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 514 transitions, 4286 flow [2021-12-21 15:15:46,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 15:15:46,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-21 15:15:46,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2551 transitions. [2021-12-21 15:15:46,606 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8526069518716578 [2021-12-21 15:15:46,607 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2551 transitions. [2021-12-21 15:15:46,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2551 transitions. [2021-12-21 15:15:46,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:46,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2551 transitions. [2021-12-21 15:15:46,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 231.9090909090909) internal successors, (2551), 11 states have internal predecessors, (2551), 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 15:15:46,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:15:46,613 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:15:46,613 INFO L186 Difference]: Start difference. First operand has 389 places, 418 transitions, 3086 flow. Second operand 11 states and 2551 transitions. [2021-12-21 15:15:46,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 514 transitions, 4286 flow [2021-12-21 15:15:46,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 514 transitions, 4136 flow, removed 25 selfloop flow, removed 6 redundant places. [2021-12-21 15:15:46,739 INFO L242 Difference]: Finished difference. Result has 397 places, 441 transitions, 3621 flow [2021-12-21 15:15:46,740 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=2970, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3621, PETRI_PLACES=397, PETRI_TRANSITIONS=441} [2021-12-21 15:15:46,740 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 152 predicate places. [2021-12-21 15:15:46,740 INFO L470 AbstractCegarLoop]: Abstraction has has 397 places, 441 transitions, 3621 flow [2021-12-21 15:15:46,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:46,741 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:46,741 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:46,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-21 15:15:46,741 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:46,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:46,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1014004619, now seen corresponding path program 7 times [2021-12-21 15:15:46,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:46,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699430718] [2021-12-21 15:15:46,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:46,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:46,845 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:15:46,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:46,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699430718] [2021-12-21 15:15:46,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699430718] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:46,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:46,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:15:46,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690509570] [2021-12-21 15:15:46,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:46,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:15:46,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:46,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:15:46,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:15:46,849 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:46,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 441 transitions, 3621 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:46,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:46,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:46,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:49,270 INFO L129 PetriNetUnfolder]: 1788/12479 cut-off events. [2021-12-21 15:15:49,270 INFO L130 PetriNetUnfolder]: For 58406/59854 co-relation queries the response was YES. [2021-12-21 15:15:49,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29977 conditions, 12479 events. 1788/12479 cut-off events. For 58406/59854 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 140494 event pairs, 294 based on Foata normal form. 387/12689 useless extension candidates. Maximal degree in co-relation 29909. Up to 1089 conditions per place. [2021-12-21 15:15:49,378 INFO L132 encePairwiseOnDemand]: 252/272 looper letters, 134 selfloop transitions, 154 changer transitions 26/592 dead transitions. [2021-12-21 15:15:49,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 592 transitions, 5602 flow [2021-12-21 15:15:49,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-21 15:15:49,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-21 15:15:49,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3717 transitions. [2021-12-21 15:15:49,390 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8540900735294118 [2021-12-21 15:15:49,390 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3717 transitions. [2021-12-21 15:15:49,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3717 transitions. [2021-12-21 15:15:49,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:49,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3717 transitions. [2021-12-21 15:15:49,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 232.3125) internal successors, (3717), 16 states have internal predecessors, (3717), 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 15:15:49,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 272.0) internal successors, (4624), 17 states have internal predecessors, (4624), 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 15:15:49,398 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 272.0) internal successors, (4624), 17 states have internal predecessors, (4624), 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 15:15:49,398 INFO L186 Difference]: Start difference. First operand has 397 places, 441 transitions, 3621 flow. Second operand 16 states and 3717 transitions. [2021-12-21 15:15:49,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 592 transitions, 5602 flow [2021-12-21 15:15:49,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 592 transitions, 5512 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-12-21 15:15:49,530 INFO L242 Difference]: Finished difference. Result has 417 places, 503 transitions, 4798 flow [2021-12-21 15:15:49,530 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=3550, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4798, PETRI_PLACES=417, PETRI_TRANSITIONS=503} [2021-12-21 15:15:49,531 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 172 predicate places. [2021-12-21 15:15:49,531 INFO L470 AbstractCegarLoop]: Abstraction has has 417 places, 503 transitions, 4798 flow [2021-12-21 15:15:49,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:49,531 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:49,532 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:49,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-21 15:15:49,532 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:49,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:49,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1508373015, now seen corresponding path program 8 times [2021-12-21 15:15:49,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:49,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618217128] [2021-12-21 15:15:49,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:49,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:15:49,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:49,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618217128] [2021-12-21 15:15:49,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618217128] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:49,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:49,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:15:49,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316596652] [2021-12-21 15:15:49,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:49,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:15:49,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:49,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:15:49,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:15:49,627 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:49,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 503 transitions, 4798 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:49,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:49,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:49,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:52,290 INFO L129 PetriNetUnfolder]: 1776/12151 cut-off events. [2021-12-21 15:15:52,291 INFO L130 PetriNetUnfolder]: For 66515/68199 co-relation queries the response was YES. [2021-12-21 15:15:52,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31826 conditions, 12151 events. 1776/12151 cut-off events. For 66515/68199 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 134888 event pairs, 349 based on Foata normal form. 379/12347 useless extension candidates. Maximal degree in co-relation 31748. Up to 1152 conditions per place. [2021-12-21 15:15:52,399 INFO L132 encePairwiseOnDemand]: 258/272 looper letters, 156 selfloop transitions, 124 changer transitions 12/570 dead transitions. [2021-12-21 15:15:52,399 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 570 transitions, 5908 flow [2021-12-21 15:15:52,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 15:15:52,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-21 15:15:52,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2560 transitions. [2021-12-21 15:15:52,402 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8556149732620321 [2021-12-21 15:15:52,402 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2560 transitions. [2021-12-21 15:15:52,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2560 transitions. [2021-12-21 15:15:52,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:52,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2560 transitions. [2021-12-21 15:15:52,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 232.72727272727272) internal successors, (2560), 11 states have internal predecessors, (2560), 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 15:15:52,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:15:52,407 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:15:52,408 INFO L186 Difference]: Start difference. First operand has 417 places, 503 transitions, 4798 flow. Second operand 11 states and 2560 transitions. [2021-12-21 15:15:52,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 570 transitions, 5908 flow [2021-12-21 15:15:52,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 570 transitions, 5807 flow, removed 26 selfloop flow, removed 8 redundant places. [2021-12-21 15:15:52,587 INFO L242 Difference]: Finished difference. Result has 418 places, 510 transitions, 5194 flow [2021-12-21 15:15:52,588 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=4715, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5194, PETRI_PLACES=418, PETRI_TRANSITIONS=510} [2021-12-21 15:15:52,588 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 173 predicate places. [2021-12-21 15:15:52,588 INFO L470 AbstractCegarLoop]: Abstraction has has 418 places, 510 transitions, 5194 flow [2021-12-21 15:15:52,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:52,588 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:52,589 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:52,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-21 15:15:52,589 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:52,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:52,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1575249665, now seen corresponding path program 9 times [2021-12-21 15:15:52,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:52,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244220043] [2021-12-21 15:15:52,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:52,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:52,668 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:15:52,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:52,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244220043] [2021-12-21 15:15:52,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244220043] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:52,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:52,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:15:52,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999816331] [2021-12-21 15:15:52,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:52,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:15:52,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:52,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:15:52,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:15:52,671 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:52,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 510 transitions, 5194 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:52,672 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:52,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:52,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:55,223 INFO L129 PetriNetUnfolder]: 1809/12672 cut-off events. [2021-12-21 15:15:55,224 INFO L130 PetriNetUnfolder]: For 74840/76369 co-relation queries the response was YES. [2021-12-21 15:15:55,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33611 conditions, 12672 events. 1809/12672 cut-off events. For 74840/76369 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 142142 event pairs, 334 based on Foata normal form. 448/12945 useless extension candidates. Maximal degree in co-relation 33532. Up to 1929 conditions per place. [2021-12-21 15:15:55,357 INFO L132 encePairwiseOnDemand]: 256/272 looper letters, 165 selfloop transitions, 129 changer transitions 9/581 dead transitions. [2021-12-21 15:15:55,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 581 transitions, 6455 flow [2021-12-21 15:15:55,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:15:55,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:15:55,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2319 transitions. [2021-12-21 15:15:55,362 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8525735294117647 [2021-12-21 15:15:55,362 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2319 transitions. [2021-12-21 15:15:55,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2319 transitions. [2021-12-21 15:15:55,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:55,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2319 transitions. [2021-12-21 15:15:55,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 231.9) internal successors, (2319), 10 states have internal predecessors, (2319), 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 15:15:55,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 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 15:15:55,367 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 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 15:15:55,367 INFO L186 Difference]: Start difference. First operand has 418 places, 510 transitions, 5194 flow. Second operand 10 states and 2319 transitions. [2021-12-21 15:15:55,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 581 transitions, 6455 flow [2021-12-21 15:15:55,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 581 transitions, 6270 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-12-21 15:15:55,580 INFO L242 Difference]: Finished difference. Result has 423 places, 529 transitions, 5735 flow [2021-12-21 15:15:55,581 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=5019, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5735, PETRI_PLACES=423, PETRI_TRANSITIONS=529} [2021-12-21 15:15:55,581 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 178 predicate places. [2021-12-21 15:15:55,581 INFO L470 AbstractCegarLoop]: Abstraction has has 423 places, 529 transitions, 5735 flow [2021-12-21 15:15:55,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:55,582 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:55,582 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:55,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-21 15:15:55,582 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:55,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:55,583 INFO L85 PathProgramCache]: Analyzing trace with hash -919408403, now seen corresponding path program 10 times [2021-12-21 15:15:55,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:55,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175280449] [2021-12-21 15:15:55,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:55,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:15:55,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:55,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175280449] [2021-12-21 15:15:55,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175280449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:55,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:55,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:15:55,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5524899] [2021-12-21 15:15:55,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:55,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:15:55,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:55,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:15:55,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:15:55,820 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:55,820 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 529 transitions, 5735 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:55,820 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:55,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:55,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:15:58,553 INFO L129 PetriNetUnfolder]: 1815/12530 cut-off events. [2021-12-21 15:15:58,554 INFO L130 PetriNetUnfolder]: For 79349/80923 co-relation queries the response was YES. [2021-12-21 15:15:58,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34020 conditions, 12530 events. 1815/12530 cut-off events. For 79349/80923 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 139439 event pairs, 236 based on Foata normal form. 610/12970 useless extension candidates. Maximal degree in co-relation 33939. Up to 1728 conditions per place. [2021-12-21 15:15:58,668 INFO L132 encePairwiseOnDemand]: 250/272 looper letters, 132 selfloop transitions, 185 changer transitions 15/610 dead transitions. [2021-12-21 15:15:58,669 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 610 transitions, 7169 flow [2021-12-21 15:15:58,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-21 15:15:58,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-21 15:15:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3468 transitions. [2021-12-21 15:15:58,671 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.85 [2021-12-21 15:15:58,671 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3468 transitions. [2021-12-21 15:15:58,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3468 transitions. [2021-12-21 15:15:58,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:15:58,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3468 transitions. [2021-12-21 15:15:58,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 231.2) internal successors, (3468), 15 states have internal predecessors, (3468), 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 15:15:58,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 272.0) internal successors, (4352), 16 states have internal predecessors, (4352), 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 15:15:58,677 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 272.0) internal successors, (4352), 16 states have internal predecessors, (4352), 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 15:15:58,678 INFO L186 Difference]: Start difference. First operand has 423 places, 529 transitions, 5735 flow. Second operand 15 states and 3468 transitions. [2021-12-21 15:15:58,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 610 transitions, 7169 flow [2021-12-21 15:15:58,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 610 transitions, 7090 flow, removed 36 selfloop flow, removed 2 redundant places. [2021-12-21 15:15:58,918 INFO L242 Difference]: Finished difference. Result has 440 places, 545 transitions, 6523 flow [2021-12-21 15:15:58,919 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=5700, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6523, PETRI_PLACES=440, PETRI_TRANSITIONS=545} [2021-12-21 15:15:58,919 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 195 predicate places. [2021-12-21 15:15:58,919 INFO L470 AbstractCegarLoop]: Abstraction has has 440 places, 545 transitions, 6523 flow [2021-12-21 15:15:58,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:15:58,920 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:15:58,920 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:58,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-21 15:15:58,920 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:15:58,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:15:58,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1652799699, now seen corresponding path program 1 times [2021-12-21 15:15:58,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:15:58,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852764965] [2021-12-21 15:15:58,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:15:58,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:15:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:15:59,022 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:15:59,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:15:59,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852764965] [2021-12-21 15:15:59,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852764965] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:15:59,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:15:59,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 15:15:59,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119784165] [2021-12-21 15:15:59,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:15:59,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:15:59,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:15:59,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:15:59,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:15:59,025 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:15:59,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 545 transitions, 6523 flow. Second operand has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 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 15:15:59,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:15:59,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:15:59,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:16:02,626 INFO L129 PetriNetUnfolder]: 3207/15658 cut-off events. [2021-12-21 15:16:02,627 INFO L130 PetriNetUnfolder]: For 64223/65214 co-relation queries the response was YES. [2021-12-21 15:16:02,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41702 conditions, 15658 events. 3207/15658 cut-off events. For 64223/65214 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 177641 event pairs, 1062 based on Foata normal form. 277/15741 useless extension candidates. Maximal degree in co-relation 41615. Up to 3434 conditions per place. [2021-12-21 15:16:02,889 INFO L132 encePairwiseOnDemand]: 262/272 looper letters, 143 selfloop transitions, 25 changer transitions 26/660 dead transitions. [2021-12-21 15:16:02,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 660 transitions, 7546 flow [2021-12-21 15:16:02,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 15:16:02,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-21 15:16:02,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2552 transitions. [2021-12-21 15:16:02,891 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8529411764705882 [2021-12-21 15:16:02,891 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2552 transitions. [2021-12-21 15:16:02,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2552 transitions. [2021-12-21 15:16:02,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:16:02,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2552 transitions. [2021-12-21 15:16:02,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 232.0) internal successors, (2552), 11 states have internal predecessors, (2552), 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 15:16:02,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:16:02,896 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:16:02,896 INFO L186 Difference]: Start difference. First operand has 440 places, 545 transitions, 6523 flow. Second operand 11 states and 2552 transitions. [2021-12-21 15:16:02,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 660 transitions, 7546 flow [2021-12-21 15:16:03,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 660 transitions, 7383 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-12-21 15:16:03,105 INFO L242 Difference]: Finished difference. Result has 449 places, 555 transitions, 6506 flow [2021-12-21 15:16:03,106 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=6364, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6506, PETRI_PLACES=449, PETRI_TRANSITIONS=555} [2021-12-21 15:16:03,106 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 204 predicate places. [2021-12-21 15:16:03,106 INFO L470 AbstractCegarLoop]: Abstraction has has 449 places, 555 transitions, 6506 flow [2021-12-21 15:16:03,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 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 15:16:03,106 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:16:03,107 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:16:03,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-21 15:16:03,107 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:16:03,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:16:03,107 INFO L85 PathProgramCache]: Analyzing trace with hash 6231931, now seen corresponding path program 11 times [2021-12-21 15:16:03,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:16:03,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425237343] [2021-12-21 15:16:03,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:16:03,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:16:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:16:03,203 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:16:03,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:16:03,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425237343] [2021-12-21 15:16:03,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425237343] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:16:03,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:16:03,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:16:03,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125124215] [2021-12-21 15:16:03,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:16:03,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:16:03,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:16:03,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:16:03,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:16:03,206 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:16:03,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 555 transitions, 6506 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:16:03,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:16:03,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:16:03,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:16:06,732 INFO L129 PetriNetUnfolder]: 2299/15750 cut-off events. [2021-12-21 15:16:06,732 INFO L130 PetriNetUnfolder]: For 98491/99962 co-relation queries the response was YES. [2021-12-21 15:16:06,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44036 conditions, 15750 events. 2299/15750 cut-off events. For 98491/99962 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 185252 event pairs, 263 based on Foata normal form. 590/16119 useless extension candidates. Maximal degree in co-relation 43946. Up to 2387 conditions per place. [2021-12-21 15:16:06,904 INFO L132 encePairwiseOnDemand]: 252/272 looper letters, 172 selfloop transitions, 197 changer transitions 15/672 dead transitions. [2021-12-21 15:16:06,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 672 transitions, 8822 flow [2021-12-21 15:16:06,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-21 15:16:06,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-21 15:16:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3240 transitions. [2021-12-21 15:16:06,907 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8508403361344538 [2021-12-21 15:16:06,907 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3240 transitions. [2021-12-21 15:16:06,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3240 transitions. [2021-12-21 15:16:06,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:16:06,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3240 transitions. [2021-12-21 15:16:06,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 231.42857142857142) internal successors, (3240), 14 states have internal predecessors, (3240), 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 15:16:06,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 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 15:16:06,912 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 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 15:16:06,913 INFO L186 Difference]: Start difference. First operand has 449 places, 555 transitions, 6506 flow. Second operand 14 states and 3240 transitions. [2021-12-21 15:16:06,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 672 transitions, 8822 flow [2021-12-21 15:16:07,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 672 transitions, 8802 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-12-21 15:16:07,202 INFO L242 Difference]: Finished difference. Result has 459 places, 602 transitions, 8252 flow [2021-12-21 15:16:07,202 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=6486, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8252, PETRI_PLACES=459, PETRI_TRANSITIONS=602} [2021-12-21 15:16:07,202 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 214 predicate places. [2021-12-21 15:16:07,203 INFO L470 AbstractCegarLoop]: Abstraction has has 459 places, 602 transitions, 8252 flow [2021-12-21 15:16:07,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:16:07,203 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:16:07,203 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:16:07,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-21 15:16:07,203 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:16:07,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:16:07,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1865901937, now seen corresponding path program 2 times [2021-12-21 15:16:07,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:16:07,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466209815] [2021-12-21 15:16:07,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:16:07,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:16:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:16:07,281 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:16:07,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:16:07,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466209815] [2021-12-21 15:16:07,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466209815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:16:07,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:16:07,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:16:07,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394490179] [2021-12-21 15:16:07,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:16:07,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:16:07,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:16:07,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:16:07,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:16:07,284 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:16:07,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 602 transitions, 8252 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:16:07,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:16:07,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:16:07,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:16:12,586 INFO L129 PetriNetUnfolder]: 4622/22551 cut-off events. [2021-12-21 15:16:12,586 INFO L130 PetriNetUnfolder]: For 108945/110628 co-relation queries the response was YES. [2021-12-21 15:16:12,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64158 conditions, 22551 events. 4622/22551 cut-off events. For 108945/110628 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 277894 event pairs, 1298 based on Foata normal form. 589/22939 useless extension candidates. Maximal degree in co-relation 64065. Up to 4525 conditions per place. [2021-12-21 15:16:13,024 INFO L132 encePairwiseOnDemand]: 260/272 looper letters, 134 selfloop transitions, 49 changer transitions 5/701 dead transitions. [2021-12-21 15:16:13,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 701 transitions, 9163 flow [2021-12-21 15:16:13,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 15:16:13,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-21 15:16:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2555 transitions. [2021-12-21 15:16:13,026 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8539438502673797 [2021-12-21 15:16:13,027 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2555 transitions. [2021-12-21 15:16:13,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2555 transitions. [2021-12-21 15:16:13,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:16:13,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2555 transitions. [2021-12-21 15:16:13,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 232.27272727272728) internal successors, (2555), 11 states have internal predecessors, (2555), 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 15:16:13,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:16:13,032 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 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 15:16:13,032 INFO L186 Difference]: Start difference. First operand has 459 places, 602 transitions, 8252 flow. Second operand 11 states and 2555 transitions. [2021-12-21 15:16:13,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 701 transitions, 9163 flow [2021-12-21 15:16:13,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 701 transitions, 9098 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-12-21 15:16:13,611 INFO L242 Difference]: Finished difference. Result has 465 places, 624 transitions, 8536 flow [2021-12-21 15:16:13,611 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=8187, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8536, PETRI_PLACES=465, PETRI_TRANSITIONS=624} [2021-12-21 15:16:13,612 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 220 predicate places. [2021-12-21 15:16:13,612 INFO L470 AbstractCegarLoop]: Abstraction has has 465 places, 624 transitions, 8536 flow [2021-12-21 15:16:13,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:16:13,612 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:16:13,612 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:16:13,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-21 15:16:13,613 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:16:13,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:16:13,613 INFO L85 PathProgramCache]: Analyzing trace with hash -319450067, now seen corresponding path program 3 times [2021-12-21 15:16:13,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:16:13,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841498760] [2021-12-21 15:16:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:16:13,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:16:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:16:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-21 15:16:13,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:16:13,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841498760] [2021-12-21 15:16:13,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841498760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:16:13,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:16:13,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:16:13,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793025278] [2021-12-21 15:16:13,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:16:13,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:16:13,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:16:13,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:16:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:16:13,720 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:16:13,721 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 624 transitions, 8536 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:16:13,721 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:16:13,721 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:16:13,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:16:20,200 INFO L129 PetriNetUnfolder]: 5056/26496 cut-off events. [2021-12-21 15:16:20,200 INFO L130 PetriNetUnfolder]: For 148768/151062 co-relation queries the response was YES. [2021-12-21 15:16:20,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79854 conditions, 26496 events. 5056/26496 cut-off events. For 148768/151062 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 339162 event pairs, 1254 based on Foata normal form. 944/27212 useless extension candidates. Maximal degree in co-relation 79760. Up to 3358 conditions per place. [2021-12-21 15:16:20,760 INFO L132 encePairwiseOnDemand]: 255/272 looper letters, 113 selfloop transitions, 107 changer transitions 7/740 dead transitions. [2021-12-21 15:16:20,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 740 transitions, 9944 flow [2021-12-21 15:16:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-21 15:16:20,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-21 15:16:20,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3250 transitions. [2021-12-21 15:16:20,763 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8534663865546218 [2021-12-21 15:16:20,763 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3250 transitions. [2021-12-21 15:16:20,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3250 transitions. [2021-12-21 15:16:20,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:16:20,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3250 transitions. [2021-12-21 15:16:20,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 232.14285714285714) internal successors, (3250), 14 states have internal predecessors, (3250), 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 15:16:20,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 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 15:16:20,771 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 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 15:16:20,771 INFO L186 Difference]: Start difference. First operand has 465 places, 624 transitions, 8536 flow. Second operand 14 states and 3250 transitions. [2021-12-21 15:16:20,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 740 transitions, 9944 flow [2021-12-21 15:16:21,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 740 transitions, 9860 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-12-21 15:16:21,554 INFO L242 Difference]: Finished difference. Result has 481 places, 658 transitions, 9291 flow [2021-12-21 15:16:21,554 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=8468, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9291, PETRI_PLACES=481, PETRI_TRANSITIONS=658} [2021-12-21 15:16:21,555 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 236 predicate places. [2021-12-21 15:16:21,555 INFO L470 AbstractCegarLoop]: Abstraction has has 481 places, 658 transitions, 9291 flow [2021-12-21 15:16:21,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:16:21,555 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:16:21,555 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:16:21,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-21 15:16:21,555 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:16:21,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:16:21,556 INFO L85 PathProgramCache]: Analyzing trace with hash -607127011, now seen corresponding path program 4 times [2021-12-21 15:16:21,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:16:21,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241146342] [2021-12-21 15:16:21,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:16:21,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:16:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:16:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-21 15:16:21,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:16:21,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241146342] [2021-12-21 15:16:21,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241146342] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:16:21,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:16:21,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:16:21,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604760223] [2021-12-21 15:16:21,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:16:21,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:16:21,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:16:21,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:16:21,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:16:21,794 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2021-12-21 15:16:21,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 658 transitions, 9291 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 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 15:16:21,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:16:21,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2021-12-21 15:16:21,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand