./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/fibonacci.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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/fibonacci.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 7f56768e1b40ef6b1b210f9cfb796e99d1f27ee48ed204adfea165b19bcc995e --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 16:48:57,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 16:48:57,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 16:48:57,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 16:48:57,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 16:48:57,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 16:48:57,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 16:48:57,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 16:48:57,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 16:48:57,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 16:48:57,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 16:48:57,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 16:48:57,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 16:48:57,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 16:48:57,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 16:48:57,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 16:48:57,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 16:48:57,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 16:48:57,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 16:48:57,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 16:48:57,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 16:48:57,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 16:48:57,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 16:48:57,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 16:48:57,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 16:48:57,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 16:48:57,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 16:48:57,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 16:48:57,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 16:48:57,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 16:48:57,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 16:48:57,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 16:48:57,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 16:48:57,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 16:48:57,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 16:48:57,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 16:48:57,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 16:48:57,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 16:48:57,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 16:48:57,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 16:48:57,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 16:48:57,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 16:48:57,550 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 16:48:57,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 16:48:57,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 16:48:57,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 16:48:57,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 16:48:57,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 16:48:57,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 16:48:57,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 16:48:57,553 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 16:48:57,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 16:48:57,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 16:48:57,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 16:48:57,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 16:48:57,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 16:48:57,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 16:48:57,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 16:48:57,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 16:48:57,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 16:48:57,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 16:48:57,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 16:48:57,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 16:48:57,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 16:48:57,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 16:48:57,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 16:48:57,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:48:57,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 16:48:57,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 16:48:57,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 16:48:57,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 16:48:57,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 16:48:57,557 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 16:48:57,557 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 16:48:57,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 16:48:57,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 16:48:57,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f56768e1b40ef6b1b210f9cfb796e99d1f27ee48ed204adfea165b19bcc995e [2021-12-14 16:48:57,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 16:48:57,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 16:48:57,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 16:48:57,740 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 16:48:57,740 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 16:48:57,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/fibonacci.wvr.c [2021-12-14 16:48:57,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba3dd5c2/0b8481d5beed46bea62bed7b00d1a74c/FLAG2334c3d09 [2021-12-14 16:48:58,159 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 16:48:58,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/fibonacci.wvr.c [2021-12-14 16:48:58,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba3dd5c2/0b8481d5beed46bea62bed7b00d1a74c/FLAG2334c3d09 [2021-12-14 16:48:58,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba3dd5c2/0b8481d5beed46bea62bed7b00d1a74c [2021-12-14 16:48:58,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 16:48:58,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 16:48:58,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 16:48:58,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 16:48:58,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 16:48:58,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a6e354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58, skipping insertion in model container [2021-12-14 16:48:58,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 16:48:58,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 16:48:58,365 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/fibonacci.wvr.c[2330,2343] [2021-12-14 16:48:58,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:48:58,382 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 16:48:58,397 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/fibonacci.wvr.c[2330,2343] [2021-12-14 16:48:58,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:48:58,410 INFO L208 MainTranslator]: Completed translation [2021-12-14 16:48:58,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58 WrapperNode [2021-12-14 16:48:58,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 16:48:58,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 16:48:58,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 16:48:58,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 16:48:58,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,446 INFO L137 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 170 [2021-12-14 16:48:58,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 16:48:58,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 16:48:58,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 16:48:58,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 16:48:58,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 16:48:58,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 16:48:58,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 16:48:58,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 16:48:58,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (1/1) ... [2021-12-14 16:48:58,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:48:58,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:48:58,512 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) [2021-12-14 16:48:58,514 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 [2021-12-14 16:48:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 16:48:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-14 16:48:58,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-14 16:48:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-14 16:48:58,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-14 16:48:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 16:48:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 16:48:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 16:48:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 16:48:58,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 16:48:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 16:48:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 16:48:58,536 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-14 16:48:58,591 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 16:48:58,592 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 16:48:58,783 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 16:48:58,791 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 16:48:58,791 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 16:48:58,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:48:58 BoogieIcfgContainer [2021-12-14 16:48:58,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 16:48:58,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 16:48:58,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 16:48:58,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 16:48:58,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:48:58" (1/3) ... [2021-12-14 16:48:58,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e8da20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:48:58, skipping insertion in model container [2021-12-14 16:48:58,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:48:58" (2/3) ... [2021-12-14 16:48:58,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e8da20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:48:58, skipping insertion in model container [2021-12-14 16:48:58,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:48:58" (3/3) ... [2021-12-14 16:48:58,801 INFO L111 eAbstractionObserver]: Analyzing ICFG fibonacci.wvr.c [2021-12-14 16:48:58,804 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-14 16:48:58,804 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 16:48:58,804 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 16:48:58,805 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-14 16:48:58,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,850 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,851 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,864 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,864 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,865 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,865 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,865 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,865 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,865 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,865 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,866 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,866 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,866 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,866 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,866 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,867 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,867 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,867 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,867 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,867 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,867 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,872 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,883 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,883 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,883 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,884 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,885 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,885 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,888 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,888 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,888 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,888 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,889 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,889 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,889 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,889 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,889 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,890 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,890 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,890 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,890 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,890 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,891 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,891 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,891 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,891 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,891 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,892 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,892 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,892 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,894 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,894 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,899 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,899 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,901 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,901 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,902 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,902 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,902 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,902 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,903 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,903 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,903 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,906 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,906 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,907 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,907 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,907 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,907 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,907 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,907 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,908 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,910 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,910 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,910 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,910 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,910 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,910 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,911 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,919 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,919 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,919 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,919 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,919 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,919 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,920 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,922 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,924 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,924 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,924 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,924 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,924 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,924 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,926 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,926 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,926 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,926 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,926 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,926 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,926 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,926 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,929 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,929 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,929 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,929 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,929 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,930 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,931 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,931 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,933 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,935 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,935 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,935 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,935 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,936 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,936 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,936 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,936 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,936 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,936 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,937 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,937 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,937 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,937 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,937 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,937 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,938 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,938 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,942 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,943 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,943 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,944 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,944 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,944 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,944 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,944 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,944 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,947 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,947 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,947 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,947 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,947 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,948 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,948 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,948 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,948 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,948 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:48:58,952 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-14 16:48:58,993 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 16:48:58,999 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 [2021-12-14 16:48:58,999 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-14 16:48:59,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 221 places, 230 transitions, 476 flow [2021-12-14 16:48:59,073 INFO L129 PetriNetUnfolder]: 16/228 cut-off events. [2021-12-14 16:48:59,073 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-14 16:48:59,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 228 events. 16/228 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 382 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2021-12-14 16:48:59,085 INFO L82 GeneralOperation]: Start removeDead. Operand has 221 places, 230 transitions, 476 flow [2021-12-14 16:48:59,091 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 219 transitions, 450 flow [2021-12-14 16:48:59,127 INFO L129 PetriNetUnfolder]: 10/170 cut-off events. [2021-12-14 16:48:59,127 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-14 16:48:59,128 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:48:59,128 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:48:59,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:48:59,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:48:59,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1218315603, now seen corresponding path program 1 times [2021-12-14 16:48:59,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:48:59,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612310369] [2021-12-14 16:48:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:48:59,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:48:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:48:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:48:59,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:48:59,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612310369] [2021-12-14 16:48:59,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612310369] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:48:59,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:48:59,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 16:48:59,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708039104] [2021-12-14 16:48:59,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:48:59,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 16:48:59,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:48:59,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 16:48:59,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 16:48:59,379 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 230 [2021-12-14 16:48:59,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 219 transitions, 450 flow. Second operand has 2 states, 2 states have (on average 215.5) internal successors, (431), 2 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:48:59,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:48:59,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 230 [2021-12-14 16:48:59,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:48:59,442 INFO L129 PetriNetUnfolder]: 4/207 cut-off events. [2021-12-14 16:48:59,442 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-12-14 16:48:59,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 207 events. 4/207 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 320 event pairs, 0 based on Foata normal form. 14/207 useless extension candidates. Maximal degree in co-relation 144. Up to 5 conditions per place. [2021-12-14 16:48:59,445 INFO L132 encePairwiseOnDemand]: 218/230 looper letters, 4 selfloop transitions, 0 changer transitions 2/207 dead transitions. [2021-12-14 16:48:59,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 207 transitions, 434 flow [2021-12-14 16:48:59,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 16:48:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-14 16:48:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 442 transitions. [2021-12-14 16:48:59,459 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9608695652173913 [2021-12-14 16:48:59,460 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 442 transitions. [2021-12-14 16:48:59,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 442 transitions. [2021-12-14 16:48:59,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:48:59,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 442 transitions. [2021-12-14 16:48:59,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 221.0) internal successors, (442), 2 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:48:59,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:48:59,475 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:48:59,476 INFO L186 Difference]: Start difference. First operand has 210 places, 219 transitions, 450 flow. Second operand 2 states and 442 transitions. [2021-12-14 16:48:59,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 207 transitions, 434 flow [2021-12-14 16:48:59,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 207 transitions, 426 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-14 16:48:59,483 INFO L242 Difference]: Finished difference. Result has 207 places, 205 transitions, 414 flow [2021-12-14 16:48:59,485 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=414, PETRI_PLACES=207, PETRI_TRANSITIONS=205} [2021-12-14 16:48:59,489 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, -3 predicate places. [2021-12-14 16:48:59,489 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 205 transitions, 414 flow [2021-12-14 16:48:59,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 215.5) internal successors, (431), 2 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:48:59,490 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:48:59,490 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:48:59,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 16:48:59,491 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:48:59,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:48:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash -123752174, now seen corresponding path program 1 times [2021-12-14 16:48:59,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:48:59,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413249741] [2021-12-14 16:48:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:48:59,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:48:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:48:59,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:48:59,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:48:59,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413249741] [2021-12-14 16:48:59,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413249741] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:48:59,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:48:59,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:48:59,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5907158] [2021-12-14 16:48:59,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:48:59,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:48:59,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:48:59,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:48:59,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:48:59,659 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 230 [2021-12-14 16:48:59,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 205 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:48:59,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:48:59,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 230 [2021-12-14 16:48:59,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:48:59,892 INFO L129 PetriNetUnfolder]: 103/1035 cut-off events. [2021-12-14 16:48:59,892 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-12-14 16:48:59,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 1035 events. 103/1035 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5949 event pairs, 11 based on Foata normal form. 0/929 useless extension candidates. Maximal degree in co-relation 1245. Up to 112 conditions per place. [2021-12-14 16:48:59,898 INFO L132 encePairwiseOnDemand]: 219/230 looper letters, 53 selfloop transitions, 13 changer transitions 0/245 dead transitions. [2021-12-14 16:48:59,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 245 transitions, 634 flow [2021-12-14 16:48:59,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:48:59,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:48:59,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1390 transitions. [2021-12-14 16:48:59,902 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8633540372670807 [2021-12-14 16:48:59,902 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1390 transitions. [2021-12-14 16:48:59,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1390 transitions. [2021-12-14 16:48:59,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:48:59,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1390 transitions. [2021-12-14 16:48:59,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 198.57142857142858) internal successors, (1390), 7 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:48:59,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:48:59,910 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:48:59,910 INFO L186 Difference]: Start difference. First operand has 207 places, 205 transitions, 414 flow. Second operand 7 states and 1390 transitions. [2021-12-14 16:48:59,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 245 transitions, 634 flow [2021-12-14 16:48:59,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 245 transitions, 634 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-14 16:48:59,921 INFO L242 Difference]: Finished difference. Result has 214 places, 213 transitions, 485 flow [2021-12-14 16:48:59,922 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=485, PETRI_PLACES=214, PETRI_TRANSITIONS=213} [2021-12-14 16:48:59,922 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 4 predicate places. [2021-12-14 16:48:59,923 INFO L470 AbstractCegarLoop]: Abstraction has has 214 places, 213 transitions, 485 flow [2021-12-14 16:48:59,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:48:59,923 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:48:59,924 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:48:59,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 16:48:59,924 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:48:59,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:48:59,925 INFO L85 PathProgramCache]: Analyzing trace with hash -912411040, now seen corresponding path program 2 times [2021-12-14 16:48:59,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:48:59,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208549703] [2021-12-14 16:48:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:48:59,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:48:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:00,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:00,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:00,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208549703] [2021-12-14 16:49:00,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208549703] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:00,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:00,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:49:00,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8155584] [2021-12-14 16:49:00,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:00,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:49:00,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:00,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:49:00,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:49:00,039 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 230 [2021-12-14 16:49:00,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 213 transitions, 485 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:00,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 230 [2021-12-14 16:49:00,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:00,235 INFO L129 PetriNetUnfolder]: 102/1164 cut-off events. [2021-12-14 16:49:00,235 INFO L130 PetriNetUnfolder]: For 185/189 co-relation queries the response was YES. [2021-12-14 16:49:00,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1543 conditions, 1164 events. 102/1164 cut-off events. For 185/189 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7267 event pairs, 12 based on Foata normal form. 1/1084 useless extension candidates. Maximal degree in co-relation 1536. Up to 117 conditions per place. [2021-12-14 16:49:00,241 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 58 selfloop transitions, 14 changer transitions 0/251 dead transitions. [2021-12-14 16:49:00,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 251 transitions, 741 flow [2021-12-14 16:49:00,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:49:00,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:49:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1391 transitions. [2021-12-14 16:49:00,244 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8639751552795031 [2021-12-14 16:49:00,244 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1391 transitions. [2021-12-14 16:49:00,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1391 transitions. [2021-12-14 16:49:00,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:00,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1391 transitions. [2021-12-14 16:49:00,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 198.71428571428572) internal successors, (1391), 7 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,251 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,251 INFO L186 Difference]: Start difference. First operand has 214 places, 213 transitions, 485 flow. Second operand 7 states and 1391 transitions. [2021-12-14 16:49:00,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 251 transitions, 741 flow [2021-12-14 16:49:00,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 251 transitions, 737 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-14 16:49:00,258 INFO L242 Difference]: Finished difference. Result has 221 places, 219 transitions, 560 flow [2021-12-14 16:49:00,258 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=560, PETRI_PLACES=221, PETRI_TRANSITIONS=219} [2021-12-14 16:49:00,260 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 11 predicate places. [2021-12-14 16:49:00,260 INFO L470 AbstractCegarLoop]: Abstraction has has 221 places, 219 transitions, 560 flow [2021-12-14 16:49:00,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,261 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:00,261 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:00,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 16:49:00,262 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:00,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:00,263 INFO L85 PathProgramCache]: Analyzing trace with hash -673188942, now seen corresponding path program 1 times [2021-12-14 16:49:00,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:00,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641546939] [2021-12-14 16:49:00,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:00,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:00,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:00,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:00,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641546939] [2021-12-14 16:49:00,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641546939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:00,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:00,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:00,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400747417] [2021-12-14 16:49:00,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:00,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:00,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:00,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:00,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:00,392 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:00,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 219 transitions, 560 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:00,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:00,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:00,638 INFO L129 PetriNetUnfolder]: 152/1229 cut-off events. [2021-12-14 16:49:00,638 INFO L130 PetriNetUnfolder]: For 147/152 co-relation queries the response was YES. [2021-12-14 16:49:00,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 1229 events. 152/1229 cut-off events. For 147/152 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7370 event pairs, 66 based on Foata normal form. 3/1153 useless extension candidates. Maximal degree in co-relation 1730. Up to 215 conditions per place. [2021-12-14 16:49:00,657 INFO L132 encePairwiseOnDemand]: 218/230 looper letters, 39 selfloop transitions, 6 changer transitions 16/256 dead transitions. [2021-12-14 16:49:00,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 256 transitions, 765 flow [2021-12-14 16:49:00,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 16:49:00,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-14 16:49:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2545 transitions. [2021-12-14 16:49:00,661 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8511705685618729 [2021-12-14 16:49:00,661 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2545 transitions. [2021-12-14 16:49:00,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2545 transitions. [2021-12-14 16:49:00,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:00,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2545 transitions. [2021-12-14 16:49:00,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 195.76923076923077) internal successors, (2545), 13 states have internal predecessors, (2545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,671 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,671 INFO L186 Difference]: Start difference. First operand has 221 places, 219 transitions, 560 flow. Second operand 13 states and 2545 transitions. [2021-12-14 16:49:00,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 256 transitions, 765 flow [2021-12-14 16:49:00,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 256 transitions, 759 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-12-14 16:49:00,676 INFO L242 Difference]: Finished difference. Result has 242 places, 221 transitions, 607 flow [2021-12-14 16:49:00,677 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=607, PETRI_PLACES=242, PETRI_TRANSITIONS=221} [2021-12-14 16:49:00,677 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 32 predicate places. [2021-12-14 16:49:00,677 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 221 transitions, 607 flow [2021-12-14 16:49:00,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,678 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:00,678 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:00,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 16:49:00,679 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:00,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:00,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1473973244, now seen corresponding path program 1 times [2021-12-14 16:49:00,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:00,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722468502] [2021-12-14 16:49:00,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:00,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:00,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:00,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:00,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722468502] [2021-12-14 16:49:00,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722468502] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:00,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:00,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:49:00,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005389877] [2021-12-14 16:49:00,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:00,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:49:00,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:00,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:49:00,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:49:00,735 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 230 [2021-12-14 16:49:00,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 221 transitions, 607 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:00,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 230 [2021-12-14 16:49:00,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:00,926 INFO L129 PetriNetUnfolder]: 114/1212 cut-off events. [2021-12-14 16:49:00,926 INFO L130 PetriNetUnfolder]: For 605/631 co-relation queries the response was YES. [2021-12-14 16:49:00,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1960 conditions, 1212 events. 114/1212 cut-off events. For 605/631 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7769 event pairs, 25 based on Foata normal form. 11/1136 useless extension candidates. Maximal degree in co-relation 1937. Up to 121 conditions per place. [2021-12-14 16:49:00,932 INFO L132 encePairwiseOnDemand]: 218/230 looper letters, 56 selfloop transitions, 16 changer transitions 0/253 dead transitions. [2021-12-14 16:49:00,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 253 transitions, 859 flow [2021-12-14 16:49:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:49:00,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:49:00,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1390 transitions. [2021-12-14 16:49:00,935 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8633540372670807 [2021-12-14 16:49:00,935 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1390 transitions. [2021-12-14 16:49:00,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1390 transitions. [2021-12-14 16:49:00,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:00,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1390 transitions. [2021-12-14 16:49:00,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 198.57142857142858) internal successors, (1390), 7 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,940 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,940 INFO L186 Difference]: Start difference. First operand has 242 places, 221 transitions, 607 flow. Second operand 7 states and 1390 transitions. [2021-12-14 16:49:00,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 253 transitions, 859 flow [2021-12-14 16:49:00,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 253 transitions, 819 flow, removed 15 selfloop flow, removed 9 redundant places. [2021-12-14 16:49:00,946 INFO L242 Difference]: Finished difference. Result has 235 places, 223 transitions, 654 flow [2021-12-14 16:49:00,947 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=654, PETRI_PLACES=235, PETRI_TRANSITIONS=223} [2021-12-14 16:49:00,947 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 25 predicate places. [2021-12-14 16:49:00,947 INFO L470 AbstractCegarLoop]: Abstraction has has 235 places, 223 transitions, 654 flow [2021-12-14 16:49:00,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:00,948 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:00,948 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:00,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 16:49:00,948 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:00,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:00,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1729373994, now seen corresponding path program 2 times [2021-12-14 16:49:00,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:00,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341160493] [2021-12-14 16:49:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:00,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:00,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:00,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341160493] [2021-12-14 16:49:00,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341160493] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:00,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:00,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:49:00,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747465333] [2021-12-14 16:49:00,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:00,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:49:00,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:00,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:49:00,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:49:01,000 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 230 [2021-12-14 16:49:01,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 223 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:01,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 230 [2021-12-14 16:49:01,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:01,180 INFO L129 PetriNetUnfolder]: 110/1203 cut-off events. [2021-12-14 16:49:01,180 INFO L130 PetriNetUnfolder]: For 730/746 co-relation queries the response was YES. [2021-12-14 16:49:01,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1885 conditions, 1203 events. 110/1203 cut-off events. For 730/746 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7700 event pairs, 23 based on Foata normal form. 7/1121 useless extension candidates. Maximal degree in co-relation 1866. Up to 135 conditions per place. [2021-12-14 16:49:01,187 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 58 selfloop transitions, 14 changer transitions 0/253 dead transitions. [2021-12-14 16:49:01,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 253 transitions, 887 flow [2021-12-14 16:49:01,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:49:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:49:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1389 transitions. [2021-12-14 16:49:01,189 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8627329192546583 [2021-12-14 16:49:01,189 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1389 transitions. [2021-12-14 16:49:01,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1389 transitions. [2021-12-14 16:49:01,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:01,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1389 transitions. [2021-12-14 16:49:01,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 198.42857142857142) internal successors, (1389), 7 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,194 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,195 INFO L186 Difference]: Start difference. First operand has 235 places, 223 transitions, 654 flow. Second operand 7 states and 1389 transitions. [2021-12-14 16:49:01,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 253 transitions, 887 flow [2021-12-14 16:49:01,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 253 transitions, 872 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-12-14 16:49:01,200 INFO L242 Difference]: Finished difference. Result has 241 places, 225 transitions, 706 flow [2021-12-14 16:49:01,201 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=706, PETRI_PLACES=241, PETRI_TRANSITIONS=225} [2021-12-14 16:49:01,202 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 31 predicate places. [2021-12-14 16:49:01,202 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 225 transitions, 706 flow [2021-12-14 16:49:01,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,203 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:01,203 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:01,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 16:49:01,203 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:01,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash 592781596, now seen corresponding path program 2 times [2021-12-14 16:49:01,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:01,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341295084] [2021-12-14 16:49:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:01,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:01,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:01,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341295084] [2021-12-14 16:49:01,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341295084] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:01,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:01,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:01,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42621261] [2021-12-14 16:49:01,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:01,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:01,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:01,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:01,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:01,288 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:01,289 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 225 transitions, 706 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:01,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:01,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:01,533 INFO L129 PetriNetUnfolder]: 153/1487 cut-off events. [2021-12-14 16:49:01,534 INFO L130 PetriNetUnfolder]: For 634/647 co-relation queries the response was YES. [2021-12-14 16:49:01,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2407 conditions, 1487 events. 153/1487 cut-off events. For 634/647 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9667 event pairs, 76 based on Foata normal form. 3/1396 useless extension candidates. Maximal degree in co-relation 2385. Up to 259 conditions per place. [2021-12-14 16:49:01,543 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 34 selfloop transitions, 8 changer transitions 12/253 dead transitions. [2021-12-14 16:49:01,543 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 253 transitions, 925 flow [2021-12-14 16:49:01,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 16:49:01,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-14 16:49:01,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2152 transitions. [2021-12-14 16:49:01,547 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.850592885375494 [2021-12-14 16:49:01,547 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2152 transitions. [2021-12-14 16:49:01,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2152 transitions. [2021-12-14 16:49:01,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:01,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2152 transitions. [2021-12-14 16:49:01,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 195.63636363636363) internal successors, (2152), 11 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 230.0) internal successors, (2760), 12 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,556 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 230.0) internal successors, (2760), 12 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,556 INFO L186 Difference]: Start difference. First operand has 241 places, 225 transitions, 706 flow. Second operand 11 states and 2152 transitions. [2021-12-14 16:49:01,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 253 transitions, 925 flow [2021-12-14 16:49:01,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 253 transitions, 912 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-12-14 16:49:01,563 INFO L242 Difference]: Finished difference. Result has 256 places, 232 transitions, 771 flow [2021-12-14 16:49:01,563 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=771, PETRI_PLACES=256, PETRI_TRANSITIONS=232} [2021-12-14 16:49:01,564 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 46 predicate places. [2021-12-14 16:49:01,564 INFO L470 AbstractCegarLoop]: Abstraction has has 256 places, 232 transitions, 771 flow [2021-12-14 16:49:01,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,565 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:01,565 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:01,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 16:49:01,566 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:01,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:01,566 INFO L85 PathProgramCache]: Analyzing trace with hash 963975448, now seen corresponding path program 1 times [2021-12-14 16:49:01,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:01,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742976207] [2021-12-14 16:49:01,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:01,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:01,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:01,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742976207] [2021-12-14 16:49:01,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742976207] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:01,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:01,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:01,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443611098] [2021-12-14 16:49:01,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:01,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:01,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:01,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:01,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:01,642 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:01,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 232 transitions, 771 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:01,644 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:01,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:01,873 INFO L129 PetriNetUnfolder]: 159/1511 cut-off events. [2021-12-14 16:49:01,873 INFO L130 PetriNetUnfolder]: For 1134/1159 co-relation queries the response was YES. [2021-12-14 16:49:01,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 1511 events. 159/1511 cut-off events. For 1134/1159 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 9883 event pairs, 68 based on Foata normal form. 3/1421 useless extension candidates. Maximal degree in co-relation 2779. Up to 275 conditions per place. [2021-12-14 16:49:01,884 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 40 selfloop transitions, 8 changer transitions 12/259 dead transitions. [2021-12-14 16:49:01,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 259 transitions, 1043 flow [2021-12-14 16:49:01,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 16:49:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-14 16:49:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2152 transitions. [2021-12-14 16:49:01,888 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.850592885375494 [2021-12-14 16:49:01,888 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2152 transitions. [2021-12-14 16:49:01,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2152 transitions. [2021-12-14 16:49:01,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:01,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2152 transitions. [2021-12-14 16:49:01,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 195.63636363636363) internal successors, (2152), 11 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 230.0) internal successors, (2760), 12 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,895 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 230.0) internal successors, (2760), 12 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,896 INFO L186 Difference]: Start difference. First operand has 256 places, 232 transitions, 771 flow. Second operand 11 states and 2152 transitions. [2021-12-14 16:49:01,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 259 transitions, 1043 flow [2021-12-14 16:49:01,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 259 transitions, 1023 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-12-14 16:49:01,903 INFO L242 Difference]: Finished difference. Result has 265 places, 238 transitions, 834 flow [2021-12-14 16:49:01,904 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=834, PETRI_PLACES=265, PETRI_TRANSITIONS=238} [2021-12-14 16:49:01,904 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 55 predicate places. [2021-12-14 16:49:01,904 INFO L470 AbstractCegarLoop]: Abstraction has has 265 places, 238 transitions, 834 flow [2021-12-14 16:49:01,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,905 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:01,905 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:01,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 16:49:01,906 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:01,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:01,906 INFO L85 PathProgramCache]: Analyzing trace with hash -769828056, now seen corresponding path program 2 times [2021-12-14 16:49:01,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:01,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023513313] [2021-12-14 16:49:01,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:01,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:01,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:01,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:01,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023513313] [2021-12-14 16:49:01,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023513313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:01,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:01,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:01,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631756984] [2021-12-14 16:49:01,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:01,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:01,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:01,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:01,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:01,965 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:01,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 238 transitions, 834 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:01,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:01,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:01,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:02,233 INFO L129 PetriNetUnfolder]: 155/1519 cut-off events. [2021-12-14 16:49:02,234 INFO L130 PetriNetUnfolder]: For 1707/1744 co-relation queries the response was YES. [2021-12-14 16:49:02,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3073 conditions, 1519 events. 155/1519 cut-off events. For 1707/1744 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 10005 event pairs, 52 based on Foata normal form. 7/1437 useless extension candidates. Maximal degree in co-relation 3037. Up to 211 conditions per place. [2021-12-14 16:49:02,246 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 57 selfloop transitions, 6 changer transitions 17/279 dead transitions. [2021-12-14 16:49:02,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 279 transitions, 1263 flow [2021-12-14 16:49:02,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 16:49:02,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-14 16:49:02,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2543 transitions. [2021-12-14 16:49:02,253 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8505016722408026 [2021-12-14 16:49:02,253 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2543 transitions. [2021-12-14 16:49:02,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2543 transitions. [2021-12-14 16:49:02,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:02,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2543 transitions. [2021-12-14 16:49:02,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 195.6153846153846) internal successors, (2543), 13 states have internal predecessors, (2543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,263 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,263 INFO L186 Difference]: Start difference. First operand has 265 places, 238 transitions, 834 flow. Second operand 13 states and 2543 transitions. [2021-12-14 16:49:02,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 279 transitions, 1263 flow [2021-12-14 16:49:02,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 279 transitions, 1160 flow, removed 45 selfloop flow, removed 7 redundant places. [2021-12-14 16:49:02,274 INFO L242 Difference]: Finished difference. Result has 275 places, 239 transitions, 843 flow [2021-12-14 16:49:02,274 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=843, PETRI_PLACES=275, PETRI_TRANSITIONS=239} [2021-12-14 16:49:02,275 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 65 predicate places. [2021-12-14 16:49:02,275 INFO L470 AbstractCegarLoop]: Abstraction has has 275 places, 239 transitions, 843 flow [2021-12-14 16:49:02,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,276 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:02,276 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:02,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 16:49:02,277 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:02,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:02,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1693242874, now seen corresponding path program 3 times [2021-12-14 16:49:02,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:02,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136781282] [2021-12-14 16:49:02,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:02,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:02,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:02,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:02,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136781282] [2021-12-14 16:49:02,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136781282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:02,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:02,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:02,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039169723] [2021-12-14 16:49:02,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:02,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:02,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:02,356 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:02,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 239 transitions, 843 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:02,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:02,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:02,596 INFO L129 PetriNetUnfolder]: 152/1535 cut-off events. [2021-12-14 16:49:02,596 INFO L130 PetriNetUnfolder]: For 1906/1949 co-relation queries the response was YES. [2021-12-14 16:49:02,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3125 conditions, 1535 events. 152/1535 cut-off events. For 1906/1949 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 10218 event pairs, 46 based on Foata normal form. 5/1452 useless extension candidates. Maximal degree in co-relation 3085. Up to 195 conditions per place. [2021-12-14 16:49:02,606 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 59 selfloop transitions, 6 changer transitions 16/280 dead transitions. [2021-12-14 16:49:02,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 280 transitions, 1305 flow [2021-12-14 16:49:02,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 16:49:02,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-14 16:49:02,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2545 transitions. [2021-12-14 16:49:02,610 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8511705685618729 [2021-12-14 16:49:02,610 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2545 transitions. [2021-12-14 16:49:02,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2545 transitions. [2021-12-14 16:49:02,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:02,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2545 transitions. [2021-12-14 16:49:02,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 195.76923076923077) internal successors, (2545), 13 states have internal predecessors, (2545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,617 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,617 INFO L186 Difference]: Start difference. First operand has 275 places, 239 transitions, 843 flow. Second operand 13 states and 2545 transitions. [2021-12-14 16:49:02,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 280 transitions, 1305 flow [2021-12-14 16:49:02,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 280 transitions, 1259 flow, removed 21 selfloop flow, removed 8 redundant places. [2021-12-14 16:49:02,627 INFO L242 Difference]: Finished difference. Result has 280 places, 239 transitions, 862 flow [2021-12-14 16:49:02,627 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=862, PETRI_PLACES=280, PETRI_TRANSITIONS=239} [2021-12-14 16:49:02,628 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 70 predicate places. [2021-12-14 16:49:02,628 INFO L470 AbstractCegarLoop]: Abstraction has has 280 places, 239 transitions, 862 flow [2021-12-14 16:49:02,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,628 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:02,628 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:02,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 16:49:02,629 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:02,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:02,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1108970958, now seen corresponding path program 4 times [2021-12-14 16:49:02,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:02,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241120672] [2021-12-14 16:49:02,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:02,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:02,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:02,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241120672] [2021-12-14 16:49:02,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241120672] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:02,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:02,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:02,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459173604] [2021-12-14 16:49:02,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:02,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:02,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:02,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:02,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:02,677 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:02,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 239 transitions, 862 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:02,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:02,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:02,888 INFO L129 PetriNetUnfolder]: 139/1389 cut-off events. [2021-12-14 16:49:02,889 INFO L130 PetriNetUnfolder]: For 2224/2272 co-relation queries the response was YES. [2021-12-14 16:49:02,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3051 conditions, 1389 events. 139/1389 cut-off events. For 2224/2272 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 8934 event pairs, 64 based on Foata normal form. 3/1310 useless extension candidates. Maximal degree in co-relation 3009. Up to 285 conditions per place. [2021-12-14 16:49:02,899 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 42 selfloop transitions, 10 changer transitions 11/262 dead transitions. [2021-12-14 16:49:02,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 262 transitions, 1204 flow [2021-12-14 16:49:02,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 16:49:02,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-14 16:49:02,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2150 transitions. [2021-12-14 16:49:02,902 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.849802371541502 [2021-12-14 16:49:02,902 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2150 transitions. [2021-12-14 16:49:02,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2150 transitions. [2021-12-14 16:49:02,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:02,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2150 transitions. [2021-12-14 16:49:02,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 195.45454545454547) internal successors, (2150), 11 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 230.0) internal successors, (2760), 12 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,910 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 230.0) internal successors, (2760), 12 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,910 INFO L186 Difference]: Start difference. First operand has 280 places, 239 transitions, 862 flow. Second operand 11 states and 2150 transitions. [2021-12-14 16:49:02,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 262 transitions, 1204 flow [2021-12-14 16:49:02,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 262 transitions, 1125 flow, removed 23 selfloop flow, removed 11 redundant places. [2021-12-14 16:49:02,919 INFO L242 Difference]: Finished difference. Result has 279 places, 245 transitions, 940 flow [2021-12-14 16:49:02,920 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=940, PETRI_PLACES=279, PETRI_TRANSITIONS=245} [2021-12-14 16:49:02,920 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 69 predicate places. [2021-12-14 16:49:02,920 INFO L470 AbstractCegarLoop]: Abstraction has has 279 places, 245 transitions, 940 flow [2021-12-14 16:49:02,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:02,921 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:02,921 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:02,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 16:49:02,921 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:02,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:02,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1358536022, now seen corresponding path program 5 times [2021-12-14 16:49:02,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:02,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663692448] [2021-12-14 16:49:02,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:02,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:03,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:03,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663692448] [2021-12-14 16:49:03,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663692448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:03,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:03,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:03,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917335333] [2021-12-14 16:49:03,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:03,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:03,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:03,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:03,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:03,004 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:03,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 245 transitions, 940 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:03,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:03,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:03,219 INFO L129 PetriNetUnfolder]: 133/1467 cut-off events. [2021-12-14 16:49:03,219 INFO L130 PetriNetUnfolder]: For 2100/2157 co-relation queries the response was YES. [2021-12-14 16:49:03,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3031 conditions, 1467 events. 133/1467 cut-off events. For 2100/2157 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9640 event pairs, 60 based on Foata normal form. 11/1391 useless extension candidates. Maximal degree in co-relation 2989. Up to 265 conditions per place. [2021-12-14 16:49:03,231 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 41 selfloop transitions, 4 changer transitions 18/262 dead transitions. [2021-12-14 16:49:03,231 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 262 transitions, 1198 flow [2021-12-14 16:49:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 16:49:03,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-14 16:49:03,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2341 transitions. [2021-12-14 16:49:03,234 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8481884057971014 [2021-12-14 16:49:03,234 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2341 transitions. [2021-12-14 16:49:03,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2341 transitions. [2021-12-14 16:49:03,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:03,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2341 transitions. [2021-12-14 16:49:03,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 195.08333333333334) internal successors, (2341), 12 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 230.0) internal successors, (2990), 13 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,241 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 230.0) internal successors, (2990), 13 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,241 INFO L186 Difference]: Start difference. First operand has 279 places, 245 transitions, 940 flow. Second operand 12 states and 2341 transitions. [2021-12-14 16:49:03,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 262 transitions, 1198 flow [2021-12-14 16:49:03,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 262 transitions, 1141 flow, removed 25 selfloop flow, removed 5 redundant places. [2021-12-14 16:49:03,251 INFO L242 Difference]: Finished difference. Result has 286 places, 239 transitions, 862 flow [2021-12-14 16:49:03,252 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=862, PETRI_PLACES=286, PETRI_TRANSITIONS=239} [2021-12-14 16:49:03,252 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 76 predicate places. [2021-12-14 16:49:03,252 INFO L470 AbstractCegarLoop]: Abstraction has has 286 places, 239 transitions, 862 flow [2021-12-14 16:49:03,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,253 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:03,253 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:03,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 16:49:03,253 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:03,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1201816088, now seen corresponding path program 6 times [2021-12-14 16:49:03,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:03,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286809165] [2021-12-14 16:49:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:03,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:03,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:03,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:03,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286809165] [2021-12-14 16:49:03,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286809165] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:03,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:03,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:03,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965066567] [2021-12-14 16:49:03,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:03,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:03,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:03,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:03,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:03,301 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:03,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 239 transitions, 862 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:03,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:03,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:03,539 INFO L129 PetriNetUnfolder]: 127/1421 cut-off events. [2021-12-14 16:49:03,539 INFO L130 PetriNetUnfolder]: For 1953/2006 co-relation queries the response was YES. [2021-12-14 16:49:03,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2831 conditions, 1421 events. 127/1421 cut-off events. For 1953/2006 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 9146 event pairs, 60 based on Foata normal form. 5/1338 useless extension candidates. Maximal degree in co-relation 2787. Up to 241 conditions per place. [2021-12-14 16:49:03,551 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 36 selfloop transitions, 2 changer transitions 19/254 dead transitions. [2021-12-14 16:49:03,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 254 transitions, 1071 flow [2021-12-14 16:49:03,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 16:49:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-14 16:49:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2340 transitions. [2021-12-14 16:49:03,553 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8478260869565217 [2021-12-14 16:49:03,554 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2340 transitions. [2021-12-14 16:49:03,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2340 transitions. [2021-12-14 16:49:03,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:03,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2340 transitions. [2021-12-14 16:49:03,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 195.0) internal successors, (2340), 12 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 230.0) internal successors, (2990), 13 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,559 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 230.0) internal successors, (2990), 13 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,559 INFO L186 Difference]: Start difference. First operand has 286 places, 239 transitions, 862 flow. Second operand 12 states and 2340 transitions. [2021-12-14 16:49:03,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 254 transitions, 1071 flow [2021-12-14 16:49:03,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 254 transitions, 1007 flow, removed 19 selfloop flow, removed 13 redundant places. [2021-12-14 16:49:03,568 INFO L242 Difference]: Finished difference. Result has 278 places, 231 transitions, 774 flow [2021-12-14 16:49:03,569 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=774, PETRI_PLACES=278, PETRI_TRANSITIONS=231} [2021-12-14 16:49:03,569 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 68 predicate places. [2021-12-14 16:49:03,570 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 231 transitions, 774 flow [2021-12-14 16:49:03,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,570 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:03,570 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:03,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 16:49:03,571 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:03,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:03,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1115789980, now seen corresponding path program 3 times [2021-12-14 16:49:03,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:03,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406517620] [2021-12-14 16:49:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:03,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:03,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:03,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:03,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406517620] [2021-12-14 16:49:03,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406517620] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:03,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:03,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:03,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743801162] [2021-12-14 16:49:03,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:03,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:03,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:03,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:03,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:03,616 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:03,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 231 transitions, 774 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:03,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:03,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:03,853 INFO L129 PetriNetUnfolder]: 124/1396 cut-off events. [2021-12-14 16:49:03,853 INFO L130 PetriNetUnfolder]: For 1369/1402 co-relation queries the response was YES. [2021-12-14 16:49:03,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2594 conditions, 1396 events. 124/1396 cut-off events. For 1369/1402 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8977 event pairs, 36 based on Foata normal form. 7/1321 useless extension candidates. Maximal degree in co-relation 2554. Up to 132 conditions per place. [2021-12-14 16:49:03,863 INFO L132 encePairwiseOnDemand]: 219/230 looper letters, 49 selfloop transitions, 8 changer transitions 17/271 dead transitions. [2021-12-14 16:49:03,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 271 transitions, 1141 flow [2021-12-14 16:49:03,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 16:49:03,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-14 16:49:03,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2543 transitions. [2021-12-14 16:49:03,866 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8505016722408026 [2021-12-14 16:49:03,866 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2543 transitions. [2021-12-14 16:49:03,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2543 transitions. [2021-12-14 16:49:03,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:03,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2543 transitions. [2021-12-14 16:49:03,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 195.6153846153846) internal successors, (2543), 13 states have internal predecessors, (2543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,872 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,872 INFO L186 Difference]: Start difference. First operand has 278 places, 231 transitions, 774 flow. Second operand 13 states and 2543 transitions. [2021-12-14 16:49:03,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 271 transitions, 1141 flow [2021-12-14 16:49:03,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 271 transitions, 1070 flow, removed 24 selfloop flow, removed 14 redundant places. [2021-12-14 16:49:03,880 INFO L242 Difference]: Finished difference. Result has 273 places, 231 transitions, 776 flow [2021-12-14 16:49:03,881 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=776, PETRI_PLACES=273, PETRI_TRANSITIONS=231} [2021-12-14 16:49:03,881 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 63 predicate places. [2021-12-14 16:49:03,881 INFO L470 AbstractCegarLoop]: Abstraction has has 273 places, 231 transitions, 776 flow [2021-12-14 16:49:03,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,882 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:03,882 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:03,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 16:49:03,882 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:03,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:03,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1968758762, now seen corresponding path program 4 times [2021-12-14 16:49:03,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:03,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801808329] [2021-12-14 16:49:03,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:03,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:03,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:03,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:03,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801808329] [2021-12-14 16:49:03,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801808329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:03,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:03,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:03,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426998849] [2021-12-14 16:49:03,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:03,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:03,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:03,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:03,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:03,925 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:03,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 231 transitions, 776 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:03,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:03,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:03,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:04,111 INFO L129 PetriNetUnfolder]: 114/1260 cut-off events. [2021-12-14 16:49:04,111 INFO L130 PetriNetUnfolder]: For 1423/1462 co-relation queries the response was YES. [2021-12-14 16:49:04,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2439 conditions, 1260 events. 114/1260 cut-off events. For 1423/1462 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7730 event pairs, 44 based on Foata normal form. 3/1188 useless extension candidates. Maximal degree in co-relation 2400. Up to 194 conditions per place. [2021-12-14 16:49:04,120 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 37 selfloop transitions, 10 changer transitions 12/256 dead transitions. [2021-12-14 16:49:04,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 256 transitions, 1084 flow [2021-12-14 16:49:04,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 16:49:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-14 16:49:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2343 transitions. [2021-12-14 16:49:04,123 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8489130434782609 [2021-12-14 16:49:04,123 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2343 transitions. [2021-12-14 16:49:04,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2343 transitions. [2021-12-14 16:49:04,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:04,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2343 transitions. [2021-12-14 16:49:04,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 195.25) internal successors, (2343), 12 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 230.0) internal successors, (2990), 13 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,152 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 230.0) internal successors, (2990), 13 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,153 INFO L186 Difference]: Start difference. First operand has 273 places, 231 transitions, 776 flow. Second operand 12 states and 2343 transitions. [2021-12-14 16:49:04,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 256 transitions, 1084 flow [2021-12-14 16:49:04,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 256 transitions, 1000 flow, removed 18 selfloop flow, removed 12 redundant places. [2021-12-14 16:49:04,160 INFO L242 Difference]: Finished difference. Result has 271 places, 237 transitions, 832 flow [2021-12-14 16:49:04,160 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=832, PETRI_PLACES=271, PETRI_TRANSITIONS=237} [2021-12-14 16:49:04,160 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 61 predicate places. [2021-12-14 16:49:04,161 INFO L470 AbstractCegarLoop]: Abstraction has has 271 places, 237 transitions, 832 flow [2021-12-14 16:49:04,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,161 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:04,161 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:04,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 16:49:04,162 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash -416983822, now seen corresponding path program 5 times [2021-12-14 16:49:04,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:04,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052606361] [2021-12-14 16:49:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:04,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:04,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:04,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:04,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052606361] [2021-12-14 16:49:04,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052606361] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:04,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:04,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:04,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675461124] [2021-12-14 16:49:04,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:04,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:04,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:04,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:04,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:04,206 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:04,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 237 transitions, 832 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:04,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:04,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:04,406 INFO L129 PetriNetUnfolder]: 106/1340 cut-off events. [2021-12-14 16:49:04,407 INFO L130 PetriNetUnfolder]: For 1450/1504 co-relation queries the response was YES. [2021-12-14 16:49:04,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 1340 events. 106/1340 cut-off events. For 1450/1504 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8476 event pairs, 44 based on Foata normal form. 11/1269 useless extension candidates. Maximal degree in co-relation 2419. Up to 192 conditions per place. [2021-12-14 16:49:04,417 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 35 selfloop transitions, 4 changer transitions 16/252 dead transitions. [2021-12-14 16:49:04,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 252 transitions, 1038 flow [2021-12-14 16:49:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 16:49:04,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-14 16:49:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2148 transitions. [2021-12-14 16:49:04,420 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8490118577075099 [2021-12-14 16:49:04,420 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2148 transitions. [2021-12-14 16:49:04,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2148 transitions. [2021-12-14 16:49:04,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:04,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2148 transitions. [2021-12-14 16:49:04,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 230.0) internal successors, (2760), 12 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,425 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 230.0) internal successors, (2760), 12 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,426 INFO L186 Difference]: Start difference. First operand has 271 places, 237 transitions, 832 flow. Second operand 11 states and 2148 transitions. [2021-12-14 16:49:04,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 252 transitions, 1038 flow [2021-12-14 16:49:04,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 252 transitions, 1012 flow, removed 13 selfloop flow, removed 3 redundant places. [2021-12-14 16:49:04,436 INFO L242 Difference]: Finished difference. Result has 277 places, 231 transitions, 778 flow [2021-12-14 16:49:04,436 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=778, PETRI_PLACES=277, PETRI_TRANSITIONS=231} [2021-12-14 16:49:04,437 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 67 predicate places. [2021-12-14 16:49:04,438 INFO L470 AbstractCegarLoop]: Abstraction has has 277 places, 231 transitions, 778 flow [2021-12-14 16:49:04,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,439 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:04,439 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:04,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 16:49:04,440 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:04,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:04,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1458226200, now seen corresponding path program 6 times [2021-12-14 16:49:04,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:04,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133578699] [2021-12-14 16:49:04,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:04,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:04,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:04,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133578699] [2021-12-14 16:49:04,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133578699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:04,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:04,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 16:49:04,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496735367] [2021-12-14 16:49:04,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:04,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 16:49:04,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 16:49:04,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 16:49:04,485 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 230 [2021-12-14 16:49:04,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 231 transitions, 778 flow. Second operand has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:04,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 230 [2021-12-14 16:49:04,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:04,676 INFO L129 PetriNetUnfolder]: 102/1296 cut-off events. [2021-12-14 16:49:04,676 INFO L130 PetriNetUnfolder]: For 1523/1573 co-relation queries the response was YES. [2021-12-14 16:49:04,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2338 conditions, 1296 events. 102/1296 cut-off events. For 1523/1573 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 8061 event pairs, 44 based on Foata normal form. 5/1218 useless extension candidates. Maximal degree in co-relation 2297. Up to 164 conditions per place. [2021-12-14 16:49:04,689 INFO L132 encePairwiseOnDemand]: 221/230 looper letters, 30 selfloop transitions, 2 changer transitions 19/246 dead transitions. [2021-12-14 16:49:04,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 246 transitions, 973 flow [2021-12-14 16:49:04,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 16:49:04,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-14 16:49:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2340 transitions. [2021-12-14 16:49:04,694 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8478260869565217 [2021-12-14 16:49:04,694 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2340 transitions. [2021-12-14 16:49:04,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2340 transitions. [2021-12-14 16:49:04,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:04,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2340 transitions. [2021-12-14 16:49:04,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 195.0) internal successors, (2340), 12 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 230.0) internal successors, (2990), 13 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,702 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 230.0) internal successors, (2990), 13 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,702 INFO L186 Difference]: Start difference. First operand has 277 places, 231 transitions, 778 flow. Second operand 12 states and 2340 transitions. [2021-12-14 16:49:04,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 246 transitions, 973 flow [2021-12-14 16:49:04,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 246 transitions, 923 flow, removed 16 selfloop flow, removed 11 redundant places. [2021-12-14 16:49:04,709 INFO L242 Difference]: Finished difference. Result has 272 places, 223 transitions, 709 flow [2021-12-14 16:49:04,710 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=709, PETRI_PLACES=272, PETRI_TRANSITIONS=223} [2021-12-14 16:49:04,711 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 62 predicate places. [2021-12-14 16:49:04,711 INFO L470 AbstractCegarLoop]: Abstraction has has 272 places, 223 transitions, 709 flow [2021-12-14 16:49:04,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 193.75) internal successors, (1550), 8 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,711 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:04,712 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] [2021-12-14 16:49:04,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 16:49:04,712 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:04,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:04,712 INFO L85 PathProgramCache]: Analyzing trace with hash 522220320, now seen corresponding path program 1 times [2021-12-14 16:49:04,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:04,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14282273] [2021-12-14 16:49:04,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:04,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:04,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:04,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14282273] [2021-12-14 16:49:04,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14282273] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:04,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:04,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 16:49:04,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816033623] [2021-12-14 16:49:04,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:04,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 16:49:04,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:04,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 16:49:04,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 16:49:04,755 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 230 [2021-12-14 16:49:04,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 223 transitions, 709 flow. Second operand has 5 states, 5 states have (on average 203.6) internal successors, (1018), 5 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:04,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:04,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 230 [2021-12-14 16:49:04,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:04,986 INFO L129 PetriNetUnfolder]: 130/2075 cut-off events. [2021-12-14 16:49:04,986 INFO L130 PetriNetUnfolder]: For 1225/1247 co-relation queries the response was YES. [2021-12-14 16:49:04,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3190 conditions, 2075 events. 130/2075 cut-off events. For 1225/1247 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 14876 event pairs, 49 based on Foata normal form. 1/1912 useless extension candidates. Maximal degree in co-relation 3151. Up to 120 conditions per place. [2021-12-14 16:49:05,000 INFO L132 encePairwiseOnDemand]: 223/230 looper letters, 27 selfloop transitions, 5 changer transitions 3/242 dead transitions. [2021-12-14 16:49:05,001 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 242 transitions, 821 flow [2021-12-14 16:49:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:49:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:49:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1242 transitions. [2021-12-14 16:49:05,003 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-12-14 16:49:05,003 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1242 transitions. [2021-12-14 16:49:05,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1242 transitions. [2021-12-14 16:49:05,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:05,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1242 transitions. [2021-12-14 16:49:05,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.0) internal successors, (1242), 6 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:05,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 230.0) internal successors, (1610), 7 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:05,007 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 230.0) internal successors, (1610), 7 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:05,007 INFO L186 Difference]: Start difference. First operand has 272 places, 223 transitions, 709 flow. Second operand 6 states and 1242 transitions. [2021-12-14 16:49:05,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 242 transitions, 821 flow [2021-12-14 16:49:05,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 242 transitions, 783 flow, removed 9 selfloop flow, removed 14 redundant places. [2021-12-14 16:49:05,016 INFO L242 Difference]: Finished difference. Result has 254 places, 225 transitions, 697 flow [2021-12-14 16:49:05,017 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=697, PETRI_PLACES=254, PETRI_TRANSITIONS=225} [2021-12-14 16:49:05,017 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 44 predicate places. [2021-12-14 16:49:05,017 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 225 transitions, 697 flow [2021-12-14 16:49:05,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 203.6) internal successors, (1018), 5 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:05,018 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:05,018 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] [2021-12-14 16:49:05,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 16:49:05,018 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:05,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:05,019 INFO L85 PathProgramCache]: Analyzing trace with hash 658946078, now seen corresponding path program 2 times [2021-12-14 16:49:05,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:05,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057730035] [2021-12-14 16:49:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:05,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:05,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:05,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057730035] [2021-12-14 16:49:05,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057730035] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:49:05,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864018548] [2021-12-14 16:49:05,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 16:49:05,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:05,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:49:05,066 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) [2021-12-14 16:49:05,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 16:49:05,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 16:49:05,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:49:05,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 16:49:05,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:49:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:05,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:49:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:05,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864018548] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:49:05,624 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:49:05,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2021-12-14 16:49:05,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496514566] [2021-12-14 16:49:05,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:49:05,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 16:49:05,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:05,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 16:49:05,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-14 16:49:05,627 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 230 [2021-12-14 16:49:05,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 225 transitions, 697 flow. Second operand has 9 states, 9 states have (on average 203.22222222222223) internal successors, (1829), 9 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:05,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:05,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 230 [2021-12-14 16:49:05,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:06,038 INFO L129 PetriNetUnfolder]: 191/3256 cut-off events. [2021-12-14 16:49:06,039 INFO L130 PetriNetUnfolder]: For 1154/1186 co-relation queries the response was YES. [2021-12-14 16:49:06,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4669 conditions, 3256 events. 191/3256 cut-off events. For 1154/1186 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 25567 event pairs, 41 based on Foata normal form. 9/3067 useless extension candidates. Maximal degree in co-relation 4637. Up to 80 conditions per place. [2021-12-14 16:49:06,057 INFO L132 encePairwiseOnDemand]: 222/230 looper letters, 51 selfloop transitions, 31 changer transitions 1/290 dead transitions. [2021-12-14 16:49:06,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 290 transitions, 1077 flow [2021-12-14 16:49:06,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 16:49:06,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-14 16:49:06,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2890 transitions. [2021-12-14 16:49:06,060 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8975155279503105 [2021-12-14 16:49:06,060 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2890 transitions. [2021-12-14 16:49:06,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2890 transitions. [2021-12-14 16:49:06,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:06,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2890 transitions. [2021-12-14 16:49:06,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 206.42857142857142) internal successors, (2890), 14 states have internal predecessors, (2890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:06,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 230.0) internal successors, (3450), 15 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:06,067 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 230.0) internal successors, (3450), 15 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:06,067 INFO L186 Difference]: Start difference. First operand has 254 places, 225 transitions, 697 flow. Second operand 14 states and 2890 transitions. [2021-12-14 16:49:06,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 290 transitions, 1077 flow [2021-12-14 16:49:06,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 290 transitions, 1050 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-12-14 16:49:06,076 INFO L242 Difference]: Finished difference. Result has 270 places, 257 transitions, 909 flow [2021-12-14 16:49:06,076 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=909, PETRI_PLACES=270, PETRI_TRANSITIONS=257} [2021-12-14 16:49:06,077 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 60 predicate places. [2021-12-14 16:49:06,077 INFO L470 AbstractCegarLoop]: Abstraction has has 270 places, 257 transitions, 909 flow [2021-12-14 16:49:06,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 203.22222222222223) internal successors, (1829), 9 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:06,077 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:06,077 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] [2021-12-14 16:49:06,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 16:49:06,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:06,304 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:06,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:06,305 INFO L85 PathProgramCache]: Analyzing trace with hash -603143444, now seen corresponding path program 3 times [2021-12-14 16:49:06,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:06,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518622431] [2021-12-14 16:49:06,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:06,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:06,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:06,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:06,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518622431] [2021-12-14 16:49:06,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518622431] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:06,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:06,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 16:49:06,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800467129] [2021-12-14 16:49:06,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:06,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 16:49:06,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:06,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 16:49:06,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 16:49:06,351 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 230 [2021-12-14 16:49:06,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 257 transitions, 909 flow. Second operand has 5 states, 5 states have (on average 203.6) internal successors, (1018), 5 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:06,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:06,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 230 [2021-12-14 16:49:06,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:06,735 INFO L129 PetriNetUnfolder]: 232/3508 cut-off events. [2021-12-14 16:49:06,736 INFO L130 PetriNetUnfolder]: For 1914/1953 co-relation queries the response was YES. [2021-12-14 16:49:06,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5513 conditions, 3508 events. 232/3508 cut-off events. For 1914/1953 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 28024 event pairs, 81 based on Foata normal form. 8/3291 useless extension candidates. Maximal degree in co-relation 5475. Up to 199 conditions per place. [2021-12-14 16:49:06,761 INFO L132 encePairwiseOnDemand]: 222/230 looper letters, 61 selfloop transitions, 18 changer transitions 6/292 dead transitions. [2021-12-14 16:49:06,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 292 transitions, 1267 flow [2021-12-14 16:49:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:49:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:49:06,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1257 transitions. [2021-12-14 16:49:06,763 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9108695652173913 [2021-12-14 16:49:06,763 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1257 transitions. [2021-12-14 16:49:06,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1257 transitions. [2021-12-14 16:49:06,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:06,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1257 transitions. [2021-12-14 16:49:06,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.5) internal successors, (1257), 6 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:06,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 230.0) internal successors, (1610), 7 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:06,766 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 230.0) internal successors, (1610), 7 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:06,766 INFO L186 Difference]: Start difference. First operand has 270 places, 257 transitions, 909 flow. Second operand 6 states and 1257 transitions. [2021-12-14 16:49:06,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 292 transitions, 1267 flow [2021-12-14 16:49:06,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 292 transitions, 1265 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-12-14 16:49:06,778 INFO L242 Difference]: Finished difference. Result has 277 places, 265 transitions, 1024 flow [2021-12-14 16:49:06,778 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1024, PETRI_PLACES=277, PETRI_TRANSITIONS=265} [2021-12-14 16:49:06,779 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 67 predicate places. [2021-12-14 16:49:06,779 INFO L470 AbstractCegarLoop]: Abstraction has has 277 places, 265 transitions, 1024 flow [2021-12-14 16:49:06,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 203.6) internal successors, (1018), 5 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:06,779 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:06,780 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] [2021-12-14 16:49:06,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-14 16:49:06,780 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:06,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:06,780 INFO L85 PathProgramCache]: Analyzing trace with hash -417482268, now seen corresponding path program 1 times [2021-12-14 16:49:06,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:06,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461936795] [2021-12-14 16:49:06,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:06,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:06,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:06,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:06,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461936795] [2021-12-14 16:49:06,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461936795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:06,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:06,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 16:49:06,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424694084] [2021-12-14 16:49:06,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:06,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 16:49:06,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:06,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 16:49:06,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 16:49:06,825 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 230 [2021-12-14 16:49:06,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 265 transitions, 1024 flow. Second operand has 5 states, 5 states have (on average 203.6) internal successors, (1018), 5 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:06,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:06,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 230 [2021-12-14 16:49:06,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:07,214 INFO L129 PetriNetUnfolder]: 219/3384 cut-off events. [2021-12-14 16:49:07,215 INFO L130 PetriNetUnfolder]: For 2113/2153 co-relation queries the response was YES. [2021-12-14 16:49:07,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5407 conditions, 3384 events. 219/3384 cut-off events. For 2113/2153 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 26470 event pairs, 84 based on Foata normal form. 6/3171 useless extension candidates. Maximal degree in co-relation 5366. Up to 185 conditions per place. [2021-12-14 16:49:07,237 INFO L132 encePairwiseOnDemand]: 222/230 looper letters, 69 selfloop transitions, 26 changer transitions 3/305 dead transitions. [2021-12-14 16:49:07,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 305 transitions, 1449 flow [2021-12-14 16:49:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:49:07,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:49:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2021-12-14 16:49:07,239 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9094202898550725 [2021-12-14 16:49:07,239 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2021-12-14 16:49:07,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2021-12-14 16:49:07,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:07,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2021-12-14 16:49:07,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:07,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 230.0) internal successors, (1610), 7 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:07,242 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 230.0) internal successors, (1610), 7 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:07,242 INFO L186 Difference]: Start difference. First operand has 277 places, 265 transitions, 1024 flow. Second operand 6 states and 1255 transitions. [2021-12-14 16:49:07,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 305 transitions, 1449 flow [2021-12-14 16:49:07,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 305 transitions, 1432 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-12-14 16:49:07,254 INFO L242 Difference]: Finished difference. Result has 284 places, 273 transitions, 1176 flow [2021-12-14 16:49:07,255 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=1012, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1176, PETRI_PLACES=284, PETRI_TRANSITIONS=273} [2021-12-14 16:49:07,255 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 74 predicate places. [2021-12-14 16:49:07,255 INFO L470 AbstractCegarLoop]: Abstraction has has 284 places, 273 transitions, 1176 flow [2021-12-14 16:49:07,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 203.6) internal successors, (1018), 5 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:07,256 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:07,256 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] [2021-12-14 16:49:07,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-14 16:49:07,256 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:07,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:07,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2007793182, now seen corresponding path program 2 times [2021-12-14 16:49:07,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:07,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260664004] [2021-12-14 16:49:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:07,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:07,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:07,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260664004] [2021-12-14 16:49:07,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260664004] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:49:07,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921672112] [2021-12-14 16:49:07,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 16:49:07,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:07,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:49:07,297 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) [2021-12-14 16:49:07,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 16:49:07,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 16:49:07,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:49:07,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 16:49:07,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:49:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:07,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:49:07,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:07,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921672112] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:49:07,708 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:49:07,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2021-12-14 16:49:07,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051284566] [2021-12-14 16:49:07,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:49:07,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 16:49:07,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:07,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 16:49:07,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-14 16:49:07,711 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 230 [2021-12-14 16:49:07,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 273 transitions, 1176 flow. Second operand has 9 states, 9 states have (on average 203.22222222222223) internal successors, (1829), 9 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:07,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:07,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 230 [2021-12-14 16:49:07,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:08,247 INFO L129 PetriNetUnfolder]: 242/3882 cut-off events. [2021-12-14 16:49:08,248 INFO L130 PetriNetUnfolder]: For 2697/2728 co-relation queries the response was YES. [2021-12-14 16:49:08,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6298 conditions, 3882 events. 242/3882 cut-off events. For 2697/2728 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 32472 event pairs, 51 based on Foata normal form. 8/3644 useless extension candidates. Maximal degree in co-relation 6254. Up to 92 conditions per place. [2021-12-14 16:49:08,282 INFO L132 encePairwiseOnDemand]: 222/230 looper letters, 65 selfloop transitions, 71 changer transitions 4/347 dead transitions. [2021-12-14 16:49:08,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 347 transitions, 1939 flow [2021-12-14 16:49:08,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 16:49:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-14 16:49:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2887 transitions. [2021-12-14 16:49:08,285 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.896583850931677 [2021-12-14 16:49:08,285 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2887 transitions. [2021-12-14 16:49:08,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2887 transitions. [2021-12-14 16:49:08,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:08,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2887 transitions. [2021-12-14 16:49:08,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 206.21428571428572) internal successors, (2887), 14 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:08,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 230.0) internal successors, (3450), 15 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:08,292 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 230.0) internal successors, (3450), 15 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:08,292 INFO L186 Difference]: Start difference. First operand has 284 places, 273 transitions, 1176 flow. Second operand 14 states and 2887 transitions. [2021-12-14 16:49:08,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 347 transitions, 1939 flow [2021-12-14 16:49:08,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 347 transitions, 1909 flow, removed 15 selfloop flow, removed 0 redundant places. [2021-12-14 16:49:08,309 INFO L242 Difference]: Finished difference. Result has 304 places, 311 transitions, 1712 flow [2021-12-14 16:49:08,309 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=1158, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1712, PETRI_PLACES=304, PETRI_TRANSITIONS=311} [2021-12-14 16:49:08,309 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 94 predicate places. [2021-12-14 16:49:08,310 INFO L470 AbstractCegarLoop]: Abstraction has has 304 places, 311 transitions, 1712 flow [2021-12-14 16:49:08,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 203.22222222222223) internal successors, (1829), 9 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:08,310 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:08,310 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] [2021-12-14 16:49:08,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-14 16:49:08,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-14 16:49:08,523 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:08,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:08,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1210834426, now seen corresponding path program 3 times [2021-12-14 16:49:08,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:08,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823134404] [2021-12-14 16:49:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:08,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:08,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:08,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823134404] [2021-12-14 16:49:08,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823134404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:49:08,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:49:08,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 16:49:08,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158241617] [2021-12-14 16:49:08,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:49:08,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 16:49:08,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:08,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 16:49:08,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-14 16:49:08,567 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 230 [2021-12-14 16:49:08,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 311 transitions, 1712 flow. Second operand has 5 states, 5 states have (on average 203.6) internal successors, (1018), 5 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:08,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:08,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 230 [2021-12-14 16:49:08,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:08,990 INFO L129 PetriNetUnfolder]: 220/3486 cut-off events. [2021-12-14 16:49:08,991 INFO L130 PetriNetUnfolder]: For 3145/3165 co-relation queries the response was YES. [2021-12-14 16:49:09,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5963 conditions, 3486 events. 220/3486 cut-off events. For 3145/3165 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 28166 event pairs, 80 based on Foata normal form. 5/3265 useless extension candidates. Maximal degree in co-relation 5911. Up to 202 conditions per place. [2021-12-14 16:49:09,013 INFO L132 encePairwiseOnDemand]: 222/230 looper letters, 85 selfloop transitions, 29 changer transitions 1/322 dead transitions. [2021-12-14 16:49:09,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 322 transitions, 1983 flow [2021-12-14 16:49:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 16:49:09,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-14 16:49:09,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2021-12-14 16:49:09,015 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9095652173913044 [2021-12-14 16:49:09,015 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2021-12-14 16:49:09,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2021-12-14 16:49:09,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:09,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2021-12-14 16:49:09,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:09,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:09,018 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:09,018 INFO L186 Difference]: Start difference. First operand has 304 places, 311 transitions, 1712 flow. Second operand 5 states and 1046 transitions. [2021-12-14 16:49:09,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 322 transitions, 1983 flow [2021-12-14 16:49:09,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 322 transitions, 1846 flow, removed 33 selfloop flow, removed 4 redundant places. [2021-12-14 16:49:09,034 INFO L242 Difference]: Finished difference. Result has 305 places, 309 transitions, 1622 flow [2021-12-14 16:49:09,035 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=1538, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1622, PETRI_PLACES=305, PETRI_TRANSITIONS=309} [2021-12-14 16:49:09,035 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 95 predicate places. [2021-12-14 16:49:09,035 INFO L470 AbstractCegarLoop]: Abstraction has has 305 places, 309 transitions, 1622 flow [2021-12-14 16:49:09,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 203.6) internal successors, (1018), 5 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:09,035 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:09,036 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] [2021-12-14 16:49:09,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-14 16:49:09,036 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:09,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:09,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1391662808, now seen corresponding path program 4 times [2021-12-14 16:49:09,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:09,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865237815] [2021-12-14 16:49:09,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:09,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:09,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:09,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865237815] [2021-12-14 16:49:09,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865237815] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:49:09,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654874142] [2021-12-14 16:49:09,079 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 16:49:09,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:09,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:49:09,081 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) [2021-12-14 16:49:09,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 16:49:09,143 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 16:49:09,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:49:09,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 16:49:09,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:49:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:09,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:49:09,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:09,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654874142] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:49:09,617 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:49:09,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2021-12-14 16:49:09,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972013111] [2021-12-14 16:49:09,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:49:09,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 16:49:09,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:09,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 16:49:09,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-14 16:49:09,619 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 230 [2021-12-14 16:49:09,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 309 transitions, 1622 flow. Second operand has 11 states, 11 states have (on average 203.36363636363637) internal successors, (2237), 11 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:09,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:09,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 230 [2021-12-14 16:49:09,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:10,100 INFO L129 PetriNetUnfolder]: 223/3871 cut-off events. [2021-12-14 16:49:10,100 INFO L130 PetriNetUnfolder]: For 2999/3019 co-relation queries the response was YES. [2021-12-14 16:49:10,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6409 conditions, 3871 events. 223/3871 cut-off events. For 2999/3019 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32142 event pairs, 71 based on Foata normal form. 5/3633 useless extension candidates. Maximal degree in co-relation 6358. Up to 154 conditions per place. [2021-12-14 16:49:10,124 INFO L132 encePairwiseOnDemand]: 222/230 looper letters, 76 selfloop transitions, 57 changer transitions 1/341 dead transitions. [2021-12-14 16:49:10,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 341 transitions, 2090 flow [2021-12-14 16:49:10,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 16:49:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-14 16:49:10,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1865 transitions. [2021-12-14 16:49:10,127 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9009661835748792 [2021-12-14 16:49:10,127 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1865 transitions. [2021-12-14 16:49:10,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1865 transitions. [2021-12-14 16:49:10,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:10,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1865 transitions. [2021-12-14 16:49:10,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 207.22222222222223) internal successors, (1865), 9 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:10,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 230.0) internal successors, (2300), 10 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:10,130 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 230.0) internal successors, (2300), 10 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:10,131 INFO L186 Difference]: Start difference. First operand has 305 places, 309 transitions, 1622 flow. Second operand 9 states and 1865 transitions. [2021-12-14 16:49:10,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 341 transitions, 2090 flow [2021-12-14 16:49:10,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 341 transitions, 2012 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-12-14 16:49:10,147 INFO L242 Difference]: Finished difference. Result has 312 places, 321 transitions, 1853 flow [2021-12-14 16:49:10,148 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=1552, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1853, PETRI_PLACES=312, PETRI_TRANSITIONS=321} [2021-12-14 16:49:10,148 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 102 predicate places. [2021-12-14 16:49:10,148 INFO L470 AbstractCegarLoop]: Abstraction has has 312 places, 321 transitions, 1853 flow [2021-12-14 16:49:10,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 203.36363636363637) internal successors, (2237), 11 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:10,149 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:10,149 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] [2021-12-14 16:49:10,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 16:49:10,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:10,363 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:10,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:10,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1061911468, now seen corresponding path program 4 times [2021-12-14 16:49:10,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:10,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39118560] [2021-12-14 16:49:10,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:10,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:10,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:10,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39118560] [2021-12-14 16:49:10,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39118560] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:49:10,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91169220] [2021-12-14 16:49:10,406 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 16:49:10,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:10,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:49:10,407 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) [2021-12-14 16:49:10,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 16:49:10,468 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 16:49:10,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:49:10,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 16:49:10,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:49:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:10,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:49:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:10,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91169220] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:49:10,885 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:49:10,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2021-12-14 16:49:10,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698105327] [2021-12-14 16:49:10,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:49:10,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 16:49:10,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:10,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 16:49:10,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-12-14 16:49:10,887 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 230 [2021-12-14 16:49:10,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 321 transitions, 1853 flow. Second operand has 11 states, 11 states have (on average 203.45454545454547) internal successors, (2238), 11 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:10,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:10,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 230 [2021-12-14 16:49:10,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:11,535 INFO L129 PetriNetUnfolder]: 291/4931 cut-off events. [2021-12-14 16:49:11,536 INFO L130 PetriNetUnfolder]: For 4071/4108 co-relation queries the response was YES. [2021-12-14 16:49:11,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8165 conditions, 4931 events. 291/4931 cut-off events. For 4071/4108 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 45251 event pairs, 69 based on Foata normal form. 7/4620 useless extension candidates. Maximal degree in co-relation 8111. Up to 134 conditions per place. [2021-12-14 16:49:11,568 INFO L132 encePairwiseOnDemand]: 222/230 looper letters, 85 selfloop transitions, 81 changer transitions 0/373 dead transitions. [2021-12-14 16:49:11,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 373 transitions, 2490 flow [2021-12-14 16:49:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 16:49:11,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-14 16:49:11,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2688 transitions. [2021-12-14 16:49:11,571 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8989966555183947 [2021-12-14 16:49:11,571 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2688 transitions. [2021-12-14 16:49:11,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2688 transitions. [2021-12-14 16:49:11,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:11,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2688 transitions. [2021-12-14 16:49:11,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 206.76923076923077) internal successors, (2688), 13 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:11,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:11,576 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:11,576 INFO L186 Difference]: Start difference. First operand has 312 places, 321 transitions, 1853 flow. Second operand 13 states and 2688 transitions. [2021-12-14 16:49:11,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 373 transitions, 2490 flow [2021-12-14 16:49:11,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 373 transitions, 2302 flow, removed 39 selfloop flow, removed 8 redundant places. [2021-12-14 16:49:11,598 INFO L242 Difference]: Finished difference. Result has 320 places, 341 transitions, 2109 flow [2021-12-14 16:49:11,598 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=1689, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2109, PETRI_PLACES=320, PETRI_TRANSITIONS=341} [2021-12-14 16:49:11,598 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 110 predicate places. [2021-12-14 16:49:11,598 INFO L470 AbstractCegarLoop]: Abstraction has has 320 places, 341 transitions, 2109 flow [2021-12-14 16:49:11,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 203.45454545454547) internal successors, (2238), 11 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:11,599 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:11,599 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] [2021-12-14 16:49:11,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-14 16:49:11,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:11,815 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:11,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:11,816 INFO L85 PathProgramCache]: Analyzing trace with hash -753398586, now seen corresponding path program 5 times [2021-12-14 16:49:11,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:11,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084179470] [2021-12-14 16:49:11,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:11,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:11,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:11,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:11,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084179470] [2021-12-14 16:49:11,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084179470] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:49:11,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152028236] [2021-12-14 16:49:11,862 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-14 16:49:11,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:11,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:49:11,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:49:11,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 16:49:11,930 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 16:49:11,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:49:11,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 16:49:11,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:49:12,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:12,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:49:12,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:12,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152028236] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:49:12,415 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:49:12,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2021-12-14 16:49:12,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616874711] [2021-12-14 16:49:12,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:49:12,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 16:49:12,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:12,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 16:49:12,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-12-14 16:49:12,418 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 230 [2021-12-14 16:49:12,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 341 transitions, 2109 flow. Second operand has 11 states, 11 states have (on average 203.36363636363637) internal successors, (2237), 11 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:12,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:12,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 230 [2021-12-14 16:49:12,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:13,151 INFO L129 PetriNetUnfolder]: 272/5111 cut-off events. [2021-12-14 16:49:13,151 INFO L130 PetriNetUnfolder]: For 4323/4365 co-relation queries the response was YES. [2021-12-14 16:49:13,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8384 conditions, 5111 events. 272/5111 cut-off events. For 4323/4365 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 47965 event pairs, 99 based on Foata normal form. 8/4782 useless extension candidates. Maximal degree in co-relation 8333. Up to 157 conditions per place. [2021-12-14 16:49:13,193 INFO L132 encePairwiseOnDemand]: 222/230 looper letters, 81 selfloop transitions, 86 changer transitions 5/371 dead transitions. [2021-12-14 16:49:13,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 371 transitions, 2592 flow [2021-12-14 16:49:13,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 16:49:13,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-14 16:49:13,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2684 transitions. [2021-12-14 16:49:13,197 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8976588628762542 [2021-12-14 16:49:13,197 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2684 transitions. [2021-12-14 16:49:13,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2684 transitions. [2021-12-14 16:49:13,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:13,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2684 transitions. [2021-12-14 16:49:13,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 206.46153846153845) internal successors, (2684), 13 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:13,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:13,203 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 230.0) internal successors, (3220), 14 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:13,203 INFO L186 Difference]: Start difference. First operand has 320 places, 341 transitions, 2109 flow. Second operand 13 states and 2684 transitions. [2021-12-14 16:49:13,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 371 transitions, 2592 flow [2021-12-14 16:49:13,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 371 transitions, 2558 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-12-14 16:49:13,231 INFO L242 Difference]: Finished difference. Result has 326 places, 339 transitions, 2251 flow [2021-12-14 16:49:13,231 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=1949, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2251, PETRI_PLACES=326, PETRI_TRANSITIONS=339} [2021-12-14 16:49:13,232 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 116 predicate places. [2021-12-14 16:49:13,232 INFO L470 AbstractCegarLoop]: Abstraction has has 326 places, 339 transitions, 2251 flow [2021-12-14 16:49:13,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 203.36363636363637) internal successors, (2237), 11 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:13,233 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:13,233 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] [2021-12-14 16:49:13,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-14 16:49:13,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-14 16:49:13,450 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:13,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:13,450 INFO L85 PathProgramCache]: Analyzing trace with hash -977035420, now seen corresponding path program 1 times [2021-12-14 16:49:13,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:13,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880727475] [2021-12-14 16:49:13,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:13,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:13,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:13,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880727475] [2021-12-14 16:49:13,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880727475] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:49:13,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191320759] [2021-12-14 16:49:13,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:13,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:13,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:49:13,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:49:13,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 16:49:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:13,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 16:49:13,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:49:13,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:13,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:49:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:14,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191320759] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:49:14,065 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:49:14,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2021-12-14 16:49:14,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210130331] [2021-12-14 16:49:14,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:49:14,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 16:49:14,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:14,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 16:49:14,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-14 16:49:14,068 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 230 [2021-12-14 16:49:14,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 339 transitions, 2251 flow. Second operand has 11 states, 11 states have (on average 203.54545454545453) internal successors, (2239), 11 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:14,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:14,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 230 [2021-12-14 16:49:14,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:14,706 INFO L129 PetriNetUnfolder]: 259/4776 cut-off events. [2021-12-14 16:49:14,707 INFO L130 PetriNetUnfolder]: For 4567/4602 co-relation queries the response was YES. [2021-12-14 16:49:14,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7845 conditions, 4776 events. 259/4776 cut-off events. For 4567/4602 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 43724 event pairs, 73 based on Foata normal form. 6/4466 useless extension candidates. Maximal degree in co-relation 7794. Up to 204 conditions per place. [2021-12-14 16:49:14,737 INFO L132 encePairwiseOnDemand]: 222/230 looper letters, 92 selfloop transitions, 65 changer transitions 1/357 dead transitions. [2021-12-14 16:49:14,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 357 transitions, 2642 flow [2021-12-14 16:49:14,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 16:49:14,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-14 16:49:14,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1865 transitions. [2021-12-14 16:49:14,739 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9009661835748792 [2021-12-14 16:49:14,740 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1865 transitions. [2021-12-14 16:49:14,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1865 transitions. [2021-12-14 16:49:14,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:14,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1865 transitions. [2021-12-14 16:49:14,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 207.22222222222223) internal successors, (1865), 9 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:14,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 230.0) internal successors, (2300), 10 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:14,743 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 230.0) internal successors, (2300), 10 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:14,743 INFO L186 Difference]: Start difference. First operand has 326 places, 339 transitions, 2251 flow. Second operand 9 states and 1865 transitions. [2021-12-14 16:49:14,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 357 transitions, 2642 flow [2021-12-14 16:49:14,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 357 transitions, 2497 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-12-14 16:49:14,762 INFO L242 Difference]: Finished difference. Result has 322 places, 339 transitions, 2255 flow [2021-12-14 16:49:14,762 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=2082, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2255, PETRI_PLACES=322, PETRI_TRANSITIONS=339} [2021-12-14 16:49:14,763 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 112 predicate places. [2021-12-14 16:49:14,763 INFO L470 AbstractCegarLoop]: Abstraction has has 322 places, 339 transitions, 2255 flow [2021-12-14 16:49:14,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 203.54545454545453) internal successors, (2239), 11 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:14,763 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:14,764 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:14,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-14 16:49:14,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-14 16:49:14,978 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:14,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1494837026, now seen corresponding path program 1 times [2021-12-14 16:49:14,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:14,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791179632] [2021-12-14 16:49:14,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:14,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:15,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:15,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791179632] [2021-12-14 16:49:15,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791179632] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:49:15,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001663024] [2021-12-14 16:49:15,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:15,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:15,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:49:15,157 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:49:15,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 16:49:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:15,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-14 16:49:15,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:49:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:15,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:49:16,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:16,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001663024] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:49:16,530 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:49:16,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 39 [2021-12-14 16:49:16,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623125676] [2021-12-14 16:49:16,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:49:16,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-14 16:49:16,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:16,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-14 16:49:16,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1367, Unknown=0, NotChecked=0, Total=1482 [2021-12-14 16:49:16,535 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 230 [2021-12-14 16:49:16,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 339 transitions, 2255 flow. Second operand has 39 states, 39 states have (on average 165.53846153846155) internal successors, (6456), 39 states have internal predecessors, (6456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:16,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:16,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 230 [2021-12-14 16:49:16,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:26,099 INFO L129 PetriNetUnfolder]: 6459/38061 cut-off events. [2021-12-14 16:49:26,100 INFO L130 PetriNetUnfolder]: For 25612/25752 co-relation queries the response was YES. [2021-12-14 16:49:26,445 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67521 conditions, 38061 events. 6459/38061 cut-off events. For 25612/25752 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 516780 event pairs, 960 based on Foata normal form. 36/36036 useless extension candidates. Maximal degree in co-relation 67476. Up to 5697 conditions per place. [2021-12-14 16:49:26,513 INFO L132 encePairwiseOnDemand]: 199/230 looper letters, 580 selfloop transitions, 228 changer transitions 9/1098 dead transitions. [2021-12-14 16:49:26,513 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 1098 transitions, 5836 flow [2021-12-14 16:49:26,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-12-14 16:49:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2021-12-14 16:49:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 21840 transitions. [2021-12-14 16:49:26,525 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7360970677451971 [2021-12-14 16:49:26,526 INFO L72 ComplementDD]: Start complementDD. Operand 129 states and 21840 transitions. [2021-12-14 16:49:26,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 129 states and 21840 transitions. [2021-12-14 16:49:26,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:26,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 129 states and 21840 transitions. [2021-12-14 16:49:26,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 130 states, 129 states have (on average 169.30232558139534) internal successors, (21840), 129 states have internal predecessors, (21840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:26,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 130 states, 130 states have (on average 230.0) internal successors, (29900), 130 states have internal predecessors, (29900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:26,575 INFO L81 ComplementDD]: Finished complementDD. Result has 130 states, 130 states have (on average 230.0) internal successors, (29900), 130 states have internal predecessors, (29900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:26,575 INFO L186 Difference]: Start difference. First operand has 322 places, 339 transitions, 2255 flow. Second operand 129 states and 21840 transitions. [2021-12-14 16:49:26,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 1098 transitions, 5836 flow [2021-12-14 16:49:26,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 1098 transitions, 5640 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-12-14 16:49:26,858 INFO L242 Difference]: Finished difference. Result has 525 places, 578 transitions, 3862 flow [2021-12-14 16:49:26,859 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=2071, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=129, PETRI_FLOW=3862, PETRI_PLACES=525, PETRI_TRANSITIONS=578} [2021-12-14 16:49:26,859 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 315 predicate places. [2021-12-14 16:49:26,859 INFO L470 AbstractCegarLoop]: Abstraction has has 525 places, 578 transitions, 3862 flow [2021-12-14 16:49:26,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 165.53846153846155) internal successors, (6456), 39 states have internal predecessors, (6456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:26,860 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:26,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:26,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-14 16:49:27,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:27,063 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:27,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:27,063 INFO L85 PathProgramCache]: Analyzing trace with hash -375783344, now seen corresponding path program 1 times [2021-12-14 16:49:27,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:27,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52581284] [2021-12-14 16:49:27,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:27,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:27,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:27,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52581284] [2021-12-14 16:49:27,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52581284] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:49:27,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145141173] [2021-12-14 16:49:27,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:27,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:27,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:49:27,253 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:49:27,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-14 16:49:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:27,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-14 16:49:27,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:49:27,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:27,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:49:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:28,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145141173] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:49:28,720 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:49:28,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 40 [2021-12-14 16:49:28,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473344624] [2021-12-14 16:49:28,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:49:28,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-12-14 16:49:28,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:28,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-14 16:49:28,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1440, Unknown=0, NotChecked=0, Total=1560 [2021-12-14 16:49:28,725 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 230 [2021-12-14 16:49:28,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 578 transitions, 3862 flow. Second operand has 40 states, 40 states have (on average 165.55) internal successors, (6622), 40 states have internal predecessors, (6622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:28,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:28,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 230 [2021-12-14 16:49:28,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:49:42,885 INFO L129 PetriNetUnfolder]: 8719/51253 cut-off events. [2021-12-14 16:49:42,885 INFO L130 PetriNetUnfolder]: For 304230/305177 co-relation queries the response was YES. [2021-12-14 16:49:44,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145236 conditions, 51253 events. 8719/51253 cut-off events. For 304230/305177 co-relation queries the response was YES. Maximal size of possible extension queue 1057. Compared 732770 event pairs, 1733 based on Foata normal form. 285/48574 useless extension candidates. Maximal degree in co-relation 145111. Up to 9176 conditions per place. [2021-12-14 16:49:44,285 INFO L132 encePairwiseOnDemand]: 201/230 looper letters, 607 selfloop transitions, 290 changer transitions 8/1186 dead transitions. [2021-12-14 16:49:44,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1186 transitions, 10485 flow [2021-12-14 16:49:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-12-14 16:49:44,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2021-12-14 16:49:44,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 11843 transitions. [2021-12-14 16:49:44,292 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7462507876496535 [2021-12-14 16:49:44,292 INFO L72 ComplementDD]: Start complementDD. Operand 69 states and 11843 transitions. [2021-12-14 16:49:44,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 11843 transitions. [2021-12-14 16:49:44,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:49:44,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 69 states and 11843 transitions. [2021-12-14 16:49:44,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 70 states, 69 states have (on average 171.63768115942028) internal successors, (11843), 69 states have internal predecessors, (11843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:44,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 70 states, 70 states have (on average 230.0) internal successors, (16100), 70 states have internal predecessors, (16100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:44,319 INFO L81 ComplementDD]: Finished complementDD. Result has 70 states, 70 states have (on average 230.0) internal successors, (16100), 70 states have internal predecessors, (16100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:44,319 INFO L186 Difference]: Start difference. First operand has 525 places, 578 transitions, 3862 flow. Second operand 69 states and 11843 transitions. [2021-12-14 16:49:44,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1186 transitions, 10485 flow [2021-12-14 16:49:46,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 584 places, 1186 transitions, 10048 flow, removed 139 selfloop flow, removed 9 redundant places. [2021-12-14 16:49:46,362 INFO L242 Difference]: Finished difference. Result has 629 places, 782 transitions, 6608 flow [2021-12-14 16:49:46,363 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=3615, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=69, PETRI_FLOW=6608, PETRI_PLACES=629, PETRI_TRANSITIONS=782} [2021-12-14 16:49:46,364 INFO L334 CegarLoopForPetriNet]: 210 programPoint places, 419 predicate places. [2021-12-14 16:49:46,364 INFO L470 AbstractCegarLoop]: Abstraction has has 629 places, 782 transitions, 6608 flow [2021-12-14 16:49:46,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 165.55) internal successors, (6622), 40 states have internal predecessors, (6622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:46,365 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:49:46,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:49:46,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-14 16:49:46,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-14 16:49:46,579 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:49:46,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:49:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1734420654, now seen corresponding path program 2 times [2021-12-14 16:49:46,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:49:46,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526692434] [2021-12-14 16:49:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:49:46,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:49:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:49:46,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:46,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:49:46,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526692434] [2021-12-14 16:49:46,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526692434] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:49:46,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764721877] [2021-12-14 16:49:46,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 16:49:46,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:49:46,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:49:46,821 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:49:46,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-14 16:49:46,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 16:49:46,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:49:46,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-14 16:49:46,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:49:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:47,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:49:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:49:48,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764721877] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:49:48,114 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:49:48,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 41 [2021-12-14 16:49:48,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588506009] [2021-12-14 16:49:48,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:49:48,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-14 16:49:48,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:49:48,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-14 16:49:48,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1516, Unknown=0, NotChecked=0, Total=1640 [2021-12-14 16:49:48,118 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 230 [2021-12-14 16:49:48,120 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 782 transitions, 6608 flow. Second operand has 41 states, 41 states have (on average 165.5121951219512) internal successors, (6786), 41 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:49:48,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:49:48,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 230 [2021-12-14 16:49:48,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand