./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-word-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-word-trans.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 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:02:43,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:02:43,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:02:43,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:02:43,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:02:43,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:02:43,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:02:43,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:02:43,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:02:43,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:02:43,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:02:43,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:02:43,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:02:43,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:02:43,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:02:43,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:02:43,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:02:43,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:02:43,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:02:43,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:02:43,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:02:43,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:02:43,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:02:43,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:02:43,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:02:43,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:02:43,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:02:43,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:02:43,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:02:43,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:02:43,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:02:43,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:02:43,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:02:43,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:02:43,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:02:43,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:02:43,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:02:43,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:02:43,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:02:43,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:02:43,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:02:43,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 03:02:43,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:02:43,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:02:43,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:02:43,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:02:43,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:02:43,296 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:02:43,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:02:43,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:02:43,297 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:02:43,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:02:43,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 03:02:43,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:02:43,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 03:02:43,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:02:43,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:02:43,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:02:43,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:02:43,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 03:02:43,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:02:43,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:02:43,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:02:43,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:02:43,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:02:43,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:02:43,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:02:43,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:02:43,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:02:43,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:02:43,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:02:43,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:02:43,302 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:02:43,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:02:43,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:02:43,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:02:43,303 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 [2021-12-16 03:02:43,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:02:43,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:02:43,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:02:43,586 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:02:43,587 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:02:43,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2021-12-16 03:02:43,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99d2d0448/4460ddc743664a25994810383dcbbdc5/FLAGec69e8311 [2021-12-16 03:02:44,053 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:02:44,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2021-12-16 03:02:44,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99d2d0448/4460ddc743664a25994810383dcbbdc5/FLAGec69e8311 [2021-12-16 03:02:44,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99d2d0448/4460ddc743664a25994810383dcbbdc5 [2021-12-16 03:02:44,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:02:44,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:02:44,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:02:44,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:02:44,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:02:44,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ddfbaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44, skipping insertion in model container [2021-12-16 03:02:44,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:02:44,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:02:44,679 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-word-trans.wvr.c[3292,3305] [2021-12-16 03:02:44,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:02:44,694 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:02:44,722 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-word-trans.wvr.c[3292,3305] [2021-12-16 03:02:44,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:02:44,762 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:02:44,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44 WrapperNode [2021-12-16 03:02:44,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:02:44,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:02:44,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:02:44,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:02:44,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,805 INFO L137 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 172 [2021-12-16 03:02:44,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:02:44,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:02:44,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:02:44,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:02:44,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:02:44,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:02:44,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:02:44,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:02:44,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (1/1) ... [2021-12-16 03:02:44,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:02:44,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:02:44,881 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) [2021-12-16 03:02:44,891 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 [2021-12-16 03:02:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:02:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:02:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:02:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:02:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-16 03:02:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-16 03:02:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-16 03:02:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-16 03:02:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-16 03:02:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-16 03:02:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:02:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:02:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:02:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:02:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:02:44,920 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-16 03:02:45,020 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:02:45,022 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:02:45,410 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:02:45,420 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:02:45,420 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-16 03:02:45,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:02:45 BoogieIcfgContainer [2021-12-16 03:02:45,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:02:45,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:02:45,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:02:45,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:02:45,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:02:44" (1/3) ... [2021-12-16 03:02:45,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512609f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:02:45, skipping insertion in model container [2021-12-16 03:02:45,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:02:44" (2/3) ... [2021-12-16 03:02:45,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512609f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:02:45, skipping insertion in model container [2021-12-16 03:02:45,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:02:45" (3/3) ... [2021-12-16 03:02:45,431 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2021-12-16 03:02:45,436 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-16 03:02:45,437 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:02:45,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:02:45,437 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-16 03:02:45,500 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,500 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,501 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,501 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,501 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,501 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,502 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,502 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,503 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,503 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,503 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,503 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,504 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,505 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,507 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,507 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,507 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,507 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,508 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,508 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,513 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,513 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,513 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,513 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,514 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,514 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,514 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,514 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,515 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,516 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,516 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,517 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,525 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,525 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,526 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,532 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,533 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,533 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,548 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,549 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,549 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,549 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,550 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,550 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,550 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,550 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,551 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,551 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,553 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,553 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,553 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,553 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,553 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,554 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,557 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,557 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,557 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,557 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,557 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,557 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,558 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,558 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,558 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,558 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,558 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,558 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,558 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,559 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,559 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,559 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,559 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,559 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,559 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,560 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,560 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,560 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,560 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,560 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,560 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,563 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,563 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,564 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,564 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,565 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,565 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,565 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,565 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,565 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,566 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,566 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,566 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,566 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,566 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,566 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,567 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,567 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,567 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,567 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,567 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,567 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,568 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,568 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,568 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,568 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,568 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,568 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,569 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,569 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,569 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,569 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,569 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,571 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,574 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,574 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,575 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,575 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,575 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,575 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,575 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,575 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,576 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,577 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,577 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,577 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,578 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,579 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,579 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,579 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,579 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,579 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,579 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,580 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,581 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,581 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,590 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,591 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,591 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,591 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,591 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,591 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,592 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,592 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,592 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,592 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,592 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,592 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,592 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,593 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,593 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,593 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,593 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,594 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,594 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,594 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,594 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,596 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,596 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,596 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,596 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,596 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,596 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,597 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,597 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,601 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,603 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,604 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~stop~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,611 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,611 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,613 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,613 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:02:45,618 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-12-16 03:02:45,660 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:02:45,667 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 [2021-12-16 03:02:45,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-16 03:02:45,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 308 places, 332 transitions, 688 flow [2021-12-16 03:02:45,796 INFO L129 PetriNetUnfolder]: 34/329 cut-off events. [2021-12-16 03:02:45,796 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-16 03:02:45,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 329 events. 34/329 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 506 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 261. Up to 3 conditions per place. [2021-12-16 03:02:45,809 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 332 transitions, 688 flow [2021-12-16 03:02:45,827 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 318 transitions, 654 flow [2021-12-16 03:02:45,905 INFO L129 PetriNetUnfolder]: 34/317 cut-off events. [2021-12-16 03:02:45,906 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-16 03:02:45,906 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:02:45,907 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:02:45,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:02:45,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:02:45,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1152647938, now seen corresponding path program 1 times [2021-12-16 03:02:45,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:02:45,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925851067] [2021-12-16 03:02:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:02:45,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:02:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:02:46,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:02:46,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:02:46,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925851067] [2021-12-16 03:02:46,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925851067] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:02:46,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:02:46,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 03:02:46,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429489742] [2021-12-16 03:02:46,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:02:46,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 03:02:46,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:02:46,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 03:02:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 03:02:46,261 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 332 [2021-12-16 03:02:46,268 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 318 transitions, 654 flow. Second operand has 2 states, 2 states have (on average 316.5) internal successors, (633), 2 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:02:46,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 332 [2021-12-16 03:02:46,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:02:46,351 INFO L129 PetriNetUnfolder]: 21/305 cut-off events. [2021-12-16 03:02:46,351 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-12-16 03:02:46,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 305 events. 21/305 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 505 event pairs, 0 based on Foata normal form. 19/296 useless extension candidates. Maximal degree in co-relation 252. Up to 7 conditions per place. [2021-12-16 03:02:46,358 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 6 selfloop transitions, 0 changer transitions 7/305 dead transitions. [2021-12-16 03:02:46,358 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 305 transitions, 640 flow [2021-12-16 03:02:46,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 03:02:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-16 03:02:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 643 transitions. [2021-12-16 03:02:46,378 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9683734939759037 [2021-12-16 03:02:46,379 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 643 transitions. [2021-12-16 03:02:46,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 643 transitions. [2021-12-16 03:02:46,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:02:46,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 643 transitions. [2021-12-16 03:02:46,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 321.5) internal successors, (643), 2 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,403 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,405 INFO L186 Difference]: Start difference. First operand has 294 places, 318 transitions, 654 flow. Second operand 2 states and 643 transitions. [2021-12-16 03:02:46,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 305 transitions, 640 flow [2021-12-16 03:02:46,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 305 transitions, 628 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-12-16 03:02:46,421 INFO L242 Difference]: Finished difference. Result has 289 places, 298 transitions, 602 flow [2021-12-16 03:02:46,423 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=602, PETRI_PLACES=289, PETRI_TRANSITIONS=298} [2021-12-16 03:02:46,430 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, -5 predicate places. [2021-12-16 03:02:46,431 INFO L470 AbstractCegarLoop]: Abstraction has has 289 places, 298 transitions, 602 flow [2021-12-16 03:02:46,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 316.5) internal successors, (633), 2 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,431 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:02:46,432 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:02:46,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:02:46,432 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:02:46,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:02:46,433 INFO L85 PathProgramCache]: Analyzing trace with hash 694363901, now seen corresponding path program 1 times [2021-12-16 03:02:46,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:02:46,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749502484] [2021-12-16 03:02:46,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:02:46,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:02:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:02:46,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:02:46,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:02:46,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749502484] [2021-12-16 03:02:46,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749502484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:02:46,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:02:46,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:02:46,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365509382] [2021-12-16 03:02:46,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:02:46,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:02:46,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:02:46,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:02:46,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:02:46,671 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 332 [2021-12-16 03:02:46,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 298 transitions, 602 flow. Second operand has 3 states, 3 states have (on average 310.6666666666667) internal successors, (932), 3 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:02:46,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 332 [2021-12-16 03:02:46,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:02:46,781 INFO L129 PetriNetUnfolder]: 40/413 cut-off events. [2021-12-16 03:02:46,781 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-12-16 03:02:46,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 413 events. 40/413 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1188 event pairs, 6 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 460. Up to 22 conditions per place. [2021-12-16 03:02:46,787 INFO L132 encePairwiseOnDemand]: 329/332 looper letters, 14 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2021-12-16 03:02:46,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 304 transitions, 651 flow [2021-12-16 03:02:46,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:02:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-16 03:02:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 941 transitions. [2021-12-16 03:02:46,790 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9447791164658634 [2021-12-16 03:02:46,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 941 transitions. [2021-12-16 03:02:46,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 941 transitions. [2021-12-16 03:02:46,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:02:46,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 941 transitions. [2021-12-16 03:02:46,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,797 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,797 INFO L186 Difference]: Start difference. First operand has 289 places, 298 transitions, 602 flow. Second operand 3 states and 941 transitions. [2021-12-16 03:02:46,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 304 transitions, 651 flow [2021-12-16 03:02:46,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 304 transitions, 651 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-16 03:02:46,806 INFO L242 Difference]: Finished difference. Result has 285 places, 298 transitions, 610 flow [2021-12-16 03:02:46,807 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=610, PETRI_PLACES=285, PETRI_TRANSITIONS=298} [2021-12-16 03:02:46,808 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, -9 predicate places. [2021-12-16 03:02:46,808 INFO L470 AbstractCegarLoop]: Abstraction has has 285 places, 298 transitions, 610 flow [2021-12-16 03:02:46,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.6666666666667) internal successors, (932), 3 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,809 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:02:46,810 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:02:46,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:02:46,810 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:02:46,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:02:46,811 INFO L85 PathProgramCache]: Analyzing trace with hash -391066335, now seen corresponding path program 1 times [2021-12-16 03:02:46,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:02:46,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984375859] [2021-12-16 03:02:46,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:02:46,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:02:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:02:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:02:46,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:02:46,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984375859] [2021-12-16 03:02:46,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984375859] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:02:46,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:02:46,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:02:46,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941760004] [2021-12-16 03:02:46,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:02:46,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:02:46,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:02:46,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:02:46,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:02:46,939 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 332 [2021-12-16 03:02:46,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 298 transitions, 610 flow. Second operand has 3 states, 3 states have (on average 310.6666666666667) internal successors, (932), 3 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:46,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:02:46,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 332 [2021-12-16 03:02:46,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:02:47,057 INFO L129 PetriNetUnfolder]: 49/489 cut-off events. [2021-12-16 03:02:47,057 INFO L130 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2021-12-16 03:02:47,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 489 events. 49/489 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1590 event pairs, 9 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 549. Up to 31 conditions per place. [2021-12-16 03:02:47,063 INFO L132 encePairwiseOnDemand]: 329/332 looper letters, 13 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2021-12-16 03:02:47,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 303 transitions, 654 flow [2021-12-16 03:02:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:02:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-16 03:02:47,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 940 transitions. [2021-12-16 03:02:47,066 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9437751004016064 [2021-12-16 03:02:47,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 940 transitions. [2021-12-16 03:02:47,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 940 transitions. [2021-12-16 03:02:47,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:02:47,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 940 transitions. [2021-12-16 03:02:47,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:47,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:47,072 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:47,072 INFO L186 Difference]: Start difference. First operand has 285 places, 298 transitions, 610 flow. Second operand 3 states and 940 transitions. [2021-12-16 03:02:47,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 303 transitions, 654 flow [2021-12-16 03:02:47,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 303 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-16 03:02:47,078 INFO L242 Difference]: Finished difference. Result has 286 places, 298 transitions, 614 flow [2021-12-16 03:02:47,078 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=614, PETRI_PLACES=286, PETRI_TRANSITIONS=298} [2021-12-16 03:02:47,080 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, -8 predicate places. [2021-12-16 03:02:47,081 INFO L470 AbstractCegarLoop]: Abstraction has has 286 places, 298 transitions, 614 flow [2021-12-16 03:02:47,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.6666666666667) internal successors, (932), 3 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:47,082 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:02:47,082 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:02:47,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:02:47,082 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:02:47,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:02:47,084 INFO L85 PathProgramCache]: Analyzing trace with hash -453812997, now seen corresponding path program 1 times [2021-12-16 03:02:47,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:02:47,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922226080] [2021-12-16 03:02:47,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:02:47,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:02:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:02:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:02:47,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:02:47,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922226080] [2021-12-16 03:02:47,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922226080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:02:47,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:02:47,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:02:47,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629044698] [2021-12-16 03:02:47,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:02:47,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:02:47,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:02:47,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:02:47,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:02:47,202 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 332 [2021-12-16 03:02:47,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 298 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 310.6666666666667) internal successors, (932), 3 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:47,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:02:47,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 332 [2021-12-16 03:02:47,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:02:47,309 INFO L129 PetriNetUnfolder]: 54/498 cut-off events. [2021-12-16 03:02:47,310 INFO L130 PetriNetUnfolder]: For 45/57 co-relation queries the response was YES. [2021-12-16 03:02:47,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 498 events. 54/498 cut-off events. For 45/57 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1762 event pairs, 14 based on Foata normal form. 0/458 useless extension candidates. Maximal degree in co-relation 589. Up to 53 conditions per place. [2021-12-16 03:02:47,315 INFO L132 encePairwiseOnDemand]: 329/332 looper letters, 12 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2021-12-16 03:02:47,315 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 302 transitions, 653 flow [2021-12-16 03:02:47,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:02:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-16 03:02:47,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 939 transitions. [2021-12-16 03:02:47,318 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9427710843373494 [2021-12-16 03:02:47,318 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 939 transitions. [2021-12-16 03:02:47,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 939 transitions. [2021-12-16 03:02:47,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:02:47,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 939 transitions. [2021-12-16 03:02:47,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:47,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:47,323 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:47,324 INFO L186 Difference]: Start difference. First operand has 286 places, 298 transitions, 614 flow. Second operand 3 states and 939 transitions. [2021-12-16 03:02:47,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 302 transitions, 653 flow [2021-12-16 03:02:47,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 302 transitions, 649 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-16 03:02:47,330 INFO L242 Difference]: Finished difference. Result has 287 places, 298 transitions, 618 flow [2021-12-16 03:02:47,330 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=287, PETRI_TRANSITIONS=298} [2021-12-16 03:02:47,331 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, -7 predicate places. [2021-12-16 03:02:47,331 INFO L470 AbstractCegarLoop]: Abstraction has has 287 places, 298 transitions, 618 flow [2021-12-16 03:02:47,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.6666666666667) internal successors, (932), 3 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:47,332 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:02:47,332 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:02:47,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:02:47,333 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:02:47,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:02:47,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1308435147, now seen corresponding path program 1 times [2021-12-16 03:02:47,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:02:47,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459899661] [2021-12-16 03:02:47,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:02:47,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:02:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:02:47,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:02:47,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:02:47,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459899661] [2021-12-16 03:02:47,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459899661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:02:47,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:02:47,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 03:02:47,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24381391] [2021-12-16 03:02:47,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:02:47,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 03:02:47,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:02:47,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 03:02:47,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:02:47,509 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 332 [2021-12-16 03:02:47,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 298 transitions, 618 flow. Second operand has 7 states, 7 states have (on average 257.42857142857144) internal successors, (1802), 7 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:47,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:02:47,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 332 [2021-12-16 03:02:47,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:02:48,558 INFO L129 PetriNetUnfolder]: 1398/5083 cut-off events. [2021-12-16 03:02:48,559 INFO L130 PetriNetUnfolder]: For 372/372 co-relation queries the response was YES. [2021-12-16 03:02:48,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7456 conditions, 5083 events. 1398/5083 cut-off events. For 372/372 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 47559 event pairs, 539 based on Foata normal form. 8/4452 useless extension candidates. Maximal degree in co-relation 7449. Up to 1226 conditions per place. [2021-12-16 03:02:48,617 INFO L132 encePairwiseOnDemand]: 326/332 looper letters, 89 selfloop transitions, 2 changer transitions 8/336 dead transitions. [2021-12-16 03:02:48,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 336 transitions, 904 flow [2021-12-16 03:02:48,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:02:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-16 03:02:48,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1850 transitions. [2021-12-16 03:02:48,621 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7960413080895009 [2021-12-16 03:02:48,622 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1850 transitions. [2021-12-16 03:02:48,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1850 transitions. [2021-12-16 03:02:48,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:02:48,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1850 transitions. [2021-12-16 03:02:48,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 264.2857142857143) internal successors, (1850), 7 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:48,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 332.0) internal successors, (2656), 8 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:48,632 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 332.0) internal successors, (2656), 8 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:48,633 INFO L186 Difference]: Start difference. First operand has 287 places, 298 transitions, 618 flow. Second operand 7 states and 1850 transitions. [2021-12-16 03:02:48,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 336 transitions, 904 flow [2021-12-16 03:02:48,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 336 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-16 03:02:48,640 INFO L242 Difference]: Finished difference. Result has 296 places, 299 transitions, 633 flow [2021-12-16 03:02:48,641 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=633, PETRI_PLACES=296, PETRI_TRANSITIONS=299} [2021-12-16 03:02:48,644 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 2 predicate places. [2021-12-16 03:02:48,644 INFO L470 AbstractCegarLoop]: Abstraction has has 296 places, 299 transitions, 633 flow [2021-12-16 03:02:48,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 257.42857142857144) internal successors, (1802), 7 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:48,646 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:02:48,646 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:02:48,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 03:02:48,647 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:02:48,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:02:48,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1507448843, now seen corresponding path program 2 times [2021-12-16 03:02:48,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:02:48,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091636585] [2021-12-16 03:02:48,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:02:48,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:02:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:02:49,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:02:49,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:02:49,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091636585] [2021-12-16 03:02:49,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091636585] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:02:49,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:02:49,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-16 03:02:49,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490803206] [2021-12-16 03:02:49,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:02:49,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-16 03:02:49,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:02:49,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-16 03:02:49,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-12-16 03:02:49,051 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 332 [2021-12-16 03:02:49,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 299 transitions, 633 flow. Second operand has 17 states, 17 states have (on average 231.88235294117646) internal successors, (3942), 17 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:49,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:02:49,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 332 [2021-12-16 03:02:49,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:02:51,676 INFO L129 PetriNetUnfolder]: 2553/10921 cut-off events. [2021-12-16 03:02:51,676 INFO L130 PetriNetUnfolder]: For 2617/2694 co-relation queries the response was YES. [2021-12-16 03:02:51,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17107 conditions, 10921 events. 2553/10921 cut-off events. For 2617/2694 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 126683 event pairs, 1027 based on Foata normal form. 48/9646 useless extension candidates. Maximal degree in co-relation 17095. Up to 968 conditions per place. [2021-12-16 03:02:51,792 INFO L132 encePairwiseOnDemand]: 309/332 looper letters, 157 selfloop transitions, 31 changer transitions 8/411 dead transitions. [2021-12-16 03:02:51,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 411 transitions, 1346 flow [2021-12-16 03:02:51,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-16 03:02:51,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-12-16 03:02:51,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5436 transitions. [2021-12-16 03:02:51,809 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.711891042430592 [2021-12-16 03:02:51,809 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5436 transitions. [2021-12-16 03:02:51,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5436 transitions. [2021-12-16 03:02:51,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:02:51,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5436 transitions. [2021-12-16 03:02:51,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 236.34782608695653) internal successors, (5436), 23 states have internal predecessors, (5436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:51,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 332.0) internal successors, (7968), 24 states have internal predecessors, (7968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:51,844 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 332.0) internal successors, (7968), 24 states have internal predecessors, (7968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:51,844 INFO L186 Difference]: Start difference. First operand has 296 places, 299 transitions, 633 flow. Second operand 23 states and 5436 transitions. [2021-12-16 03:02:51,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 411 transitions, 1346 flow [2021-12-16 03:02:51,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 411 transitions, 1314 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-12-16 03:02:51,948 INFO L242 Difference]: Finished difference. Result has 325 places, 319 transitions, 827 flow [2021-12-16 03:02:51,949 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=827, PETRI_PLACES=325, PETRI_TRANSITIONS=319} [2021-12-16 03:02:51,951 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 31 predicate places. [2021-12-16 03:02:51,952 INFO L470 AbstractCegarLoop]: Abstraction has has 325 places, 319 transitions, 827 flow [2021-12-16 03:02:51,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 231.88235294117646) internal successors, (3942), 17 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:51,954 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:02:51,954 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:02:51,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 03:02:51,954 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:02:51,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:02:51,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1045801461, now seen corresponding path program 1 times [2021-12-16 03:02:51,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:02:51,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446090703] [2021-12-16 03:02:51,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:02:51,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:02:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:02:52,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:02:52,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:02:52,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446090703] [2021-12-16 03:02:52,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446090703] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:02:52,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:02:52,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:02:52,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560822138] [2021-12-16 03:02:52,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:02:52,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:02:52,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:02:52,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:02:52,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:02:52,035 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:02:52,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 319 transitions, 827 flow. Second operand has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:52,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:02:52,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:02:52,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:02:54,829 INFO L129 PetriNetUnfolder]: 2689/18796 cut-off events. [2021-12-16 03:02:54,829 INFO L130 PetriNetUnfolder]: For 4008/4029 co-relation queries the response was YES. [2021-12-16 03:02:54,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26234 conditions, 18796 events. 2689/18796 cut-off events. For 4008/4029 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 261217 event pairs, 276 based on Foata normal form. 18/16544 useless extension candidates. Maximal degree in co-relation 26211. Up to 1679 conditions per place. [2021-12-16 03:02:55,001 INFO L132 encePairwiseOnDemand]: 324/332 looper letters, 52 selfloop transitions, 12 changer transitions 0/359 dead transitions. [2021-12-16 03:02:55,001 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 359 transitions, 1048 flow [2021-12-16 03:02:55,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:02:55,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:02:55,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1535 transitions. [2021-12-16 03:02:55,005 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9246987951807228 [2021-12-16 03:02:55,005 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1535 transitions. [2021-12-16 03:02:55,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1535 transitions. [2021-12-16 03:02:55,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:02:55,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1535 transitions. [2021-12-16 03:02:55,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 307.0) internal successors, (1535), 5 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:55,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:55,012 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:55,012 INFO L186 Difference]: Start difference. First operand has 325 places, 319 transitions, 827 flow. Second operand 5 states and 1535 transitions. [2021-12-16 03:02:55,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 359 transitions, 1048 flow [2021-12-16 03:02:55,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 359 transitions, 1029 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-12-16 03:02:55,121 INFO L242 Difference]: Finished difference. Result has 320 places, 331 transitions, 894 flow [2021-12-16 03:02:55,122 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=894, PETRI_PLACES=320, PETRI_TRANSITIONS=331} [2021-12-16 03:02:55,122 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 26 predicate places. [2021-12-16 03:02:55,123 INFO L470 AbstractCegarLoop]: Abstraction has has 320 places, 331 transitions, 894 flow [2021-12-16 03:02:55,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:55,130 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:02:55,130 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:02:55,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 03:02:55,131 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:02:55,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:02:55,131 INFO L85 PathProgramCache]: Analyzing trace with hash -638832449, now seen corresponding path program 2 times [2021-12-16 03:02:55,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:02:55,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615231193] [2021-12-16 03:02:55,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:02:55,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:02:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:02:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:02:55,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:02:55,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615231193] [2021-12-16 03:02:55,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615231193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:02:55,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:02:55,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:02:55,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714949258] [2021-12-16 03:02:55,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:02:55,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:02:55,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:02:55,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:02:55,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:02:55,205 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:02:55,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 331 transitions, 894 flow. Second operand has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:55,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:02:55,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:02:55,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:02:57,451 INFO L129 PetriNetUnfolder]: 2605/19061 cut-off events. [2021-12-16 03:02:57,451 INFO L130 PetriNetUnfolder]: For 5030/5124 co-relation queries the response was YES. [2021-12-16 03:02:57,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27412 conditions, 19061 events. 2605/19061 cut-off events. For 5030/5124 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 267071 event pairs, 844 based on Foata normal form. 21/17759 useless extension candidates. Maximal degree in co-relation 27390. Up to 1829 conditions per place. [2021-12-16 03:02:57,627 INFO L132 encePairwiseOnDemand]: 327/332 looper letters, 52 selfloop transitions, 6 changer transitions 0/353 dead transitions. [2021-12-16 03:02:57,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 353 transitions, 1094 flow [2021-12-16 03:02:57,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 03:02:57,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-16 03:02:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1218 transitions. [2021-12-16 03:02:57,631 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9171686746987951 [2021-12-16 03:02:57,631 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1218 transitions. [2021-12-16 03:02:57,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1218 transitions. [2021-12-16 03:02:57,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:02:57,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1218 transitions. [2021-12-16 03:02:57,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 304.5) internal successors, (1218), 4 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:57,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:57,637 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:57,638 INFO L186 Difference]: Start difference. First operand has 320 places, 331 transitions, 894 flow. Second operand 4 states and 1218 transitions. [2021-12-16 03:02:57,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 353 transitions, 1094 flow [2021-12-16 03:02:57,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 353 transitions, 1094 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-16 03:02:57,726 INFO L242 Difference]: Finished difference. Result has 325 places, 332 transitions, 923 flow [2021-12-16 03:02:57,727 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=923, PETRI_PLACES=325, PETRI_TRANSITIONS=332} [2021-12-16 03:02:57,727 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 31 predicate places. [2021-12-16 03:02:57,727 INFO L470 AbstractCegarLoop]: Abstraction has has 325 places, 332 transitions, 923 flow [2021-12-16 03:02:57,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:57,728 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:02:57,728 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:02:57,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 03:02:57,729 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:02:57,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:02:57,729 INFO L85 PathProgramCache]: Analyzing trace with hash -373573351, now seen corresponding path program 1 times [2021-12-16 03:02:57,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:02:57,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464934063] [2021-12-16 03:02:57,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:02:57,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:02:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:02:57,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:02:57,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:02:57,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464934063] [2021-12-16 03:02:57,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464934063] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:02:57,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:02:57,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 03:02:57,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977462428] [2021-12-16 03:02:57,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:02:57,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:02:57,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:02:57,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:02:57,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:02:57,834 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 332 [2021-12-16 03:02:57,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 332 transitions, 923 flow. Second operand has 6 states, 6 states have (on average 276.3333333333333) internal successors, (1658), 6 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:57,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:02:57,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 332 [2021-12-16 03:02:57,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:02:59,460 INFO L129 PetriNetUnfolder]: 2009/11138 cut-off events. [2021-12-16 03:02:59,460 INFO L130 PetriNetUnfolder]: For 4645/5251 co-relation queries the response was YES. [2021-12-16 03:02:59,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17810 conditions, 11138 events. 2009/11138 cut-off events. For 4645/5251 co-relation queries the response was YES. Maximal size of possible extension queue 752. Compared 144863 event pairs, 696 based on Foata normal form. 79/10047 useless extension candidates. Maximal degree in co-relation 17785. Up to 3113 conditions per place. [2021-12-16 03:02:59,534 INFO L132 encePairwiseOnDemand]: 326/332 looper letters, 46 selfloop transitions, 3 changer transitions 7/344 dead transitions. [2021-12-16 03:02:59,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 344 transitions, 1070 flow [2021-12-16 03:02:59,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:02:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-16 03:02:59,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1944 transitions. [2021-12-16 03:02:59,539 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8364888123924269 [2021-12-16 03:02:59,539 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1944 transitions. [2021-12-16 03:02:59,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1944 transitions. [2021-12-16 03:02:59,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:02:59,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1944 transitions. [2021-12-16 03:02:59,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 277.7142857142857) internal successors, (1944), 7 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:59,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 332.0) internal successors, (2656), 8 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:59,546 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 332.0) internal successors, (2656), 8 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:59,546 INFO L186 Difference]: Start difference. First operand has 325 places, 332 transitions, 923 flow. Second operand 7 states and 1944 transitions. [2021-12-16 03:02:59,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 344 transitions, 1070 flow [2021-12-16 03:02:59,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 344 transitions, 1065 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-16 03:02:59,565 INFO L242 Difference]: Finished difference. Result has 335 places, 334 transitions, 943 flow [2021-12-16 03:02:59,566 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=943, PETRI_PLACES=335, PETRI_TRANSITIONS=334} [2021-12-16 03:02:59,566 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 41 predicate places. [2021-12-16 03:02:59,567 INFO L470 AbstractCegarLoop]: Abstraction has has 335 places, 334 transitions, 943 flow [2021-12-16 03:02:59,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.3333333333333) internal successors, (1658), 6 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:59,567 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:02:59,568 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:02:59,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 03:02:59,568 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:02:59,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:02:59,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1618750613, now seen corresponding path program 1 times [2021-12-16 03:02:59,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:02:59,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805649105] [2021-12-16 03:02:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:02:59,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:02:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:02:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:02:59,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:02:59,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805649105] [2021-12-16 03:02:59,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805649105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:02:59,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:02:59,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 03:02:59,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273213939] [2021-12-16 03:02:59,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:02:59,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:02:59,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:02:59,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:02:59,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:02:59,658 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 332 [2021-12-16 03:02:59,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 334 transitions, 943 flow. Second operand has 6 states, 6 states have (on average 276.3333333333333) internal successors, (1658), 6 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:02:59,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:02:59,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 332 [2021-12-16 03:02:59,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:00,794 INFO L129 PetriNetUnfolder]: 641/8441 cut-off events. [2021-12-16 03:03:00,795 INFO L130 PetriNetUnfolder]: For 3374/3991 co-relation queries the response was YES. [2021-12-16 03:03:00,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12994 conditions, 8441 events. 641/8441 cut-off events. For 3374/3991 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 110805 event pairs, 132 based on Foata normal form. 91/7822 useless extension candidates. Maximal degree in co-relation 12964. Up to 1421 conditions per place. [2021-12-16 03:03:00,878 INFO L132 encePairwiseOnDemand]: 326/332 looper letters, 51 selfloop transitions, 3 changer transitions 4/348 dead transitions. [2021-12-16 03:03:00,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 348 transitions, 1104 flow [2021-12-16 03:03:00,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:03:00,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-16 03:03:00,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1946 transitions. [2021-12-16 03:03:00,883 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8373493975903614 [2021-12-16 03:03:00,883 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1946 transitions. [2021-12-16 03:03:00,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1946 transitions. [2021-12-16 03:03:00,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:00,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1946 transitions. [2021-12-16 03:03:00,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:00,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 332.0) internal successors, (2656), 8 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:00,892 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 332.0) internal successors, (2656), 8 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:00,892 INFO L186 Difference]: Start difference. First operand has 335 places, 334 transitions, 943 flow. Second operand 7 states and 1946 transitions. [2021-12-16 03:03:00,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 348 transitions, 1104 flow [2021-12-16 03:03:00,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 348 transitions, 1097 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-12-16 03:03:00,927 INFO L242 Difference]: Finished difference. Result has 341 places, 336 transitions, 963 flow [2021-12-16 03:03:00,928 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=963, PETRI_PLACES=341, PETRI_TRANSITIONS=336} [2021-12-16 03:03:00,929 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 47 predicate places. [2021-12-16 03:03:00,929 INFO L470 AbstractCegarLoop]: Abstraction has has 341 places, 336 transitions, 963 flow [2021-12-16 03:03:00,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.3333333333333) internal successors, (1658), 6 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:00,930 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:00,930 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:00,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 03:03:00,930 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:00,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:00,931 INFO L85 PathProgramCache]: Analyzing trace with hash -826006737, now seen corresponding path program 1 times [2021-12-16 03:03:00,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:00,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047534057] [2021-12-16 03:03:00,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:00,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:01,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:01,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047534057] [2021-12-16 03:03:01,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047534057] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:01,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:01,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 03:03:01,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059710763] [2021-12-16 03:03:01,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:01,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 03:03:01,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:01,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 03:03:01,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:03:01,033 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 332 [2021-12-16 03:03:01,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 336 transitions, 963 flow. Second operand has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:01,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:01,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 332 [2021-12-16 03:03:01,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:05,162 INFO L129 PetriNetUnfolder]: 8727/29986 cut-off events. [2021-12-16 03:03:05,163 INFO L130 PetriNetUnfolder]: For 21189/22793 co-relation queries the response was YES. [2021-12-16 03:03:05,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59998 conditions, 29986 events. 8727/29986 cut-off events. For 21189/22793 co-relation queries the response was YES. Maximal size of possible extension queue 1660. Compared 411726 event pairs, 5394 based on Foata normal form. 793/28692 useless extension candidates. Maximal degree in co-relation 59965. Up to 11163 conditions per place. [2021-12-16 03:03:05,735 INFO L132 encePairwiseOnDemand]: 324/332 looper letters, 93 selfloop transitions, 7 changer transitions 4/375 dead transitions. [2021-12-16 03:03:05,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 375 transitions, 1325 flow [2021-12-16 03:03:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 03:03:05,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-16 03:03:05,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2177 transitions. [2021-12-16 03:03:05,741 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8196536144578314 [2021-12-16 03:03:05,742 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2177 transitions. [2021-12-16 03:03:05,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2177 transitions. [2021-12-16 03:03:05,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:05,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2177 transitions. [2021-12-16 03:03:05,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 272.125) internal successors, (2177), 8 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:05,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:05,754 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:05,754 INFO L186 Difference]: Start difference. First operand has 341 places, 336 transitions, 963 flow. Second operand 8 states and 2177 transitions. [2021-12-16 03:03:05,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 375 transitions, 1325 flow [2021-12-16 03:03:06,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 375 transitions, 1318 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-12-16 03:03:06,242 INFO L242 Difference]: Finished difference. Result has 348 places, 340 transitions, 1013 flow [2021-12-16 03:03:06,243 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1013, PETRI_PLACES=348, PETRI_TRANSITIONS=340} [2021-12-16 03:03:06,243 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 54 predicate places. [2021-12-16 03:03:06,243 INFO L470 AbstractCegarLoop]: Abstraction has has 348 places, 340 transitions, 1013 flow [2021-12-16 03:03:06,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:06,244 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:06,244 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:06,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 03:03:06,245 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:06,245 INFO L85 PathProgramCache]: Analyzing trace with hash -650312531, now seen corresponding path program 1 times [2021-12-16 03:03:06,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:06,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469528408] [2021-12-16 03:03:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:06,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:06,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:06,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469528408] [2021-12-16 03:03:06,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469528408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:06,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:06,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:06,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910029248] [2021-12-16 03:03:06,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:06,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:06,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:06,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:06,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:06,297 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:06,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 340 transitions, 1013 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:06,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:06,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:06,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:08,683 INFO L129 PetriNetUnfolder]: 2522/18444 cut-off events. [2021-12-16 03:03:08,684 INFO L130 PetriNetUnfolder]: For 8447/8514 co-relation queries the response was YES. [2021-12-16 03:03:08,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30767 conditions, 18444 events. 2522/18444 cut-off events. For 8447/8514 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 258797 event pairs, 1274 based on Foata normal form. 30/17000 useless extension candidates. Maximal degree in co-relation 30731. Up to 2892 conditions per place. [2021-12-16 03:03:08,886 INFO L132 encePairwiseOnDemand]: 327/332 looper letters, 48 selfloop transitions, 4 changer transitions 4/359 dead transitions. [2021-12-16 03:03:08,886 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 359 transitions, 1204 flow [2021-12-16 03:03:08,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 03:03:08,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-16 03:03:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1219 transitions. [2021-12-16 03:03:08,889 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9179216867469879 [2021-12-16 03:03:08,889 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1219 transitions. [2021-12-16 03:03:08,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1219 transitions. [2021-12-16 03:03:08,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:08,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1219 transitions. [2021-12-16 03:03:08,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 304.75) internal successors, (1219), 4 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:08,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:08,895 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:08,895 INFO L186 Difference]: Start difference. First operand has 348 places, 340 transitions, 1013 flow. Second operand 4 states and 1219 transitions. [2021-12-16 03:03:08,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 359 transitions, 1204 flow [2021-12-16 03:03:09,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 359 transitions, 1195 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-12-16 03:03:09,107 INFO L242 Difference]: Finished difference. Result has 347 places, 342 transitions, 1046 flow [2021-12-16 03:03:09,108 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1004, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1046, PETRI_PLACES=347, PETRI_TRANSITIONS=342} [2021-12-16 03:03:09,108 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 53 predicate places. [2021-12-16 03:03:09,108 INFO L470 AbstractCegarLoop]: Abstraction has has 347 places, 342 transitions, 1046 flow [2021-12-16 03:03:09,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:09,109 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:09,109 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:09,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 03:03:09,109 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:09,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:09,110 INFO L85 PathProgramCache]: Analyzing trace with hash 337711757, now seen corresponding path program 2 times [2021-12-16 03:03:09,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:09,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423020430] [2021-12-16 03:03:09,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:09,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:09,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:09,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:09,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423020430] [2021-12-16 03:03:09,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423020430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:09,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:09,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:09,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695067333] [2021-12-16 03:03:09,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:09,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:09,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:09,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:09,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:09,158 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:09,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 342 transitions, 1046 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:09,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:09,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:09,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:11,123 INFO L129 PetriNetUnfolder]: 2475/18535 cut-off events. [2021-12-16 03:03:11,123 INFO L130 PetriNetUnfolder]: For 11579/11642 co-relation queries the response was YES. [2021-12-16 03:03:11,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31489 conditions, 18535 events. 2475/18535 cut-off events. For 11579/11642 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 260511 event pairs, 1278 based on Foata normal form. 30/17080 useless extension candidates. Maximal degree in co-relation 31453. Up to 2872 conditions per place. [2021-12-16 03:03:11,476 INFO L132 encePairwiseOnDemand]: 328/332 looper letters, 57 selfloop transitions, 4 changer transitions 4/368 dead transitions. [2021-12-16 03:03:11,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 368 transitions, 1319 flow [2021-12-16 03:03:11,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 03:03:11,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-16 03:03:11,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1221 transitions. [2021-12-16 03:03:11,479 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9194277108433735 [2021-12-16 03:03:11,479 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1221 transitions. [2021-12-16 03:03:11,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1221 transitions. [2021-12-16 03:03:11,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:11,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1221 transitions. [2021-12-16 03:03:11,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 305.25) internal successors, (1221), 4 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:11,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:11,485 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:11,485 INFO L186 Difference]: Start difference. First operand has 347 places, 342 transitions, 1046 flow. Second operand 4 states and 1221 transitions. [2021-12-16 03:03:11,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 368 transitions, 1319 flow [2021-12-16 03:03:11,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 368 transitions, 1307 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-12-16 03:03:11,701 INFO L242 Difference]: Finished difference. Result has 350 places, 343 transitions, 1069 flow [2021-12-16 03:03:11,701 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1069, PETRI_PLACES=350, PETRI_TRANSITIONS=343} [2021-12-16 03:03:11,702 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 56 predicate places. [2021-12-16 03:03:11,702 INFO L470 AbstractCegarLoop]: Abstraction has has 350 places, 343 transitions, 1069 flow [2021-12-16 03:03:11,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:11,703 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:11,703 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:11,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 03:03:11,703 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:11,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:11,704 INFO L85 PathProgramCache]: Analyzing trace with hash 524364033, now seen corresponding path program 1 times [2021-12-16 03:03:11,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:11,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335106357] [2021-12-16 03:03:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:11,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:11,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:11,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:11,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335106357] [2021-12-16 03:03:11,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335106357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:11,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:11,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:11,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855763231] [2021-12-16 03:03:11,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:11,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:11,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:11,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:11,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:11,759 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:11,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 343 transitions, 1069 flow. Second operand has 4 states, 4 states have (on average 298.5) internal successors, (1194), 4 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:11,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:11,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:11,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:13,720 INFO L129 PetriNetUnfolder]: 2369/17391 cut-off events. [2021-12-16 03:03:13,720 INFO L130 PetriNetUnfolder]: For 11308/11378 co-relation queries the response was YES. [2021-12-16 03:03:13,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29927 conditions, 17391 events. 2369/17391 cut-off events. For 11308/11378 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 241320 event pairs, 1298 based on Foata normal form. 39/16025 useless extension candidates. Maximal degree in co-relation 29890. Up to 2892 conditions per place. [2021-12-16 03:03:13,942 INFO L132 encePairwiseOnDemand]: 328/332 looper letters, 46 selfloop transitions, 3 changer transitions 7/359 dead transitions. [2021-12-16 03:03:13,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 359 transitions, 1238 flow [2021-12-16 03:03:13,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 03:03:13,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-16 03:03:13,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1220 transitions. [2021-12-16 03:03:13,945 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9186746987951807 [2021-12-16 03:03:13,945 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1220 transitions. [2021-12-16 03:03:13,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1220 transitions. [2021-12-16 03:03:13,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:13,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1220 transitions. [2021-12-16 03:03:13,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:13,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:13,950 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:13,950 INFO L186 Difference]: Start difference. First operand has 350 places, 343 transitions, 1069 flow. Second operand 4 states and 1220 transitions. [2021-12-16 03:03:13,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 359 transitions, 1238 flow [2021-12-16 03:03:14,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 359 transitions, 1229 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-12-16 03:03:14,133 INFO L242 Difference]: Finished difference. Result has 353 places, 343 transitions, 1076 flow [2021-12-16 03:03:14,134 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1076, PETRI_PLACES=353, PETRI_TRANSITIONS=343} [2021-12-16 03:03:14,134 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 59 predicate places. [2021-12-16 03:03:14,134 INFO L470 AbstractCegarLoop]: Abstraction has has 353 places, 343 transitions, 1076 flow [2021-12-16 03:03:14,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.5) internal successors, (1194), 4 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:14,135 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:14,135 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:14,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 03:03:14,136 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:14,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:14,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2066274123, now seen corresponding path program 3 times [2021-12-16 03:03:14,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:14,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652921848] [2021-12-16 03:03:14,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:14,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:14,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:14,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652921848] [2021-12-16 03:03:14,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652921848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:14,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:14,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:14,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91135643] [2021-12-16 03:03:14,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:14,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:14,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:14,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:14,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:14,187 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:14,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 343 transitions, 1076 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:14,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:14,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:14,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:15,966 INFO L129 PetriNetUnfolder]: 2113/15466 cut-off events. [2021-12-16 03:03:15,966 INFO L130 PetriNetUnfolder]: For 11744/11963 co-relation queries the response was YES. [2021-12-16 03:03:16,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27217 conditions, 15466 events. 2113/15466 cut-off events. For 11744/11963 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 213338 event pairs, 868 based on Foata normal form. 92/14394 useless extension candidates. Maximal degree in co-relation 27179. Up to 1816 conditions per place. [2021-12-16 03:03:16,146 INFO L132 encePairwiseOnDemand]: 327/332 looper letters, 48 selfloop transitions, 10 changer transitions 2/363 dead transitions. [2021-12-16 03:03:16,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 363 transitions, 1276 flow [2021-12-16 03:03:16,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 03:03:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-16 03:03:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1218 transitions. [2021-12-16 03:03:16,149 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9171686746987951 [2021-12-16 03:03:16,149 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1218 transitions. [2021-12-16 03:03:16,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1218 transitions. [2021-12-16 03:03:16,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:16,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1218 transitions. [2021-12-16 03:03:16,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 304.5) internal successors, (1218), 4 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:16,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:16,155 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:16,155 INFO L186 Difference]: Start difference. First operand has 353 places, 343 transitions, 1076 flow. Second operand 4 states and 1218 transitions. [2021-12-16 03:03:16,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 363 transitions, 1276 flow [2021-12-16 03:03:16,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 363 transitions, 1270 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-12-16 03:03:16,311 INFO L242 Difference]: Finished difference. Result has 354 places, 345 transitions, 1120 flow [2021-12-16 03:03:16,311 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1120, PETRI_PLACES=354, PETRI_TRANSITIONS=345} [2021-12-16 03:03:16,312 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 60 predicate places. [2021-12-16 03:03:16,312 INFO L470 AbstractCegarLoop]: Abstraction has has 354 places, 345 transitions, 1120 flow [2021-12-16 03:03:16,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:16,312 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:16,312 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:16,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 03:03:16,312 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:16,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:16,313 INFO L85 PathProgramCache]: Analyzing trace with hash -643350763, now seen corresponding path program 1 times [2021-12-16 03:03:16,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:16,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897516553] [2021-12-16 03:03:16,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:16,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:16,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:16,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:16,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897516553] [2021-12-16 03:03:16,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897516553] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:16,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:16,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:16,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982065975] [2021-12-16 03:03:16,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:16,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:16,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:16,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:16,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:16,355 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:16,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 345 transitions, 1120 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:16,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:16,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:16,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:18,441 INFO L129 PetriNetUnfolder]: 2455/19197 cut-off events. [2021-12-16 03:03:18,441 INFO L130 PetriNetUnfolder]: For 16801/16849 co-relation queries the response was YES. [2021-12-16 03:03:18,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32737 conditions, 19197 events. 2455/19197 cut-off events. For 16801/16849 co-relation queries the response was YES. Maximal size of possible extension queue 635. Compared 272317 event pairs, 595 based on Foata normal form. 72/17911 useless extension candidates. Maximal degree in co-relation 32698. Up to 1781 conditions per place. [2021-12-16 03:03:18,650 INFO L132 encePairwiseOnDemand]: 324/332 looper letters, 57 selfloop transitions, 19 changer transitions 4/383 dead transitions. [2021-12-16 03:03:18,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 383 transitions, 1480 flow [2021-12-16 03:03:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:03:18,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:03:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1534 transitions. [2021-12-16 03:03:18,653 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9240963855421687 [2021-12-16 03:03:18,654 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1534 transitions. [2021-12-16 03:03:18,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1534 transitions. [2021-12-16 03:03:18,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:18,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1534 transitions. [2021-12-16 03:03:18,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 306.8) internal successors, (1534), 5 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:18,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:18,659 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:18,660 INFO L186 Difference]: Start difference. First operand has 354 places, 345 transitions, 1120 flow. Second operand 5 states and 1534 transitions. [2021-12-16 03:03:18,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 383 transitions, 1480 flow [2021-12-16 03:03:18,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 383 transitions, 1471 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-16 03:03:18,859 INFO L242 Difference]: Finished difference. Result has 361 places, 356 transitions, 1291 flow [2021-12-16 03:03:18,860 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1113, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1291, PETRI_PLACES=361, PETRI_TRANSITIONS=356} [2021-12-16 03:03:18,860 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 67 predicate places. [2021-12-16 03:03:18,860 INFO L470 AbstractCegarLoop]: Abstraction has has 361 places, 356 transitions, 1291 flow [2021-12-16 03:03:18,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:18,861 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:18,861 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:18,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 03:03:18,861 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:18,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:18,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1924599687, now seen corresponding path program 2 times [2021-12-16 03:03:18,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:18,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528178337] [2021-12-16 03:03:18,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:18,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:18,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:18,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:18,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528178337] [2021-12-16 03:03:18,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528178337] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:18,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:18,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:18,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394975881] [2021-12-16 03:03:18,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:18,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:18,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:18,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:18,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:18,905 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:18,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 356 transitions, 1291 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:18,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:18,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:18,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:21,127 INFO L129 PetriNetUnfolder]: 2357/18673 cut-off events. [2021-12-16 03:03:21,127 INFO L130 PetriNetUnfolder]: For 18402/18569 co-relation queries the response was YES. [2021-12-16 03:03:21,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33182 conditions, 18673 events. 2357/18673 cut-off events. For 18402/18569 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 267079 event pairs, 933 based on Foata normal form. 106/17457 useless extension candidates. Maximal degree in co-relation 33140. Up to 2345 conditions per place. [2021-12-16 03:03:21,379 INFO L132 encePairwiseOnDemand]: 324/332 looper letters, 58 selfloop transitions, 15 changer transitions 7/383 dead transitions. [2021-12-16 03:03:21,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 383 transitions, 1554 flow [2021-12-16 03:03:21,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:03:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:03:21,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1529 transitions. [2021-12-16 03:03:21,382 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9210843373493975 [2021-12-16 03:03:21,382 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1529 transitions. [2021-12-16 03:03:21,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1529 transitions. [2021-12-16 03:03:21,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:21,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1529 transitions. [2021-12-16 03:03:21,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 305.8) internal successors, (1529), 5 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:21,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:21,387 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:21,387 INFO L186 Difference]: Start difference. First operand has 361 places, 356 transitions, 1291 flow. Second operand 5 states and 1529 transitions. [2021-12-16 03:03:21,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 383 transitions, 1554 flow [2021-12-16 03:03:21,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 383 transitions, 1533 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-12-16 03:03:21,628 INFO L242 Difference]: Finished difference. Result has 367 places, 360 transitions, 1376 flow [2021-12-16 03:03:21,629 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1244, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1376, PETRI_PLACES=367, PETRI_TRANSITIONS=360} [2021-12-16 03:03:21,629 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 73 predicate places. [2021-12-16 03:03:21,629 INFO L470 AbstractCegarLoop]: Abstraction has has 367 places, 360 transitions, 1376 flow [2021-12-16 03:03:21,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:21,629 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:21,630 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:21,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 03:03:21,630 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:21,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:21,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1106884587, now seen corresponding path program 3 times [2021-12-16 03:03:21,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:21,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323527246] [2021-12-16 03:03:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:21,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:21,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:21,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:21,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323527246] [2021-12-16 03:03:21,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323527246] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:21,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:21,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:21,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465262535] [2021-12-16 03:03:21,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:21,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:21,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:21,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:21,672 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:21,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 360 transitions, 1376 flow. Second operand has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:21,673 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:21,673 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:21,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:23,668 INFO L129 PetriNetUnfolder]: 2277/14705 cut-off events. [2021-12-16 03:03:23,669 INFO L130 PetriNetUnfolder]: For 21552/22243 co-relation queries the response was YES. [2021-12-16 03:03:23,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29237 conditions, 14705 events. 2277/14705 cut-off events. For 21552/22243 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 203984 event pairs, 700 based on Foata normal form. 158/13700 useless extension candidates. Maximal degree in co-relation 29192. Up to 1828 conditions per place. [2021-12-16 03:03:23,772 INFO L132 encePairwiseOnDemand]: 323/332 looper letters, 60 selfloop transitions, 23 changer transitions 7/393 dead transitions. [2021-12-16 03:03:23,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 393 transitions, 1720 flow [2021-12-16 03:03:23,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:03:23,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:03:23,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1533 transitions. [2021-12-16 03:03:23,775 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9234939759036145 [2021-12-16 03:03:23,775 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1533 transitions. [2021-12-16 03:03:23,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1533 transitions. [2021-12-16 03:03:23,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:23,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1533 transitions. [2021-12-16 03:03:23,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 306.6) internal successors, (1533), 5 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:23,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:23,781 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:23,781 INFO L186 Difference]: Start difference. First operand has 367 places, 360 transitions, 1376 flow. Second operand 5 states and 1533 transitions. [2021-12-16 03:03:23,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 393 transitions, 1720 flow [2021-12-16 03:03:23,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 393 transitions, 1708 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-12-16 03:03:23,953 INFO L242 Difference]: Finished difference. Result has 375 places, 371 transitions, 1568 flow [2021-12-16 03:03:23,954 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1568, PETRI_PLACES=375, PETRI_TRANSITIONS=371} [2021-12-16 03:03:23,954 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 81 predicate places. [2021-12-16 03:03:23,954 INFO L470 AbstractCegarLoop]: Abstraction has has 375 places, 371 transitions, 1568 flow [2021-12-16 03:03:23,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:23,954 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:23,955 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:23,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 03:03:23,955 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:23,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:23,955 INFO L85 PathProgramCache]: Analyzing trace with hash -599414882, now seen corresponding path program 1 times [2021-12-16 03:03:23,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:23,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880600196] [2021-12-16 03:03:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:23,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:03:23,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:23,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880600196] [2021-12-16 03:03:23,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880600196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:23,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:23,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:23,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28525202] [2021-12-16 03:03:23,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:23,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:23,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:23,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:23,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:23,998 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:23,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 371 transitions, 1568 flow. Second operand has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:23,999 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:23,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:23,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:26,879 INFO L129 PetriNetUnfolder]: 2891/22959 cut-off events. [2021-12-16 03:03:26,879 INFO L130 PetriNetUnfolder]: For 30936/31484 co-relation queries the response was YES. [2021-12-16 03:03:27,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42028 conditions, 22959 events. 2891/22959 cut-off events. For 30936/31484 co-relation queries the response was YES. Maximal size of possible extension queue 753. Compared 338011 event pairs, 1005 based on Foata normal form. 43/21277 useless extension candidates. Maximal degree in co-relation 41979. Up to 2611 conditions per place. [2021-12-16 03:03:27,307 INFO L132 encePairwiseOnDemand]: 324/332 looper letters, 70 selfloop transitions, 16 changer transitions 16/405 dead transitions. [2021-12-16 03:03:27,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 405 transitions, 2004 flow [2021-12-16 03:03:27,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:03:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:03:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1532 transitions. [2021-12-16 03:03:27,308 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9228915662650602 [2021-12-16 03:03:27,309 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1532 transitions. [2021-12-16 03:03:27,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1532 transitions. [2021-12-16 03:03:27,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:27,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1532 transitions. [2021-12-16 03:03:27,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 306.4) internal successors, (1532), 5 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:27,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:27,313 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:27,314 INFO L186 Difference]: Start difference. First operand has 375 places, 371 transitions, 1568 flow. Second operand 5 states and 1532 transitions. [2021-12-16 03:03:27,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 405 transitions, 2004 flow [2021-12-16 03:03:27,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 405 transitions, 1972 flow, removed 16 selfloop flow, removed 0 redundant places. [2021-12-16 03:03:27,784 INFO L242 Difference]: Finished difference. Result has 382 places, 371 transitions, 1608 flow [2021-12-16 03:03:27,785 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1534, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1608, PETRI_PLACES=382, PETRI_TRANSITIONS=371} [2021-12-16 03:03:27,785 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 88 predicate places. [2021-12-16 03:03:27,785 INFO L470 AbstractCegarLoop]: Abstraction has has 382 places, 371 transitions, 1608 flow [2021-12-16 03:03:27,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:27,786 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:27,786 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:27,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 03:03:27,786 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:27,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:27,786 INFO L85 PathProgramCache]: Analyzing trace with hash -930930264, now seen corresponding path program 1 times [2021-12-16 03:03:27,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:27,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82656457] [2021-12-16 03:03:27,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:27,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:27,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:03:27,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:27,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82656457] [2021-12-16 03:03:27,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82656457] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:27,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:27,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:27,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932580634] [2021-12-16 03:03:27,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:27,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:27,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:27,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:27,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:27,833 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:27,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 371 transitions, 1608 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:27,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:27,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:27,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:30,886 INFO L129 PetriNetUnfolder]: 2692/21079 cut-off events. [2021-12-16 03:03:30,886 INFO L130 PetriNetUnfolder]: For 31625/32269 co-relation queries the response was YES. [2021-12-16 03:03:30,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39305 conditions, 21079 events. 2692/21079 cut-off events. For 31625/32269 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 304512 event pairs, 1179 based on Foata normal form. 21/19448 useless extension candidates. Maximal degree in co-relation 39252. Up to 3453 conditions per place. [2021-12-16 03:03:31,013 INFO L132 encePairwiseOnDemand]: 328/332 looper letters, 71 selfloop transitions, 7 changer transitions 8/389 dead transitions. [2021-12-16 03:03:31,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 389 transitions, 1904 flow [2021-12-16 03:03:31,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 03:03:31,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-16 03:03:31,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1218 transitions. [2021-12-16 03:03:31,014 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9171686746987951 [2021-12-16 03:03:31,015 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1218 transitions. [2021-12-16 03:03:31,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1218 transitions. [2021-12-16 03:03:31,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:31,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1218 transitions. [2021-12-16 03:03:31,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 304.5) internal successors, (1218), 4 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:31,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:31,018 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 332.0) internal successors, (1660), 5 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:31,018 INFO L186 Difference]: Start difference. First operand has 382 places, 371 transitions, 1608 flow. Second operand 4 states and 1218 transitions. [2021-12-16 03:03:31,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 389 transitions, 1904 flow [2021-12-16 03:03:31,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 389 transitions, 1894 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-12-16 03:03:31,361 INFO L242 Difference]: Finished difference. Result has 386 places, 371 transitions, 1621 flow [2021-12-16 03:03:31,362 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1590, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1621, PETRI_PLACES=386, PETRI_TRANSITIONS=371} [2021-12-16 03:03:31,362 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 92 predicate places. [2021-12-16 03:03:31,362 INFO L470 AbstractCegarLoop]: Abstraction has has 386 places, 371 transitions, 1621 flow [2021-12-16 03:03:31,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:31,363 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:31,363 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:31,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-16 03:03:31,363 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:31,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash 122308600, now seen corresponding path program 2 times [2021-12-16 03:03:31,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:31,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463083323] [2021-12-16 03:03:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:31,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:03:31,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:31,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463083323] [2021-12-16 03:03:31,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463083323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:31,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:31,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:31,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347959161] [2021-12-16 03:03:31,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:31,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:31,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:31,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:31,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:31,408 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:31,409 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 371 transitions, 1621 flow. Second operand has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:31,409 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:31,409 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:31,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:33,814 INFO L129 PetriNetUnfolder]: 2418/17889 cut-off events. [2021-12-16 03:03:33,814 INFO L130 PetriNetUnfolder]: For 29352/30027 co-relation queries the response was YES. [2021-12-16 03:03:34,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34106 conditions, 17889 events. 2418/17889 cut-off events. For 29352/30027 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 253864 event pairs, 827 based on Foata normal form. 74/16588 useless extension candidates. Maximal degree in co-relation 34051. Up to 1485 conditions per place. [2021-12-16 03:03:34,074 INFO L132 encePairwiseOnDemand]: 324/332 looper letters, 70 selfloop transitions, 21 changer transitions 16/410 dead transitions. [2021-12-16 03:03:34,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 410 transitions, 2167 flow [2021-12-16 03:03:34,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:03:34,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:03:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1531 transitions. [2021-12-16 03:03:34,076 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.922289156626506 [2021-12-16 03:03:34,076 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1531 transitions. [2021-12-16 03:03:34,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1531 transitions. [2021-12-16 03:03:34,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:34,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1531 transitions. [2021-12-16 03:03:34,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 306.2) internal successors, (1531), 5 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:34,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:34,079 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:34,079 INFO L186 Difference]: Start difference. First operand has 386 places, 371 transitions, 1621 flow. Second operand 5 states and 1531 transitions. [2021-12-16 03:03:34,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 410 transitions, 2167 flow [2021-12-16 03:03:34,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 410 transitions, 2131 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-12-16 03:03:34,331 INFO L242 Difference]: Finished difference. Result has 390 places, 371 transitions, 1686 flow [2021-12-16 03:03:34,331 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1597, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1686, PETRI_PLACES=390, PETRI_TRANSITIONS=371} [2021-12-16 03:03:34,332 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 96 predicate places. [2021-12-16 03:03:34,332 INFO L470 AbstractCegarLoop]: Abstraction has has 390 places, 371 transitions, 1686 flow [2021-12-16 03:03:34,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:34,332 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:34,333 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:34,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-16 03:03:34,333 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:34,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:34,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1702867078, now seen corresponding path program 2 times [2021-12-16 03:03:34,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:34,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003645207] [2021-12-16 03:03:34,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:34,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:03:34,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:34,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003645207] [2021-12-16 03:03:34,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003645207] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:34,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:34,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:34,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468964606] [2021-12-16 03:03:34,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:34,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:34,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:34,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:34,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:34,381 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:34,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 371 transitions, 1686 flow. Second operand has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:34,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:34,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:34,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:36,828 INFO L129 PetriNetUnfolder]: 2394/18918 cut-off events. [2021-12-16 03:03:36,828 INFO L130 PetriNetUnfolder]: For 32485/33035 co-relation queries the response was YES. [2021-12-16 03:03:37,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36045 conditions, 18918 events. 2394/18918 cut-off events. For 32485/33035 co-relation queries the response was YES. Maximal size of possible extension queue 780. Compared 274636 event pairs, 523 based on Foata normal form. 34/17477 useless extension candidates. Maximal degree in co-relation 35990. Up to 2297 conditions per place. [2021-12-16 03:03:37,138 INFO L132 encePairwiseOnDemand]: 324/332 looper letters, 66 selfloop transitions, 30 changer transitions 26/425 dead transitions. [2021-12-16 03:03:37,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 425 transitions, 2428 flow [2021-12-16 03:03:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:03:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:03:37,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1535 transitions. [2021-12-16 03:03:37,140 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9246987951807228 [2021-12-16 03:03:37,140 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1535 transitions. [2021-12-16 03:03:37,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1535 transitions. [2021-12-16 03:03:37,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:37,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1535 transitions. [2021-12-16 03:03:37,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 307.0) internal successors, (1535), 5 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:37,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:37,144 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:37,144 INFO L186 Difference]: Start difference. First operand has 390 places, 371 transitions, 1686 flow. Second operand 5 states and 1535 transitions. [2021-12-16 03:03:37,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 425 transitions, 2428 flow [2021-12-16 03:03:37,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 425 transitions, 2422 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-12-16 03:03:37,455 INFO L242 Difference]: Finished difference. Result has 397 places, 375 transitions, 1865 flow [2021-12-16 03:03:37,455 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1661, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1865, PETRI_PLACES=397, PETRI_TRANSITIONS=375} [2021-12-16 03:03:37,456 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 103 predicate places. [2021-12-16 03:03:37,456 INFO L470 AbstractCegarLoop]: Abstraction has has 397 places, 375 transitions, 1865 flow [2021-12-16 03:03:37,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:37,456 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:37,457 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:37,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-16 03:03:37,457 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:37,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:37,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1455642934, now seen corresponding path program 3 times [2021-12-16 03:03:37,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:37,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165918562] [2021-12-16 03:03:37,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:37,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:03:37,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:37,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165918562] [2021-12-16 03:03:37,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165918562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:37,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:37,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:03:37,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542825499] [2021-12-16 03:03:37,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:37,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:03:37,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:37,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:03:37,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:03:37,525 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:37,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 375 transitions, 1865 flow. Second operand has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:37,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:37,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:37,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:39,440 INFO L129 PetriNetUnfolder]: 1864/13471 cut-off events. [2021-12-16 03:03:39,441 INFO L130 PetriNetUnfolder]: For 34074/34321 co-relation queries the response was YES. [2021-12-16 03:03:39,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27059 conditions, 13471 events. 1864/13471 cut-off events. For 34074/34321 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 181745 event pairs, 537 based on Foata normal form. 98/12431 useless extension candidates. Maximal degree in co-relation 27000. Up to 1604 conditions per place. [2021-12-16 03:03:39,627 INFO L132 encePairwiseOnDemand]: 323/332 looper letters, 50 selfloop transitions, 26 changer transitions 24/397 dead transitions. [2021-12-16 03:03:39,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 397 transitions, 2144 flow [2021-12-16 03:03:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:03:39,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:03:39,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1530 transitions. [2021-12-16 03:03:39,629 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9216867469879518 [2021-12-16 03:03:39,629 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1530 transitions. [2021-12-16 03:03:39,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1530 transitions. [2021-12-16 03:03:39,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:39,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1530 transitions. [2021-12-16 03:03:39,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:39,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:39,632 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 332.0) internal successors, (1992), 6 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:39,632 INFO L186 Difference]: Start difference. First operand has 397 places, 375 transitions, 1865 flow. Second operand 5 states and 1530 transitions. [2021-12-16 03:03:39,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 397 transitions, 2144 flow [2021-12-16 03:03:39,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 397 transitions, 2046 flow, removed 13 selfloop flow, removed 9 redundant places. [2021-12-16 03:03:39,850 INFO L242 Difference]: Finished difference. Result has 395 places, 361 transitions, 1694 flow [2021-12-16 03:03:39,850 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1730, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1694, PETRI_PLACES=395, PETRI_TRANSITIONS=361} [2021-12-16 03:03:39,851 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 101 predicate places. [2021-12-16 03:03:39,851 INFO L470 AbstractCegarLoop]: Abstraction has has 395 places, 361 transitions, 1694 flow [2021-12-16 03:03:39,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:39,851 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:39,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:39,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-16 03:03:39,852 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:39,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:39,852 INFO L85 PathProgramCache]: Analyzing trace with hash 695722564, now seen corresponding path program 1 times [2021-12-16 03:03:39,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:39,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269620806] [2021-12-16 03:03:39,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:39,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:40,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:40,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269620806] [2021-12-16 03:03:40,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269620806] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:03:40,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756496422] [2021-12-16 03:03:40,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:40,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:03:40,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:03:40,035 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) [2021-12-16 03:03:40,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 03:03:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:40,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-16 03:03:40,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:03:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:40,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:03:41,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:41,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756496422] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-16 03:03:41,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-16 03:03:41,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15, 13] total 29 [2021-12-16 03:03:41,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655362786] [2021-12-16 03:03:41,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:41,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 03:03:41,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:41,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 03:03:41,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2021-12-16 03:03:41,589 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 332 [2021-12-16 03:03:41,590 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 361 transitions, 1694 flow. Second operand has 13 states, 13 states have (on average 236.15384615384616) internal successors, (3070), 13 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:41,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:41,591 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 332 [2021-12-16 03:03:41,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:03:46,574 INFO L129 PetriNetUnfolder]: 6855/34093 cut-off events. [2021-12-16 03:03:46,575 INFO L130 PetriNetUnfolder]: For 25396/27762 co-relation queries the response was YES. [2021-12-16 03:03:47,043 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57980 conditions, 34093 events. 6855/34093 cut-off events. For 25396/27762 co-relation queries the response was YES. Maximal size of possible extension queue 1190. Compared 505534 event pairs, 1659 based on Foata normal form. 289/30181 useless extension candidates. Maximal degree in co-relation 57927. Up to 4058 conditions per place. [2021-12-16 03:03:47,134 INFO L132 encePairwiseOnDemand]: 306/332 looper letters, 202 selfloop transitions, 37 changer transitions 4/508 dead transitions. [2021-12-16 03:03:47,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 508 transitions, 2739 flow [2021-12-16 03:03:47,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 03:03:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-12-16 03:03:47,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5755 transitions. [2021-12-16 03:03:47,139 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7222640562248996 [2021-12-16 03:03:47,140 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5755 transitions. [2021-12-16 03:03:47,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5755 transitions. [2021-12-16 03:03:47,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:03:47,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5755 transitions. [2021-12-16 03:03:47,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 239.79166666666666) internal successors, (5755), 24 states have internal predecessors, (5755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:47,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 332.0) internal successors, (8300), 25 states have internal predecessors, (8300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:47,155 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 332.0) internal successors, (8300), 25 states have internal predecessors, (8300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:47,156 INFO L186 Difference]: Start difference. First operand has 395 places, 361 transitions, 1694 flow. Second operand 24 states and 5755 transitions. [2021-12-16 03:03:47,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 508 transitions, 2739 flow [2021-12-16 03:03:47,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 508 transitions, 2656 flow, removed 20 selfloop flow, removed 6 redundant places. [2021-12-16 03:03:47,324 INFO L242 Difference]: Finished difference. Result has 412 places, 386 transitions, 1866 flow [2021-12-16 03:03:47,324 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1617, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1866, PETRI_PLACES=412, PETRI_TRANSITIONS=386} [2021-12-16 03:03:47,325 INFO L334 CegarLoopForPetriNet]: 294 programPoint places, 118 predicate places. [2021-12-16 03:03:47,325 INFO L470 AbstractCegarLoop]: Abstraction has has 412 places, 386 transitions, 1866 flow [2021-12-16 03:03:47,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 236.15384615384616) internal successors, (3070), 13 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:47,325 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:03:47,325 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:03:47,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 03:03:47,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-16 03:03:47,534 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:03:47,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:03:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1169265238, now seen corresponding path program 1 times [2021-12-16 03:03:47,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:03:47,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741099707] [2021-12-16 03:03:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:03:47,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:03:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:03:47,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:03:47,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:03:47,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741099707] [2021-12-16 03:03:47,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741099707] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:03:47,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:03:47,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:03:47,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101952143] [2021-12-16 03:03:47,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:03:47,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:03:47,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:03:47,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:03:47,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:03:47,639 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 332 [2021-12-16 03:03:47,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 386 transitions, 1866 flow. Second operand has 5 states, 5 states have (on average 297.2) internal successors, (1486), 5 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:03:47,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:03:47,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 332 [2021-12-16 03:03:47,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand