./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX --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 761ee9f18ea63f4f821d50962d6c2d771ad2410f7c5dd57f48ec51463a1d5307 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:42:28,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:42:28,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:42:28,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:42:28,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:42:28,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:42:28,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:42:28,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:42:28,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:42:28,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:42:28,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:42:28,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:42:28,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:42:28,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:42:28,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:42:28,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:42:28,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:42:28,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:42:28,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:42:28,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:42:28,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:42:28,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:42:28,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:42:28,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:42:28,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:42:28,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:42:28,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:42:28,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:42:28,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:42:28,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:42:28,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:42:28,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:42:28,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:42:28,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:42:28,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:42:28,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:42:28,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:42:28,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:42:28,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:42:28,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:42:28,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:42:28,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 08:42:28,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:42:28,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:42:28,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:42:28,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:42:28,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:42:28,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:42:28,469 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:42:28,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:42:28,469 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:42:28,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:42:28,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:42:28,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:42:28,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:42:28,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:42:28,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:42:28,472 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:42:28,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:42:28,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:42:28,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:42:28,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:42:28,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:42:28,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:42:28,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:42:28,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:42:28,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:42:28,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:42:28,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:42:28,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:42:28,476 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:42:28,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:42:28,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:42:28,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:42:28,479 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 761ee9f18ea63f4f821d50962d6c2d771ad2410f7c5dd57f48ec51463a1d5307 [2021-11-09 08:42:28,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:42:28,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:42:28,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:42:28,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:42:28,935 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:42:28,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2021-11-09 08:42:29,029 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/data/dcab08afb/6f465a3ac353425a973c982f03145dde/FLAG039b441ea [2021-11-09 08:42:29,698 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:42:29,703 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2021-11-09 08:42:29,719 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/data/dcab08afb/6f465a3ac353425a973c982f03145dde/FLAG039b441ea [2021-11-09 08:42:30,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/data/dcab08afb/6f465a3ac353425a973c982f03145dde [2021-11-09 08:42:30,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:42:30,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:42:30,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:42:30,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:42:30,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:42:30,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@339ae26b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30, skipping insertion in model container [2021-11-09 08:42:30,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:42:30,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:42:30,301 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c[2575,2588] [2021-11-09 08:42:30,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:42:30,318 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:42:30,346 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c[2575,2588] [2021-11-09 08:42:30,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:42:30,367 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:42:30,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30 WrapperNode [2021-11-09 08:42:30,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:42:30,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:42:30,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:42:30,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:42:30,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:42:30,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:42:30,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:42:30,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:42:30,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:42:30,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:42:30,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:42:30,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:42:30,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (1/1) ... [2021-11-09 08:42:30,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:42:30,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:42:30,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:42:30,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2611c10d-2903-4d63-8d88-6c50cf9bd113/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:42:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-09 08:42:30,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-09 08:42:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-09 08:42:30,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-09 08:42:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-09 08:42:30,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-09 08:42:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:42:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:42:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:42:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:42:30,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:42:30,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:42:30,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:42:30,618 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-09 08:42:31,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:42:31,342 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-11-09 08:42:31,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:42:31 BoogieIcfgContainer [2021-11-09 08:42:31,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:42:31,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:42:31,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:42:31,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:42:31,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:42:30" (1/3) ... [2021-11-09 08:42:31,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26afbd97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:42:31, skipping insertion in model container [2021-11-09 08:42:31,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:42:30" (2/3) ... [2021-11-09 08:42:31,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26afbd97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:42:31, skipping insertion in model container [2021-11-09 08:42:31,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:42:31" (3/3) ... [2021-11-09 08:42:31,357 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2021-11-09 08:42:31,363 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 08:42:31,364 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:42:31,364 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:42:31,364 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 08:42:31,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,419 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,419 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,419 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,419 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,420 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,420 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,420 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,420 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,421 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,421 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,424 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,424 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,427 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,428 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,428 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,428 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,428 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,429 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,429 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,429 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,430 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,430 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,430 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,430 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,431 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,431 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,433 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,434 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,434 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,434 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,437 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,437 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,439 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,439 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,439 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,439 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,440 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,441 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,442 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,442 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,442 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,443 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,443 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,443 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,444 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,444 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,445 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,445 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,445 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,446 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,446 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,446 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,447 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,447 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,448 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,449 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,453 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,454 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,454 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,455 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,456 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,467 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,467 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,467 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,468 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,468 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,468 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,468 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,469 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,469 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,469 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,469 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,470 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,470 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,470 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,470 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,471 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,471 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,473 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,473 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,473 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,473 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,474 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,474 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,474 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,474 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,475 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,475 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,476 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,476 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,476 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,476 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,477 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,477 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,477 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,477 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,478 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,478 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,478 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,478 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,479 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,479 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,480 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,481 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,481 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,481 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,481 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,482 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,482 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,482 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,482 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,483 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,483 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,483 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,483 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,484 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,484 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,484 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,485 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,485 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,485 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,485 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,486 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,486 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,486 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,487 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,487 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,487 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,487 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,488 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,488 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,488 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,488 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,489 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,489 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,489 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,490 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,490 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,494 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,494 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,494 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,494 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,495 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,495 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,495 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,495 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,496 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,497 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,497 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,497 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,497 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,498 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,498 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,499 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,499 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,499 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,499 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,500 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,501 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,506 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,507 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,507 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,507 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,508 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,508 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,508 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,509 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,515 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,516 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,516 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,516 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,517 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,517 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,517 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,517 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,543 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,543 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,543 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,544 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,544 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,544 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,544 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,545 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,545 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,545 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,554 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,555 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,555 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,555 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,555 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,556 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,556 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,556 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,556 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,557 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,557 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,557 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,557 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,558 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,558 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,558 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,559 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,559 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,559 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,559 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,560 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,560 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,560 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,560 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,561 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,561 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,561 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,562 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,562 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,562 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,562 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,564 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,564 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,572 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,572 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,574 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,574 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,574 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,574 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,586 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,587 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,587 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,587 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,587 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,588 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,588 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,588 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,588 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,588 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,589 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,589 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,589 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,593 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,595 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,595 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:42:31,610 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-09 08:42:31,682 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:42:31,698 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 [2021-11-09 08:42:31,698 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-09 08:42:31,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 202 places, 209 transitions, 442 flow [2021-11-09 08:42:31,860 INFO L129 PetriNetUnfolder]: 17/206 cut-off events. [2021-11-09 08:42:31,861 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-09 08:42:31,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 206 events. 17/206 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 447 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 136. Up to 2 conditions per place. [2021-11-09 08:42:31,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 209 transitions, 442 flow [2021-11-09 08:42:31,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 196 transitions, 410 flow [2021-11-09 08:42:31,962 INFO L129 PetriNetUnfolder]: 17/195 cut-off events. [2021-11-09 08:42:31,962 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-09 08:42:31,963 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:31,963 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] [2021-11-09 08:42:31,964 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:31,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:31,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1566768348, now seen corresponding path program 1 times [2021-11-09 08:42:31,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:31,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357151496] [2021-11-09 08:42:31,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:31,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:32,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:32,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357151496] [2021-11-09 08:42:32,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357151496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:32,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:32,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:42:32,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153422360] [2021-11-09 08:42:32,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:42:32,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:32,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:42:32,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:42:32,411 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 209 [2021-11-09 08:42:32,417 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 196 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:32,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:32,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 209 [2021-11-09 08:42:32,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:32,560 INFO L129 PetriNetUnfolder]: 25/384 cut-off events. [2021-11-09 08:42:32,561 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-11-09 08:42:32,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 384 events. 25/384 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1822 event pairs, 4 based on Foata normal form. 56/398 useless extension candidates. Maximal degree in co-relation 340. Up to 21 conditions per place. [2021-11-09 08:42:32,572 INFO L132 encePairwiseOnDemand]: 191/209 looper letters, 8 selfloop transitions, 6 changer transitions 2/192 dead transitions. [2021-11-09 08:42:32,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 192 transitions, 430 flow [2021-11-09 08:42:32,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:42:32,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:42:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 604 transitions. [2021-11-09 08:42:32,592 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9633173843700159 [2021-11-09 08:42:32,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 604 transitions. [2021-11-09 08:42:32,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 604 transitions. [2021-11-09 08:42:32,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:32,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 604 transitions. [2021-11-09 08:42:32,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:32,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:32,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:32,620 INFO L186 Difference]: Start difference. First operand has 189 places, 196 transitions, 410 flow. Second operand 3 states and 604 transitions. [2021-11-09 08:42:32,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 192 transitions, 430 flow [2021-11-09 08:42:32,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 192 transitions, 418 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-11-09 08:42:32,634 INFO L242 Difference]: Finished difference. Result has 187 places, 190 transitions, 426 flow [2021-11-09 08:42:32,637 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=187, PETRI_TRANSITIONS=190} [2021-11-09 08:42:32,638 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, -2 predicate places. [2021-11-09 08:42:32,639 INFO L470 AbstractCegarLoop]: Abstraction has has 187 places, 190 transitions, 426 flow [2021-11-09 08:42:32,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:32,640 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:32,640 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] [2021-11-09 08:42:32,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:42:32,641 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:32,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:32,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1565917214, now seen corresponding path program 1 times [2021-11-09 08:42:32,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:32,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988769800] [2021-11-09 08:42:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:32,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:32,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:32,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:32,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988769800] [2021-11-09 08:42:32,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988769800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:32,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:32,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:42:32,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145345524] [2021-11-09 08:42:32,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:42:32,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:32,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:42:32,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:42:32,755 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 209 [2021-11-09 08:42:32,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 190 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:32,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:32,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 209 [2021-11-09 08:42:32,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:32,880 INFO L129 PetriNetUnfolder]: 19/314 cut-off events. [2021-11-09 08:42:32,880 INFO L130 PetriNetUnfolder]: For 46/102 co-relation queries the response was YES. [2021-11-09 08:42:32,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 314 events. 19/314 cut-off events. For 46/102 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1231 event pairs, 0 based on Foata normal form. 8/302 useless extension candidates. Maximal degree in co-relation 277. Up to 15 conditions per place. [2021-11-09 08:42:32,890 INFO L132 encePairwiseOnDemand]: 201/209 looper letters, 14 selfloop transitions, 4 changer transitions 0/194 dead transitions. [2021-11-09 08:42:32,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 194 transitions, 478 flow [2021-11-09 08:42:32,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:42:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:42:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2021-11-09 08:42:32,896 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.937799043062201 [2021-11-09 08:42:32,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 588 transitions. [2021-11-09 08:42:32,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 588 transitions. [2021-11-09 08:42:32,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:32,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 588 transitions. [2021-11-09 08:42:32,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:32,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:32,906 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:32,906 INFO L186 Difference]: Start difference. First operand has 187 places, 190 transitions, 426 flow. Second operand 3 states and 588 transitions. [2021-11-09 08:42:32,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 194 transitions, 478 flow [2021-11-09 08:42:32,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 194 transitions, 466 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 08:42:32,923 INFO L242 Difference]: Finished difference. Result has 187 places, 194 transitions, 462 flow [2021-11-09 08:42:32,924 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=187, PETRI_TRANSITIONS=194} [2021-11-09 08:42:32,925 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, -2 predicate places. [2021-11-09 08:42:32,925 INFO L470 AbstractCegarLoop]: Abstraction has has 187 places, 194 transitions, 462 flow [2021-11-09 08:42:32,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:32,926 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:32,927 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] [2021-11-09 08:42:32,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:42:32,928 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:32,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:32,934 INFO L85 PathProgramCache]: Analyzing trace with hash 858077754, now seen corresponding path program 1 times [2021-11-09 08:42:32,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:32,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025443418] [2021-11-09 08:42:32,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:32,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:33,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:33,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:33,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025443418] [2021-11-09 08:42:33,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025443418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:33,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:33,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:42:33,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338115193] [2021-11-09 08:42:33,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:42:33,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:33,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:42:33,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:42:33,052 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 209 [2021-11-09 08:42:33,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 194 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:33,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:33,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 209 [2021-11-09 08:42:33,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:33,271 INFO L129 PetriNetUnfolder]: 38/942 cut-off events. [2021-11-09 08:42:33,271 INFO L130 PetriNetUnfolder]: For 44/164 co-relation queries the response was YES. [2021-11-09 08:42:33,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 942 events. 38/942 cut-off events. For 44/164 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7227 event pairs, 2 based on Foata normal form. 0/877 useless extension candidates. Maximal degree in co-relation 930. Up to 36 conditions per place. [2021-11-09 08:42:33,285 INFO L132 encePairwiseOnDemand]: 203/209 looper letters, 8 selfloop transitions, 3 changer transitions 0/197 dead transitions. [2021-11-09 08:42:33,285 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 197 transitions, 490 flow [2021-11-09 08:42:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:42:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:42:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 590 transitions. [2021-11-09 08:42:33,288 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9409888357256778 [2021-11-09 08:42:33,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 590 transitions. [2021-11-09 08:42:33,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 590 transitions. [2021-11-09 08:42:33,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:33,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 590 transitions. [2021-11-09 08:42:33,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:33,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:33,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:33,295 INFO L186 Difference]: Start difference. First operand has 187 places, 194 transitions, 462 flow. Second operand 3 states and 590 transitions. [2021-11-09 08:42:33,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 197 transitions, 490 flow [2021-11-09 08:42:33,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 197 transitions, 478 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-11-09 08:42:33,305 INFO L242 Difference]: Finished difference. Result has 190 places, 197 transitions, 480 flow [2021-11-09 08:42:33,305 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=480, PETRI_PLACES=190, PETRI_TRANSITIONS=197} [2021-11-09 08:42:33,306 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 1 predicate places. [2021-11-09 08:42:33,306 INFO L470 AbstractCegarLoop]: Abstraction has has 190 places, 197 transitions, 480 flow [2021-11-09 08:42:33,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:33,307 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:33,307 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] [2021-11-09 08:42:33,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:42:33,307 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:33,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash 686596128, now seen corresponding path program 1 times [2021-11-09 08:42:33,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:33,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196609034] [2021-11-09 08:42:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:33,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:33,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:33,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:33,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196609034] [2021-11-09 08:42:33,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196609034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:33,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:33,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 08:42:33,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607883875] [2021-11-09 08:42:33,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:42:33,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:33,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:42:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:42:33,505 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2021-11-09 08:42:33,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 197 transitions, 480 flow. Second operand has 7 states, 7 states have (on average 183.14285714285714) internal successors, (1282), 7 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:33,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:33,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2021-11-09 08:42:33,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:33,859 INFO L129 PetriNetUnfolder]: 38/986 cut-off events. [2021-11-09 08:42:33,859 INFO L130 PetriNetUnfolder]: For 15/63 co-relation queries the response was YES. [2021-11-09 08:42:33,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 986 events. 38/986 cut-off events. For 15/63 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7642 event pairs, 2 based on Foata normal form. 2/918 useless extension candidates. Maximal degree in co-relation 957. Up to 55 conditions per place. [2021-11-09 08:42:33,883 INFO L132 encePairwiseOnDemand]: 201/209 looper letters, 16 selfloop transitions, 5 changer transitions 3/204 dead transitions. [2021-11-09 08:42:33,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 204 transitions, 542 flow [2021-11-09 08:42:33,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:42:33,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-09 08:42:33,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1654 transitions. [2021-11-09 08:42:33,891 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8793195108984583 [2021-11-09 08:42:33,891 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1654 transitions. [2021-11-09 08:42:33,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1654 transitions. [2021-11-09 08:42:33,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:33,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1654 transitions. [2021-11-09 08:42:33,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 183.77777777777777) internal successors, (1654), 9 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:33,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 209.0) internal successors, (2090), 10 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:33,908 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 209.0) internal successors, (2090), 10 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:33,909 INFO L186 Difference]: Start difference. First operand has 190 places, 197 transitions, 480 flow. Second operand 9 states and 1654 transitions. [2021-11-09 08:42:33,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 204 transitions, 542 flow [2021-11-09 08:42:33,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 204 transitions, 539 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-09 08:42:33,920 INFO L242 Difference]: Finished difference. Result has 204 places, 201 transitions, 518 flow [2021-11-09 08:42:33,920 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=518, PETRI_PLACES=204, PETRI_TRANSITIONS=201} [2021-11-09 08:42:33,921 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 15 predicate places. [2021-11-09 08:42:33,921 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 201 transitions, 518 flow [2021-11-09 08:42:33,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 183.14285714285714) internal successors, (1282), 7 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:33,922 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:33,923 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] [2021-11-09 08:42:33,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 08:42:33,923 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:33,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:33,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2043474816, now seen corresponding path program 1 times [2021-11-09 08:42:33,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:33,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934276398] [2021-11-09 08:42:33,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:33,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:34,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:34,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:34,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934276398] [2021-11-09 08:42:34,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934276398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:34,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:34,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:34,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222965422] [2021-11-09 08:42:34,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:34,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:34,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:34,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:34,212 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:34,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 201 transitions, 518 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:34,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:34,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:34,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:35,325 INFO L129 PetriNetUnfolder]: 448/2786 cut-off events. [2021-11-09 08:42:35,325 INFO L130 PetriNetUnfolder]: For 21/69 co-relation queries the response was YES. [2021-11-09 08:42:35,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4125 conditions, 2786 events. 448/2786 cut-off events. For 21/69 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 27201 event pairs, 144 based on Foata normal form. 2/2585 useless extension candidates. Maximal degree in co-relation 4034. Up to 351 conditions per place. [2021-11-09 08:42:35,387 INFO L132 encePairwiseOnDemand]: 194/209 looper letters, 56 selfloop transitions, 37 changer transitions 7/275 dead transitions. [2021-11-09 08:42:35,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 275 transitions, 881 flow [2021-11-09 08:42:35,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-09 08:42:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-09 08:42:35,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2853 transitions. [2021-11-09 08:42:35,400 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8531698564593302 [2021-11-09 08:42:35,400 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2853 transitions. [2021-11-09 08:42:35,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2853 transitions. [2021-11-09 08:42:35,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:35,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2853 transitions. [2021-11-09 08:42:35,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 178.3125) internal successors, (2853), 16 states have internal predecessors, (2853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:35,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 209.0) internal successors, (3553), 17 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:35,430 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 209.0) internal successors, (3553), 17 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:35,430 INFO L186 Difference]: Start difference. First operand has 204 places, 201 transitions, 518 flow. Second operand 16 states and 2853 transitions. [2021-11-09 08:42:35,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 275 transitions, 881 flow [2021-11-09 08:42:35,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 275 transitions, 868 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-11-09 08:42:35,447 INFO L242 Difference]: Finished difference. Result has 226 places, 237 transitions, 766 flow [2021-11-09 08:42:35,448 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=766, PETRI_PLACES=226, PETRI_TRANSITIONS=237} [2021-11-09 08:42:35,448 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 37 predicate places. [2021-11-09 08:42:35,449 INFO L470 AbstractCegarLoop]: Abstraction has has 226 places, 237 transitions, 766 flow [2021-11-09 08:42:35,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:35,450 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:35,450 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] [2021-11-09 08:42:35,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 08:42:35,451 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:35,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:35,452 INFO L85 PathProgramCache]: Analyzing trace with hash 316825106, now seen corresponding path program 1 times [2021-11-09 08:42:35,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:35,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250597431] [2021-11-09 08:42:35,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:35,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:35,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:35,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:35,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250597431] [2021-11-09 08:42:35,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250597431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:35,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:35,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:42:35,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758484315] [2021-11-09 08:42:35,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:42:35,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:42:35,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:42:35,598 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 209 [2021-11-09 08:42:35,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 237 transitions, 766 flow. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:35,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:35,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 209 [2021-11-09 08:42:35,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:35,935 INFO L129 PetriNetUnfolder]: 162/1345 cut-off events. [2021-11-09 08:42:35,935 INFO L130 PetriNetUnfolder]: For 744/848 co-relation queries the response was YES. [2021-11-09 08:42:35,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 1345 events. 162/1345 cut-off events. For 744/848 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 11368 event pairs, 27 based on Foata normal form. 4/1256 useless extension candidates. Maximal degree in co-relation 2585. Up to 121 conditions per place. [2021-11-09 08:42:35,960 INFO L132 encePairwiseOnDemand]: 201/209 looper letters, 9 selfloop transitions, 5 changer transitions 0/240 dead transitions. [2021-11-09 08:42:35,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 240 transitions, 806 flow [2021-11-09 08:42:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:42:35,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:42:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 590 transitions. [2021-11-09 08:42:35,964 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9409888357256778 [2021-11-09 08:42:35,964 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 590 transitions. [2021-11-09 08:42:35,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 590 transitions. [2021-11-09 08:42:35,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:35,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 590 transitions. [2021-11-09 08:42:35,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:35,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:35,973 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:35,974 INFO L186 Difference]: Start difference. First operand has 226 places, 237 transitions, 766 flow. Second operand 3 states and 590 transitions. [2021-11-09 08:42:35,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 240 transitions, 806 flow [2021-11-09 08:42:36,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 240 transitions, 802 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-11-09 08:42:36,017 INFO L242 Difference]: Finished difference. Result has 226 places, 240 transitions, 806 flow [2021-11-09 08:42:36,017 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=806, PETRI_PLACES=226, PETRI_TRANSITIONS=240} [2021-11-09 08:42:36,018 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 37 predicate places. [2021-11-09 08:42:36,018 INFO L470 AbstractCegarLoop]: Abstraction has has 226 places, 240 transitions, 806 flow [2021-11-09 08:42:36,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:36,019 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:36,020 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] [2021-11-09 08:42:36,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 08:42:36,020 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:36,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:36,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1174740652, now seen corresponding path program 1 times [2021-11-09 08:42:36,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:36,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861908564] [2021-11-09 08:42:36,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:36,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:36,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:36,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:36,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861908564] [2021-11-09 08:42:36,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861908564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:36,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:36,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:36,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092288529] [2021-11-09 08:42:36,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:36,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:36,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:36,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:36,293 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:36,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 240 transitions, 806 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:36,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:36,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:36,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:37,227 INFO L129 PetriNetUnfolder]: 483/2154 cut-off events. [2021-11-09 08:42:37,227 INFO L130 PetriNetUnfolder]: For 1695/1799 co-relation queries the response was YES. [2021-11-09 08:42:37,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5371 conditions, 2154 events. 483/2154 cut-off events. For 1695/1799 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 18377 event pairs, 182 based on Foata normal form. 1/2015 useless extension candidates. Maximal degree in co-relation 5194. Up to 870 conditions per place. [2021-11-09 08:42:37,276 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 83 selfloop transitions, 26 changer transitions 7/294 dead transitions. [2021-11-09 08:42:37,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 294 transitions, 1308 flow [2021-11-09 08:42:37,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-09 08:42:37,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-09 08:42:37,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2826 transitions. [2021-11-09 08:42:37,288 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8450956937799043 [2021-11-09 08:42:37,288 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2826 transitions. [2021-11-09 08:42:37,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2826 transitions. [2021-11-09 08:42:37,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:37,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2826 transitions. [2021-11-09 08:42:37,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 176.625) internal successors, (2826), 16 states have internal predecessors, (2826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:37,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 209.0) internal successors, (3553), 17 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:37,314 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 209.0) internal successors, (3553), 17 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:37,314 INFO L186 Difference]: Start difference. First operand has 226 places, 240 transitions, 806 flow. Second operand 16 states and 2826 transitions. [2021-11-09 08:42:37,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 294 transitions, 1308 flow [2021-11-09 08:42:37,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 294 transitions, 1292 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-11-09 08:42:37,396 INFO L242 Difference]: Finished difference. Result has 250 places, 265 transitions, 1076 flow [2021-11-09 08:42:37,397 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1076, PETRI_PLACES=250, PETRI_TRANSITIONS=265} [2021-11-09 08:42:37,397 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 61 predicate places. [2021-11-09 08:42:37,398 INFO L470 AbstractCegarLoop]: Abstraction has has 250 places, 265 transitions, 1076 flow [2021-11-09 08:42:37,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:37,399 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:37,399 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] [2021-11-09 08:42:37,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 08:42:37,400 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1148713590, now seen corresponding path program 2 times [2021-11-09 08:42:37,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:37,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192191990] [2021-11-09 08:42:37,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:37,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:37,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:37,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192191990] [2021-11-09 08:42:37,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192191990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:37,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:37,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:37,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157427856] [2021-11-09 08:42:37,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:37,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:37,674 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:37,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 265 transitions, 1076 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:37,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:37,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:37,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:39,046 INFO L129 PetriNetUnfolder]: 603/2986 cut-off events. [2021-11-09 08:42:39,047 INFO L130 PetriNetUnfolder]: For 4158/4282 co-relation queries the response was YES. [2021-11-09 08:42:39,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8320 conditions, 2986 events. 603/2986 cut-off events. For 4158/4282 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 27968 event pairs, 211 based on Foata normal form. 1/2822 useless extension candidates. Maximal degree in co-relation 8258. Up to 952 conditions per place. [2021-11-09 08:42:39,115 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 130 selfloop transitions, 41 changer transitions 7/356 dead transitions. [2021-11-09 08:42:39,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 356 transitions, 2112 flow [2021-11-09 08:42:39,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 08:42:39,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-11-09 08:42:39,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4231 transitions. [2021-11-09 08:42:39,131 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8435007974481659 [2021-11-09 08:42:39,131 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4231 transitions. [2021-11-09 08:42:39,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4231 transitions. [2021-11-09 08:42:39,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:39,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4231 transitions. [2021-11-09 08:42:39,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.29166666666666) internal successors, (4231), 24 states have internal predecessors, (4231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:39,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:39,174 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:39,175 INFO L186 Difference]: Start difference. First operand has 250 places, 265 transitions, 1076 flow. Second operand 24 states and 4231 transitions. [2021-11-09 08:42:39,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 356 transitions, 2112 flow [2021-11-09 08:42:39,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 356 transitions, 1874 flow, removed 119 selfloop flow, removed 2 redundant places. [2021-11-09 08:42:39,277 INFO L242 Difference]: Finished difference. Result has 288 places, 294 transitions, 1371 flow [2021-11-09 08:42:39,278 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1371, PETRI_PLACES=288, PETRI_TRANSITIONS=294} [2021-11-09 08:42:39,278 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 99 predicate places. [2021-11-09 08:42:39,278 INFO L470 AbstractCegarLoop]: Abstraction has has 288 places, 294 transitions, 1371 flow [2021-11-09 08:42:39,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:39,279 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:39,280 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] [2021-11-09 08:42:39,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 08:42:39,280 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:39,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:39,281 INFO L85 PathProgramCache]: Analyzing trace with hash -2131549090, now seen corresponding path program 3 times [2021-11-09 08:42:39,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:39,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551425272] [2021-11-09 08:42:39,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:39,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:39,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:39,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551425272] [2021-11-09 08:42:39,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551425272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:39,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:39,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:39,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858250729] [2021-11-09 08:42:39,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:39,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:39,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:39,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:39,503 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:39,505 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 294 transitions, 1371 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:39,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:39,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:39,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:40,730 INFO L129 PetriNetUnfolder]: 674/3177 cut-off events. [2021-11-09 08:42:40,730 INFO L130 PetriNetUnfolder]: For 7015/7139 co-relation queries the response was YES. [2021-11-09 08:42:40,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10063 conditions, 3177 events. 674/3177 cut-off events. For 7015/7139 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 29880 event pairs, 237 based on Foata normal form. 1/2994 useless extension candidates. Maximal degree in co-relation 9983. Up to 1051 conditions per place. [2021-11-09 08:42:40,821 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 131 selfloop transitions, 41 changer transitions 7/357 dead transitions. [2021-11-09 08:42:40,821 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 357 transitions, 2337 flow [2021-11-09 08:42:40,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:42:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-09 08:42:40,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3004 transitions. [2021-11-09 08:42:40,834 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8454826906839291 [2021-11-09 08:42:40,835 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3004 transitions. [2021-11-09 08:42:40,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3004 transitions. [2021-11-09 08:42:40,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:40,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3004 transitions. [2021-11-09 08:42:40,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 176.7058823529412) internal successors, (3004), 17 states have internal predecessors, (3004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:40,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:40,861 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:40,861 INFO L186 Difference]: Start difference. First operand has 288 places, 294 transitions, 1371 flow. Second operand 17 states and 3004 transitions. [2021-11-09 08:42:40,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 357 transitions, 2337 flow [2021-11-09 08:42:40,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 357 transitions, 2229 flow, removed 54 selfloop flow, removed 2 redundant places. [2021-11-09 08:42:40,994 INFO L242 Difference]: Finished difference. Result has 309 places, 326 transitions, 1803 flow [2021-11-09 08:42:40,995 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1277, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1803, PETRI_PLACES=309, PETRI_TRANSITIONS=326} [2021-11-09 08:42:40,995 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 120 predicate places. [2021-11-09 08:42:40,996 INFO L470 AbstractCegarLoop]: Abstraction has has 309 places, 326 transitions, 1803 flow [2021-11-09 08:42:40,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:40,997 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:40,997 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] [2021-11-09 08:42:40,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 08:42:40,997 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:40,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:40,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1763299546, now seen corresponding path program 4 times [2021-11-09 08:42:40,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:40,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298775811] [2021-11-09 08:42:40,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:40,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:41,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:41,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:41,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298775811] [2021-11-09 08:42:41,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298775811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:41,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:41,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:41,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652226325] [2021-11-09 08:42:41,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:41,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:41,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:41,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:41,285 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:41,289 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 326 transitions, 1803 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:41,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:41,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:41,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:42,537 INFO L129 PetriNetUnfolder]: 707/3357 cut-off events. [2021-11-09 08:42:42,538 INFO L130 PetriNetUnfolder]: For 9689/9832 co-relation queries the response was YES. [2021-11-09 08:42:42,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11246 conditions, 3357 events. 707/3357 cut-off events. For 9689/9832 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 32478 event pairs, 215 based on Foata normal form. 5/3191 useless extension candidates. Maximal degree in co-relation 11158. Up to 1130 conditions per place. [2021-11-09 08:42:42,630 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 145 selfloop transitions, 61 changer transitions 7/391 dead transitions. [2021-11-09 08:42:42,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 391 transitions, 2976 flow [2021-11-09 08:42:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-09 08:42:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-09 08:42:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2828 transitions. [2021-11-09 08:42:42,640 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8456937799043063 [2021-11-09 08:42:42,641 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2828 transitions. [2021-11-09 08:42:42,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2828 transitions. [2021-11-09 08:42:42,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:42,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2828 transitions. [2021-11-09 08:42:42,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 176.75) internal successors, (2828), 16 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:42,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 209.0) internal successors, (3553), 17 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:42,661 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 209.0) internal successors, (3553), 17 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:42,662 INFO L186 Difference]: Start difference. First operand has 309 places, 326 transitions, 1803 flow. Second operand 16 states and 2828 transitions. [2021-11-09 08:42:42,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 391 transitions, 2976 flow [2021-11-09 08:42:42,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 391 transitions, 2768 flow, removed 104 selfloop flow, removed 2 redundant places. [2021-11-09 08:42:42,794 INFO L242 Difference]: Finished difference. Result has 330 places, 348 transitions, 2140 flow [2021-11-09 08:42:42,795 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1637, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2140, PETRI_PLACES=330, PETRI_TRANSITIONS=348} [2021-11-09 08:42:42,796 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 141 predicate places. [2021-11-09 08:42:42,796 INFO L470 AbstractCegarLoop]: Abstraction has has 330 places, 348 transitions, 2140 flow [2021-11-09 08:42:42,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:42,797 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:42,797 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] [2021-11-09 08:42:42,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 08:42:42,798 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:42,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:42,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1374716110, now seen corresponding path program 5 times [2021-11-09 08:42:42,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:42,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065060242] [2021-11-09 08:42:42,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:42,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:42,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:42,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:42,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065060242] [2021-11-09 08:42:42,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065060242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:42,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:42,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:42,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370650984] [2021-11-09 08:42:42,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:42,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:42,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:42,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:42,965 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:42,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 348 transitions, 2140 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:42,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:42,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:42,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:44,384 INFO L129 PetriNetUnfolder]: 738/3646 cut-off events. [2021-11-09 08:42:44,385 INFO L130 PetriNetUnfolder]: For 12952/13120 co-relation queries the response was YES. [2021-11-09 08:42:44,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12632 conditions, 3646 events. 738/3646 cut-off events. For 12952/13120 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 36388 event pairs, 244 based on Foata normal form. 1/3463 useless extension candidates. Maximal degree in co-relation 12535. Up to 1152 conditions per place. [2021-11-09 08:42:44,499 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 155 selfloop transitions, 63 changer transitions 7/403 dead transitions. [2021-11-09 08:42:44,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 403 transitions, 3312 flow [2021-11-09 08:42:44,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:42:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-09 08:42:44,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3003 transitions. [2021-11-09 08:42:44,506 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8452012383900929 [2021-11-09 08:42:44,507 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3003 transitions. [2021-11-09 08:42:44,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3003 transitions. [2021-11-09 08:42:44,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:44,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3003 transitions. [2021-11-09 08:42:44,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 176.64705882352942) internal successors, (3003), 17 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:44,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:44,525 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:44,525 INFO L186 Difference]: Start difference. First operand has 330 places, 348 transitions, 2140 flow. Second operand 17 states and 3003 transitions. [2021-11-09 08:42:44,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 403 transitions, 3312 flow [2021-11-09 08:42:44,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 403 transitions, 3137 flow, removed 76 selfloop flow, removed 3 redundant places. [2021-11-09 08:42:44,704 INFO L242 Difference]: Finished difference. Result has 351 places, 377 transitions, 2671 flow [2021-11-09 08:42:44,705 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1984, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2671, PETRI_PLACES=351, PETRI_TRANSITIONS=377} [2021-11-09 08:42:44,705 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 162 predicate places. [2021-11-09 08:42:44,706 INFO L470 AbstractCegarLoop]: Abstraction has has 351 places, 377 transitions, 2671 flow [2021-11-09 08:42:44,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:44,707 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:44,707 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] [2021-11-09 08:42:44,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 08:42:44,707 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:44,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:44,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1856840578, now seen corresponding path program 6 times [2021-11-09 08:42:44,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:44,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484605086] [2021-11-09 08:42:44,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:44,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:44,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:44,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:44,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484605086] [2021-11-09 08:42:44,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484605086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:44,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:44,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:44,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220146892] [2021-11-09 08:42:44,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:44,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:44,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:44,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:44,881 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:44,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 377 transitions, 2671 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:44,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:44,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:44,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:46,621 INFO L129 PetriNetUnfolder]: 765/3820 cut-off events. [2021-11-09 08:42:46,621 INFO L130 PetriNetUnfolder]: For 16906/17074 co-relation queries the response was YES. [2021-11-09 08:42:46,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14066 conditions, 3820 events. 765/3820 cut-off events. For 16906/17074 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 38995 event pairs, 215 based on Foata normal form. 12/3646 useless extension candidates. Maximal degree in co-relation 13961. Up to 1174 conditions per place. [2021-11-09 08:42:46,718 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 167 selfloop transitions, 87 changer transitions 7/439 dead transitions. [2021-11-09 08:42:46,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 439 transitions, 3982 flow [2021-11-09 08:42:46,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-09 08:42:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-11-09 08:42:46,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3873 transitions. [2021-11-09 08:42:46,727 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8423227490213137 [2021-11-09 08:42:46,727 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3873 transitions. [2021-11-09 08:42:46,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3873 transitions. [2021-11-09 08:42:46,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:46,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3873 transitions. [2021-11-09 08:42:46,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 176.04545454545453) internal successors, (3873), 22 states have internal predecessors, (3873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:46,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 209.0) internal successors, (4807), 23 states have internal predecessors, (4807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:46,759 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 209.0) internal successors, (4807), 23 states have internal predecessors, (4807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:46,759 INFO L186 Difference]: Start difference. First operand has 351 places, 377 transitions, 2671 flow. Second operand 22 states and 3873 transitions. [2021-11-09 08:42:46,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 439 transitions, 3982 flow [2021-11-09 08:42:47,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 439 transitions, 3640 flow, removed 171 selfloop flow, removed 2 redundant places. [2021-11-09 08:42:47,010 INFO L242 Difference]: Finished difference. Result has 381 places, 402 transitions, 3046 flow [2021-11-09 08:42:47,011 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2437, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3046, PETRI_PLACES=381, PETRI_TRANSITIONS=402} [2021-11-09 08:42:47,012 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 192 predicate places. [2021-11-09 08:42:47,012 INFO L470 AbstractCegarLoop]: Abstraction has has 381 places, 402 transitions, 3046 flow [2021-11-09 08:42:47,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:47,013 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:47,013 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] [2021-11-09 08:42:47,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-09 08:42:47,014 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:47,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:47,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1899867384, now seen corresponding path program 7 times [2021-11-09 08:42:47,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:47,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422116141] [2021-11-09 08:42:47,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:47,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:47,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:47,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:47,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422116141] [2021-11-09 08:42:47,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422116141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:47,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:47,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:47,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219661863] [2021-11-09 08:42:47,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:47,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:47,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:47,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:47,208 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:47,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 402 transitions, 3046 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:47,211 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:47,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:47,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:48,751 INFO L129 PetriNetUnfolder]: 782/3894 cut-off events. [2021-11-09 08:42:48,752 INFO L130 PetriNetUnfolder]: For 17936/18111 co-relation queries the response was YES. [2021-11-09 08:42:49,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14720 conditions, 3894 events. 782/3894 cut-off events. For 17936/18111 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 40111 event pairs, 236 based on Foata normal form. 12/3730 useless extension candidates. Maximal degree in co-relation 14603. Up to 1232 conditions per place. [2021-11-09 08:42:49,051 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 188 selfloop transitions, 79 changer transitions 7/452 dead transitions. [2021-11-09 08:42:49,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 452 transitions, 4306 flow [2021-11-09 08:42:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:42:49,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:42:49,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3179 transitions. [2021-11-09 08:42:49,062 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8450292397660819 [2021-11-09 08:42:49,062 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3179 transitions. [2021-11-09 08:42:49,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3179 transitions. [2021-11-09 08:42:49,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:49,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3179 transitions. [2021-11-09 08:42:49,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 176.61111111111111) internal successors, (3179), 18 states have internal predecessors, (3179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:49,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:49,085 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:49,086 INFO L186 Difference]: Start difference. First operand has 381 places, 402 transitions, 3046 flow. Second operand 18 states and 3179 transitions. [2021-11-09 08:42:49,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 452 transitions, 4306 flow [2021-11-09 08:42:49,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 452 transitions, 4144 flow, removed 77 selfloop flow, removed 4 redundant places. [2021-11-09 08:42:49,332 INFO L242 Difference]: Finished difference. Result has 401 places, 432 transitions, 3702 flow [2021-11-09 08:42:49,334 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2895, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3702, PETRI_PLACES=401, PETRI_TRANSITIONS=432} [2021-11-09 08:42:49,334 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 212 predicate places. [2021-11-09 08:42:49,335 INFO L470 AbstractCegarLoop]: Abstraction has has 401 places, 432 transitions, 3702 flow [2021-11-09 08:42:49,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:49,336 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:49,336 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] [2021-11-09 08:42:49,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 08:42:49,337 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:49,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:49,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1234909872, now seen corresponding path program 8 times [2021-11-09 08:42:49,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:49,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329251774] [2021-11-09 08:42:49,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:49,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:49,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:49,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329251774] [2021-11-09 08:42:49,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329251774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:49,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:49,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:49,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142607836] [2021-11-09 08:42:49,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:49,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:49,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:49,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:49,503 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:49,505 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 432 transitions, 3702 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:49,505 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:49,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:49,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:51,027 INFO L129 PetriNetUnfolder]: 783/4006 cut-off events. [2021-11-09 08:42:51,028 INFO L130 PetriNetUnfolder]: For 19805/20008 co-relation queries the response was YES. [2021-11-09 08:42:51,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15234 conditions, 4006 events. 783/4006 cut-off events. For 19805/20008 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 41658 event pairs, 215 based on Foata normal form. 12/3829 useless extension candidates. Maximal degree in co-relation 15111. Up to 1239 conditions per place. [2021-11-09 08:42:51,124 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 184 selfloop transitions, 103 changer transitions 7/472 dead transitions. [2021-11-09 08:42:51,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 472 transitions, 4707 flow [2021-11-09 08:42:51,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:42:51,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:42:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3175 transitions. [2021-11-09 08:42:51,133 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8439659755449229 [2021-11-09 08:42:51,133 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3175 transitions. [2021-11-09 08:42:51,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3175 transitions. [2021-11-09 08:42:51,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:51,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3175 transitions. [2021-11-09 08:42:51,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 176.38888888888889) internal successors, (3175), 18 states have internal predecessors, (3175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:51,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:51,150 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:51,151 INFO L186 Difference]: Start difference. First operand has 401 places, 432 transitions, 3702 flow. Second operand 18 states and 3175 transitions. [2021-11-09 08:42:51,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 472 transitions, 4707 flow [2021-11-09 08:42:51,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 472 transitions, 4459 flow, removed 124 selfloop flow, removed 2 redundant places. [2021-11-09 08:42:51,372 INFO L242 Difference]: Finished difference. Result has 420 places, 443 transitions, 3891 flow [2021-11-09 08:42:51,373 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3456, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3891, PETRI_PLACES=420, PETRI_TRANSITIONS=443} [2021-11-09 08:42:51,373 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 231 predicate places. [2021-11-09 08:42:51,373 INFO L470 AbstractCegarLoop]: Abstraction has has 420 places, 443 transitions, 3891 flow [2021-11-09 08:42:51,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:51,374 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:51,376 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] [2021-11-09 08:42:51,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 08:42:51,377 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:51,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:51,377 INFO L85 PathProgramCache]: Analyzing trace with hash -175295592, now seen corresponding path program 9 times [2021-11-09 08:42:51,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:51,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531745542] [2021-11-09 08:42:51,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:51,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:51,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:51,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:51,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531745542] [2021-11-09 08:42:51,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531745542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:51,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:51,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:51,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517686616] [2021-11-09 08:42:51,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:51,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:51,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:51,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:51,526 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:51,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 443 transitions, 3891 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:51,528 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:51,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:51,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:52,984 INFO L129 PetriNetUnfolder]: 786/4171 cut-off events. [2021-11-09 08:42:52,984 INFO L130 PetriNetUnfolder]: For 19201/19404 co-relation queries the response was YES. [2021-11-09 08:42:53,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15760 conditions, 4171 events. 786/4171 cut-off events. For 19201/19404 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 44151 event pairs, 244 based on Foata normal form. 1/3974 useless extension candidates. Maximal degree in co-relation 15632. Up to 1216 conditions per place. [2021-11-09 08:42:53,058 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 199 selfloop transitions, 94 changer transitions 7/478 dead transitions. [2021-11-09 08:42:53,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 478 transitions, 4965 flow [2021-11-09 08:42:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-09 08:42:53,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-09 08:42:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3701 transitions. [2021-11-09 08:42:53,066 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8432444748234222 [2021-11-09 08:42:53,066 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3701 transitions. [2021-11-09 08:42:53,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3701 transitions. [2021-11-09 08:42:53,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:53,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3701 transitions. [2021-11-09 08:42:53,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 176.23809523809524) internal successors, (3701), 21 states have internal predecessors, (3701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:53,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 209.0) internal successors, (4598), 22 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:53,085 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 209.0) internal successors, (4598), 22 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:53,085 INFO L186 Difference]: Start difference. First operand has 420 places, 443 transitions, 3891 flow. Second operand 21 states and 3701 transitions. [2021-11-09 08:42:53,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 478 transitions, 4965 flow [2021-11-09 08:42:53,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 478 transitions, 4776 flow, removed 49 selfloop flow, removed 8 redundant places. [2021-11-09 08:42:53,301 INFO L242 Difference]: Finished difference. Result has 439 places, 462 transitions, 4305 flow [2021-11-09 08:42:53,302 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3714, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4305, PETRI_PLACES=439, PETRI_TRANSITIONS=462} [2021-11-09 08:42:53,302 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 250 predicate places. [2021-11-09 08:42:53,302 INFO L470 AbstractCegarLoop]: Abstraction has has 439 places, 462 transitions, 4305 flow [2021-11-09 08:42:53,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:53,303 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:53,303 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] [2021-11-09 08:42:53,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-09 08:42:53,304 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:53,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:53,304 INFO L85 PathProgramCache]: Analyzing trace with hash -824119500, now seen corresponding path program 10 times [2021-11-09 08:42:53,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:53,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741186589] [2021-11-09 08:42:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:53,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:53,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:53,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741186589] [2021-11-09 08:42:53,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741186589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:53,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:53,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:53,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553310157] [2021-11-09 08:42:53,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:53,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:53,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:53,420 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:53,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 462 transitions, 4305 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:53,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:53,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:53,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:54,991 INFO L129 PetriNetUnfolder]: 801/4363 cut-off events. [2021-11-09 08:42:54,991 INFO L130 PetriNetUnfolder]: For 21035/21260 co-relation queries the response was YES. [2021-11-09 08:42:55,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16817 conditions, 4363 events. 801/4363 cut-off events. For 21035/21260 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 47105 event pairs, 244 based on Foata normal form. 1/4165 useless extension candidates. Maximal degree in co-relation 16685. Up to 1295 conditions per place. [2021-11-09 08:42:55,063 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 187 selfloop transitions, 131 changer transitions 7/503 dead transitions. [2021-11-09 08:42:55,063 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 503 transitions, 5556 flow [2021-11-09 08:42:55,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 08:42:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-11-09 08:42:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3526 transitions. [2021-11-09 08:42:55,071 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8435406698564594 [2021-11-09 08:42:55,071 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3526 transitions. [2021-11-09 08:42:55,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3526 transitions. [2021-11-09 08:42:55,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:55,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3526 transitions. [2021-11-09 08:42:55,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 176.3) internal successors, (3526), 20 states have internal predecessors, (3526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:55,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:55,110 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:55,111 INFO L186 Difference]: Start difference. First operand has 439 places, 462 transitions, 4305 flow. Second operand 20 states and 3526 transitions. [2021-11-09 08:42:55,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 503 transitions, 5556 flow [2021-11-09 08:42:55,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 503 transitions, 5322 flow, removed 102 selfloop flow, removed 8 redundant places. [2021-11-09 08:42:55,389 INFO L242 Difference]: Finished difference. Result has 459 places, 483 transitions, 4839 flow [2021-11-09 08:42:55,390 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4110, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4839, PETRI_PLACES=459, PETRI_TRANSITIONS=483} [2021-11-09 08:42:55,390 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 270 predicate places. [2021-11-09 08:42:55,391 INFO L470 AbstractCegarLoop]: Abstraction has has 459 places, 483 transitions, 4839 flow [2021-11-09 08:42:55,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:55,391 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:55,392 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] [2021-11-09 08:42:55,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-09 08:42:55,392 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:55,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:55,393 INFO L85 PathProgramCache]: Analyzing trace with hash -71607114, now seen corresponding path program 11 times [2021-11-09 08:42:55,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:55,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047257683] [2021-11-09 08:42:55,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:55,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:55,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:55,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047257683] [2021-11-09 08:42:55,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047257683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:55,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:55,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:55,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379781501] [2021-11-09 08:42:55,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:55,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:55,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:55,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:55,543 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:55,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 483 transitions, 4839 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:55,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:55,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:55,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:57,013 INFO L129 PetriNetUnfolder]: 818/4338 cut-off events. [2021-11-09 08:42:57,014 INFO L130 PetriNetUnfolder]: For 23588/23774 co-relation queries the response was YES. [2021-11-09 08:42:57,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17661 conditions, 4338 events. 818/4338 cut-off events. For 23588/23774 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 46697 event pairs, 216 based on Foata normal form. 1/4164 useless extension candidates. Maximal degree in co-relation 17525. Up to 922 conditions per place. [2021-11-09 08:42:57,097 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 223 selfloop transitions, 159 changer transitions 7/567 dead transitions. [2021-11-09 08:42:57,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 567 transitions, 6734 flow [2021-11-09 08:42:57,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 08:42:57,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-11-09 08:42:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4226 transitions. [2021-11-09 08:42:57,105 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8425039872408293 [2021-11-09 08:42:57,105 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4226 transitions. [2021-11-09 08:42:57,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4226 transitions. [2021-11-09 08:42:57,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:57,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4226 transitions. [2021-11-09 08:42:57,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.08333333333334) internal successors, (4226), 24 states have internal predecessors, (4226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:57,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:57,126 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:57,126 INFO L186 Difference]: Start difference. First operand has 459 places, 483 transitions, 4839 flow. Second operand 24 states and 4226 transitions. [2021-11-09 08:42:57,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 567 transitions, 6734 flow [2021-11-09 08:42:57,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 567 transitions, 6617 flow, removed 30 selfloop flow, removed 3 redundant places. [2021-11-09 08:42:57,611 INFO L242 Difference]: Finished difference. Result has 496 places, 509 transitions, 5794 flow [2021-11-09 08:42:57,612 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4739, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5794, PETRI_PLACES=496, PETRI_TRANSITIONS=509} [2021-11-09 08:42:57,612 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 307 predicate places. [2021-11-09 08:42:57,612 INFO L470 AbstractCegarLoop]: Abstraction has has 496 places, 509 transitions, 5794 flow [2021-11-09 08:42:57,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:57,613 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:57,614 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] [2021-11-09 08:42:57,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-09 08:42:57,614 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:57,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:57,615 INFO L85 PathProgramCache]: Analyzing trace with hash -107113966, now seen corresponding path program 12 times [2021-11-09 08:42:57,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:57,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939891603] [2021-11-09 08:42:57,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:57,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:57,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:57,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939891603] [2021-11-09 08:42:57,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939891603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:57,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:57,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:42:57,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99696720] [2021-11-09 08:42:57,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:42:57,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:57,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:42:57,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:42:57,740 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:42:57,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 509 transitions, 5794 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:57,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:42:57,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:42:57,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:42:59,257 INFO L129 PetriNetUnfolder]: 824/4437 cut-off events. [2021-11-09 08:42:59,258 INFO L130 PetriNetUnfolder]: For 30510/30696 co-relation queries the response was YES. [2021-11-09 08:42:59,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19359 conditions, 4437 events. 824/4437 cut-off events. For 30510/30696 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 48212 event pairs, 239 based on Foata normal form. 12/4272 useless extension candidates. Maximal degree in co-relation 19206. Up to 1327 conditions per place. [2021-11-09 08:42:59,355 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 219 selfloop transitions, 134 changer transitions 7/538 dead transitions. [2021-11-09 08:42:59,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 538 transitions, 6944 flow [2021-11-09 08:42:59,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:42:59,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:42:59,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3177 transitions. [2021-11-09 08:42:59,361 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8444976076555024 [2021-11-09 08:42:59,362 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3177 transitions. [2021-11-09 08:42:59,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3177 transitions. [2021-11-09 08:42:59,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:42:59,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3177 transitions. [2021-11-09 08:42:59,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 176.5) internal successors, (3177), 18 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:59,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:59,378 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:59,378 INFO L186 Difference]: Start difference. First operand has 496 places, 509 transitions, 5794 flow. Second operand 18 states and 3177 transitions. [2021-11-09 08:42:59,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 538 transitions, 6944 flow [2021-11-09 08:42:59,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 538 transitions, 6822 flow, removed 58 selfloop flow, removed 3 redundant places. [2021-11-09 08:42:59,919 INFO L242 Difference]: Finished difference. Result has 514 places, 522 transitions, 6283 flow [2021-11-09 08:42:59,920 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=5678, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6283, PETRI_PLACES=514, PETRI_TRANSITIONS=522} [2021-11-09 08:42:59,920 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 325 predicate places. [2021-11-09 08:42:59,921 INFO L470 AbstractCegarLoop]: Abstraction has has 514 places, 522 transitions, 6283 flow [2021-11-09 08:42:59,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:59,921 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:42:59,921 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:42:59,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-09 08:42:59,922 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:42:59,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:59,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1191612056, now seen corresponding path program 13 times [2021-11-09 08:42:59,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:59,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481072265] [2021-11-09 08:42:59,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:59,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:00,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:00,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481072265] [2021-11-09 08:43:00,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481072265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:00,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:00,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:00,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031039377] [2021-11-09 08:43:00,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:00,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:00,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:00,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:00,050 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:00,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 522 transitions, 6283 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:00,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:00,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:00,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:01,902 INFO L129 PetriNetUnfolder]: 825/4576 cut-off events. [2021-11-09 08:43:01,903 INFO L130 PetriNetUnfolder]: For 33427/33684 co-relation queries the response was YES. [2021-11-09 08:43:01,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19882 conditions, 4576 events. 825/4576 cut-off events. For 33427/33684 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 50338 event pairs, 247 based on Foata normal form. 1/4379 useless extension candidates. Maximal degree in co-relation 19725. Up to 1331 conditions per place. [2021-11-09 08:43:01,992 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 238 selfloop transitions, 120 changer transitions 7/543 dead transitions. [2021-11-09 08:43:01,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 543 transitions, 7275 flow [2021-11-09 08:43:01,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:43:01,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-09 08:43:01,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3005 transitions. [2021-11-09 08:43:01,997 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8457641429777653 [2021-11-09 08:43:01,997 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3005 transitions. [2021-11-09 08:43:01,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3005 transitions. [2021-11-09 08:43:01,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:01,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3005 transitions. [2021-11-09 08:43:02,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 176.76470588235293) internal successors, (3005), 17 states have internal predecessors, (3005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:02,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:02,010 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:02,010 INFO L186 Difference]: Start difference. First operand has 514 places, 522 transitions, 6283 flow. Second operand 17 states and 3005 transitions. [2021-11-09 08:43:02,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 543 transitions, 7275 flow [2021-11-09 08:43:02,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 543 transitions, 7116 flow, removed 45 selfloop flow, removed 6 redundant places. [2021-11-09 08:43:02,325 INFO L242 Difference]: Finished difference. Result has 527 places, 528 transitions, 6540 flow [2021-11-09 08:43:02,325 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=6130, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6540, PETRI_PLACES=527, PETRI_TRANSITIONS=528} [2021-11-09 08:43:02,326 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 338 predicate places. [2021-11-09 08:43:02,326 INFO L470 AbstractCegarLoop]: Abstraction has has 527 places, 528 transitions, 6540 flow [2021-11-09 08:43:02,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:02,326 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:02,327 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] [2021-11-09 08:43:02,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-09 08:43:02,327 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:02,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:02,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1367765618, now seen corresponding path program 14 times [2021-11-09 08:43:02,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:02,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764245365] [2021-11-09 08:43:02,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:02,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:02,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:02,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:02,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764245365] [2021-11-09 08:43:02,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764245365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:02,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:02,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:02,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332699583] [2021-11-09 08:43:02,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:02,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:02,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:02,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:02,448 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:02,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 528 transitions, 6540 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:02,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:02,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:02,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:04,150 INFO L129 PetriNetUnfolder]: 842/4593 cut-off events. [2021-11-09 08:43:04,151 INFO L130 PetriNetUnfolder]: For 36339/36525 co-relation queries the response was YES. [2021-11-09 08:43:04,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20827 conditions, 4593 events. 842/4593 cut-off events. For 36339/36525 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 50608 event pairs, 225 based on Foata normal form. 1/4414 useless extension candidates. Maximal degree in co-relation 20670. Up to 1290 conditions per place. [2021-11-09 08:43:04,221 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 292 selfloop transitions, 101 changer transitions 7/578 dead transitions. [2021-11-09 08:43:04,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 578 transitions, 8198 flow [2021-11-09 08:43:04,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:43:04,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:43:04,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3176 transitions. [2021-11-09 08:43:04,224 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8442317916002127 [2021-11-09 08:43:04,224 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3176 transitions. [2021-11-09 08:43:04,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3176 transitions. [2021-11-09 08:43:04,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:04,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3176 transitions. [2021-11-09 08:43:04,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 176.44444444444446) internal successors, (3176), 18 states have internal predecessors, (3176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:04,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:04,236 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:04,236 INFO L186 Difference]: Start difference. First operand has 527 places, 528 transitions, 6540 flow. Second operand 18 states and 3176 transitions. [2021-11-09 08:43:04,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 578 transitions, 8198 flow [2021-11-09 08:43:04,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 578 transitions, 8052 flow, removed 39 selfloop flow, removed 5 redundant places. [2021-11-09 08:43:04,569 INFO L242 Difference]: Finished difference. Result has 546 places, 559 transitions, 7367 flow [2021-11-09 08:43:04,570 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=6400, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7367, PETRI_PLACES=546, PETRI_TRANSITIONS=559} [2021-11-09 08:43:04,570 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 357 predicate places. [2021-11-09 08:43:04,570 INFO L470 AbstractCegarLoop]: Abstraction has has 546 places, 559 transitions, 7367 flow [2021-11-09 08:43:04,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:04,570 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:04,570 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:43:04,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-09 08:43:04,571 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:04,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:04,571 INFO L85 PathProgramCache]: Analyzing trace with hash -218906486, now seen corresponding path program 15 times [2021-11-09 08:43:04,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:04,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356484336] [2021-11-09 08:43:04,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:04,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:04,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:04,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356484336] [2021-11-09 08:43:04,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356484336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:04,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:04,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:04,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682838835] [2021-11-09 08:43:04,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:04,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:04,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:04,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:04,685 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:04,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 559 transitions, 7367 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:04,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:04,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:04,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:06,772 INFO L129 PetriNetUnfolder]: 857/4740 cut-off events. [2021-11-09 08:43:06,773 INFO L130 PetriNetUnfolder]: For 40781/40967 co-relation queries the response was YES. [2021-11-09 08:43:06,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21983 conditions, 4740 events. 857/4740 cut-off events. For 40781/40967 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 53045 event pairs, 228 based on Foata normal form. 1/4562 useless extension candidates. Maximal degree in co-relation 21821. Up to 1306 conditions per place. [2021-11-09 08:43:06,903 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 251 selfloop transitions, 163 changer transitions 7/599 dead transitions. [2021-11-09 08:43:06,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 599 transitions, 8837 flow [2021-11-09 08:43:06,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:43:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:43:06,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3173 transitions. [2021-11-09 08:43:06,928 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8434343434343434 [2021-11-09 08:43:06,928 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3173 transitions. [2021-11-09 08:43:06,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3173 transitions. [2021-11-09 08:43:06,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:06,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3173 transitions. [2021-11-09 08:43:06,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 176.27777777777777) internal successors, (3173), 18 states have internal predecessors, (3173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:06,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:06,939 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:06,939 INFO L186 Difference]: Start difference. First operand has 546 places, 559 transitions, 7367 flow. Second operand 18 states and 3173 transitions. [2021-11-09 08:43:06,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 599 transitions, 8837 flow [2021-11-09 08:43:07,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 599 transitions, 8547 flow, removed 145 selfloop flow, removed 2 redundant places. [2021-11-09 08:43:07,593 INFO L242 Difference]: Finished difference. Result has 566 places, 577 transitions, 7848 flow [2021-11-09 08:43:07,594 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=7119, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7848, PETRI_PLACES=566, PETRI_TRANSITIONS=577} [2021-11-09 08:43:07,594 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 377 predicate places. [2021-11-09 08:43:07,594 INFO L470 AbstractCegarLoop]: Abstraction has has 566 places, 577 transitions, 7848 flow [2021-11-09 08:43:07,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:07,595 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:07,595 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] [2021-11-09 08:43:07,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-09 08:43:07,596 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:07,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:07,597 INFO L85 PathProgramCache]: Analyzing trace with hash -335568888, now seen corresponding path program 16 times [2021-11-09 08:43:07,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:07,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620823462] [2021-11-09 08:43:07,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:07,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:07,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:07,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:07,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620823462] [2021-11-09 08:43:07,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620823462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:07,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:07,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:07,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204282128] [2021-11-09 08:43:07,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:07,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:07,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:07,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:07,726 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:07,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 577 transitions, 7848 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:07,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:07,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:07,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:09,721 INFO L129 PetriNetUnfolder]: 866/4833 cut-off events. [2021-11-09 08:43:09,721 INFO L130 PetriNetUnfolder]: For 42071/42257 co-relation queries the response was YES. [2021-11-09 08:43:09,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22721 conditions, 4833 events. 866/4833 cut-off events. For 42071/42257 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 54533 event pairs, 225 based on Foata normal form. 1/4655 useless extension candidates. Maximal degree in co-relation 22553. Up to 1310 conditions per place. [2021-11-09 08:43:09,843 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 259 selfloop transitions, 170 changer transitions 7/614 dead transitions. [2021-11-09 08:43:09,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 614 transitions, 9347 flow [2021-11-09 08:43:09,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-09 08:43:09,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-11-09 08:43:09,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3871 transitions. [2021-11-09 08:43:09,850 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8418877772944758 [2021-11-09 08:43:09,850 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3871 transitions. [2021-11-09 08:43:09,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3871 transitions. [2021-11-09 08:43:09,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:09,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3871 transitions. [2021-11-09 08:43:09,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 175.95454545454547) internal successors, (3871), 22 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:09,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 209.0) internal successors, (4807), 23 states have internal predecessors, (4807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:09,866 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 209.0) internal successors, (4807), 23 states have internal predecessors, (4807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:09,866 INFO L186 Difference]: Start difference. First operand has 566 places, 577 transitions, 7848 flow. Second operand 22 states and 3871 transitions. [2021-11-09 08:43:09,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 585 places, 614 transitions, 9347 flow [2021-11-09 08:43:10,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 614 transitions, 9196 flow, removed 64 selfloop flow, removed 6 redundant places. [2021-11-09 08:43:10,317 INFO L242 Difference]: Finished difference. Result has 590 places, 595 transitions, 8583 flow [2021-11-09 08:43:10,319 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=7708, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8583, PETRI_PLACES=590, PETRI_TRANSITIONS=595} [2021-11-09 08:43:10,319 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 401 predicate places. [2021-11-09 08:43:10,319 INFO L470 AbstractCegarLoop]: Abstraction has has 590 places, 595 transitions, 8583 flow [2021-11-09 08:43:10,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:10,320 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:10,320 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] [2021-11-09 08:43:10,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-09 08:43:10,320 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:10,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:10,321 INFO L85 PathProgramCache]: Analyzing trace with hash 770292018, now seen corresponding path program 17 times [2021-11-09 08:43:10,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:10,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182404652] [2021-11-09 08:43:10,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:10,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:10,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:10,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182404652] [2021-11-09 08:43:10,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182404652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:10,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:10,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:10,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257997949] [2021-11-09 08:43:10,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:10,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:10,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:10,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:10,451 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:10,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 595 transitions, 8583 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:10,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:10,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:10,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:12,691 INFO L129 PetriNetUnfolder]: 875/4929 cut-off events. [2021-11-09 08:43:12,692 INFO L130 PetriNetUnfolder]: For 48269/48455 co-relation queries the response was YES. [2021-11-09 08:43:12,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23983 conditions, 4929 events. 875/4929 cut-off events. For 48269/48455 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 56064 event pairs, 225 based on Foata normal form. 1/4750 useless extension candidates. Maximal degree in co-relation 23809. Up to 1365 conditions per place. [2021-11-09 08:43:12,813 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 313 selfloop transitions, 130 changer transitions 7/628 dead transitions. [2021-11-09 08:43:12,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 604 places, 628 transitions, 10084 flow [2021-11-09 08:43:12,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:43:12,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-09 08:43:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3002 transitions. [2021-11-09 08:43:12,819 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8449197860962567 [2021-11-09 08:43:12,819 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3002 transitions. [2021-11-09 08:43:12,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3002 transitions. [2021-11-09 08:43:12,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:12,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3002 transitions. [2021-11-09 08:43:12,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 176.58823529411765) internal successors, (3002), 17 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:12,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:12,833 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:12,834 INFO L186 Difference]: Start difference. First operand has 590 places, 595 transitions, 8583 flow. Second operand 17 states and 3002 transitions. [2021-11-09 08:43:12,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 604 places, 628 transitions, 10084 flow [2021-11-09 08:43:13,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 628 transitions, 9750 flow, removed 76 selfloop flow, removed 9 redundant places. [2021-11-09 08:43:13,359 INFO L242 Difference]: Finished difference. Result has 601 places, 611 transitions, 8945 flow [2021-11-09 08:43:13,360 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=8255, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=8945, PETRI_PLACES=601, PETRI_TRANSITIONS=611} [2021-11-09 08:43:13,360 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 412 predicate places. [2021-11-09 08:43:13,361 INFO L470 AbstractCegarLoop]: Abstraction has has 601 places, 611 transitions, 8945 flow [2021-11-09 08:43:13,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:13,361 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:13,361 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] [2021-11-09 08:43:13,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-09 08:43:13,361 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:13,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:13,362 INFO L85 PathProgramCache]: Analyzing trace with hash 959166474, now seen corresponding path program 18 times [2021-11-09 08:43:13,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:13,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124316112] [2021-11-09 08:43:13,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:13,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:13,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:13,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124316112] [2021-11-09 08:43:13,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124316112] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:13,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:13,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:13,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430297392] [2021-11-09 08:43:13,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:13,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:13,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:13,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:13,505 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:13,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 611 transitions, 8945 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:13,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:13,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:13,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:15,793 INFO L129 PetriNetUnfolder]: 890/5025 cut-off events. [2021-11-09 08:43:15,793 INFO L130 PetriNetUnfolder]: For 48024/48210 co-relation queries the response was YES. [2021-11-09 08:43:15,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24883 conditions, 5025 events. 890/5025 cut-off events. For 48024/48210 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 57488 event pairs, 225 based on Foata normal form. 1/4846 useless extension candidates. Maximal degree in co-relation 24709. Up to 1393 conditions per place. [2021-11-09 08:43:15,952 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 336 selfloop transitions, 125 changer transitions 7/646 dead transitions. [2021-11-09 08:43:15,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 646 transitions, 10541 flow [2021-11-09 08:43:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:43:15,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:43:15,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3178 transitions. [2021-11-09 08:43:15,956 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8447634237107922 [2021-11-09 08:43:15,956 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3178 transitions. [2021-11-09 08:43:15,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3178 transitions. [2021-11-09 08:43:15,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:15,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3178 transitions. [2021-11-09 08:43:15,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 176.55555555555554) internal successors, (3178), 18 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:15,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:15,968 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:15,968 INFO L186 Difference]: Start difference. First operand has 601 places, 611 transitions, 8945 flow. Second operand 18 states and 3178 transitions. [2021-11-09 08:43:15,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 646 transitions, 10541 flow [2021-11-09 08:43:16,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 646 transitions, 10399 flow, removed 71 selfloop flow, removed 2 redundant places. [2021-11-09 08:43:16,516 INFO L242 Difference]: Finished difference. Result has 621 places, 629 transitions, 9549 flow [2021-11-09 08:43:16,516 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=8805, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=9549, PETRI_PLACES=621, PETRI_TRANSITIONS=629} [2021-11-09 08:43:16,517 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 432 predicate places. [2021-11-09 08:43:16,517 INFO L470 AbstractCegarLoop]: Abstraction has has 621 places, 629 transitions, 9549 flow [2021-11-09 08:43:16,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:16,517 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:16,517 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] [2021-11-09 08:43:16,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-09 08:43:16,518 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:16,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:16,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1535067544, now seen corresponding path program 19 times [2021-11-09 08:43:16,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:16,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710026392] [2021-11-09 08:43:16,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:16,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:16,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:16,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:16,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710026392] [2021-11-09 08:43:16,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710026392] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:16,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:16,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:16,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227934496] [2021-11-09 08:43:16,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:16,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:16,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:16,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:16,631 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:16,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 629 transitions, 9549 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:16,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:16,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:16,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:18,972 INFO L129 PetriNetUnfolder]: 890/5133 cut-off events. [2021-11-09 08:43:18,973 INFO L130 PetriNetUnfolder]: For 53058/53244 co-relation queries the response was YES. [2021-11-09 08:43:19,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25567 conditions, 5133 events. 890/5133 cut-off events. For 53058/53244 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 59411 event pairs, 225 based on Foata normal form. 1/4954 useless extension candidates. Maximal degree in co-relation 25387. Up to 1346 conditions per place. [2021-11-09 08:43:19,087 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 335 selfloop transitions, 139 changer transitions 7/659 dead transitions. [2021-11-09 08:43:19,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 659 transitions, 11129 flow [2021-11-09 08:43:19,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-09 08:43:19,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-09 08:43:19,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3700 transitions. [2021-11-09 08:43:19,091 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8430166324903167 [2021-11-09 08:43:19,092 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3700 transitions. [2021-11-09 08:43:19,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3700 transitions. [2021-11-09 08:43:19,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:19,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3700 transitions. [2021-11-09 08:43:19,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 176.1904761904762) internal successors, (3700), 21 states have internal predecessors, (3700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:19,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 209.0) internal successors, (4598), 22 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:19,104 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 209.0) internal successors, (4598), 22 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:19,104 INFO L186 Difference]: Start difference. First operand has 621 places, 629 transitions, 9549 flow. Second operand 21 states and 3700 transitions. [2021-11-09 08:43:19,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 659 transitions, 11129 flow [2021-11-09 08:43:19,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 637 places, 659 transitions, 10979 flow, removed 75 selfloop flow, removed 2 redundant places. [2021-11-09 08:43:19,637 INFO L242 Difference]: Finished difference. Result has 645 places, 645 transitions, 10239 flow [2021-11-09 08:43:19,638 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=9401, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=10239, PETRI_PLACES=645, PETRI_TRANSITIONS=645} [2021-11-09 08:43:19,639 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 456 predicate places. [2021-11-09 08:43:19,639 INFO L470 AbstractCegarLoop]: Abstraction has has 645 places, 645 transitions, 10239 flow [2021-11-09 08:43:19,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:19,639 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:19,639 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] [2021-11-09 08:43:19,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-09 08:43:19,640 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:19,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:19,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1766592340, now seen corresponding path program 20 times [2021-11-09 08:43:19,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:19,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171567784] [2021-11-09 08:43:19,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:19,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:19,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:19,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:19,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171567784] [2021-11-09 08:43:19,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171567784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:19,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:19,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:19,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716231475] [2021-11-09 08:43:19,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:19,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:19,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:19,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:19,764 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:19,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 645 transitions, 10239 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:19,766 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:19,766 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:19,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:22,097 INFO L129 PetriNetUnfolder]: 890/5155 cut-off events. [2021-11-09 08:43:22,098 INFO L130 PetriNetUnfolder]: For 54964/55150 co-relation queries the response was YES. [2021-11-09 08:43:22,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25993 conditions, 5155 events. 890/5155 cut-off events. For 54964/55150 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 59841 event pairs, 225 based on Foata normal form. 1/4976 useless extension candidates. Maximal degree in co-relation 25810. Up to 1411 conditions per place. [2021-11-09 08:43:22,561 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 320 selfloop transitions, 162 changer transitions 7/667 dead transitions. [2021-11-09 08:43:22,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 667 transitions, 11570 flow [2021-11-09 08:43:22,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 08:43:22,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-11-09 08:43:22,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3525 transitions. [2021-11-09 08:43:22,579 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8433014354066986 [2021-11-09 08:43:22,579 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3525 transitions. [2021-11-09 08:43:22,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3525 transitions. [2021-11-09 08:43:22,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:22,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3525 transitions. [2021-11-09 08:43:22,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 176.25) internal successors, (3525), 20 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:22,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:22,596 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:22,596 INFO L186 Difference]: Start difference. First operand has 645 places, 645 transitions, 10239 flow. Second operand 20 states and 3525 transitions. [2021-11-09 08:43:22,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 667 transitions, 11570 flow [2021-11-09 08:43:23,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 650 places, 667 transitions, 11309 flow, removed 99 selfloop flow, removed 12 redundant places. [2021-11-09 08:43:23,176 INFO L242 Difference]: Finished difference. Result has 659 places, 654 transitions, 10639 flow [2021-11-09 08:43:23,177 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=9987, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10639, PETRI_PLACES=659, PETRI_TRANSITIONS=654} [2021-11-09 08:43:23,178 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 470 predicate places. [2021-11-09 08:43:23,178 INFO L470 AbstractCegarLoop]: Abstraction has has 659 places, 654 transitions, 10639 flow [2021-11-09 08:43:23,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:23,178 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:23,178 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] [2021-11-09 08:43:23,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-09 08:43:23,179 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:23,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:23,179 INFO L85 PathProgramCache]: Analyzing trace with hash -910396676, now seen corresponding path program 1 times [2021-11-09 08:43:23,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:23,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555594158] [2021-11-09 08:43:23,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:23,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:23,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:23,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555594158] [2021-11-09 08:43:23,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555594158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:23,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:23,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:43:23,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913810639] [2021-11-09 08:43:23,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:43:23,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:23,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:43:23,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:43:23,211 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 209 [2021-11-09 08:43:23,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 659 places, 654 transitions, 10639 flow. Second operand has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:23,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:23,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 209 [2021-11-09 08:43:23,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:24,827 INFO L129 PetriNetUnfolder]: 628/4956 cut-off events. [2021-11-09 08:43:24,827 INFO L130 PetriNetUnfolder]: For 51084/51605 co-relation queries the response was YES. [2021-11-09 08:43:24,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22209 conditions, 4956 events. 628/4956 cut-off events. For 51084/51605 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 60818 event pairs, 33 based on Foata normal form. 15/4805 useless extension candidates. Maximal degree in co-relation 22034. Up to 432 conditions per place. [2021-11-09 08:43:24,923 INFO L132 encePairwiseOnDemand]: 205/209 looper letters, 6 selfloop transitions, 2 changer transitions 421/656 dead transitions. [2021-11-09 08:43:24,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 659 places, 656 transitions, 10659 flow [2021-11-09 08:43:24,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:43:24,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:43:24,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 592 transitions. [2021-11-09 08:43:24,924 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9441786283891547 [2021-11-09 08:43:24,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 592 transitions. [2021-11-09 08:43:24,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 592 transitions. [2021-11-09 08:43:24,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:24,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 592 transitions. [2021-11-09 08:43:24,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:24,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:24,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:24,927 INFO L186 Difference]: Start difference. First operand has 659 places, 654 transitions, 10639 flow. Second operand 3 states and 592 transitions. [2021-11-09 08:43:24,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 659 places, 656 transitions, 10659 flow [2021-11-09 08:43:25,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 654 places, 656 transitions, 10457 flow, removed 59 selfloop flow, removed 5 redundant places. [2021-11-09 08:43:25,410 INFO L242 Difference]: Finished difference. Result has 656 places, 235 transitions, 1142 flow [2021-11-09 08:43:25,411 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=10437, PETRI_DIFFERENCE_MINUEND_PLACES=652, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1142, PETRI_PLACES=656, PETRI_TRANSITIONS=235} [2021-11-09 08:43:25,411 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 467 predicate places. [2021-11-09 08:43:25,412 INFO L470 AbstractCegarLoop]: Abstraction has has 656 places, 235 transitions, 1142 flow [2021-11-09 08:43:25,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:25,412 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:25,412 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] [2021-11-09 08:43:25,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-09 08:43:25,412 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:25,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash -909720564, now seen corresponding path program 2 times [2021-11-09 08:43:25,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:25,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956821497] [2021-11-09 08:43:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:25,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:25,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:25,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:25,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956821497] [2021-11-09 08:43:25,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956821497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:25,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:25,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:43:25,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601104680] [2021-11-09 08:43:25,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:43:25,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:25,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:43:25,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:43:25,442 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 209 [2021-11-09 08:43:25,443 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 235 transitions, 1142 flow. Second operand has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:25,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:25,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 209 [2021-11-09 08:43:25,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:25,740 INFO L129 PetriNetUnfolder]: 108/1312 cut-off events. [2021-11-09 08:43:25,740 INFO L130 PetriNetUnfolder]: For 6457/6655 co-relation queries the response was YES. [2021-11-09 08:43:25,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3722 conditions, 1312 events. 108/1312 cut-off events. For 6457/6655 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 11207 event pairs, 21 based on Foata normal form. 14/1233 useless extension candidates. Maximal degree in co-relation 3568. Up to 151 conditions per place. [2021-11-09 08:43:25,766 INFO L132 encePairwiseOnDemand]: 203/209 looper letters, 4 selfloop transitions, 2 changer transitions 37/237 dead transitions. [2021-11-09 08:43:25,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 237 transitions, 1170 flow [2021-11-09 08:43:25,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:43:25,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:43:25,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 592 transitions. [2021-11-09 08:43:25,767 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9441786283891547 [2021-11-09 08:43:25,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 592 transitions. [2021-11-09 08:43:25,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 592 transitions. [2021-11-09 08:43:25,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:25,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 592 transitions. [2021-11-09 08:43:25,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:25,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:25,769 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:25,769 INFO L186 Difference]: Start difference. First operand has 656 places, 235 transitions, 1142 flow. Second operand 3 states and 592 transitions. [2021-11-09 08:43:25,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 237 transitions, 1170 flow [2021-11-09 08:43:25,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 237 transitions, 846 flow, removed 115 selfloop flow, removed 109 redundant places. [2021-11-09 08:43:25,816 INFO L242 Difference]: Finished difference. Result has 278 places, 200 transitions, 629 flow [2021-11-09 08:43:25,816 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=629, PETRI_PLACES=278, PETRI_TRANSITIONS=200} [2021-11-09 08:43:25,817 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 89 predicate places. [2021-11-09 08:43:25,817 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 200 transitions, 629 flow [2021-11-09 08:43:25,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:25,817 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:25,817 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] [2021-11-09 08:43:25,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-09 08:43:25,817 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:25,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:25,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1560871460, now seen corresponding path program 1 times [2021-11-09 08:43:25,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:25,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685891209] [2021-11-09 08:43:25,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:25,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:25,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:25,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:25,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685891209] [2021-11-09 08:43:25,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685891209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:25,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:25,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 08:43:25,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849109336] [2021-11-09 08:43:25,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:43:25,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:25,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:43:25,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:43:25,885 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2021-11-09 08:43:25,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 200 transitions, 629 flow. Second operand has 7 states, 7 states have (on average 183.14285714285714) internal successors, (1282), 7 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:25,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:25,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2021-11-09 08:43:25,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:26,100 INFO L129 PetriNetUnfolder]: 63/744 cut-off events. [2021-11-09 08:43:26,101 INFO L130 PetriNetUnfolder]: For 366/407 co-relation queries the response was YES. [2021-11-09 08:43:26,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 744 events. 63/744 cut-off events. For 366/407 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5049 event pairs, 12 based on Foata normal form. 8/705 useless extension candidates. Maximal degree in co-relation 1437. Up to 88 conditions per place. [2021-11-09 08:43:26,114 INFO L132 encePairwiseOnDemand]: 201/209 looper letters, 15 selfloop transitions, 0 changer transitions 11/207 dead transitions. [2021-11-09 08:43:26,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 207 transitions, 695 flow [2021-11-09 08:43:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:43:26,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-09 08:43:26,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1653 transitions. [2021-11-09 08:43:26,117 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2021-11-09 08:43:26,117 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1653 transitions. [2021-11-09 08:43:26,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1653 transitions. [2021-11-09 08:43:26,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:26,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1653 transitions. [2021-11-09 08:43:26,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 183.66666666666666) internal successors, (1653), 9 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:26,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 209.0) internal successors, (2090), 10 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:26,123 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 209.0) internal successors, (2090), 10 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:26,123 INFO L186 Difference]: Start difference. First operand has 278 places, 200 transitions, 629 flow. Second operand 9 states and 1653 transitions. [2021-11-09 08:43:26,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 207 transitions, 695 flow [2021-11-09 08:43:26,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 207 transitions, 647 flow, removed 16 selfloop flow, removed 17 redundant places. [2021-11-09 08:43:26,134 INFO L242 Difference]: Finished difference. Result has 254 places, 196 transitions, 585 flow [2021-11-09 08:43:26,134 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=585, PETRI_PLACES=254, PETRI_TRANSITIONS=196} [2021-11-09 08:43:26,134 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 65 predicate places. [2021-11-09 08:43:26,135 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 196 transitions, 585 flow [2021-11-09 08:43:26,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 183.14285714285714) internal successors, (1282), 7 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:26,135 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:26,136 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] [2021-11-09 08:43:26,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-09 08:43:26,136 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:26,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:26,136 INFO L85 PathProgramCache]: Analyzing trace with hash -246064636, now seen corresponding path program 1 times [2021-11-09 08:43:26,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:26,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3529511] [2021-11-09 08:43:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:26,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:26,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:26,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3529511] [2021-11-09 08:43:26,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3529511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:26,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:26,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:26,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742118207] [2021-11-09 08:43:26,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:26,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:26,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:26,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:26,266 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:26,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 196 transitions, 585 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:26,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:26,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:26,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:27,020 INFO L129 PetriNetUnfolder]: 318/1772 cut-off events. [2021-11-09 08:43:27,020 INFO L130 PetriNetUnfolder]: For 399/429 co-relation queries the response was YES. [2021-11-09 08:43:27,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3591 conditions, 1772 events. 318/1772 cut-off events. For 399/429 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 14060 event pairs, 166 based on Foata normal form. 1/1666 useless extension candidates. Maximal degree in co-relation 3532. Up to 493 conditions per place. [2021-11-09 08:43:27,054 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 54 selfloop transitions, 24 changer transitions 7/245 dead transitions. [2021-11-09 08:43:27,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 245 transitions, 953 flow [2021-11-09 08:43:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-09 08:43:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-09 08:43:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2823 transitions. [2021-11-09 08:43:27,058 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8441985645933014 [2021-11-09 08:43:27,058 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2823 transitions. [2021-11-09 08:43:27,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2823 transitions. [2021-11-09 08:43:27,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:27,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2823 transitions. [2021-11-09 08:43:27,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 176.4375) internal successors, (2823), 16 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:27,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 209.0) internal successors, (3553), 17 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:27,063 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 209.0) internal successors, (3553), 17 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:27,063 INFO L186 Difference]: Start difference. First operand has 254 places, 196 transitions, 585 flow. Second operand 16 states and 2823 transitions. [2021-11-09 08:43:27,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 245 transitions, 953 flow [2021-11-09 08:43:27,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 245 transitions, 930 flow, removed 10 selfloop flow, removed 8 redundant places. [2021-11-09 08:43:27,071 INFO L242 Difference]: Finished difference. Result has 264 places, 220 transitions, 793 flow [2021-11-09 08:43:27,071 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=793, PETRI_PLACES=264, PETRI_TRANSITIONS=220} [2021-11-09 08:43:27,072 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 75 predicate places. [2021-11-09 08:43:27,072 INFO L470 AbstractCegarLoop]: Abstraction has has 264 places, 220 transitions, 793 flow [2021-11-09 08:43:27,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:27,072 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:27,073 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:43:27,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-09 08:43:27,073 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:27,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:27,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1782220422, now seen corresponding path program 2 times [2021-11-09 08:43:27,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:27,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121285716] [2021-11-09 08:43:27,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:27,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:27,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:27,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:27,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121285716] [2021-11-09 08:43:27,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121285716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:27,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:27,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:27,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150084164] [2021-11-09 08:43:27,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:27,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:27,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:27,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:27,195 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:27,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 220 transitions, 793 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:27,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:27,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:27,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:27,756 INFO L129 PetriNetUnfolder]: 330/1667 cut-off events. [2021-11-09 08:43:27,757 INFO L130 PetriNetUnfolder]: For 1631/1670 co-relation queries the response was YES. [2021-11-09 08:43:27,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4424 conditions, 1667 events. 330/1667 cut-off events. For 1631/1670 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 13394 event pairs, 108 based on Foata normal form. 11/1598 useless extension candidates. Maximal degree in co-relation 4360. Up to 349 conditions per place. [2021-11-09 08:43:27,776 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 104 selfloop transitions, 41 changer transitions 7/312 dead transitions. [2021-11-09 08:43:27,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 312 transitions, 1630 flow [2021-11-09 08:43:27,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 08:43:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-11-09 08:43:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4230 transitions. [2021-11-09 08:43:27,781 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8433014354066986 [2021-11-09 08:43:27,781 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4230 transitions. [2021-11-09 08:43:27,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4230 transitions. [2021-11-09 08:43:27,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:27,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4230 transitions. [2021-11-09 08:43:27,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.25) internal successors, (4230), 24 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:27,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:27,793 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:27,793 INFO L186 Difference]: Start difference. First operand has 264 places, 220 transitions, 793 flow. Second operand 24 states and 4230 transitions. [2021-11-09 08:43:27,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 312 transitions, 1630 flow [2021-11-09 08:43:27,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 312 transitions, 1524 flow, removed 53 selfloop flow, removed 2 redundant places. [2021-11-09 08:43:27,816 INFO L242 Difference]: Finished difference. Result has 303 places, 250 transitions, 1123 flow [2021-11-09 08:43:27,817 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1123, PETRI_PLACES=303, PETRI_TRANSITIONS=250} [2021-11-09 08:43:27,817 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 114 predicate places. [2021-11-09 08:43:27,817 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 250 transitions, 1123 flow [2021-11-09 08:43:27,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:27,818 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:27,818 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] [2021-11-09 08:43:27,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-09 08:43:27,819 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:27,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash -460110010, now seen corresponding path program 3 times [2021-11-09 08:43:27,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:27,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139856023] [2021-11-09 08:43:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:27,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:27,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:27,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139856023] [2021-11-09 08:43:27,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139856023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:27,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:27,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:27,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740754019] [2021-11-09 08:43:27,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:27,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:27,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:27,943 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:27,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 250 transitions, 1123 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:27,944 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:27,944 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:27,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:28,468 INFO L129 PetriNetUnfolder]: 411/1916 cut-off events. [2021-11-09 08:43:28,468 INFO L130 PetriNetUnfolder]: For 5151/5197 co-relation queries the response was YES. [2021-11-09 08:43:28,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6421 conditions, 1916 events. 411/1916 cut-off events. For 5151/5197 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 15846 event pairs, 164 based on Foata normal form. 7/1832 useless extension candidates. Maximal degree in co-relation 6338. Up to 488 conditions per place. [2021-11-09 08:43:28,497 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 98 selfloop transitions, 44 changer transitions 7/309 dead transitions. [2021-11-09 08:43:28,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 309 transitions, 1966 flow [2021-11-09 08:43:28,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:43:28,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-09 08:43:28,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3002 transitions. [2021-11-09 08:43:28,500 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8449197860962567 [2021-11-09 08:43:28,500 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3002 transitions. [2021-11-09 08:43:28,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3002 transitions. [2021-11-09 08:43:28,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:28,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3002 transitions. [2021-11-09 08:43:28,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 176.58823529411765) internal successors, (3002), 17 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:28,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:28,507 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:28,507 INFO L186 Difference]: Start difference. First operand has 303 places, 250 transitions, 1123 flow. Second operand 17 states and 3002 transitions. [2021-11-09 08:43:28,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 309 transitions, 1966 flow [2021-11-09 08:43:28,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 309 transitions, 1884 flow, removed 41 selfloop flow, removed 2 redundant places. [2021-11-09 08:43:28,554 INFO L242 Difference]: Finished difference. Result has 327 places, 277 transitions, 1533 flow [2021-11-09 08:43:28,554 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1043, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1533, PETRI_PLACES=327, PETRI_TRANSITIONS=277} [2021-11-09 08:43:28,555 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 138 predicate places. [2021-11-09 08:43:28,555 INFO L470 AbstractCegarLoop]: Abstraction has has 327 places, 277 transitions, 1533 flow [2021-11-09 08:43:28,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:28,555 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:28,556 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] [2021-11-09 08:43:28,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-09 08:43:28,556 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:28,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:28,557 INFO L85 PathProgramCache]: Analyzing trace with hash -183445762, now seen corresponding path program 4 times [2021-11-09 08:43:28,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:28,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934026740] [2021-11-09 08:43:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:28,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:28,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:28,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934026740] [2021-11-09 08:43:28,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934026740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:28,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:28,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:28,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534221039] [2021-11-09 08:43:28,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:28,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:28,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:28,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:28,671 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:28,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 277 transitions, 1533 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:28,673 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:28,673 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:28,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:29,526 INFO L129 PetriNetUnfolder]: 425/2062 cut-off events. [2021-11-09 08:43:29,526 INFO L130 PetriNetUnfolder]: For 8663/8710 co-relation queries the response was YES. [2021-11-09 08:43:29,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7565 conditions, 2062 events. 425/2062 cut-off events. For 8663/8710 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 17719 event pairs, 169 based on Foata normal form. 7/1969 useless extension candidates. Maximal degree in co-relation 7471. Up to 565 conditions per place. [2021-11-09 08:43:29,563 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 115 selfloop transitions, 51 changer transitions 7/333 dead transitions. [2021-11-09 08:43:29,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 333 transitions, 2569 flow [2021-11-09 08:43:29,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 08:43:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-11-09 08:43:29,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3523 transitions. [2021-11-09 08:43:29,567 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.842822966507177 [2021-11-09 08:43:29,567 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3523 transitions. [2021-11-09 08:43:29,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3523 transitions. [2021-11-09 08:43:29,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:29,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3523 transitions. [2021-11-09 08:43:29,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 176.15) internal successors, (3523), 20 states have internal predecessors, (3523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:29,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:29,575 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:29,576 INFO L186 Difference]: Start difference. First operand has 327 places, 277 transitions, 1533 flow. Second operand 20 states and 3523 transitions. [2021-11-09 08:43:29,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 333 transitions, 2569 flow [2021-11-09 08:43:29,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 333 transitions, 2363 flow, removed 103 selfloop flow, removed 2 redundant places. [2021-11-09 08:43:29,634 INFO L242 Difference]: Finished difference. Result has 357 places, 311 transitions, 2050 flow [2021-11-09 08:43:29,634 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1387, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2050, PETRI_PLACES=357, PETRI_TRANSITIONS=311} [2021-11-09 08:43:29,635 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 168 predicate places. [2021-11-09 08:43:29,635 INFO L470 AbstractCegarLoop]: Abstraction has has 357 places, 311 transitions, 2050 flow [2021-11-09 08:43:29,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:29,636 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:29,636 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] [2021-11-09 08:43:29,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-09 08:43:29,636 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:29,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:29,637 INFO L85 PathProgramCache]: Analyzing trace with hash 662069194, now seen corresponding path program 5 times [2021-11-09 08:43:29,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:29,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033055365] [2021-11-09 08:43:29,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:29,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:29,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:29,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:29,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033055365] [2021-11-09 08:43:29,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033055365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:29,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:29,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:29,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952960463] [2021-11-09 08:43:29,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:29,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:29,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:29,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:29,772 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:29,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 311 transitions, 2050 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:29,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:29,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:29,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:30,758 INFO L129 PetriNetUnfolder]: 446/2206 cut-off events. [2021-11-09 08:43:30,758 INFO L130 PetriNetUnfolder]: For 11270/11329 co-relation queries the response was YES. [2021-11-09 08:43:30,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8548 conditions, 2206 events. 446/2206 cut-off events. For 11270/11329 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 19619 event pairs, 154 based on Foata normal form. 7/2115 useless extension candidates. Maximal degree in co-relation 8440. Up to 450 conditions per place. [2021-11-09 08:43:30,800 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 123 selfloop transitions, 93 changer transitions 7/383 dead transitions. [2021-11-09 08:43:30,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 383 transitions, 3361 flow [2021-11-09 08:43:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 08:43:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-11-09 08:43:30,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4220 transitions. [2021-11-09 08:43:30,805 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8413078149920256 [2021-11-09 08:43:30,805 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4220 transitions. [2021-11-09 08:43:30,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4220 transitions. [2021-11-09 08:43:30,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:30,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4220 transitions. [2021-11-09 08:43:30,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 175.83333333333334) internal successors, (4220), 24 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:30,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:30,815 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:30,815 INFO L186 Difference]: Start difference. First operand has 357 places, 311 transitions, 2050 flow. Second operand 24 states and 4220 transitions. [2021-11-09 08:43:30,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 383 transitions, 3361 flow [2021-11-09 08:43:30,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 383 transitions, 2987 flow, removed 187 selfloop flow, removed 2 redundant places. [2021-11-09 08:43:30,900 INFO L242 Difference]: Finished difference. Result has 395 places, 337 transitions, 2483 flow [2021-11-09 08:43:30,900 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1812, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2483, PETRI_PLACES=395, PETRI_TRANSITIONS=337} [2021-11-09 08:43:30,901 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 206 predicate places. [2021-11-09 08:43:30,901 INFO L470 AbstractCegarLoop]: Abstraction has has 395 places, 337 transitions, 2483 flow [2021-11-09 08:43:30,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:30,901 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:30,901 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] [2021-11-09 08:43:30,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-09 08:43:30,902 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:30,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:30,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1865285042, now seen corresponding path program 6 times [2021-11-09 08:43:30,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:30,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601320172] [2021-11-09 08:43:30,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:30,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:31,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:31,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:31,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601320172] [2021-11-09 08:43:31,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601320172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:31,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:31,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:31,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708190575] [2021-11-09 08:43:31,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:31,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:31,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:31,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:31,028 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:31,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 337 transitions, 2483 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:31,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:31,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:31,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:31,967 INFO L129 PetriNetUnfolder]: 497/2519 cut-off events. [2021-11-09 08:43:31,967 INFO L130 PetriNetUnfolder]: For 15092/15179 co-relation queries the response was YES. [2021-11-09 08:43:32,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10263 conditions, 2519 events. 497/2519 cut-off events. For 15092/15179 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 23458 event pairs, 115 based on Foata normal form. 22/2438 useless extension candidates. Maximal degree in co-relation 10137. Up to 577 conditions per place. [2021-11-09 08:43:32,011 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 155 selfloop transitions, 86 changer transitions 7/408 dead transitions. [2021-11-09 08:43:32,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 408 transitions, 3967 flow [2021-11-09 08:43:32,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-09 08:43:32,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-11-09 08:43:32,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3872 transitions. [2021-11-09 08:43:32,014 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2021-11-09 08:43:32,014 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3872 transitions. [2021-11-09 08:43:32,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3872 transitions. [2021-11-09 08:43:32,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:32,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3872 transitions. [2021-11-09 08:43:32,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 176.0) internal successors, (3872), 22 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:32,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 209.0) internal successors, (4807), 23 states have internal predecessors, (4807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:32,021 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 209.0) internal successors, (4807), 23 states have internal predecessors, (4807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:32,021 INFO L186 Difference]: Start difference. First operand has 395 places, 337 transitions, 2483 flow. Second operand 22 states and 3872 transitions. [2021-11-09 08:43:32,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 408 transitions, 3967 flow [2021-11-09 08:43:32,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 408 transitions, 3909 flow, removed 26 selfloop flow, removed 3 redundant places. [2021-11-09 08:43:32,104 INFO L242 Difference]: Finished difference. Result has 425 places, 368 transitions, 3230 flow [2021-11-09 08:43:32,104 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2434, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3230, PETRI_PLACES=425, PETRI_TRANSITIONS=368} [2021-11-09 08:43:32,104 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 236 predicate places. [2021-11-09 08:43:32,104 INFO L470 AbstractCegarLoop]: Abstraction has has 425 places, 368 transitions, 3230 flow [2021-11-09 08:43:32,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:32,105 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:32,105 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] [2021-11-09 08:43:32,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-09 08:43:32,105 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:32,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:32,105 INFO L85 PathProgramCache]: Analyzing trace with hash -382438418, now seen corresponding path program 7 times [2021-11-09 08:43:32,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:32,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617285075] [2021-11-09 08:43:32,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:32,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:32,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:32,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617285075] [2021-11-09 08:43:32,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617285075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:32,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:32,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:32,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323874278] [2021-11-09 08:43:32,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:32,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:32,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:32,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:32,224 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:32,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 368 transitions, 3230 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:32,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:32,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:32,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:33,417 INFO L129 PetriNetUnfolder]: 512/2573 cut-off events. [2021-11-09 08:43:33,418 INFO L130 PetriNetUnfolder]: For 21321/21401 co-relation queries the response was YES. [2021-11-09 08:43:33,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11619 conditions, 2573 events. 512/2573 cut-off events. For 21321/21401 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 24218 event pairs, 135 based on Foata normal form. 24/2492 useless extension candidates. Maximal degree in co-relation 11481. Up to 579 conditions per place. [2021-11-09 08:43:33,481 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 176 selfloop transitions, 80 changer transitions 7/423 dead transitions. [2021-11-09 08:43:33,482 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 423 transitions, 4678 flow [2021-11-09 08:43:33,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-09 08:43:33,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-09 08:43:33,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3700 transitions. [2021-11-09 08:43:33,486 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8430166324903167 [2021-11-09 08:43:33,486 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3700 transitions. [2021-11-09 08:43:33,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3700 transitions. [2021-11-09 08:43:33,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:33,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3700 transitions. [2021-11-09 08:43:33,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 176.1904761904762) internal successors, (3700), 21 states have internal predecessors, (3700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:33,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 209.0) internal successors, (4598), 22 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:33,495 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 209.0) internal successors, (4598), 22 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:33,496 INFO L186 Difference]: Start difference. First operand has 425 places, 368 transitions, 3230 flow. Second operand 21 states and 3700 transitions. [2021-11-09 08:43:33,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 423 transitions, 4678 flow [2021-11-09 08:43:33,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 423 transitions, 4463 flow, removed 105 selfloop flow, removed 3 redundant places. [2021-11-09 08:43:33,659 INFO L242 Difference]: Finished difference. Result has 454 places, 394 transitions, 3804 flow [2021-11-09 08:43:33,660 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3034, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3804, PETRI_PLACES=454, PETRI_TRANSITIONS=394} [2021-11-09 08:43:33,660 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 265 predicate places. [2021-11-09 08:43:33,660 INFO L470 AbstractCegarLoop]: Abstraction has has 454 places, 394 transitions, 3804 flow [2021-11-09 08:43:33,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:33,661 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:33,661 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] [2021-11-09 08:43:33,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-09 08:43:33,662 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:33,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:33,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1879999878, now seen corresponding path program 8 times [2021-11-09 08:43:33,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:33,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443450357] [2021-11-09 08:43:33,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:33,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:33,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:33,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443450357] [2021-11-09 08:43:33,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443450357] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:33,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:33,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:33,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474688629] [2021-11-09 08:43:33,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:33,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:33,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:33,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:33,807 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:33,808 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 394 transitions, 3804 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:33,809 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:33,809 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:33,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:34,763 INFO L129 PetriNetUnfolder]: 527/2747 cut-off events. [2021-11-09 08:43:34,763 INFO L130 PetriNetUnfolder]: For 25453/25533 co-relation queries the response was YES. [2021-11-09 08:43:34,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12774 conditions, 2747 events. 527/2747 cut-off events. For 25453/25533 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 26849 event pairs, 129 based on Foata normal form. 18/2660 useless extension candidates. Maximal degree in co-relation 12624. Up to 649 conditions per place. [2021-11-09 08:43:34,825 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 175 selfloop transitions, 110 changer transitions 7/452 dead transitions. [2021-11-09 08:43:34,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 452 transitions, 5237 flow [2021-11-09 08:43:34,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 08:43:34,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-11-09 08:43:34,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3525 transitions. [2021-11-09 08:43:34,828 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8433014354066986 [2021-11-09 08:43:34,828 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3525 transitions. [2021-11-09 08:43:34,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3525 transitions. [2021-11-09 08:43:34,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:34,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3525 transitions. [2021-11-09 08:43:34,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 176.25) internal successors, (3525), 20 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:34,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:34,835 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:34,835 INFO L186 Difference]: Start difference. First operand has 454 places, 394 transitions, 3804 flow. Second operand 20 states and 3525 transitions. [2021-11-09 08:43:34,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 452 transitions, 5237 flow [2021-11-09 08:43:35,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 452 transitions, 4967 flow, removed 135 selfloop flow, removed 2 redundant places. [2021-11-09 08:43:35,026 INFO L242 Difference]: Finished difference. Result has 482 places, 420 transitions, 4404 flow [2021-11-09 08:43:35,026 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3590, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4404, PETRI_PLACES=482, PETRI_TRANSITIONS=420} [2021-11-09 08:43:35,026 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 293 predicate places. [2021-11-09 08:43:35,026 INFO L470 AbstractCegarLoop]: Abstraction has has 482 places, 420 transitions, 4404 flow [2021-11-09 08:43:35,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:35,027 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:35,027 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] [2021-11-09 08:43:35,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-09 08:43:35,028 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:35,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:35,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1941006034, now seen corresponding path program 9 times [2021-11-09 08:43:35,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:35,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569894255] [2021-11-09 08:43:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:35,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:35,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:35,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:35,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569894255] [2021-11-09 08:43:35,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569894255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:35,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:35,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:35,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242278214] [2021-11-09 08:43:35,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:35,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:35,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:35,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:35,160 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:35,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 420 transitions, 4404 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:35,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:35,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:35,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:36,400 INFO L129 PetriNetUnfolder]: 535/2873 cut-off events. [2021-11-09 08:43:36,400 INFO L130 PetriNetUnfolder]: For 29457/29579 co-relation queries the response was YES. [2021-11-09 08:43:36,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13783 conditions, 2873 events. 535/2873 cut-off events. For 29457/29579 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 28592 event pairs, 112 based on Foata normal form. 34/2802 useless extension candidates. Maximal degree in co-relation 13621. Up to 670 conditions per place. [2021-11-09 08:43:36,470 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 189 selfloop transitions, 119 changer transitions 7/475 dead transitions. [2021-11-09 08:43:36,471 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 475 transitions, 5889 flow [2021-11-09 08:43:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-09 08:43:36,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-09 08:43:36,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2827 transitions. [2021-11-09 08:43:36,473 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8453947368421053 [2021-11-09 08:43:36,473 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2827 transitions. [2021-11-09 08:43:36,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2827 transitions. [2021-11-09 08:43:36,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:36,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2827 transitions. [2021-11-09 08:43:36,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 176.6875) internal successors, (2827), 16 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:36,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 209.0) internal successors, (3553), 17 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:36,478 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 209.0) internal successors, (3553), 17 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:36,478 INFO L186 Difference]: Start difference. First operand has 482 places, 420 transitions, 4404 flow. Second operand 16 states and 2827 transitions. [2021-11-09 08:43:36,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 475 transitions, 5889 flow [2021-11-09 08:43:36,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 475 transitions, 5714 flow, removed 64 selfloop flow, removed 3 redundant places. [2021-11-09 08:43:36,718 INFO L242 Difference]: Finished difference. Result has 500 places, 438 transitions, 4923 flow [2021-11-09 08:43:36,718 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4292, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4923, PETRI_PLACES=500, PETRI_TRANSITIONS=438} [2021-11-09 08:43:36,718 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 311 predicate places. [2021-11-09 08:43:36,719 INFO L470 AbstractCegarLoop]: Abstraction has has 500 places, 438 transitions, 4923 flow [2021-11-09 08:43:36,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:36,719 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:36,719 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] [2021-11-09 08:43:36,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-09 08:43:36,719 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:36,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1954660582, now seen corresponding path program 10 times [2021-11-09 08:43:36,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:36,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150727035] [2021-11-09 08:43:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:36,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:36,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:36,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150727035] [2021-11-09 08:43:36,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150727035] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:36,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:36,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:36,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113021430] [2021-11-09 08:43:36,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:36,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:36,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:36,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:36,846 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:36,848 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 438 transitions, 4923 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:36,848 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:36,848 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:36,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:38,202 INFO L129 PetriNetUnfolder]: 533/2984 cut-off events. [2021-11-09 08:43:38,202 INFO L130 PetriNetUnfolder]: For 30880/30991 co-relation queries the response was YES. [2021-11-09 08:43:38,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14177 conditions, 2984 events. 533/2984 cut-off events. For 30880/30991 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 30305 event pairs, 112 based on Foata normal form. 28/2898 useless extension candidates. Maximal degree in co-relation 14009. Up to 668 conditions per place. [2021-11-09 08:43:38,287 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 191 selfloop transitions, 123 changer transitions 7/481 dead transitions. [2021-11-09 08:43:38,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 481 transitions, 6208 flow [2021-11-09 08:43:38,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:43:38,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:43:38,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3174 transitions. [2021-11-09 08:43:38,290 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8437001594896332 [2021-11-09 08:43:38,290 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3174 transitions. [2021-11-09 08:43:38,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3174 transitions. [2021-11-09 08:43:38,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:38,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3174 transitions. [2021-11-09 08:43:38,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 176.33333333333334) internal successors, (3174), 18 states have internal predecessors, (3174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:38,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:38,300 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:38,301 INFO L186 Difference]: Start difference. First operand has 500 places, 438 transitions, 4923 flow. Second operand 18 states and 3174 transitions. [2021-11-09 08:43:38,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 481 transitions, 6208 flow [2021-11-09 08:43:38,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 481 transitions, 6054 flow, removed 53 selfloop flow, removed 3 redundant places. [2021-11-09 08:43:38,644 INFO L242 Difference]: Finished difference. Result has 519 places, 447 transitions, 5303 flow [2021-11-09 08:43:38,645 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4790, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5303, PETRI_PLACES=519, PETRI_TRANSITIONS=447} [2021-11-09 08:43:38,646 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 330 predicate places. [2021-11-09 08:43:38,646 INFO L470 AbstractCegarLoop]: Abstraction has has 519 places, 447 transitions, 5303 flow [2021-11-09 08:43:38,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:38,647 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:38,647 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] [2021-11-09 08:43:38,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-09 08:43:38,647 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:38,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:38,648 INFO L85 PathProgramCache]: Analyzing trace with hash 322136312, now seen corresponding path program 11 times [2021-11-09 08:43:38,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:38,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515344169] [2021-11-09 08:43:38,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:38,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:38,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:38,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515344169] [2021-11-09 08:43:38,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515344169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:38,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:38,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:38,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831982469] [2021-11-09 08:43:38,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:38,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:38,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:38,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:38,804 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:38,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 447 transitions, 5303 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:38,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:38,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:38,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:40,150 INFO L129 PetriNetUnfolder]: 539/2984 cut-off events. [2021-11-09 08:43:40,150 INFO L130 PetriNetUnfolder]: For 33191/33274 co-relation queries the response was YES. [2021-11-09 08:43:40,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14772 conditions, 2984 events. 539/2984 cut-off events. For 33191/33274 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 30313 event pairs, 129 based on Foata normal form. 18/2888 useless extension candidates. Maximal degree in co-relation 14599. Up to 688 conditions per place. [2021-11-09 08:43:40,226 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 193 selfloop transitions, 122 changer transitions 7/482 dead transitions. [2021-11-09 08:43:40,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 482 transitions, 6443 flow [2021-11-09 08:43:40,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:43:40,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:43:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3176 transitions. [2021-11-09 08:43:40,228 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8442317916002127 [2021-11-09 08:43:40,229 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3176 transitions. [2021-11-09 08:43:40,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3176 transitions. [2021-11-09 08:43:40,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:40,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3176 transitions. [2021-11-09 08:43:40,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 176.44444444444446) internal successors, (3176), 18 states have internal predecessors, (3176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:40,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:40,233 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:40,234 INFO L186 Difference]: Start difference. First operand has 519 places, 447 transitions, 5303 flow. Second operand 18 states and 3176 transitions. [2021-11-09 08:43:40,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 482 transitions, 6443 flow [2021-11-09 08:43:40,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 482 transitions, 6231 flow, removed 57 selfloop flow, removed 6 redundant places. [2021-11-09 08:43:40,490 INFO L242 Difference]: Finished difference. Result has 535 places, 460 transitions, 5653 flow [2021-11-09 08:43:40,494 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=5105, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5653, PETRI_PLACES=535, PETRI_TRANSITIONS=460} [2021-11-09 08:43:40,494 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 346 predicate places. [2021-11-09 08:43:40,494 INFO L470 AbstractCegarLoop]: Abstraction has has 535 places, 460 transitions, 5653 flow [2021-11-09 08:43:40,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:40,495 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:40,495 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] [2021-11-09 08:43:40,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-09 08:43:40,496 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:40,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:40,497 INFO L85 PathProgramCache]: Analyzing trace with hash -796716606, now seen corresponding path program 12 times [2021-11-09 08:43:40,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:40,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433183955] [2021-11-09 08:43:40,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:40,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:40,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:40,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433183955] [2021-11-09 08:43:40,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433183955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:40,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:40,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:40,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479872856] [2021-11-09 08:43:40,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:40,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:40,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:40,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:40,634 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:40,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 460 transitions, 5653 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:40,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:40,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:40,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:41,862 INFO L129 PetriNetUnfolder]: 548/3101 cut-off events. [2021-11-09 08:43:41,862 INFO L130 PetriNetUnfolder]: For 35332/35421 co-relation queries the response was YES. [2021-11-09 08:43:41,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15590 conditions, 3101 events. 548/3101 cut-off events. For 35332/35421 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 32099 event pairs, 129 based on Foata normal form. 18/3005 useless extension candidates. Maximal degree in co-relation 15413. Up to 707 conditions per place. [2021-11-09 08:43:41,945 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 216 selfloop transitions, 117 changer transitions 7/500 dead transitions. [2021-11-09 08:43:41,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 500 transitions, 7036 flow [2021-11-09 08:43:41,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:43:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-09 08:43:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3004 transitions. [2021-11-09 08:43:41,949 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8454826906839291 [2021-11-09 08:43:41,949 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3004 transitions. [2021-11-09 08:43:41,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3004 transitions. [2021-11-09 08:43:41,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:41,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3004 transitions. [2021-11-09 08:43:41,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 176.7058823529412) internal successors, (3004), 17 states have internal predecessors, (3004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:41,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:41,957 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 209.0) internal successors, (3762), 18 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:41,957 INFO L186 Difference]: Start difference. First operand has 535 places, 460 transitions, 5653 flow. Second operand 17 states and 3004 transitions. [2021-11-09 08:43:41,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 500 transitions, 7036 flow [2021-11-09 08:43:42,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 500 transitions, 6924 flow, removed 28 selfloop flow, removed 4 redundant places. [2021-11-09 08:43:42,322 INFO L242 Difference]: Finished difference. Result has 553 places, 479 transitions, 6312 flow [2021-11-09 08:43:42,323 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=5546, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6312, PETRI_PLACES=553, PETRI_TRANSITIONS=479} [2021-11-09 08:43:42,323 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 364 predicate places. [2021-11-09 08:43:42,323 INFO L470 AbstractCegarLoop]: Abstraction has has 553 places, 479 transitions, 6312 flow [2021-11-09 08:43:42,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:42,324 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:42,324 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] [2021-11-09 08:43:42,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-09 08:43:42,324 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:42,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:42,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1587436946, now seen corresponding path program 13 times [2021-11-09 08:43:42,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:42,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586279224] [2021-11-09 08:43:42,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:42,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:42,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:42,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586279224] [2021-11-09 08:43:42,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586279224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:42,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:42,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:42,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911746389] [2021-11-09 08:43:42,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:42,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:42,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:42,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:42,449 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:42,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 479 transitions, 6312 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:42,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:42,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:42,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:43:43,901 INFO L129 PetriNetUnfolder]: 546/3146 cut-off events. [2021-11-09 08:43:43,902 INFO L130 PetriNetUnfolder]: For 39767/39855 co-relation queries the response was YES. [2021-11-09 08:43:43,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15949 conditions, 3146 events. 546/3146 cut-off events. For 39767/39855 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 32617 event pairs, 143 based on Foata normal form. 7/3036 useless extension candidates. Maximal degree in co-relation 15767. Up to 702 conditions per place. [2021-11-09 08:43:43,993 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 219 selfloop transitions, 119 changer transitions 7/505 dead transitions. [2021-11-09 08:43:43,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 505 transitions, 7398 flow [2021-11-09 08:43:43,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:43:43,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:43:43,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3178 transitions. [2021-11-09 08:43:43,996 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8447634237107922 [2021-11-09 08:43:43,996 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3178 transitions. [2021-11-09 08:43:43,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3178 transitions. [2021-11-09 08:43:43,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:43:43,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3178 transitions. [2021-11-09 08:43:44,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 176.55555555555554) internal successors, (3178), 18 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:44,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:44,003 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 209.0) internal successors, (3971), 19 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:44,004 INFO L186 Difference]: Start difference. First operand has 553 places, 479 transitions, 6312 flow. Second operand 18 states and 3178 transitions. [2021-11-09 08:43:44,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 505 transitions, 7398 flow [2021-11-09 08:43:44,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 505 transitions, 7157 flow, removed 92 selfloop flow, removed 4 redundant places. [2021-11-09 08:43:44,329 INFO L242 Difference]: Finished difference. Result has 569 places, 486 transitions, 6558 flow [2021-11-09 08:43:44,330 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=6095, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6558, PETRI_PLACES=569, PETRI_TRANSITIONS=486} [2021-11-09 08:43:44,330 INFO L334 CegarLoopForPetriNet]: 189 programPoint places, 380 predicate places. [2021-11-09 08:43:44,330 INFO L470 AbstractCegarLoop]: Abstraction has has 569 places, 486 transitions, 6558 flow [2021-11-09 08:43:44,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:44,330 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:43:44,331 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] [2021-11-09 08:43:44,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-09 08:43:44,331 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-09 08:43:44,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:43:44,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1384865934, now seen corresponding path program 14 times [2021-11-09 08:43:44,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:43:44,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258286743] [2021-11-09 08:43:44,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:43:44,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:43:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:43:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:43:44,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:43:44,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258286743] [2021-11-09 08:43:44,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258286743] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:43:44,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:43:44,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 08:43:44,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590552180] [2021-11-09 08:43:44,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:43:44,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:43:44,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:43:44,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:43:44,478 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 209 [2021-11-09 08:43:44,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 486 transitions, 6558 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:43:44,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:43:44,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 209 [2021-11-09 08:43:44,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand