./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.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/chl-chromosome-opt-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 16:46:43,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 16:46:43,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 16:46:44,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 16:46:44,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 16:46:44,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 16:46:44,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 16:46:44,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 16:46:44,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 16:46:44,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 16:46:44,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 16:46:44,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 16:46:44,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 16:46:44,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 16:46:44,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 16:46:44,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 16:46:44,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 16:46:44,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 16:46:44,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 16:46:44,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 16:46:44,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 16:46:44,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 16:46:44,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 16:46:44,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 16:46:44,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 16:46:44,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 16:46:44,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 16:46:44,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 16:46:44,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 16:46:44,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 16:46:44,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 16:46:44,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 16:46:44,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 16:46:44,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 16:46:44,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 16:46:44,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 16:46:44,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 16:46:44,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 16:46:44,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 16:46:44,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 16:46:44,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 16:46:44,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 16:46:44,090 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 16:46:44,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 16:46:44,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 16:46:44,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 16:46:44,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 16:46:44,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 16:46:44,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 16:46:44,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 16:46:44,097 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 16:46:44,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 16:46:44,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 16:46:44,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 16:46:44,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 16:46:44,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 16:46:44,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 16:46:44,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 16:46:44,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 16:46:44,099 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 16:46:44,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 16:46:44,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 16:46:44,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 16:46:44,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 16:46:44,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 16:46:44,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 16:46:44,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:46:44,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 16:46:44,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 16:46:44,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 16:46:44,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 16:46:44,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 16:46:44,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 16:46:44,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 16:46:44,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 16:46:44,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 16:46:44,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a [2021-12-14 16:46:44,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 16:46:44,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 16:46:44,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 16:46:44,357 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 16:46:44,358 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 16:46:44,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2021-12-14 16:46:44,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ebd09016/90d467912b0a4588b0537f683b07a30c/FLAG4367ea90b [2021-12-14 16:46:44,814 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 16:46:44,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2021-12-14 16:46:44,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ebd09016/90d467912b0a4588b0537f683b07a30c/FLAG4367ea90b [2021-12-14 16:46:44,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ebd09016/90d467912b0a4588b0537f683b07a30c [2021-12-14 16:46:44,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 16:46:44,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 16:46:44,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 16:46:44,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 16:46:44,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 16:46:44,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:46:44" (1/1) ... [2021-12-14 16:46:44,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71533f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:44, skipping insertion in model container [2021-12-14 16:46:44,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:46:44" (1/1) ... [2021-12-14 16:46:44,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 16:46:44,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 16:46:45,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2021-12-14 16:46:45,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:46:45,058 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 16:46:45,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2021-12-14 16:46:45,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:46:45,098 INFO L208 MainTranslator]: Completed translation [2021-12-14 16:46:45,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45 WrapperNode [2021-12-14 16:46:45,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 16:46:45,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 16:46:45,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 16:46:45,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 16:46:45,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (1/1) ... [2021-12-14 16:46:45,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (1/1) ... [2021-12-14 16:46:45,151 INFO L137 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 182 [2021-12-14 16:46:45,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 16:46:45,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 16:46:45,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 16:46:45,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 16:46:45,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (1/1) ... [2021-12-14 16:46:45,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (1/1) ... [2021-12-14 16:46:45,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (1/1) ... [2021-12-14 16:46:45,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (1/1) ... [2021-12-14 16:46:45,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (1/1) ... [2021-12-14 16:46:45,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (1/1) ... [2021-12-14 16:46:45,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (1/1) ... [2021-12-14 16:46:45,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 16:46:45,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 16:46:45,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 16:46:45,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 16:46:45,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (1/1) ... [2021-12-14 16:46:45,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:46:45,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:46:45,232 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 16:46:45,255 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 16:46:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 16:46:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-14 16:46:45,264 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-14 16:46:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-14 16:46:45,264 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-14 16:46:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 16:46:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 16:46:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 16:46:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 16:46:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 16:46:45,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 16:46:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 16:46:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 16:46:45,267 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 16:46:45,388 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 16:46:45,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 16:46:45,547 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 16:46:45,554 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 16:46:45,554 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-14 16:46:45,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:46:45 BoogieIcfgContainer [2021-12-14 16:46:45,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 16:46:45,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 16:46:45,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 16:46:45,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 16:46:45,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:46:44" (1/3) ... [2021-12-14 16:46:45,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a8095e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:46:45, skipping insertion in model container [2021-12-14 16:46:45,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:46:45" (2/3) ... [2021-12-14 16:46:45,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a8095e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:46:45, skipping insertion in model container [2021-12-14 16:46:45,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:46:45" (3/3) ... [2021-12-14 16:46:45,562 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2021-12-14 16:46:45,565 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-14 16:46:45,565 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 16:46:45,565 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 16:46:45,565 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-14 16:46:45,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,612 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,612 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,612 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,614 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,616 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,616 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,616 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,616 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,616 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,616 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,631 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,631 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,631 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,631 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,631 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,671 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,671 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,672 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,672 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,672 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,672 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,672 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,672 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,673 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,673 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,673 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,673 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,673 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,673 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,675 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,676 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,687 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,687 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,687 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,688 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,688 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:46:45,690 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-14 16:46:45,732 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 16:46:45,737 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 16:46:45,737 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-14 16:46:45,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 208 places, 222 transitions, 460 flow [2021-12-14 16:46:45,811 INFO L129 PetriNetUnfolder]: 21/220 cut-off events. [2021-12-14 16:46:45,811 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-14 16:46:45,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 21/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 263 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 155. Up to 3 conditions per place. [2021-12-14 16:46:45,816 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 222 transitions, 460 flow [2021-12-14 16:46:45,821 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 211 transitions, 434 flow [2021-12-14 16:46:45,850 INFO L129 PetriNetUnfolder]: 21/210 cut-off events. [2021-12-14 16:46:45,850 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-14 16:46:45,850 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:45,851 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] [2021-12-14 16:46:45,851 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:45,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:45,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1416583287, now seen corresponding path program 1 times [2021-12-14 16:46:45,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:45,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309350462] [2021-12-14 16:46:45,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:45,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:46,059 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 16:46:46,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:46,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309350462] [2021-12-14 16:46:46,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309350462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:46,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:46,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 16:46:46,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803475233] [2021-12-14 16:46:46,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:46,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 16:46:46,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:46,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 16:46:46,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 16:46:46,101 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 222 [2021-12-14 16:46:46,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 211 transitions, 434 flow. Second operand has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 16:46:46,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:46,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 222 [2021-12-14 16:46:46,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:46,177 INFO L129 PetriNetUnfolder]: 10/200 cut-off events. [2021-12-14 16:46:46,177 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2021-12-14 16:46:46,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 200 events. 10/200 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 13/196 useless extension candidates. Maximal degree in co-relation 148. Up to 5 conditions per place. [2021-12-14 16:46:46,182 INFO L132 encePairwiseOnDemand]: 211/222 looper letters, 4 selfloop transitions, 0 changer transitions 5/200 dead transitions. [2021-12-14 16:46:46,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 200 transitions, 420 flow [2021-12-14 16:46:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 16:46:46,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-14 16:46:46,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 427 transitions. [2021-12-14 16:46:46,201 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9617117117117117 [2021-12-14 16:46:46,202 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 427 transitions. [2021-12-14 16:46:46,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 427 transitions. [2021-12-14 16:46:46,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:46,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 427 transitions. [2021-12-14 16:46:46,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 213.5) internal successors, (427), 2 states have internal predecessors, (427), 0 states have call successors, (0), 0 states 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 16:46:46,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states 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 16:46:46,218 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states 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 16:46:46,219 INFO L186 Difference]: Start difference. First operand has 197 places, 211 transitions, 434 flow. Second operand 2 states and 427 transitions. [2021-12-14 16:46:46,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 200 transitions, 420 flow [2021-12-14 16:46:46,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 200 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-14 16:46:46,228 INFO L242 Difference]: Finished difference. Result has 194 places, 195 transitions, 394 flow [2021-12-14 16:46:46,229 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=394, PETRI_PLACES=194, PETRI_TRANSITIONS=195} [2021-12-14 16:46:46,233 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2021-12-14 16:46:46,233 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 195 transitions, 394 flow [2021-12-14 16:46:46,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 16:46:46,234 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:46,235 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] [2021-12-14 16:46:46,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 16:46:46,235 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:46,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:46,236 INFO L85 PathProgramCache]: Analyzing trace with hash -422266269, now seen corresponding path program 1 times [2021-12-14 16:46:46,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:46,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601184608] [2021-12-14 16:46:46,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:46,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:46,387 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 16:46:46,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:46,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601184608] [2021-12-14 16:46:46,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601184608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:46,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:46,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 16:46:46,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636818404] [2021-12-14 16:46:46,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:46,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 16:46:46,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:46,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 16:46:46,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 16:46:46,395 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 222 [2021-12-14 16:46:46,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 195 transitions, 394 flow. Second operand has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states 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 16:46:46,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:46,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 222 [2021-12-14 16:46:46,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:46,515 INFO L129 PetriNetUnfolder]: 10/207 cut-off events. [2021-12-14 16:46:46,515 INFO L130 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2021-12-14 16:46:46,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 207 events. 10/207 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 244 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 245. Up to 25 conditions per place. [2021-12-14 16:46:46,518 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 28 selfloop transitions, 8 changer transitions 0/203 dead transitions. [2021-12-14 16:46:46,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 203 transitions, 482 flow [2021-12-14 16:46:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 16:46:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-14 16:46:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 948 transitions. [2021-12-14 16:46:46,520 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8540540540540541 [2021-12-14 16:46:46,520 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 948 transitions. [2021-12-14 16:46:46,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 948 transitions. [2021-12-14 16:46:46,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:46,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 948 transitions. [2021-12-14 16:46:46,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 189.6) internal successors, (948), 5 states have internal predecessors, (948), 0 states have call successors, (0), 0 states 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 16:46:46,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states 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 16:46:46,526 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states 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 16:46:46,526 INFO L186 Difference]: Start difference. First operand has 194 places, 195 transitions, 394 flow. Second operand 5 states and 948 transitions. [2021-12-14 16:46:46,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 203 transitions, 482 flow [2021-12-14 16:46:46,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 203 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-14 16:46:46,534 INFO L242 Difference]: Finished difference. Result has 194 places, 197 transitions, 426 flow [2021-12-14 16:46:46,534 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=194, PETRI_TRANSITIONS=197} [2021-12-14 16:46:46,535 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2021-12-14 16:46:46,535 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 197 transitions, 426 flow [2021-12-14 16:46:46,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states 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 16:46:46,536 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:46,538 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 16:46:46,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 16:46:46,538 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:46,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:46,539 INFO L85 PathProgramCache]: Analyzing trace with hash -419875030, now seen corresponding path program 1 times [2021-12-14 16:46:46,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:46,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120426464] [2021-12-14 16:46:46,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:46,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 16:46:46,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:46,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120426464] [2021-12-14 16:46:46,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120426464] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:46:46,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850606768] [2021-12-14 16:46:46,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:46,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:46:46,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:46:46,665 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 16:46:46,668 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 16:46:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:46,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 16:46:46,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:46:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 16:46:47,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:46:47,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 16:46:47,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850606768] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:46:47,350 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:46:47,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2021-12-14 16:46:47,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961241094] [2021-12-14 16:46:47,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:46:47,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 16:46:47,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:47,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 16:46:47,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-12-14 16:46:47,356 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 222 [2021-12-14 16:46:47,358 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 197 transitions, 426 flow. Second operand has 15 states, 15 states have (on average 183.33333333333334) internal successors, (2750), 15 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states 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 16:46:47,358 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:47,358 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 222 [2021-12-14 16:46:47,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:47,532 INFO L129 PetriNetUnfolder]: 10/225 cut-off events. [2021-12-14 16:46:47,533 INFO L130 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2021-12-14 16:46:47,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 225 events. 10/225 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 226 event pairs, 0 based on Foata normal form. 4/219 useless extension candidates. Maximal degree in co-relation 295. Up to 19 conditions per place. [2021-12-14 16:46:47,534 INFO L132 encePairwiseOnDemand]: 206/222 looper letters, 30 selfloop transitions, 22 changer transitions 0/217 dead transitions. [2021-12-14 16:46:47,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 217 transitions, 574 flow [2021-12-14 16:46:47,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 16:46:47,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-14 16:46:47,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2036 transitions. [2021-12-14 16:46:47,538 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8337428337428338 [2021-12-14 16:46:47,538 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2036 transitions. [2021-12-14 16:46:47,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2036 transitions. [2021-12-14 16:46:47,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:47,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2036 transitions. [2021-12-14 16:46:47,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 185.0909090909091) internal successors, (2036), 11 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states 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 16:46:47,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 222.0) internal successors, (2664), 12 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states 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 16:46:47,545 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 222.0) internal successors, (2664), 12 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states 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 16:46:47,546 INFO L186 Difference]: Start difference. First operand has 194 places, 197 transitions, 426 flow. Second operand 11 states and 2036 transitions. [2021-12-14 16:46:47,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 217 transitions, 574 flow [2021-12-14 16:46:47,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 217 transitions, 562 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-14 16:46:47,552 INFO L242 Difference]: Finished difference. Result has 204 places, 209 transitions, 525 flow [2021-12-14 16:46:47,552 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=525, PETRI_PLACES=204, PETRI_TRANSITIONS=209} [2021-12-14 16:46:47,554 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 7 predicate places. [2021-12-14 16:46:47,554 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 209 transitions, 525 flow [2021-12-14 16:46:47,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 183.33333333333334) internal successors, (2750), 15 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states 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 16:46:47,556 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:47,556 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:47,587 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 16:46:47,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:46:47,780 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:47,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:47,780 INFO L85 PathProgramCache]: Analyzing trace with hash -970353476, now seen corresponding path program 2 times [2021-12-14 16:46:47,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:47,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590739081] [2021-12-14 16:46:47,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:47,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:47,907 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 16:46:47,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:47,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590739081] [2021-12-14 16:46:47,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590739081] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:46:47,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879069589] [2021-12-14 16:46:47,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 16:46:47,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:46:47,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:46:47,913 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 16:46:47,914 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 16:46:48,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-14 16:46:48,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:46:48,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 16:46:48,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:46:48,311 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-14 16:46:48,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 16:46:48,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879069589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:48,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 16:46:48,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-12-14 16:46:48,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192847225] [2021-12-14 16:46:48,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:48,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:48,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:48,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:48,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-12-14 16:46:48,314 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:48,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 209 transitions, 525 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 16:46:48,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:48,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:48,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:48,503 INFO L129 PetriNetUnfolder]: 111/654 cut-off events. [2021-12-14 16:46:48,503 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-12-14 16:46:48,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 654 events. 111/654 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3161 event pairs, 7 based on Foata normal form. 0/587 useless extension candidates. Maximal degree in co-relation 883. Up to 70 conditions per place. [2021-12-14 16:46:48,507 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 50 selfloop transitions, 10 changer transitions 1/250 dead transitions. [2021-12-14 16:46:48,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 250 transitions, 734 flow [2021-12-14 16:46:48,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 16:46:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-14 16:46:48,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1583 transitions. [2021-12-14 16:46:48,510 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8913288288288288 [2021-12-14 16:46:48,510 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1583 transitions. [2021-12-14 16:46:48,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1583 transitions. [2021-12-14 16:46:48,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:48,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1583 transitions. [2021-12-14 16:46:48,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 197.875) internal successors, (1583), 8 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states 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 16:46:48,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states 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 16:46:48,516 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states 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 16:46:48,516 INFO L186 Difference]: Start difference. First operand has 204 places, 209 transitions, 525 flow. Second operand 8 states and 1583 transitions. [2021-12-14 16:46:48,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 250 transitions, 734 flow [2021-12-14 16:46:48,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 250 transitions, 717 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-12-14 16:46:48,523 INFO L242 Difference]: Finished difference. Result has 213 places, 216 transitions, 571 flow [2021-12-14 16:46:48,524 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=571, PETRI_PLACES=213, PETRI_TRANSITIONS=216} [2021-12-14 16:46:48,527 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 16 predicate places. [2021-12-14 16:46:48,527 INFO L470 AbstractCegarLoop]: Abstraction has has 213 places, 216 transitions, 571 flow [2021-12-14 16:46:48,528 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 16:46:48,528 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:48,528 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:48,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 16:46:48,734 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,SelfDestructingSolverStorable3 [2021-12-14 16:46:48,735 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:48,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:48,735 INFO L85 PathProgramCache]: Analyzing trace with hash -475898132, now seen corresponding path program 3 times [2021-12-14 16:46:48,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:48,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103668036] [2021-12-14 16:46:48,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:48,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:48,842 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 16:46:48,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:48,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103668036] [2021-12-14 16:46:48,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103668036] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:46:48,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821522129] [2021-12-14 16:46:48,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 16:46:48,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:46:48,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:46:48,851 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 16:46:48,883 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 16:46:48,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-12-14 16:46:48,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:46:48,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 16:46:48,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:46:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-14 16:46:49,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 16:46:49,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821522129] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:49,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 16:46:49,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-12-14 16:46:49,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858871431] [2021-12-14 16:46:49,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:49,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:49,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:49,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-12-14 16:46:49,215 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:49,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 216 transitions, 571 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 16:46:49,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:49,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:49,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:49,632 INFO L129 PetriNetUnfolder]: 428/2270 cut-off events. [2021-12-14 16:46:49,632 INFO L130 PetriNetUnfolder]: For 201/212 co-relation queries the response was YES. [2021-12-14 16:46:49,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3130 conditions, 2270 events. 428/2270 cut-off events. For 201/212 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 18503 event pairs, 83 based on Foata normal form. 1/2026 useless extension candidates. Maximal degree in co-relation 3118. Up to 244 conditions per place. [2021-12-14 16:46:49,644 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 59 selfloop transitions, 12 changer transitions 2/269 dead transitions. [2021-12-14 16:46:49,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 269 transitions, 834 flow [2021-12-14 16:46:49,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 16:46:49,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-14 16:46:49,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1595 transitions. [2021-12-14 16:46:49,647 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8980855855855856 [2021-12-14 16:46:49,647 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1595 transitions. [2021-12-14 16:46:49,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1595 transitions. [2021-12-14 16:46:49,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:49,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1595 transitions. [2021-12-14 16:46:49,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 199.375) internal successors, (1595), 8 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states 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 16:46:49,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states 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 16:46:49,654 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states 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 16:46:49,654 INFO L186 Difference]: Start difference. First operand has 213 places, 216 transitions, 571 flow. Second operand 8 states and 1595 transitions. [2021-12-14 16:46:49,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 269 transitions, 834 flow [2021-12-14 16:46:49,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 269 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-14 16:46:49,661 INFO L242 Difference]: Finished difference. Result has 223 places, 228 transitions, 651 flow [2021-12-14 16:46:49,661 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=651, PETRI_PLACES=223, PETRI_TRANSITIONS=228} [2021-12-14 16:46:49,662 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 26 predicate places. [2021-12-14 16:46:49,663 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 228 transitions, 651 flow [2021-12-14 16:46:49,663 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 16:46:49,663 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:49,664 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:49,681 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 16:46:49,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:46:49,882 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:49,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:49,882 INFO L85 PathProgramCache]: Analyzing trace with hash 6486200, now seen corresponding path program 4 times [2021-12-14 16:46:49,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:49,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29131918] [2021-12-14 16:46:49,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:49,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 16:46:49,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:49,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29131918] [2021-12-14 16:46:49,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29131918] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:46:49,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105580767] [2021-12-14 16:46:49,988 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 16:46:49,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:46:49,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:46:49,990 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 16:46:49,991 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 16:46:50,088 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 16:46:50,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 16:46:50,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-14 16:46:50,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:46:50,452 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 16:46:50,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 16:46:50,769 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 16:46:50,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105580767] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 16:46:50,769 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 16:46:50,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2021-12-14 16:46:50,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888145606] [2021-12-14 16:46:50,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 16:46:50,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-14 16:46:50,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:50,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-14 16:46:50,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2021-12-14 16:46:50,779 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 222 [2021-12-14 16:46:50,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 228 transitions, 651 flow. Second operand has 22 states, 22 states have (on average 183.1818181818182) internal successors, (4030), 22 states have internal predecessors, (4030), 0 states have call successors, (0), 0 states 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 16:46:50,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:50,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 222 [2021-12-14 16:46:50,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:51,321 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([615] thread2EXIT-->L90-2: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar2_4) (= v_thread2Thread1of1ForFork1_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem24#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) (= 0 v_thread2Thread1of1ForFork1_thidvar1_4)) InVars {thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_#t~mem24#1=|v_ULTIMATE.start_main_#t~mem24#1_5|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} OutVars{thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_#t~mem24#1=|v_ULTIMATE.start_main_#t~mem24#1_5|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} AuxVars[] AssignedVars[][239], [Black: 222#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0)), Black: 1501#(or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) (= ~isNullA~0 0)) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullA~0 0)))), 3194#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 1089#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 1)), Black: 1095#(and (< |ULTIMATE.start_create_fresh_int_array_~i~2#1| |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 2157#(and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (<= |thread1Thread1of1ForFork0_~i~0#1| 0) (not (= ~isNullB~0 0))), 211#true, Black: 2155#(and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (<= |thread1Thread1of1ForFork0_~i~0#1| 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 1) (not (= ~isNullB~0 0))), Black: 2153#(and (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 0))) (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 0))) (<= |thread1Thread1of1ForFork0_~i~0#1| 0)), Black: 2071#(and (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 0))) (<= |thread1Thread1of1ForFork0_~i~0#1| 0)), 1622#(and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))), 1633#true, 128#L90-2true, Black: 1100#true, Black: 1620#(and (or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0) (= ~isNullA~0 0))) (or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) (= ~isNullA~0 0)) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullA~0 0))))), Black: 1624#(and (<= |thread2Thread1of1ForFork1_~i~1#1| 0) (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))), 1081#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|))]) [2021-12-14 16:46:51,321 INFO L384 tUnfolder$Statistics]: this new event has 221 ancestors and is cut-off event [2021-12-14 16:46:51,321 INFO L387 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2021-12-14 16:46:51,321 INFO L387 tUnfolder$Statistics]: existing Event has 218 ancestors and is cut-off event [2021-12-14 16:46:51,321 INFO L387 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2021-12-14 16:46:51,335 INFO L129 PetriNetUnfolder]: 124/1135 cut-off events. [2021-12-14 16:46:51,335 INFO L130 PetriNetUnfolder]: For 157/171 co-relation queries the response was YES. [2021-12-14 16:46:51,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1135 events. 124/1135 cut-off events. For 157/171 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7053 event pairs, 8 based on Foata normal form. 5/1051 useless extension candidates. Maximal degree in co-relation 1539. Up to 45 conditions per place. [2021-12-14 16:46:51,347 INFO L132 encePairwiseOnDemand]: 206/222 looper letters, 38 selfloop transitions, 34 changer transitions 0/256 dead transitions. [2021-12-14 16:46:51,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 256 transitions, 907 flow [2021-12-14 16:46:51,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-14 16:46:51,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-14 16:46:51,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3136 transitions. [2021-12-14 16:46:51,355 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.830948595654478 [2021-12-14 16:46:51,355 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3136 transitions. [2021-12-14 16:46:51,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3136 transitions. [2021-12-14 16:46:51,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:51,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3136 transitions. [2021-12-14 16:46:51,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 184.47058823529412) internal successors, (3136), 17 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states 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 16:46:51,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 222.0) internal successors, (3996), 18 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states 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 16:46:51,403 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 222.0) internal successors, (3996), 18 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states 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 16:46:51,404 INFO L186 Difference]: Start difference. First operand has 223 places, 228 transitions, 651 flow. Second operand 17 states and 3136 transitions. [2021-12-14 16:46:51,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 256 transitions, 907 flow [2021-12-14 16:46:51,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 256 transitions, 907 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-14 16:46:51,410 INFO L242 Difference]: Finished difference. Result has 242 places, 242 transitions, 826 flow [2021-12-14 16:46:51,410 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=826, PETRI_PLACES=242, PETRI_TRANSITIONS=242} [2021-12-14 16:46:51,411 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 45 predicate places. [2021-12-14 16:46:51,411 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 242 transitions, 826 flow [2021-12-14 16:46:51,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 183.1818181818182) internal successors, (4030), 22 states have internal predecessors, (4030), 0 states have call successors, (0), 0 states 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 16:46:51,413 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:51,413 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:51,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 16:46:51,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:46:51,632 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:51,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:51,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1604527506, now seen corresponding path program 5 times [2021-12-14 16:46:51,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:51,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204019976] [2021-12-14 16:46:51,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:51,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:46:51,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:51,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204019976] [2021-12-14 16:46:51,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204019976] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:51,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:51,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:46:51,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384013308] [2021-12-14 16:46:51,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:51,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:51,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:51,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:51,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:46:51,781 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:51,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 242 transitions, 826 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 16:46:51,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:51,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:51,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:52,242 INFO L129 PetriNetUnfolder]: 485/2716 cut-off events. [2021-12-14 16:46:52,242 INFO L130 PetriNetUnfolder]: For 725/756 co-relation queries the response was YES. [2021-12-14 16:46:52,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4109 conditions, 2716 events. 485/2716 cut-off events. For 725/756 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 22666 event pairs, 91 based on Foata normal form. 25/2495 useless extension candidates. Maximal degree in co-relation 4088. Up to 301 conditions per place. [2021-12-14 16:46:52,263 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 42 selfloop transitions, 13 changer transitions 0/270 dead transitions. [2021-12-14 16:46:52,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 270 transitions, 1050 flow [2021-12-14 16:46:52,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:46:52,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:46:52,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2021-12-14 16:46:52,267 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2021-12-14 16:46:52,267 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2021-12-14 16:46:52,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2021-12-14 16:46:52,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:52,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2021-12-14 16:46:52,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 16:46:52,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:52,274 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:52,274 INFO L186 Difference]: Start difference. First operand has 242 places, 242 transitions, 826 flow. Second operand 6 states and 1188 transitions. [2021-12-14 16:46:52,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 270 transitions, 1050 flow [2021-12-14 16:46:52,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 270 transitions, 1005 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-12-14 16:46:52,286 INFO L242 Difference]: Finished difference. Result has 243 places, 249 transitions, 882 flow [2021-12-14 16:46:52,287 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=882, PETRI_PLACES=243, PETRI_TRANSITIONS=249} [2021-12-14 16:46:52,287 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 46 predicate places. [2021-12-14 16:46:52,288 INFO L470 AbstractCegarLoop]: Abstraction has has 243 places, 249 transitions, 882 flow [2021-12-14 16:46:52,288 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 16:46:52,288 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:52,289 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:52,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 16:46:52,289 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:52,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1613833440, now seen corresponding path program 6 times [2021-12-14 16:46:52,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:52,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706010481] [2021-12-14 16:46:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:52,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:52,400 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:46:52,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:52,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706010481] [2021-12-14 16:46:52,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706010481] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:52,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:52,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:46:52,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605576665] [2021-12-14 16:46:52,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:52,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:52,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:52,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:52,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:46:52,404 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:52,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 249 transitions, 882 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 16:46:52,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:52,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:52,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:52,841 INFO L129 PetriNetUnfolder]: 573/3059 cut-off events. [2021-12-14 16:46:52,841 INFO L130 PetriNetUnfolder]: For 1602/1669 co-relation queries the response was YES. [2021-12-14 16:46:52,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4978 conditions, 3059 events. 573/3059 cut-off events. For 1602/1669 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 27206 event pairs, 86 based on Foata normal form. 37/2809 useless extension candidates. Maximal degree in co-relation 4953. Up to 559 conditions per place. [2021-12-14 16:46:52,856 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 48 selfloop transitions, 17 changer transitions 0/280 dead transitions. [2021-12-14 16:46:52,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 280 transitions, 1162 flow [2021-12-14 16:46:52,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:46:52,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:46:52,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2021-12-14 16:46:52,859 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2021-12-14 16:46:52,859 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2021-12-14 16:46:52,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2021-12-14 16:46:52,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:52,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2021-12-14 16:46:52,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states 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 16:46:52,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:52,873 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:52,873 INFO L186 Difference]: Start difference. First operand has 243 places, 249 transitions, 882 flow. Second operand 6 states and 1191 transitions. [2021-12-14 16:46:52,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 280 transitions, 1162 flow [2021-12-14 16:46:52,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 280 transitions, 1154 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-14 16:46:52,880 INFO L242 Difference]: Finished difference. Result has 251 places, 257 transitions, 1020 flow [2021-12-14 16:46:52,881 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1020, PETRI_PLACES=251, PETRI_TRANSITIONS=257} [2021-12-14 16:46:52,882 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 54 predicate places. [2021-12-14 16:46:52,882 INFO L470 AbstractCegarLoop]: Abstraction has has 251 places, 257 transitions, 1020 flow [2021-12-14 16:46:52,883 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 16:46:52,883 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:52,883 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:52,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 16:46:52,884 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:52,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:52,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1631554698, now seen corresponding path program 7 times [2021-12-14 16:46:52,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:52,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125873219] [2021-12-14 16:46:52,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:52,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:52,981 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:46:52,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:52,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125873219] [2021-12-14 16:46:52,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125873219] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:52,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:52,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:46:52,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625231710] [2021-12-14 16:46:52,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:52,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:52,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:52,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:52,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:46:52,984 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:52,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 257 transitions, 1020 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 16:46:52,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:52,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:52,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:53,481 INFO L129 PetriNetUnfolder]: 641/3468 cut-off events. [2021-12-14 16:46:53,481 INFO L130 PetriNetUnfolder]: For 2822/2915 co-relation queries the response was YES. [2021-12-14 16:46:53,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5864 conditions, 3468 events. 641/3468 cut-off events. For 2822/2915 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 32066 event pairs, 116 based on Foata normal form. 37/3165 useless extension candidates. Maximal degree in co-relation 5835. Up to 598 conditions per place. [2021-12-14 16:46:53,503 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 49 selfloop transitions, 16 changer transitions 0/280 dead transitions. [2021-12-14 16:46:53,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 280 transitions, 1281 flow [2021-12-14 16:46:53,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:46:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:46:53,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1187 transitions. [2021-12-14 16:46:53,507 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8911411411411412 [2021-12-14 16:46:53,507 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1187 transitions. [2021-12-14 16:46:53,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1187 transitions. [2021-12-14 16:46:53,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:53,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1187 transitions. [2021-12-14 16:46:53,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states 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 16:46:53,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:53,511 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:53,511 INFO L186 Difference]: Start difference. First operand has 251 places, 257 transitions, 1020 flow. Second operand 6 states and 1187 transitions. [2021-12-14 16:46:53,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 280 transitions, 1281 flow [2021-12-14 16:46:53,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 280 transitions, 1268 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-12-14 16:46:53,520 INFO L242 Difference]: Finished difference. Result has 259 places, 262 transitions, 1132 flow [2021-12-14 16:46:53,521 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1007, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1132, PETRI_PLACES=259, PETRI_TRANSITIONS=262} [2021-12-14 16:46:53,521 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 62 predicate places. [2021-12-14 16:46:53,521 INFO L470 AbstractCegarLoop]: Abstraction has has 259 places, 262 transitions, 1132 flow [2021-12-14 16:46:53,522 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 16:46:53,522 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:53,522 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:53,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 16:46:53,522 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:53,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:53,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1727344068, now seen corresponding path program 8 times [2021-12-14 16:46:53,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:53,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310821870] [2021-12-14 16:46:53,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:53,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:53,579 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:46:53,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:53,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310821870] [2021-12-14 16:46:53,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310821870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:53,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:53,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:46:53,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475633550] [2021-12-14 16:46:53,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:53,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:53,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:53,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:53,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:46:53,582 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:53,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 262 transitions, 1132 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 16:46:53,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:53,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:53,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:54,227 INFO L129 PetriNetUnfolder]: 823/4769 cut-off events. [2021-12-14 16:46:54,228 INFO L130 PetriNetUnfolder]: For 3094/3206 co-relation queries the response was YES. [2021-12-14 16:46:54,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7777 conditions, 4769 events. 823/4769 cut-off events. For 3094/3206 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 49265 event pairs, 202 based on Foata normal form. 25/4355 useless extension candidates. Maximal degree in co-relation 7744. Up to 900 conditions per place. [2021-12-14 16:46:54,263 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 46 selfloop transitions, 13 changer transitions 0/289 dead transitions. [2021-12-14 16:46:54,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 289 transitions, 1342 flow [2021-12-14 16:46:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:46:54,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:46:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2021-12-14 16:46:54,266 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2021-12-14 16:46:54,266 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2021-12-14 16:46:54,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2021-12-14 16:46:54,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:54,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2021-12-14 16:46:54,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 16:46:54,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:54,271 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:54,271 INFO L186 Difference]: Start difference. First operand has 259 places, 262 transitions, 1132 flow. Second operand 6 states and 1188 transitions. [2021-12-14 16:46:54,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 289 transitions, 1342 flow [2021-12-14 16:46:54,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 289 transitions, 1329 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-12-14 16:46:54,285 INFO L242 Difference]: Finished difference. Result has 268 places, 271 transitions, 1225 flow [2021-12-14 16:46:54,286 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1119, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1225, PETRI_PLACES=268, PETRI_TRANSITIONS=271} [2021-12-14 16:46:54,286 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 71 predicate places. [2021-12-14 16:46:54,286 INFO L470 AbstractCegarLoop]: Abstraction has has 268 places, 271 transitions, 1225 flow [2021-12-14 16:46:54,287 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 16:46:54,287 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:54,287 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:54,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 16:46:54,288 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:54,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:54,288 INFO L85 PathProgramCache]: Analyzing trace with hash 470872504, now seen corresponding path program 9 times [2021-12-14 16:46:54,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:54,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116620540] [2021-12-14 16:46:54,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:54,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:54,379 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:46:54,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:54,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116620540] [2021-12-14 16:46:54,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116620540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:54,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:54,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:46:54,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196509793] [2021-12-14 16:46:54,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:54,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:54,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:54,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:54,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:46:54,382 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:54,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 271 transitions, 1225 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 16:46:54,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:54,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:54,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:55,159 INFO L129 PetriNetUnfolder]: 915/5429 cut-off events. [2021-12-14 16:46:55,160 INFO L130 PetriNetUnfolder]: For 4366/4501 co-relation queries the response was YES. [2021-12-14 16:46:55,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9212 conditions, 5429 events. 915/5429 cut-off events. For 4366/4501 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 57923 event pairs, 201 based on Foata normal form. 30/4964 useless extension candidates. Maximal degree in co-relation 9175. Up to 920 conditions per place. [2021-12-14 16:46:55,196 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 61 selfloop transitions, 19 changer transitions 0/310 dead transitions. [2021-12-14 16:46:55,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 310 transitions, 1551 flow [2021-12-14 16:46:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:46:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:46:55,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1199 transitions. [2021-12-14 16:46:55,200 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9001501501501501 [2021-12-14 16:46:55,200 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1199 transitions. [2021-12-14 16:46:55,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1199 transitions. [2021-12-14 16:46:55,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:55,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1199 transitions. [2021-12-14 16:46:55,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.83333333333334) internal successors, (1199), 6 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states 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 16:46:55,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:55,205 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:55,205 INFO L186 Difference]: Start difference. First operand has 268 places, 271 transitions, 1225 flow. Second operand 6 states and 1199 transitions. [2021-12-14 16:46:55,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 310 transitions, 1551 flow [2021-12-14 16:46:55,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 310 transitions, 1539 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-12-14 16:46:55,222 INFO L242 Difference]: Finished difference. Result has 278 places, 282 transitions, 1381 flow [2021-12-14 16:46:55,222 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1219, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1381, PETRI_PLACES=278, PETRI_TRANSITIONS=282} [2021-12-14 16:46:55,223 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 81 predicate places. [2021-12-14 16:46:55,223 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 282 transitions, 1381 flow [2021-12-14 16:46:55,223 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 16:46:55,223 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:55,224 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:55,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 16:46:55,224 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:55,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:55,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1483281724, now seen corresponding path program 10 times [2021-12-14 16:46:55,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:55,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047370832] [2021-12-14 16:46:55,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:55,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:55,311 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:46:55,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:55,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047370832] [2021-12-14 16:46:55,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047370832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:55,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:55,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:46:55,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248679239] [2021-12-14 16:46:55,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:55,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:55,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:55,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:55,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:46:55,314 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:55,314 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 282 transitions, 1381 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 16:46:55,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:55,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:55,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:56,179 INFO L129 PetriNetUnfolder]: 1055/6075 cut-off events. [2021-12-14 16:46:56,179 INFO L130 PetriNetUnfolder]: For 5730/5862 co-relation queries the response was YES. [2021-12-14 16:46:56,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10677 conditions, 6075 events. 1055/6075 cut-off events. For 5730/5862 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 65627 event pairs, 131 based on Foata normal form. 38/5578 useless extension candidates. Maximal degree in co-relation 10635. Up to 953 conditions per place. [2021-12-14 16:46:56,233 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 66 selfloop transitions, 24 changer transitions 0/320 dead transitions. [2021-12-14 16:46:56,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 320 transitions, 1733 flow [2021-12-14 16:46:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:46:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:46:56,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1201 transitions. [2021-12-14 16:46:56,237 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9016516516516516 [2021-12-14 16:46:56,237 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1201 transitions. [2021-12-14 16:46:56,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1201 transitions. [2021-12-14 16:46:56,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:56,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1201 transitions. [2021-12-14 16:46:56,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:46:56,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:56,242 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:46:56,243 INFO L186 Difference]: Start difference. First operand has 278 places, 282 transitions, 1381 flow. Second operand 6 states and 1201 transitions. [2021-12-14 16:46:56,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 320 transitions, 1733 flow [2021-12-14 16:46:56,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 320 transitions, 1727 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-12-14 16:46:56,274 INFO L242 Difference]: Finished difference. Result has 287 places, 290 transitions, 1544 flow [2021-12-14 16:46:56,275 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1375, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1544, PETRI_PLACES=287, PETRI_TRANSITIONS=290} [2021-12-14 16:46:56,276 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 90 predicate places. [2021-12-14 16:46:56,276 INFO L470 AbstractCegarLoop]: Abstraction has has 287 places, 290 transitions, 1544 flow [2021-12-14 16:46:56,276 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 16:46:56,276 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:56,277 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:56,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 16:46:56,277 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:56,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:56,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1912779596, now seen corresponding path program 1 times [2021-12-14 16:46:56,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:56,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483643143] [2021-12-14 16:46:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:56,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:46:56,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:56,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483643143] [2021-12-14 16:46:56,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483643143] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:56,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:56,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:46:56,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541530979] [2021-12-14 16:46:56,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:56,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:56,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:56,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:56,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:46:56,365 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:56,366 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 290 transitions, 1544 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 16:46:56,366 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:56,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:56,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:57,278 INFO L129 PetriNetUnfolder]: 1035/6044 cut-off events. [2021-12-14 16:46:57,279 INFO L130 PetriNetUnfolder]: For 7310/7481 co-relation queries the response was YES. [2021-12-14 16:46:57,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11275 conditions, 6044 events. 1035/6044 cut-off events. For 7310/7481 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 65700 event pairs, 150 based on Foata normal form. 41/5564 useless extension candidates. Maximal degree in co-relation 11228. Up to 531 conditions per place. [2021-12-14 16:46:57,320 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 83 selfloop transitions, 20 changer transitions 14/347 dead transitions. [2021-12-14 16:46:57,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 347 transitions, 2140 flow [2021-12-14 16:46:57,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 16:46:57,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-14 16:46:57,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1780 transitions. [2021-12-14 16:46:57,324 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8908908908908909 [2021-12-14 16:46:57,324 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1780 transitions. [2021-12-14 16:46:57,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1780 transitions. [2021-12-14 16:46:57,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:57,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1780 transitions. [2021-12-14 16:46:57,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 197.77777777777777) internal successors, (1780), 9 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states 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 16:46:57,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states 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 16:46:57,330 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states 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 16:46:57,330 INFO L186 Difference]: Start difference. First operand has 287 places, 290 transitions, 1544 flow. Second operand 9 states and 1780 transitions. [2021-12-14 16:46:57,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 347 transitions, 2140 flow [2021-12-14 16:46:57,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 347 transitions, 2121 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-12-14 16:46:57,353 INFO L242 Difference]: Finished difference. Result has 299 places, 296 transitions, 1664 flow [2021-12-14 16:46:57,353 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1531, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1664, PETRI_PLACES=299, PETRI_TRANSITIONS=296} [2021-12-14 16:46:57,354 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 102 predicate places. [2021-12-14 16:46:57,354 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 296 transitions, 1664 flow [2021-12-14 16:46:57,354 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 16:46:57,354 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:57,355 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:57,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 16:46:57,355 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:57,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:57,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1645292496, now seen corresponding path program 2 times [2021-12-14 16:46:57,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:57,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590842603] [2021-12-14 16:46:57,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:57,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:46:57,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:57,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590842603] [2021-12-14 16:46:57,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590842603] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:57,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:57,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:46:57,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051931347] [2021-12-14 16:46:57,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:57,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:57,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:57,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:57,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:46:57,428 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:57,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 296 transitions, 1664 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 16:46:57,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:57,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:57,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:58,357 INFO L129 PetriNetUnfolder]: 999/5948 cut-off events. [2021-12-14 16:46:58,357 INFO L130 PetriNetUnfolder]: For 7877/8076 co-relation queries the response was YES. [2021-12-14 16:46:58,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11195 conditions, 5948 events. 999/5948 cut-off events. For 7877/8076 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 64538 event pairs, 100 based on Foata normal form. 66/5512 useless extension candidates. Maximal degree in co-relation 11143. Up to 531 conditions per place. [2021-12-14 16:46:58,401 INFO L132 encePairwiseOnDemand]: 210/222 looper letters, 73 selfloop transitions, 41 changer transitions 4/348 dead transitions. [2021-12-14 16:46:58,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 348 transitions, 2157 flow [2021-12-14 16:46:58,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 16:46:58,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-14 16:46:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1603 transitions. [2021-12-14 16:46:58,404 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9025900900900901 [2021-12-14 16:46:58,404 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1603 transitions. [2021-12-14 16:46:58,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1603 transitions. [2021-12-14 16:46:58,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:58,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1603 transitions. [2021-12-14 16:46:58,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 200.375) internal successors, (1603), 8 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states 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 16:46:58,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states 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 16:46:58,410 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states 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 16:46:58,410 INFO L186 Difference]: Start difference. First operand has 299 places, 296 transitions, 1664 flow. Second operand 8 states and 1603 transitions. [2021-12-14 16:46:58,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 348 transitions, 2157 flow [2021-12-14 16:46:58,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 348 transitions, 2144 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-12-14 16:46:58,444 INFO L242 Difference]: Finished difference. Result has 303 places, 305 transitions, 1880 flow [2021-12-14 16:46:58,445 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1653, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1880, PETRI_PLACES=303, PETRI_TRANSITIONS=305} [2021-12-14 16:46:58,445 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 106 predicate places. [2021-12-14 16:46:58,445 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 305 transitions, 1880 flow [2021-12-14 16:46:58,445 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 16:46:58,446 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:58,446 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:58,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 16:46:58,446 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:58,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:58,446 INFO L85 PathProgramCache]: Analyzing trace with hash 573714294, now seen corresponding path program 3 times [2021-12-14 16:46:58,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:58,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206193688] [2021-12-14 16:46:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:58,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:58,506 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:46:58,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:58,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206193688] [2021-12-14 16:46:58,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206193688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:58,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:58,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:46:58,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976804050] [2021-12-14 16:46:58,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:58,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:58,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:58,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:58,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:46:58,509 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:58,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 305 transitions, 1880 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 16:46:58,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:58,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:58,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:46:59,365 INFO L129 PetriNetUnfolder]: 967/5605 cut-off events. [2021-12-14 16:46:59,365 INFO L130 PetriNetUnfolder]: For 9058/9269 co-relation queries the response was YES. [2021-12-14 16:46:59,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11146 conditions, 5605 events. 967/5605 cut-off events. For 9058/9269 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 59390 event pairs, 141 based on Foata normal form. 66/5192 useless extension candidates. Maximal degree in co-relation 11092. Up to 531 conditions per place. [2021-12-14 16:46:59,426 INFO L132 encePairwiseOnDemand]: 211/222 looper letters, 71 selfloop transitions, 36 changer transitions 8/345 dead transitions. [2021-12-14 16:46:59,427 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 345 transitions, 2270 flow [2021-12-14 16:46:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 16:46:59,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-14 16:46:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1786 transitions. [2021-12-14 16:46:59,429 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8938938938938938 [2021-12-14 16:46:59,430 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1786 transitions. [2021-12-14 16:46:59,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1786 transitions. [2021-12-14 16:46:59,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:46:59,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1786 transitions. [2021-12-14 16:46:59,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 198.44444444444446) internal successors, (1786), 9 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states 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 16:46:59,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states 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 16:46:59,435 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states 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 16:46:59,435 INFO L186 Difference]: Start difference. First operand has 303 places, 305 transitions, 1880 flow. Second operand 9 states and 1786 transitions. [2021-12-14 16:46:59,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 345 transitions, 2270 flow [2021-12-14 16:46:59,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 345 transitions, 2227 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-12-14 16:46:59,476 INFO L242 Difference]: Finished difference. Result has 310 places, 305 transitions, 1936 flow [2021-12-14 16:46:59,477 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1839, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1936, PETRI_PLACES=310, PETRI_TRANSITIONS=305} [2021-12-14 16:46:59,477 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 113 predicate places. [2021-12-14 16:46:59,478 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 305 transitions, 1936 flow [2021-12-14 16:46:59,478 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 16:46:59,478 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:46:59,478 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:46:59,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 16:46:59,479 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:46:59,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:46:59,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1611745994, now seen corresponding path program 1 times [2021-12-14 16:46:59,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:46:59,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916776332] [2021-12-14 16:46:59,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:46:59,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:46:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:46:59,550 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:46:59,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:46:59,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916776332] [2021-12-14 16:46:59,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916776332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:46:59,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:46:59,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:46:59,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556862811] [2021-12-14 16:46:59,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:46:59,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:46:59,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:46:59,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:46:59,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:46:59,553 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:46:59,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 305 transitions, 1936 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 16:46:59,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:46:59,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:46:59,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:00,219 INFO L129 PetriNetUnfolder]: 941/4845 cut-off events. [2021-12-14 16:47:00,220 INFO L130 PetriNetUnfolder]: For 7360/7501 co-relation queries the response was YES. [2021-12-14 16:47:00,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9514 conditions, 4845 events. 941/4845 cut-off events. For 7360/7501 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 49579 event pairs, 126 based on Foata normal form. 52/4434 useless extension candidates. Maximal degree in co-relation 9458. Up to 981 conditions per place. [2021-12-14 16:47:00,265 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 54 selfloop transitions, 15 changer transitions 1/326 dead transitions. [2021-12-14 16:47:00,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 326 transitions, 2174 flow [2021-12-14 16:47:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:47:00,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:47:00,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2021-12-14 16:47:00,267 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2021-12-14 16:47:00,268 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2021-12-14 16:47:00,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2021-12-14 16:47:00,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:00,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2021-12-14 16:47:00,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states 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 16:47:00,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:47:00,271 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:47:00,272 INFO L186 Difference]: Start difference. First operand has 310 places, 305 transitions, 1936 flow. Second operand 6 states and 1188 transitions. [2021-12-14 16:47:00,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 326 transitions, 2174 flow [2021-12-14 16:47:00,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 326 transitions, 2113 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-12-14 16:47:00,301 INFO L242 Difference]: Finished difference. Result has 308 places, 305 transitions, 1913 flow [2021-12-14 16:47:00,301 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1875, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1913, PETRI_PLACES=308, PETRI_TRANSITIONS=305} [2021-12-14 16:47:00,302 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 111 predicate places. [2021-12-14 16:47:00,302 INFO L470 AbstractCegarLoop]: Abstraction has has 308 places, 305 transitions, 1913 flow [2021-12-14 16:47:00,302 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 16:47:00,302 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:00,302 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:00,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 16:47:00,303 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:00,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:00,303 INFO L85 PathProgramCache]: Analyzing trace with hash -575047056, now seen corresponding path program 2 times [2021-12-14 16:47:00,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:00,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064284017] [2021-12-14 16:47:00,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:00,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:00,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:00,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064284017] [2021-12-14 16:47:00,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064284017] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:00,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:00,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:47:00,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089990539] [2021-12-14 16:47:00,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:00,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:47:00,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:00,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:47:00,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:47:00,381 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:47:00,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 305 transitions, 1913 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 16:47:00,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:00,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:47:00,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:01,075 INFO L129 PetriNetUnfolder]: 960/4993 cut-off events. [2021-12-14 16:47:01,076 INFO L130 PetriNetUnfolder]: For 8102/8231 co-relation queries the response was YES. [2021-12-14 16:47:01,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9816 conditions, 4993 events. 960/4993 cut-off events. For 8102/8231 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 51430 event pairs, 149 based on Foata normal form. 38/4547 useless extension candidates. Maximal degree in co-relation 9760. Up to 1040 conditions per place. [2021-12-14 16:47:01,123 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 54 selfloop transitions, 17 changer transitions 1/328 dead transitions. [2021-12-14 16:47:01,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 328 transitions, 2173 flow [2021-12-14 16:47:01,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:47:01,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:47:01,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1190 transitions. [2021-12-14 16:47:01,125 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8933933933933934 [2021-12-14 16:47:01,126 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1190 transitions. [2021-12-14 16:47:01,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1190 transitions. [2021-12-14 16:47:01,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:01,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1190 transitions. [2021-12-14 16:47:01,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states 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 16:47:01,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:47:01,129 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:47:01,130 INFO L186 Difference]: Start difference. First operand has 308 places, 305 transitions, 1913 flow. Second operand 6 states and 1190 transitions. [2021-12-14 16:47:01,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 328 transitions, 2173 flow [2021-12-14 16:47:01,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 328 transitions, 2137 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-12-14 16:47:01,164 INFO L242 Difference]: Finished difference. Result has 310 places, 308 transitions, 1971 flow [2021-12-14 16:47:01,165 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1971, PETRI_PLACES=310, PETRI_TRANSITIONS=308} [2021-12-14 16:47:01,165 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 113 predicate places. [2021-12-14 16:47:01,165 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 308 transitions, 1971 flow [2021-12-14 16:47:01,165 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 16:47:01,166 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:01,166 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:01,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 16:47:01,166 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:01,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:01,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1556995980, now seen corresponding path program 3 times [2021-12-14 16:47:01,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:01,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120588358] [2021-12-14 16:47:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:01,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:01,234 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:01,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:01,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120588358] [2021-12-14 16:47:01,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120588358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:01,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:01,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:47:01,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551232899] [2021-12-14 16:47:01,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:01,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:47:01,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:01,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:47:01,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:47:01,237 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:47:01,238 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 308 transitions, 1971 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 16:47:01,238 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:01,238 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:47:01,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:02,085 INFO L129 PetriNetUnfolder]: 956/4928 cut-off events. [2021-12-14 16:47:02,085 INFO L130 PetriNetUnfolder]: For 8765/8895 co-relation queries the response was YES. [2021-12-14 16:47:02,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9811 conditions, 4928 events. 956/4928 cut-off events. For 8765/8895 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 50662 event pairs, 178 based on Foata normal form. 34/4477 useless extension candidates. Maximal degree in co-relation 9753. Up to 1040 conditions per place. [2021-12-14 16:47:02,159 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 54 selfloop transitions, 10 changer transitions 3/323 dead transitions. [2021-12-14 16:47:02,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 323 transitions, 2191 flow [2021-12-14 16:47:02,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:47:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:47:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1180 transitions. [2021-12-14 16:47:02,162 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2021-12-14 16:47:02,162 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1180 transitions. [2021-12-14 16:47:02,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1180 transitions. [2021-12-14 16:47:02,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:02,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1180 transitions. [2021-12-14 16:47:02,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.66666666666666) internal successors, (1180), 6 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 16:47:02,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:47:02,167 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:47:02,167 INFO L186 Difference]: Start difference. First operand has 310 places, 308 transitions, 1971 flow. Second operand 6 states and 1180 transitions. [2021-12-14 16:47:02,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 323 transitions, 2191 flow [2021-12-14 16:47:02,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 323 transitions, 2176 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-12-14 16:47:02,201 INFO L242 Difference]: Finished difference. Result has 314 places, 308 transitions, 1989 flow [2021-12-14 16:47:02,202 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1956, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1989, PETRI_PLACES=314, PETRI_TRANSITIONS=308} [2021-12-14 16:47:02,202 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 117 predicate places. [2021-12-14 16:47:02,202 INFO L470 AbstractCegarLoop]: Abstraction has has 314 places, 308 transitions, 1989 flow [2021-12-14 16:47:02,203 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 16:47:02,203 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:02,203 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:02,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 16:47:02,203 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:02,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:02,204 INFO L85 PathProgramCache]: Analyzing trace with hash 768744644, now seen corresponding path program 4 times [2021-12-14 16:47:02,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:02,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317853201] [2021-12-14 16:47:02,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:02,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:02,259 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:02,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:02,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317853201] [2021-12-14 16:47:02,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317853201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:02,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:02,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:47:02,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60292110] [2021-12-14 16:47:02,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:02,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:47:02,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:02,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:47:02,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:47:02,264 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:47:02,264 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 308 transitions, 1989 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 16:47:02,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:02,265 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:47:02,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:03,043 INFO L129 PetriNetUnfolder]: 945/5032 cut-off events. [2021-12-14 16:47:03,043 INFO L130 PetriNetUnfolder]: For 9361/9489 co-relation queries the response was YES. [2021-12-14 16:47:03,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10040 conditions, 5032 events. 945/5032 cut-off events. For 9361/9489 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 52030 event pairs, 177 based on Foata normal form. 27/4576 useless extension candidates. Maximal degree in co-relation 9980. Up to 649 conditions per place. [2021-12-14 16:47:03,092 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 60 selfloop transitions, 12 changer transitions 3/331 dead transitions. [2021-12-14 16:47:03,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 331 transitions, 2289 flow [2021-12-14 16:47:03,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:47:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:47:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1372 transitions. [2021-12-14 16:47:03,094 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2021-12-14 16:47:03,094 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1372 transitions. [2021-12-14 16:47:03,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1372 transitions. [2021-12-14 16:47:03,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:03,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1372 transitions. [2021-12-14 16:47:03,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 196.0) internal successors, (1372), 7 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states 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 16:47:03,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states 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 16:47:03,098 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states 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 16:47:03,098 INFO L186 Difference]: Start difference. First operand has 314 places, 308 transitions, 1989 flow. Second operand 7 states and 1372 transitions. [2021-12-14 16:47:03,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 331 transitions, 2289 flow [2021-12-14 16:47:03,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 331 transitions, 2255 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-12-14 16:47:03,133 INFO L242 Difference]: Finished difference. Result has 316 places, 309 transitions, 2016 flow [2021-12-14 16:47:03,134 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1959, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2016, PETRI_PLACES=316, PETRI_TRANSITIONS=309} [2021-12-14 16:47:03,134 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 119 predicate places. [2021-12-14 16:47:03,134 INFO L470 AbstractCegarLoop]: Abstraction has has 316 places, 309 transitions, 2016 flow [2021-12-14 16:47:03,135 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 16:47:03,135 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:03,135 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:03,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 16:47:03,136 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:03,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:03,136 INFO L85 PathProgramCache]: Analyzing trace with hash 771741116, now seen corresponding path program 5 times [2021-12-14 16:47:03,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:03,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910288917] [2021-12-14 16:47:03,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:03,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:03,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:03,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910288917] [2021-12-14 16:47:03,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910288917] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:03,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:03,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:47:03,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097878255] [2021-12-14 16:47:03,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:03,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:47:03,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:03,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:47:03,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:47:03,205 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:47:03,206 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 309 transitions, 2016 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 16:47:03,206 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:03,206 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:47:03,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:04,148 INFO L129 PetriNetUnfolder]: 931/4928 cut-off events. [2021-12-14 16:47:04,148 INFO L130 PetriNetUnfolder]: For 9466/9602 co-relation queries the response was YES. [2021-12-14 16:47:04,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9971 conditions, 4928 events. 931/4928 cut-off events. For 9466/9602 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 50713 event pairs, 126 based on Foata normal form. 45/4514 useless extension candidates. Maximal degree in co-relation 9910. Up to 584 conditions per place. [2021-12-14 16:47:04,207 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 51 selfloop transitions, 24 changer transitions 2/333 dead transitions. [2021-12-14 16:47:04,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 333 transitions, 2302 flow [2021-12-14 16:47:04,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:47:04,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:47:04,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2021-12-14 16:47:04,209 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2021-12-14 16:47:04,209 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2021-12-14 16:47:04,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2021-12-14 16:47:04,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:04,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2021-12-14 16:47:04,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states 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 16:47:04,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:47:04,213 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:47:04,213 INFO L186 Difference]: Start difference. First operand has 316 places, 309 transitions, 2016 flow. Second operand 6 states and 1191 transitions. [2021-12-14 16:47:04,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 333 transitions, 2302 flow [2021-12-14 16:47:04,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 333 transitions, 2278 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-12-14 16:47:04,250 INFO L242 Difference]: Finished difference. Result has 318 places, 312 transitions, 2106 flow [2021-12-14 16:47:04,250 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1993, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2106, PETRI_PLACES=318, PETRI_TRANSITIONS=312} [2021-12-14 16:47:04,250 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 121 predicate places. [2021-12-14 16:47:04,251 INFO L470 AbstractCegarLoop]: Abstraction has has 318 places, 312 transitions, 2106 flow [2021-12-14 16:47:04,251 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 16:47:04,251 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:04,251 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:04,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-14 16:47:04,252 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:04,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:04,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1200521356, now seen corresponding path program 6 times [2021-12-14 16:47:04,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:04,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892927375] [2021-12-14 16:47:04,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:04,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:04,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:04,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892927375] [2021-12-14 16:47:04,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892927375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:04,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:04,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:47:04,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480488979] [2021-12-14 16:47:04,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:04,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:47:04,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:04,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:47:04,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:47:04,315 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:47:04,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 312 transitions, 2106 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 16:47:04,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:04,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:47:04,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:05,120 INFO L129 PetriNetUnfolder]: 922/4792 cut-off events. [2021-12-14 16:47:05,120 INFO L130 PetriNetUnfolder]: For 10022/10159 co-relation queries the response was YES. [2021-12-14 16:47:05,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9889 conditions, 4792 events. 922/4792 cut-off events. For 10022/10159 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 48878 event pairs, 132 based on Foata normal form. 39/4372 useless extension candidates. Maximal degree in co-relation 9827. Up to 603 conditions per place. [2021-12-14 16:47:05,172 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 49 selfloop transitions, 20 changer transitions 4/329 dead transitions. [2021-12-14 16:47:05,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 329 transitions, 2348 flow [2021-12-14 16:47:05,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:47:05,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:47:05,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1183 transitions. [2021-12-14 16:47:05,174 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8881381381381381 [2021-12-14 16:47:05,174 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1183 transitions. [2021-12-14 16:47:05,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1183 transitions. [2021-12-14 16:47:05,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:05,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1183 transitions. [2021-12-14 16:47:05,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.16666666666666) internal successors, (1183), 6 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states 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 16:47:05,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:47:05,178 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 16:47:05,178 INFO L186 Difference]: Start difference. First operand has 318 places, 312 transitions, 2106 flow. Second operand 6 states and 1183 transitions. [2021-12-14 16:47:05,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 329 transitions, 2348 flow [2021-12-14 16:47:05,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 329 transitions, 2324 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-12-14 16:47:05,215 INFO L242 Difference]: Finished difference. Result has 321 places, 311 transitions, 2106 flow [2021-12-14 16:47:05,216 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2082, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2106, PETRI_PLACES=321, PETRI_TRANSITIONS=311} [2021-12-14 16:47:05,216 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 124 predicate places. [2021-12-14 16:47:05,216 INFO L470 AbstractCegarLoop]: Abstraction has has 321 places, 311 transitions, 2106 flow [2021-12-14 16:47:05,216 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 16:47:05,217 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:05,217 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:05,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-14 16:47:05,217 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:05,217 INFO L85 PathProgramCache]: Analyzing trace with hash 285921796, now seen corresponding path program 4 times [2021-12-14 16:47:05,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:05,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642825161] [2021-12-14 16:47:05,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:05,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:05,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:05,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642825161] [2021-12-14 16:47:05,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642825161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:05,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:05,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:47:05,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758106239] [2021-12-14 16:47:05,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:05,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:47:05,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:05,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:47:05,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:47:05,298 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:47:05,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 311 transitions, 2106 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 16:47:05,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:05,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:47:05,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:06,137 INFO L129 PetriNetUnfolder]: 929/5316 cut-off events. [2021-12-14 16:47:06,137 INFO L130 PetriNetUnfolder]: For 11705/11919 co-relation queries the response was YES. [2021-12-14 16:47:06,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11043 conditions, 5316 events. 929/5316 cut-off events. For 11705/11919 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 55295 event pairs, 173 based on Foata normal form. 56/4920 useless extension candidates. Maximal degree in co-relation 10980. Up to 830 conditions per place. [2021-12-14 16:47:06,185 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 88 selfloop transitions, 24 changer transitions 7/355 dead transitions. [2021-12-14 16:47:06,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 355 transitions, 2550 flow [2021-12-14 16:47:06,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 16:47:06,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-14 16:47:06,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1591 transitions. [2021-12-14 16:47:06,187 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8958333333333334 [2021-12-14 16:47:06,187 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1591 transitions. [2021-12-14 16:47:06,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1591 transitions. [2021-12-14 16:47:06,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:06,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1591 transitions. [2021-12-14 16:47:06,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 198.875) internal successors, (1591), 8 states have internal predecessors, (1591), 0 states have call successors, (0), 0 states 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 16:47:06,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states 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 16:47:06,191 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states 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 16:47:06,191 INFO L186 Difference]: Start difference. First operand has 321 places, 311 transitions, 2106 flow. Second operand 8 states and 1591 transitions. [2021-12-14 16:47:06,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 355 transitions, 2550 flow [2021-12-14 16:47:06,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 355 transitions, 2479 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-12-14 16:47:06,232 INFO L242 Difference]: Finished difference. Result has 319 places, 312 transitions, 2099 flow [2021-12-14 16:47:06,232 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2035, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2099, PETRI_PLACES=319, PETRI_TRANSITIONS=312} [2021-12-14 16:47:06,233 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 122 predicate places. [2021-12-14 16:47:06,233 INFO L470 AbstractCegarLoop]: Abstraction has has 319 places, 312 transitions, 2099 flow [2021-12-14 16:47:06,233 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 16:47:06,233 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:06,234 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:06,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-14 16:47:06,234 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:06,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:06,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1076829448, now seen corresponding path program 5 times [2021-12-14 16:47:06,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:06,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661763539] [2021-12-14 16:47:06,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:06,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:06,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:06,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661763539] [2021-12-14 16:47:06,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661763539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:06,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:06,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:47:06,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950967846] [2021-12-14 16:47:06,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:06,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:47:06,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:06,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:47:06,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:47:06,306 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:47:06,306 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 312 transitions, 2099 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 16:47:06,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:06,306 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:47:06,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:07,099 INFO L129 PetriNetUnfolder]: 912/5120 cut-off events. [2021-12-14 16:47:07,100 INFO L130 PetriNetUnfolder]: For 10251/10441 co-relation queries the response was YES. [2021-12-14 16:47:07,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10636 conditions, 5120 events. 912/5120 cut-off events. For 10251/10441 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 52676 event pairs, 163 based on Foata normal form. 59/4744 useless extension candidates. Maximal degree in co-relation 10575. Up to 830 conditions per place. [2021-12-14 16:47:07,156 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 85 selfloop transitions, 30 changer transitions 4/355 dead transitions. [2021-12-14 16:47:07,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 355 transitions, 2502 flow [2021-12-14 16:47:07,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:47:07,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:47:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1409 transitions. [2021-12-14 16:47:07,158 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9066924066924067 [2021-12-14 16:47:07,158 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1409 transitions. [2021-12-14 16:47:07,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1409 transitions. [2021-12-14 16:47:07,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:07,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1409 transitions. [2021-12-14 16:47:07,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 201.28571428571428) internal successors, (1409), 7 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states 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 16:47:07,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states 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 16:47:07,161 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states 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 16:47:07,161 INFO L186 Difference]: Start difference. First operand has 319 places, 312 transitions, 2099 flow. Second operand 7 states and 1409 transitions. [2021-12-14 16:47:07,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 355 transitions, 2502 flow [2021-12-14 16:47:07,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 355 transitions, 2453 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-12-14 16:47:07,206 INFO L242 Difference]: Finished difference. Result has 321 places, 313 transitions, 2147 flow [2021-12-14 16:47:07,207 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2053, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2147, PETRI_PLACES=321, PETRI_TRANSITIONS=313} [2021-12-14 16:47:07,207 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 124 predicate places. [2021-12-14 16:47:07,208 INFO L470 AbstractCegarLoop]: Abstraction has has 321 places, 313 transitions, 2147 flow [2021-12-14 16:47:07,208 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 16:47:07,208 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:07,208 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:07,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-14 16:47:07,209 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:07,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:07,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2109355126, now seen corresponding path program 6 times [2021-12-14 16:47:07,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:07,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017438745] [2021-12-14 16:47:07,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:07,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:07,291 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:07,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:07,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017438745] [2021-12-14 16:47:07,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017438745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:07,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:07,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:47:07,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470839348] [2021-12-14 16:47:07,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:07,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:47:07,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:07,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:47:07,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:47:07,294 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-14 16:47:07,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 313 transitions, 2147 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 16:47:07,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:07,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-14 16:47:07,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:08,051 INFO L129 PetriNetUnfolder]: 895/4936 cut-off events. [2021-12-14 16:47:08,052 INFO L130 PetriNetUnfolder]: For 10654/10864 co-relation queries the response was YES. [2021-12-14 16:47:08,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10439 conditions, 4936 events. 895/4936 cut-off events. For 10654/10864 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 50288 event pairs, 105 based on Foata normal form. 66/4595 useless extension candidates. Maximal degree in co-relation 10378. Up to 699 conditions per place. [2021-12-14 16:47:08,107 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 82 selfloop transitions, 32 changer transitions 5/355 dead transitions. [2021-12-14 16:47:08,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 355 transitions, 2557 flow [2021-12-14 16:47:08,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:47:08,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:47:08,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1405 transitions. [2021-12-14 16:47:08,108 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9041184041184042 [2021-12-14 16:47:08,108 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1405 transitions. [2021-12-14 16:47:08,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1405 transitions. [2021-12-14 16:47:08,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:08,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1405 transitions. [2021-12-14 16:47:08,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 200.71428571428572) internal successors, (1405), 7 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states 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 16:47:08,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states 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 16:47:08,112 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states 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 16:47:08,112 INFO L186 Difference]: Start difference. First operand has 321 places, 313 transitions, 2147 flow. Second operand 7 states and 1405 transitions. [2021-12-14 16:47:08,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 355 transitions, 2557 flow [2021-12-14 16:47:08,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 355 transitions, 2509 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-12-14 16:47:08,166 INFO L242 Difference]: Finished difference. Result has 323 places, 313 transitions, 2165 flow [2021-12-14 16:47:08,166 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2101, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2165, PETRI_PLACES=323, PETRI_TRANSITIONS=313} [2021-12-14 16:47:08,167 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 126 predicate places. [2021-12-14 16:47:08,167 INFO L470 AbstractCegarLoop]: Abstraction has has 323 places, 313 transitions, 2165 flow [2021-12-14 16:47:08,167 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 16:47:08,167 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:08,168 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:08,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-14 16:47:08,168 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:08,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:08,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1787676200, now seen corresponding path program 1 times [2021-12-14 16:47:08,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:08,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733435157] [2021-12-14 16:47:08,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:08,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:08,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:08,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733435157] [2021-12-14 16:47:08,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733435157] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:08,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:08,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-12-14 16:47:08,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668586102] [2021-12-14 16:47:08,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:08,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-14 16:47:08,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:08,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-14 16:47:08,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-12-14 16:47:08,492 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2021-12-14 16:47:08,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 313 transitions, 2165 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states 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 16:47:08,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:08,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2021-12-14 16:47:08,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:15,704 INFO L129 PetriNetUnfolder]: 14378/38154 cut-off events. [2021-12-14 16:47:15,705 INFO L130 PetriNetUnfolder]: For 76346/76478 co-relation queries the response was YES. [2021-12-14 16:47:16,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82708 conditions, 38154 events. 14378/38154 cut-off events. For 76346/76478 co-relation queries the response was YES. Maximal size of possible extension queue 1299. Compared 462226 event pairs, 4060 based on Foata normal form. 36/34619 useless extension candidates. Maximal degree in co-relation 82647. Up to 6986 conditions per place. [2021-12-14 16:47:16,468 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 279 selfloop transitions, 93 changer transitions 0/574 dead transitions. [2021-12-14 16:47:16,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 574 transitions, 4578 flow [2021-12-14 16:47:16,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-14 16:47:16,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-12-14 16:47:16,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3740 transitions. [2021-12-14 16:47:16,472 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7324716020368194 [2021-12-14 16:47:16,472 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3740 transitions. [2021-12-14 16:47:16,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3740 transitions. [2021-12-14 16:47:16,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:16,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3740 transitions. [2021-12-14 16:47:16,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 162.6086956521739) internal successors, (3740), 23 states have internal predecessors, (3740), 0 states have call successors, (0), 0 states 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 16:47:16,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states 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 16:47:16,482 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states 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 16:47:16,482 INFO L186 Difference]: Start difference. First operand has 323 places, 313 transitions, 2165 flow. Second operand 23 states and 3740 transitions. [2021-12-14 16:47:16,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 574 transitions, 4578 flow [2021-12-14 16:47:16,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 574 transitions, 4467 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-12-14 16:47:16,688 INFO L242 Difference]: Finished difference. Result has 349 places, 371 transitions, 3092 flow [2021-12-14 16:47:16,689 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2073, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3092, PETRI_PLACES=349, PETRI_TRANSITIONS=371} [2021-12-14 16:47:16,689 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 152 predicate places. [2021-12-14 16:47:16,689 INFO L470 AbstractCegarLoop]: Abstraction has has 349 places, 371 transitions, 3092 flow [2021-12-14 16:47:16,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states 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 16:47:16,690 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:16,690 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:16,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-14 16:47:16,690 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:16,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:16,691 INFO L85 PathProgramCache]: Analyzing trace with hash 147011742, now seen corresponding path program 2 times [2021-12-14 16:47:16,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:16,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557682709] [2021-12-14 16:47:16,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:16,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:16,962 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:16,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:16,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557682709] [2021-12-14 16:47:16,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557682709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:16,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:16,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-12-14 16:47:16,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572462476] [2021-12-14 16:47:16,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:16,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-14 16:47:16,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:16,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-14 16:47:16,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-12-14 16:47:16,965 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2021-12-14 16:47:16,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 371 transitions, 3092 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states 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 16:47:16,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:16,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2021-12-14 16:47:16,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:26,943 INFO L129 PetriNetUnfolder]: 18516/49323 cut-off events. [2021-12-14 16:47:26,943 INFO L130 PetriNetUnfolder]: For 140348/140599 co-relation queries the response was YES. [2021-12-14 16:47:27,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127277 conditions, 49323 events. 18516/49323 cut-off events. For 140348/140599 co-relation queries the response was YES. Maximal size of possible extension queue 1632. Compared 623638 event pairs, 4132 based on Foata normal form. 89/46612 useless extension candidates. Maximal degree in co-relation 127206. Up to 7676 conditions per place. [2021-12-14 16:47:27,913 INFO L132 encePairwiseOnDemand]: 193/222 looper letters, 352 selfloop transitions, 106 changer transitions 0/660 dead transitions. [2021-12-14 16:47:27,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 660 transitions, 6284 flow [2021-12-14 16:47:27,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-14 16:47:27,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-12-14 16:47:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 4076 transitions. [2021-12-14 16:47:27,918 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7344144144144145 [2021-12-14 16:47:27,918 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 4076 transitions. [2021-12-14 16:47:27,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 4076 transitions. [2021-12-14 16:47:27,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:27,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 4076 transitions. [2021-12-14 16:47:27,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 163.04) internal successors, (4076), 25 states have internal predecessors, (4076), 0 states have call successors, (0), 0 states 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 16:47:27,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 222.0) internal successors, (5772), 26 states have internal predecessors, (5772), 0 states have call successors, (0), 0 states 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 16:47:27,928 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 222.0) internal successors, (5772), 26 states have internal predecessors, (5772), 0 states have call successors, (0), 0 states 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 16:47:27,928 INFO L186 Difference]: Start difference. First operand has 349 places, 371 transitions, 3092 flow. Second operand 25 states and 4076 transitions. [2021-12-14 16:47:27,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 660 transitions, 6284 flow [2021-12-14 16:47:28,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 660 transitions, 6217 flow, removed 21 selfloop flow, removed 8 redundant places. [2021-12-14 16:47:28,433 INFO L242 Difference]: Finished difference. Result has 380 places, 424 transitions, 4118 flow [2021-12-14 16:47:28,434 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=3049, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=4118, PETRI_PLACES=380, PETRI_TRANSITIONS=424} [2021-12-14 16:47:28,434 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 183 predicate places. [2021-12-14 16:47:28,434 INFO L470 AbstractCegarLoop]: Abstraction has has 380 places, 424 transitions, 4118 flow [2021-12-14 16:47:28,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states 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 16:47:28,436 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:28,436 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:28,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-14 16:47:28,436 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:28,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:28,437 INFO L85 PathProgramCache]: Analyzing trace with hash -263351390, now seen corresponding path program 3 times [2021-12-14 16:47:28,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:28,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591149029] [2021-12-14 16:47:28,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:28,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:28,751 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:28,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:28,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591149029] [2021-12-14 16:47:28,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591149029] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:28,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:28,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-12-14 16:47:28,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16860271] [2021-12-14 16:47:28,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:28,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-14 16:47:28,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:28,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-14 16:47:28,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-12-14 16:47:28,754 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2021-12-14 16:47:28,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 424 transitions, 4118 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states 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 16:47:28,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:28,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2021-12-14 16:47:28,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:47:40,247 INFO L129 PetriNetUnfolder]: 20213/51974 cut-off events. [2021-12-14 16:47:40,247 INFO L130 PetriNetUnfolder]: For 251517/251783 co-relation queries the response was YES. [2021-12-14 16:47:41,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156623 conditions, 51974 events. 20213/51974 cut-off events. For 251517/251783 co-relation queries the response was YES. Maximal size of possible extension queue 1808. Compared 651383 event pairs, 7726 based on Foata normal form. 96/48463 useless extension candidates. Maximal degree in co-relation 156537. Up to 13527 conditions per place. [2021-12-14 16:47:41,235 INFO L132 encePairwiseOnDemand]: 193/222 looper letters, 317 selfloop transitions, 117 changer transitions 0/636 dead transitions. [2021-12-14 16:47:41,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 636 transitions, 6655 flow [2021-12-14 16:47:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-14 16:47:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-12-14 16:47:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3741 transitions. [2021-12-14 16:47:41,247 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7326674500587544 [2021-12-14 16:47:41,247 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3741 transitions. [2021-12-14 16:47:41,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3741 transitions. [2021-12-14 16:47:41,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:47:41,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3741 transitions. [2021-12-14 16:47:41,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 162.65217391304347) internal successors, (3741), 23 states have internal predecessors, (3741), 0 states have call successors, (0), 0 states 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 16:47:41,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states 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 16:47:41,255 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states 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 16:47:41,255 INFO L186 Difference]: Start difference. First operand has 380 places, 424 transitions, 4118 flow. Second operand 23 states and 3741 transitions. [2021-12-14 16:47:41,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 636 transitions, 6655 flow [2021-12-14 16:47:42,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 636 transitions, 6534 flow, removed 48 selfloop flow, removed 8 redundant places. [2021-12-14 16:47:42,164 INFO L242 Difference]: Finished difference. Result has 406 places, 454 transitions, 4857 flow [2021-12-14 16:47:42,165 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=4013, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4857, PETRI_PLACES=406, PETRI_TRANSITIONS=454} [2021-12-14 16:47:42,165 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 209 predicate places. [2021-12-14 16:47:42,165 INFO L470 AbstractCegarLoop]: Abstraction has has 406 places, 454 transitions, 4857 flow [2021-12-14 16:47:42,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states 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 16:47:42,166 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:47:42,166 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:47:42,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-14 16:47:42,166 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-14 16:47:42,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:47:42,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1319845728, now seen corresponding path program 4 times [2021-12-14 16:47:42,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:47:42,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205390138] [2021-12-14 16:47:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:47:42,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:47:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:47:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-14 16:47:42,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:47:42,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205390138] [2021-12-14 16:47:42,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205390138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:47:42,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:47:42,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-12-14 16:47:42,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623736232] [2021-12-14 16:47:42,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:47:42,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-14 16:47:42,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:47:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-14 16:47:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-12-14 16:47:42,545 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2021-12-14 16:47:42,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 454 transitions, 4857 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states 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 16:47:42,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:47:42,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2021-12-14 16:47:42,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand