./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/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_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/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_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/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 c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:37:25,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:37:25,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:37:25,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:37:25,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:37:25,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:37:25,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:37:25,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:37:25,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:37:25,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:37:25,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:37:25,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:37:25,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:37:25,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:37:25,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:37:25,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:37:25,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:37:25,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:37:25,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:37:25,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:37:25,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:37:25,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:37:25,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:37:25,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:37:25,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:37:25,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:37:25,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:37:25,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:37:25,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:37:25,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:37:25,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:37:25,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:37:25,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:37:25,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:37:25,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:37:25,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:37:25,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:37:25,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:37:25,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:37:25,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:37:25,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:37:25,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:37:25,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:37:25,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:37:25,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:37:25,379 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:37:25,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:37:25,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:37:25,382 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:37:25,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:37:25,382 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:37:25,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:37:25,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:37:25,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:37:25,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:37:25,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:37:25,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:37:25,385 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:37:25,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:37:25,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:37:25,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:37:25,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:37:25,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:37:25,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:37:25,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:37:25,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:37:25,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:37:25,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:37:25,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:37:25,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:37:25,388 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:37:25,389 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:37:25,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:37:25,389 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:37:25,389 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_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f [2021-11-09 09:37:25,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:37:25,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:37:25,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:37:25,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:37:25,804 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:37:25,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2021-11-09 09:37:25,902 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/data/c4dc23e9e/87fccbe390134f4f8cd03fb37e98248c/FLAGb6cf8624e [2021-11-09 09:37:26,438 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:37:26,439 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2021-11-09 09:37:26,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/data/c4dc23e9e/87fccbe390134f4f8cd03fb37e98248c/FLAGb6cf8624e [2021-11-09 09:37:26,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/data/c4dc23e9e/87fccbe390134f4f8cd03fb37e98248c [2021-11-09 09:37:26,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:37:26,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:37:26,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:37:26,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:37:26,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:37:26,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:37:26" (1/1) ... [2021-11-09 09:37:26,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71432d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:26, skipping insertion in model container [2021-11-09 09:37:26,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:37:26" (1/1) ... [2021-11-09 09:37:26,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:37:26,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:37:27,146 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_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2021-11-09 09:37:27,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:37:27,180 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:37:27,205 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_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2021-11-09 09:37:27,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:37:27,225 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:37:27,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27 WrapperNode [2021-11-09 09:37:27,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:37:27,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:37:27,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:37:27,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:37:27,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (1/1) ... [2021-11-09 09:37:27,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (1/1) ... [2021-11-09 09:37:27,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:37:27,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:37:27,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:37:27,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:37:27,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (1/1) ... [2021-11-09 09:37:27,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (1/1) ... [2021-11-09 09:37:27,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (1/1) ... [2021-11-09 09:37:27,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (1/1) ... [2021-11-09 09:37:27,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (1/1) ... [2021-11-09 09:37:27,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (1/1) ... [2021-11-09 09:37:27,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (1/1) ... [2021-11-09 09:37:27,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:37:27,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:37:27,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:37:27,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:37:27,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (1/1) ... [2021-11-09 09:37:27,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:37:27,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:37:27,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:37:27,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:37:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-09 09:37:27,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-09 09:37:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-09 09:37:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-09 09:37:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:37:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:37:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 09:37:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 09:37:27,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:37:27,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:37:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 09:37:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:37:27,476 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 09:37:28,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:37:28,167 INFO L299 CfgBuilder]: Removed 42 assume(true) statements. [2021-11-09 09:37:28,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:37:28 BoogieIcfgContainer [2021-11-09 09:37:28,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:37:28,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:37:28,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:37:28,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:37:28,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:37:26" (1/3) ... [2021-11-09 09:37:28,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3f5e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:37:28, skipping insertion in model container [2021-11-09 09:37:28,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:27" (2/3) ... [2021-11-09 09:37:28,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3f5e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:37:28, skipping insertion in model container [2021-11-09 09:37:28,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:37:28" (3/3) ... [2021-11-09 09:37:28,190 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2021-11-09 09:37:28,197 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 09:37:28,197 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:37:28,197 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 09:37:28,198 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 09:37:28,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,273 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,273 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,274 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,274 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,274 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,275 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,275 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,275 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,276 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,276 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,277 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,277 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,277 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,278 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,278 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,278 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,278 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,279 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,279 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,279 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,280 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,281 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,281 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,282 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,282 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,283 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,285 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,285 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,285 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,286 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,286 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,286 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,286 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,287 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,287 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,287 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,287 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,288 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,288 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,288 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,288 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,289 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,289 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,289 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,289 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,290 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,290 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,291 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,291 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,291 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,291 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,292 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,292 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,292 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,294 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,295 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,296 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,297 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,297 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,297 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,298 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,298 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,298 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,298 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,300 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,300 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,300 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,300 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,301 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,301 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,301 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,301 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,302 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,302 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,303 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,303 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,304 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,307 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,308 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,308 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,309 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,309 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,311 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,311 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,319 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,320 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,320 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,320 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,321 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,321 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,321 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,321 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,347 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,350 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,350 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,350 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,351 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,351 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,351 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,351 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,351 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,351 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,353 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,353 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,353 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,353 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,353 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,353 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,354 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,354 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,354 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,354 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,355 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,355 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,355 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,375 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,376 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,376 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,376 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,376 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,376 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,376 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,376 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,377 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,377 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,377 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,377 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,377 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,377 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,378 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,378 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,378 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,378 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,378 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,379 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,379 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,379 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,379 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,379 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,379 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,381 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,382 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,382 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,382 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,382 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,382 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,382 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,382 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,383 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,383 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,383 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,383 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,383 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,384 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,384 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,384 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,384 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,384 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,384 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,385 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,385 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,385 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,385 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,385 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,386 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,386 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,386 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,386 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,387 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,387 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,387 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,387 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,388 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,388 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,388 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,388 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,389 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,389 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,389 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,389 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,389 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,389 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,390 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,390 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,390 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,390 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,390 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,393 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,393 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,393 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,393 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,393 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,394 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,394 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,394 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,395 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,395 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,399 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,400 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,400 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,400 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,400 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,400 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,401 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,401 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,401 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,401 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,401 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,402 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,402 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,402 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,407 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,408 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,408 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,408 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,408 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,408 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,409 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,409 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,409 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,409 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,409 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,410 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,410 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:37:28,417 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-09 09:37:28,473 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:37:28,480 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 09:37:28,480 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-09 09:37:28,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 218 places, 234 transitions, 484 flow [2021-11-09 09:37:28,603 INFO L129 PetriNetUnfolder]: 23/232 cut-off events. [2021-11-09 09:37:28,603 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-09 09:37:28,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 232 events. 23/232 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 299 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 148. Up to 2 conditions per place. [2021-11-09 09:37:28,610 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 234 transitions, 484 flow [2021-11-09 09:37:28,620 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 208 places, 224 transitions, 460 flow [2021-11-09 09:37:28,694 INFO L129 PetriNetUnfolder]: 23/223 cut-off events. [2021-11-09 09:37:28,694 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-09 09:37:28,694 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:28,695 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] [2021-11-09 09:37:28,696 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:28,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:28,702 INFO L85 PathProgramCache]: Analyzing trace with hash -370574975, now seen corresponding path program 1 times [2021-11-09 09:37:28,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:28,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899853432] [2021-11-09 09:37:28,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:28,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:29,043 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 09:37:29,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:29,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899853432] [2021-11-09 09:37:29,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899853432] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:29,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:29,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:37:29,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400797587] [2021-11-09 09:37:29,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:37:29,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:29,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:37:29,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:37:29,081 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 234 [2021-11-09 09:37:29,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 224 transitions, 460 flow. Second operand has 2 states, 2 states have (on average 217.5) internal successors, (435), 2 states have internal predecessors, (435), 0 states have call successors, (0), 0 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 09:37:29,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:29,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 234 [2021-11-09 09:37:29,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:29,255 INFO L129 PetriNetUnfolder]: 6/207 cut-off events. [2021-11-09 09:37:29,256 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-09 09:37:29,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 207 events. 6/207 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 284 event pairs, 0 based on Foata normal form. 17/205 useless extension candidates. Maximal degree in co-relation 213. Up to 2 conditions per place. [2021-11-09 09:37:29,263 INFO L132 encePairwiseOnDemand]: 217/234 looper letters, 0 selfloop transitions, 0 changer transitions 7/207 dead transitions. [2021-11-09 09:37:29,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 207 transitions, 426 flow [2021-11-09 09:37:29,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:37:29,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-09 09:37:29,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 449 transitions. [2021-11-09 09:37:29,287 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9594017094017094 [2021-11-09 09:37:29,288 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 449 transitions. [2021-11-09 09:37:29,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 449 transitions. [2021-11-09 09:37:29,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:29,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 449 transitions. [2021-11-09 09:37:29,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 224.5) internal successors, (449), 2 states have internal predecessors, (449), 0 states have call successors, (0), 0 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 09:37:29,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 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 09:37:29,314 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 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 09:37:29,316 INFO L186 Difference]: Start difference. First operand has 208 places, 224 transitions, 460 flow. Second operand 2 states and 449 transitions. [2021-11-09 09:37:29,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 207 transitions, 426 flow [2021-11-09 09:37:29,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 207 transitions, 418 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-09 09:37:29,332 INFO L242 Difference]: Finished difference. Result has 205 places, 200 transitions, 404 flow [2021-11-09 09:37:29,335 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=404, PETRI_PLACES=205, PETRI_TRANSITIONS=200} [2021-11-09 09:37:29,335 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, -3 predicate places. [2021-11-09 09:37:29,336 INFO L470 AbstractCegarLoop]: Abstraction has has 205 places, 200 transitions, 404 flow [2021-11-09 09:37:29,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 217.5) internal successors, (435), 2 states have internal predecessors, (435), 0 states have call successors, (0), 0 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 09:37:29,337 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:29,337 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] [2021-11-09 09:37:29,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:37:29,338 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:29,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:29,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1166004896, now seen corresponding path program 1 times [2021-11-09 09:37:29,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:29,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147044656] [2021-11-09 09:37:29,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:29,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:29,540 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 09:37:29,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:29,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147044656] [2021-11-09 09:37:29,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147044656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:29,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:29,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:37:29,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425559696] [2021-11-09 09:37:29,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:37:29,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:29,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:37:29,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:37:29,551 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 234 [2021-11-09 09:37:29,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 200 transitions, 404 flow. Second operand has 5 states, 5 states have (on average 195.2) internal successors, (976), 5 states have internal predecessors, (976), 0 states have call successors, (0), 0 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 09:37:29,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:29,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 234 [2021-11-09 09:37:29,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:29,714 INFO L129 PetriNetUnfolder]: 6/212 cut-off events. [2021-11-09 09:37:29,714 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:37:29,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 212 events. 6/212 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 268 event pairs, 0 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 246. Up to 21 conditions per place. [2021-11-09 09:37:29,718 INFO L132 encePairwiseOnDemand]: 224/234 looper letters, 24 selfloop transitions, 8 changer transitions 0/208 dead transitions. [2021-11-09 09:37:29,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 208 transitions, 484 flow [2021-11-09 09:37:29,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:37:29,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 09:37:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 994 transitions. [2021-11-09 09:37:29,723 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8495726495726496 [2021-11-09 09:37:29,723 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 994 transitions. [2021-11-09 09:37:29,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 994 transitions. [2021-11-09 09:37:29,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:29,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 994 transitions. [2021-11-09 09:37:29,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 198.8) internal successors, (994), 5 states have internal predecessors, (994), 0 states have call successors, (0), 0 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 09:37:29,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 234.0) internal successors, (1404), 6 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 09:37:29,735 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 234.0) internal successors, (1404), 6 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 09:37:29,735 INFO L186 Difference]: Start difference. First operand has 205 places, 200 transitions, 404 flow. Second operand 5 states and 994 transitions. [2021-11-09 09:37:29,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 208 transitions, 484 flow [2021-11-09 09:37:29,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 208 transitions, 484 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:37:29,752 INFO L242 Difference]: Finished difference. Result has 203 places, 202 transitions, 436 flow [2021-11-09 09:37:29,753 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=436, PETRI_PLACES=203, PETRI_TRANSITIONS=202} [2021-11-09 09:37:29,753 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, -5 predicate places. [2021-11-09 09:37:29,754 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 202 transitions, 436 flow [2021-11-09 09:37:29,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 195.2) internal successors, (976), 5 states have internal predecessors, (976), 0 states have call successors, (0), 0 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 09:37:29,755 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:29,756 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:29,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:37:29,756 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:29,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:29,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1477265688, now seen corresponding path program 1 times [2021-11-09 09:37:29,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:29,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023110534] [2021-11-09 09:37:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:29,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 09:37:30,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:30,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023110534] [2021-11-09 09:37:30,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023110534] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:30,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823736934] [2021-11-09 09:37:30,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:30,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:30,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:37:30,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:37:30,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 09:37:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:30,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:37:30,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:37:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 09:37:30,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823736934] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:30,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:37:30,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-11-09 09:37:30,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043155019] [2021-11-09 09:37:30,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 09:37:30,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 09:37:30,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-09 09:37:30,761 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 234 [2021-11-09 09:37:30,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 202 transitions, 436 flow. Second operand has 10 states, 10 states have (on average 193.3) internal successors, (1933), 10 states have internal predecessors, (1933), 0 states have call successors, (0), 0 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 09:37:30,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:30,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 234 [2021-11-09 09:37:30,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:31,021 INFO L129 PetriNetUnfolder]: 6/226 cut-off events. [2021-11-09 09:37:31,034 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-11-09 09:37:31,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 226 events. 6/226 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 268 event pairs, 0 based on Foata normal form. 2/218 useless extension candidates. Maximal degree in co-relation 288. Up to 23 conditions per place. [2021-11-09 09:37:31,038 INFO L132 encePairwiseOnDemand]: 220/234 looper letters, 30 selfloop transitions, 14 changer transitions 0/218 dead transitions. [2021-11-09 09:37:31,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 218 transitions, 560 flow [2021-11-09 09:37:31,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:37:31,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-11-09 09:37:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1566 transitions. [2021-11-09 09:37:31,056 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8365384615384616 [2021-11-09 09:37:31,057 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1566 transitions. [2021-11-09 09:37:31,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1566 transitions. [2021-11-09 09:37:31,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:31,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1566 transitions. [2021-11-09 09:37:31,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 195.75) internal successors, (1566), 8 states have internal predecessors, (1566), 0 states have call successors, (0), 0 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 09:37:31,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 234.0) internal successors, (2106), 9 states have internal predecessors, (2106), 0 states have call successors, (0), 0 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 09:37:31,086 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 234.0) internal successors, (2106), 9 states have internal predecessors, (2106), 0 states have call successors, (0), 0 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 09:37:31,086 INFO L186 Difference]: Start difference. First operand has 203 places, 202 transitions, 436 flow. Second operand 8 states and 1566 transitions. [2021-11-09 09:37:31,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 218 transitions, 560 flow [2021-11-09 09:37:31,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 218 transitions, 548 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-09 09:37:31,094 INFO L242 Difference]: Finished difference. Result has 210 places, 208 transitions, 496 flow [2021-11-09 09:37:31,106 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=496, PETRI_PLACES=210, PETRI_TRANSITIONS=208} [2021-11-09 09:37:31,106 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 2 predicate places. [2021-11-09 09:37:31,106 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 208 transitions, 496 flow [2021-11-09 09:37:31,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 193.3) internal successors, (1933), 10 states have internal predecessors, (1933), 0 states have call successors, (0), 0 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 09:37:31,108 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:31,108 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:31,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:37:31,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:31,309 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:31,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:31,310 INFO L85 PathProgramCache]: Analyzing trace with hash -90813344, now seen corresponding path program 2 times [2021-11-09 09:37:31,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:31,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135124335] [2021-11-09 09:37:31,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:31,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 09:37:31,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:31,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135124335] [2021-11-09 09:37:31,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135124335] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:31,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624035479] [2021-11-09 09:37:31,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:37:31,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:31,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:37:31,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:37:31,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 09:37:31,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-09 09:37:31,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:37:31,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 09:37:31,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:37:32,189 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-09 09:37:32,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624035479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:32,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 09:37:32,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2021-11-09 09:37:32,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604339635] [2021-11-09 09:37:32,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:37:32,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:32,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:37:32,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-09 09:37:32,197 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 234 [2021-11-09 09:37:32,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 208 transitions, 496 flow. Second operand has 6 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 0 states have call successors, (0), 0 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 09:37:32,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:32,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 234 [2021-11-09 09:37:32,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:32,906 INFO L129 PetriNetUnfolder]: 175/1426 cut-off events. [2021-11-09 09:37:32,906 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-11-09 09:37:32,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1810 conditions, 1426 events. 175/1426 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9521 event pairs, 10 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 1802. Up to 107 conditions per place. [2021-11-09 09:37:32,920 INFO L132 encePairwiseOnDemand]: 222/234 looper letters, 55 selfloop transitions, 33 changer transitions 0/271 dead transitions. [2021-11-09 09:37:32,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 271 transitions, 803 flow [2021-11-09 09:37:32,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 09:37:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-09 09:37:32,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2574 transitions. [2021-11-09 09:37:32,929 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2021-11-09 09:37:32,929 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2574 transitions. [2021-11-09 09:37:32,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2574 transitions. [2021-11-09 09:37:32,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:32,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2574 transitions. [2021-11-09 09:37:32,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 198.0) internal successors, (2574), 13 states have internal predecessors, (2574), 0 states have call successors, (0), 0 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 09:37:32,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 234.0) internal successors, (3276), 14 states have internal predecessors, (3276), 0 states have call successors, (0), 0 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 09:37:32,953 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 234.0) internal successors, (3276), 14 states have internal predecessors, (3276), 0 states have call successors, (0), 0 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 09:37:32,953 INFO L186 Difference]: Start difference. First operand has 210 places, 208 transitions, 496 flow. Second operand 13 states and 2574 transitions. [2021-11-09 09:37:32,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 271 transitions, 803 flow [2021-11-09 09:37:32,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 271 transitions, 783 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-11-09 09:37:32,964 INFO L242 Difference]: Finished difference. Result has 224 places, 239 transitions, 672 flow [2021-11-09 09:37:32,965 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=672, PETRI_PLACES=224, PETRI_TRANSITIONS=239} [2021-11-09 09:37:32,965 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 16 predicate places. [2021-11-09 09:37:32,966 INFO L470 AbstractCegarLoop]: Abstraction has has 224 places, 239 transitions, 672 flow [2021-11-09 09:37:32,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 0 states have call successors, (0), 0 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 09:37:32,967 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:32,967 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:33,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:37:33,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:33,183 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:33,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:33,183 INFO L85 PathProgramCache]: Analyzing trace with hash -215937158, now seen corresponding path program 3 times [2021-11-09 09:37:33,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:33,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478019448] [2021-11-09 09:37:33,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:33,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:33,318 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 09:37:33,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:33,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478019448] [2021-11-09 09:37:33,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478019448] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:33,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277478217] [2021-11-09 09:37:33,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:37:33,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:33,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:37:33,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:37:33,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 09:37:33,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-09 09:37:33,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:37:33,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 09:37:33,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:37:34,213 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-09 09:37:34,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277478217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:34,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 09:37:34,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2021-11-09 09:37:34,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598402497] [2021-11-09 09:37:34,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:37:34,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:34,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:37:34,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-09 09:37:34,219 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 234 [2021-11-09 09:37:34,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 239 transitions, 672 flow. Second operand has 6 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 0 states have call successors, (0), 0 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 09:37:34,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:34,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 234 [2021-11-09 09:37:34,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:34,782 INFO L129 PetriNetUnfolder]: 217/1295 cut-off events. [2021-11-09 09:37:34,782 INFO L130 PetriNetUnfolder]: For 492/569 co-relation queries the response was YES. [2021-11-09 09:37:34,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2126 conditions, 1295 events. 217/1295 cut-off events. For 492/569 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 8341 event pairs, 39 based on Foata normal form. 21/1231 useless extension candidates. Maximal degree in co-relation 2112. Up to 202 conditions per place. [2021-11-09 09:37:34,798 INFO L132 encePairwiseOnDemand]: 221/234 looper letters, 63 selfloop transitions, 22 changer transitions 24/292 dead transitions. [2021-11-09 09:37:34,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 292 transitions, 1155 flow [2021-11-09 09:37:34,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 09:37:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-09 09:37:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2377 transitions. [2021-11-09 09:37:34,807 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8465099715099715 [2021-11-09 09:37:34,807 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2377 transitions. [2021-11-09 09:37:34,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2377 transitions. [2021-11-09 09:37:34,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:34,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2377 transitions. [2021-11-09 09:37:34,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 198.08333333333334) internal successors, (2377), 12 states have internal predecessors, (2377), 0 states have call successors, (0), 0 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 09:37:34,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 234.0) internal successors, (3042), 13 states have internal predecessors, (3042), 0 states have call successors, (0), 0 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 09:37:34,824 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 234.0) internal successors, (3042), 13 states have internal predecessors, (3042), 0 states have call successors, (0), 0 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 09:37:34,825 INFO L186 Difference]: Start difference. First operand has 224 places, 239 transitions, 672 flow. Second operand 12 states and 2377 transitions. [2021-11-09 09:37:34,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 292 transitions, 1155 flow [2021-11-09 09:37:34,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 292 transitions, 1155 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:37:34,838 INFO L242 Difference]: Finished difference. Result has 241 places, 248 transitions, 836 flow [2021-11-09 09:37:34,839 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=836, PETRI_PLACES=241, PETRI_TRANSITIONS=248} [2021-11-09 09:37:34,840 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 33 predicate places. [2021-11-09 09:37:34,840 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 248 transitions, 836 flow [2021-11-09 09:37:34,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 0 states have call successors, (0), 0 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 09:37:34,841 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:34,842 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:34,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 09:37:35,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:35,055 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:35,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:35,055 INFO L85 PathProgramCache]: Analyzing trace with hash 503600742, now seen corresponding path program 1 times [2021-11-09 09:37:35,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:35,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745434838] [2021-11-09 09:37:35,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:35,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:35,123 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-09 09:37:35,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:35,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745434838] [2021-11-09 09:37:35,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745434838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:35,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:35,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:37:35,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583287966] [2021-11-09 09:37:35,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 09:37:35,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:35,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 09:37:35,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:37:35,128 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 234 [2021-11-09 09:37:35,130 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 248 transitions, 836 flow. Second operand has 4 states, 4 states have (on average 205.25) internal successors, (821), 4 states have internal predecessors, (821), 0 states have call successors, (0), 0 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 09:37:35,130 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:35,130 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 234 [2021-11-09 09:37:35,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:35,371 INFO L129 PetriNetUnfolder]: 66/1097 cut-off events. [2021-11-09 09:37:35,371 INFO L130 PetriNetUnfolder]: For 722/819 co-relation queries the response was YES. [2021-11-09 09:37:35,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1553 conditions, 1097 events. 66/1097 cut-off events. For 722/819 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5906 event pairs, 2 based on Foata normal form. 60/1102 useless extension candidates. Maximal degree in co-relation 1532. Up to 45 conditions per place. [2021-11-09 09:37:35,386 INFO L132 encePairwiseOnDemand]: 229/234 looper letters, 53 selfloop transitions, 4 changer transitions 0/263 dead transitions. [2021-11-09 09:37:35,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 263 transitions, 1034 flow [2021-11-09 09:37:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:37:35,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 09:37:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1041 transitions. [2021-11-09 09:37:35,390 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8897435897435897 [2021-11-09 09:37:35,390 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1041 transitions. [2021-11-09 09:37:35,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1041 transitions. [2021-11-09 09:37:35,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:35,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1041 transitions. [2021-11-09 09:37:35,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.2) internal successors, (1041), 5 states have internal predecessors, (1041), 0 states have call successors, (0), 0 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 09:37:35,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 234.0) internal successors, (1404), 6 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 09:37:35,399 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 234.0) internal successors, (1404), 6 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 09:37:35,399 INFO L186 Difference]: Start difference. First operand has 241 places, 248 transitions, 836 flow. Second operand 5 states and 1041 transitions. [2021-11-09 09:37:35,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 263 transitions, 1034 flow [2021-11-09 09:37:35,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 263 transitions, 993 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-11-09 09:37:35,411 INFO L242 Difference]: Finished difference. Result has 237 places, 248 transitions, 838 flow [2021-11-09 09:37:35,412 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=838, PETRI_PLACES=237, PETRI_TRANSITIONS=248} [2021-11-09 09:37:35,413 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 29 predicate places. [2021-11-09 09:37:35,413 INFO L470 AbstractCegarLoop]: Abstraction has has 237 places, 248 transitions, 838 flow [2021-11-09 09:37:35,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 205.25) internal successors, (821), 4 states have internal predecessors, (821), 0 states have call successors, (0), 0 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 09:37:35,414 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:35,414 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:35,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 09:37:35,415 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:35,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:35,416 INFO L85 PathProgramCache]: Analyzing trace with hash 354754060, now seen corresponding path program 4 times [2021-11-09 09:37:35,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:35,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080217184] [2021-11-09 09:37:35,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:35,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 09:37:35,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:35,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080217184] [2021-11-09 09:37:35,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080217184] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:35,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276567121] [2021-11-09 09:37:35,528 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:37:35,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:35,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:37:35,530 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:37:35,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 09:37:35,810 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:37:35,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:37:35,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 09:37:35,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:37:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 09:37:36,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276567121] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:36,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:37:36,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-11-09 09:37:36,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396459480] [2021-11-09 09:37:36,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-09 09:37:36,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:36,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-09 09:37:36,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-09 09:37:36,250 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 234 [2021-11-09 09:37:36,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 248 transitions, 838 flow. Second operand has 14 states, 14 states have (on average 193.07142857142858) internal successors, (2703), 14 states have internal predecessors, (2703), 0 states have call successors, (0), 0 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 09:37:36,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:36,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 234 [2021-11-09 09:37:36,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:36,667 INFO L129 PetriNetUnfolder]: 69/1123 cut-off events. [2021-11-09 09:37:36,667 INFO L130 PetriNetUnfolder]: For 289/321 co-relation queries the response was YES. [2021-11-09 09:37:36,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1524 conditions, 1123 events. 69/1123 cut-off events. For 289/321 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6071 event pairs, 2 based on Foata normal form. 16/1084 useless extension candidates. Maximal degree in co-relation 1503. Up to 28 conditions per place. [2021-11-09 09:37:36,679 INFO L132 encePairwiseOnDemand]: 220/234 looper letters, 34 selfloop transitions, 20 changer transitions 0/268 dead transitions. [2021-11-09 09:37:36,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 268 transitions, 1006 flow [2021-11-09 09:37:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 09:37:36,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-09 09:37:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2146 transitions. [2021-11-09 09:37:36,686 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8337218337218337 [2021-11-09 09:37:36,686 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2146 transitions. [2021-11-09 09:37:36,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2146 transitions. [2021-11-09 09:37:36,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:36,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2146 transitions. [2021-11-09 09:37:36,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 195.0909090909091) internal successors, (2146), 11 states have internal predecessors, (2146), 0 states have call successors, (0), 0 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 09:37:36,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 234.0) internal successors, (2808), 12 states have internal predecessors, (2808), 0 states have call successors, (0), 0 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 09:37:36,704 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 234.0) internal successors, (2808), 12 states have internal predecessors, (2808), 0 states have call successors, (0), 0 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 09:37:36,705 INFO L186 Difference]: Start difference. First operand has 237 places, 248 transitions, 838 flow. Second operand 11 states and 2146 transitions. [2021-11-09 09:37:36,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 268 transitions, 1006 flow [2021-11-09 09:37:36,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 268 transitions, 1006 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:37:36,717 INFO L242 Difference]: Finished difference. Result has 250 places, 254 transitions, 934 flow [2021-11-09 09:37:36,718 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=934, PETRI_PLACES=250, PETRI_TRANSITIONS=254} [2021-11-09 09:37:36,718 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 42 predicate places. [2021-11-09 09:37:36,718 INFO L470 AbstractCegarLoop]: Abstraction has has 250 places, 254 transitions, 934 flow [2021-11-09 09:37:36,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 193.07142857142858) internal successors, (2703), 14 states have internal predecessors, (2703), 0 states have call successors, (0), 0 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 09:37:36,720 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:36,720 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:36,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 09:37:36,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:36,934 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:36,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:36,935 INFO L85 PathProgramCache]: Analyzing trace with hash 915229352, now seen corresponding path program 5 times [2021-11-09 09:37:36,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:36,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544996858] [2021-11-09 09:37:36,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:36,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:37,106 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-09 09:37:37,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:37,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544996858] [2021-11-09 09:37:37,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544996858] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:37,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954961221] [2021-11-09 09:37:37,108 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:37:37,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:37,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:37:37,109 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:37:37,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 09:37:37,439 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-09 09:37:37,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:37:37,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 09:37:37,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:37:38,048 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-09 09:37:38,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954961221] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:38,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:37:38,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2021-11-09 09:37:38,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123723612] [2021-11-09 09:37:38,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-09 09:37:38,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:38,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-09 09:37:38,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2021-11-09 09:37:38,060 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 234 [2021-11-09 09:37:38,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 254 transitions, 934 flow. Second operand has 18 states, 18 states have (on average 192.94444444444446) internal successors, (3473), 18 states have internal predecessors, (3473), 0 states have call successors, (0), 0 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 09:37:38,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:38,065 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 234 [2021-11-09 09:37:38,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:38,558 INFO L129 PetriNetUnfolder]: 69/1137 cut-off events. [2021-11-09 09:37:38,558 INFO L130 PetriNetUnfolder]: For 351/383 co-relation queries the response was YES. [2021-11-09 09:37:38,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 1137 events. 69/1137 cut-off events. For 351/383 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6090 event pairs, 2 based on Foata normal form. 16/1098 useless extension candidates. Maximal degree in co-relation 1577. Up to 28 conditions per place. [2021-11-09 09:37:38,573 INFO L132 encePairwiseOnDemand]: 220/234 looper letters, 38 selfloop transitions, 26 changer transitions 0/278 dead transitions. [2021-11-09 09:37:38,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 278 transitions, 1146 flow [2021-11-09 09:37:38,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 09:37:38,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-09 09:37:38,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2726 transitions. [2021-11-09 09:37:38,583 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8321123321123322 [2021-11-09 09:37:38,583 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2726 transitions. [2021-11-09 09:37:38,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2726 transitions. [2021-11-09 09:37:38,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:38,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2726 transitions. [2021-11-09 09:37:38,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.71428571428572) internal successors, (2726), 14 states have internal predecessors, (2726), 0 states have call successors, (0), 0 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 09:37:38,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 234.0) internal successors, (3510), 15 states have internal predecessors, (3510), 0 states have call successors, (0), 0 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 09:37:38,605 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 234.0) internal successors, (3510), 15 states have internal predecessors, (3510), 0 states have call successors, (0), 0 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 09:37:38,606 INFO L186 Difference]: Start difference. First operand has 250 places, 254 transitions, 934 flow. Second operand 14 states and 2726 transitions. [2021-11-09 09:37:38,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 278 transitions, 1146 flow [2021-11-09 09:37:38,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 278 transitions, 1102 flow, removed 8 selfloop flow, removed 7 redundant places. [2021-11-09 09:37:38,620 INFO L242 Difference]: Finished difference. Result has 259 places, 260 transitions, 1010 flow [2021-11-09 09:37:38,620 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1010, PETRI_PLACES=259, PETRI_TRANSITIONS=260} [2021-11-09 09:37:38,621 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 51 predicate places. [2021-11-09 09:37:38,621 INFO L470 AbstractCegarLoop]: Abstraction has has 259 places, 260 transitions, 1010 flow [2021-11-09 09:37:38,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 192.94444444444446) internal successors, (3473), 18 states have internal predecessors, (3473), 0 states have call successors, (0), 0 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 09:37:38,623 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:38,623 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:38,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 09:37:38,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:38,842 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:38,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:38,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1011490124, now seen corresponding path program 6 times [2021-11-09 09:37:38,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:38,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309170158] [2021-11-09 09:37:38,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:38,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-09 09:37:38,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:38,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309170158] [2021-11-09 09:37:38,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309170158] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:38,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958049068] [2021-11-09 09:37:38,987 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:37:38,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:38,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:37:38,988 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:37:39,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 09:37:39,377 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-09 09:37:39,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:37:39,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 09:37:39,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:37:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-09 09:37:39,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958049068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:39,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 09:37:39,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2021-11-09 09:37:39,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854548548] [2021-11-09 09:37:39,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:37:39,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:39,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:37:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-09 09:37:39,839 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 234 [2021-11-09 09:37:39,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 260 transitions, 1010 flow. Second operand has 6 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 0 states have call successors, (0), 0 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 09:37:39,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:39,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 234 [2021-11-09 09:37:39,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:40,620 INFO L129 PetriNetUnfolder]: 250/2259 cut-off events. [2021-11-09 09:37:40,620 INFO L130 PetriNetUnfolder]: For 1792/1960 co-relation queries the response was YES. [2021-11-09 09:37:40,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3703 conditions, 2259 events. 250/2259 cut-off events. For 1792/1960 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 16979 event pairs, 73 based on Foata normal form. 82/2212 useless extension candidates. Maximal degree in co-relation 3675. Up to 166 conditions per place. [2021-11-09 09:37:40,648 INFO L132 encePairwiseOnDemand]: 224/234 looper letters, 84 selfloop transitions, 56 changer transitions 1/337 dead transitions. [2021-11-09 09:37:40,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 337 transitions, 1684 flow [2021-11-09 09:37:40,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 09:37:40,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-09 09:37:40,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1998 transitions. [2021-11-09 09:37:40,657 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8538461538461538 [2021-11-09 09:37:40,658 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1998 transitions. [2021-11-09 09:37:40,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1998 transitions. [2021-11-09 09:37:40,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:40,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1998 transitions. [2021-11-09 09:37:40,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 199.8) internal successors, (1998), 10 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:37:40,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 234.0) internal successors, (2574), 11 states have internal predecessors, (2574), 0 states have call successors, (0), 0 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 09:37:40,671 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 234.0) internal successors, (2574), 11 states have internal predecessors, (2574), 0 states have call successors, (0), 0 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 09:37:40,672 INFO L186 Difference]: Start difference. First operand has 259 places, 260 transitions, 1010 flow. Second operand 10 states and 1998 transitions. [2021-11-09 09:37:40,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 337 transitions, 1684 flow [2021-11-09 09:37:40,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 337 transitions, 1616 flow, removed 14 selfloop flow, removed 10 redundant places. [2021-11-09 09:37:40,693 INFO L242 Difference]: Finished difference. Result has 265 places, 290 transitions, 1320 flow [2021-11-09 09:37:40,694 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1320, PETRI_PLACES=265, PETRI_TRANSITIONS=290} [2021-11-09 09:37:40,694 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 57 predicate places. [2021-11-09 09:37:40,694 INFO L470 AbstractCegarLoop]: Abstraction has has 265 places, 290 transitions, 1320 flow [2021-11-09 09:37:40,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 0 states have call successors, (0), 0 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 09:37:40,697 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:40,697 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:40,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 09:37:40,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-09 09:37:40,907 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:40,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:40,907 INFO L85 PathProgramCache]: Analyzing trace with hash 2010564082, now seen corresponding path program 7 times [2021-11-09 09:37:40,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:40,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924858294] [2021-11-09 09:37:40,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:40,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-09 09:37:41,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:41,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924858294] [2021-11-09 09:37:41,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924858294] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:41,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786991036] [2021-11-09 09:37:41,079 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:37:41,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:37:41,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:37:41,080 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:37:41,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-09 09:37:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:41,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 09:37:41,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:37:42,049 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-09 09:37:42,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786991036] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:37:42,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:37:42,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2021-11-09 09:37:42,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217837679] [2021-11-09 09:37:42,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-09 09:37:42,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:42,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-09 09:37:42,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:37:42,061 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 234 [2021-11-09 09:37:42,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 290 transitions, 1320 flow. Second operand has 22 states, 22 states have (on average 192.86363636363637) internal successors, (4243), 22 states have internal predecessors, (4243), 0 states have call successors, (0), 0 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 09:37:42,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:42,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 234 [2021-11-09 09:37:42,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:42,829 INFO L129 PetriNetUnfolder]: 97/1453 cut-off events. [2021-11-09 09:37:42,829 INFO L130 PetriNetUnfolder]: For 1116/1198 co-relation queries the response was YES. [2021-11-09 09:37:42,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2235 conditions, 1453 events. 97/1453 cut-off events. For 1116/1198 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8866 event pairs, 4 based on Foata normal form. 19/1399 useless extension candidates. Maximal degree in co-relation 2200. Up to 35 conditions per place. [2021-11-09 09:37:42,848 INFO L132 encePairwiseOnDemand]: 218/234 looper letters, 38 selfloop transitions, 36 changer transitions 0/318 dead transitions. [2021-11-09 09:37:42,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 318 transitions, 1576 flow [2021-11-09 09:37:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 09:37:42,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 09:37:42,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3496 transitions. [2021-11-09 09:37:42,860 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8300094966761633 [2021-11-09 09:37:42,860 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3496 transitions. [2021-11-09 09:37:42,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3496 transitions. [2021-11-09 09:37:42,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:42,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3496 transitions. [2021-11-09 09:37:42,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 194.22222222222223) internal successors, (3496), 18 states have internal predecessors, (3496), 0 states have call successors, (0), 0 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 09:37:42,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 234.0) internal successors, (4446), 19 states have internal predecessors, (4446), 0 states have call successors, (0), 0 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 09:37:42,883 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 234.0) internal successors, (4446), 19 states have internal predecessors, (4446), 0 states have call successors, (0), 0 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 09:37:42,884 INFO L186 Difference]: Start difference. First operand has 265 places, 290 transitions, 1320 flow. Second operand 18 states and 3496 transitions. [2021-11-09 09:37:42,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 318 transitions, 1576 flow [2021-11-09 09:37:42,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 318 transitions, 1547 flow, removed 14 selfloop flow, removed 1 redundant places. [2021-11-09 09:37:42,902 INFO L242 Difference]: Finished difference. Result has 285 places, 298 transitions, 1458 flow [2021-11-09 09:37:42,903 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=1291, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1458, PETRI_PLACES=285, PETRI_TRANSITIONS=298} [2021-11-09 09:37:42,903 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 77 predicate places. [2021-11-09 09:37:42,903 INFO L470 AbstractCegarLoop]: Abstraction has has 285 places, 298 transitions, 1458 flow [2021-11-09 09:37:42,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 192.86363636363637) internal successors, (4243), 22 states have internal predecessors, (4243), 0 states have call successors, (0), 0 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 09:37:42,905 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:42,905 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:42,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-09 09:37:43,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbf19e8-5a2b-46bd-b213-a1513d6dac3b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-09 09:37:43,127 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:43,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:43,127 INFO L85 PathProgramCache]: Analyzing trace with hash 477834120, now seen corresponding path program 8 times [2021-11-09 09:37:43,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:43,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87979771] [2021-11-09 09:37:43,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:43,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:43,304 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-09 09:37:43,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:43,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87979771] [2021-11-09 09:37:43,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87979771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:43,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:43,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:37:43,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365507596] [2021-11-09 09:37:43,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:37:43,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:43,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:37:43,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:37:43,309 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:37:43,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 298 transitions, 1458 flow. Second operand has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:43,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:43,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:37:43,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:44,341 INFO L129 PetriNetUnfolder]: 494/3359 cut-off events. [2021-11-09 09:37:44,341 INFO L130 PetriNetUnfolder]: For 4011/4152 co-relation queries the response was YES. [2021-11-09 09:37:44,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6144 conditions, 3359 events. 494/3359 cut-off events. For 4011/4152 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 27859 event pairs, 113 based on Foata normal form. 55/3221 useless extension candidates. Maximal degree in co-relation 6105. Up to 380 conditions per place. [2021-11-09 09:37:44,392 INFO L132 encePairwiseOnDemand]: 221/234 looper letters, 92 selfloop transitions, 73 changer transitions 0/363 dead transitions. [2021-11-09 09:37:44,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 363 transitions, 2216 flow [2021-11-09 09:37:44,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:37:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-09 09:37:44,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1767 transitions. [2021-11-09 09:37:44,400 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8390313390313391 [2021-11-09 09:37:44,401 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1767 transitions. [2021-11-09 09:37:44,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1767 transitions. [2021-11-09 09:37:44,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:44,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1767 transitions. [2021-11-09 09:37:44,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 196.33333333333334) internal successors, (1767), 9 states have internal predecessors, (1767), 0 states have call successors, (0), 0 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 09:37:44,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 234.0) internal successors, (2340), 10 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:37:44,416 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 234.0) internal successors, (2340), 10 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:37:44,417 INFO L186 Difference]: Start difference. First operand has 285 places, 298 transitions, 1458 flow. Second operand 9 states and 1767 transitions. [2021-11-09 09:37:44,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 363 transitions, 2216 flow [2021-11-09 09:37:44,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 363 transitions, 2115 flow, removed 28 selfloop flow, removed 12 redundant places. [2021-11-09 09:37:44,470 INFO L242 Difference]: Finished difference. Result has 289 places, 314 transitions, 1827 flow [2021-11-09 09:37:44,471 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=1357, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1827, PETRI_PLACES=289, PETRI_TRANSITIONS=314} [2021-11-09 09:37:44,472 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 81 predicate places. [2021-11-09 09:37:44,472 INFO L470 AbstractCegarLoop]: Abstraction has has 289 places, 314 transitions, 1827 flow [2021-11-09 09:37:44,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:44,473 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:44,474 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:44,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 09:37:44,474 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:44,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:44,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1401085088, now seen corresponding path program 9 times [2021-11-09 09:37:44,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:44,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151300037] [2021-11-09 09:37:44,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:44,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:44,725 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-09 09:37:44,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:44,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151300037] [2021-11-09 09:37:44,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151300037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:44,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:44,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:37:44,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935402694] [2021-11-09 09:37:44,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:37:44,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:44,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:37:44,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:37:44,732 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:37:44,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 314 transitions, 1827 flow. Second operand has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:44,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:44,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:37:44,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:46,270 INFO L129 PetriNetUnfolder]: 659/4282 cut-off events. [2021-11-09 09:37:46,271 INFO L130 PetriNetUnfolder]: For 8213/8490 co-relation queries the response was YES. [2021-11-09 09:37:46,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8549 conditions, 4282 events. 659/4282 cut-off events. For 8213/8490 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 39010 event pairs, 119 based on Foata normal form. 135/4181 useless extension candidates. Maximal degree in co-relation 8503. Up to 627 conditions per place. [2021-11-09 09:37:46,350 INFO L132 encePairwiseOnDemand]: 216/234 looper letters, 121 selfloop transitions, 105 changer transitions 1/425 dead transitions. [2021-11-09 09:37:46,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 425 transitions, 3090 flow [2021-11-09 09:37:46,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 09:37:46,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-09 09:37:46,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2740 transitions. [2021-11-09 09:37:46,360 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8363858363858364 [2021-11-09 09:37:46,360 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2740 transitions. [2021-11-09 09:37:46,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2740 transitions. [2021-11-09 09:37:46,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:46,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2740 transitions. [2021-11-09 09:37:46,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 195.71428571428572) internal successors, (2740), 14 states have internal predecessors, (2740), 0 states have call successors, (0), 0 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 09:37:46,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 234.0) internal successors, (3510), 15 states have internal predecessors, (3510), 0 states have call successors, (0), 0 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 09:37:46,383 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 234.0) internal successors, (3510), 15 states have internal predecessors, (3510), 0 states have call successors, (0), 0 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 09:37:46,383 INFO L186 Difference]: Start difference. First operand has 289 places, 314 transitions, 1827 flow. Second operand 14 states and 2740 transitions. [2021-11-09 09:37:46,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 425 transitions, 3090 flow [2021-11-09 09:37:46,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 425 transitions, 3072 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-11-09 09:37:46,446 INFO L242 Difference]: Finished difference. Result has 311 places, 356 transitions, 2659 flow [2021-11-09 09:37:46,447 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=1809, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2659, PETRI_PLACES=311, PETRI_TRANSITIONS=356} [2021-11-09 09:37:46,447 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 103 predicate places. [2021-11-09 09:37:46,448 INFO L470 AbstractCegarLoop]: Abstraction has has 311 places, 356 transitions, 2659 flow [2021-11-09 09:37:46,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:46,448 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:46,449 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:46,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-09 09:37:46,449 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:46,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:46,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1692992638, now seen corresponding path program 10 times [2021-11-09 09:37:46,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:46,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874784767] [2021-11-09 09:37:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:46,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-09 09:37:46,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:46,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874784767] [2021-11-09 09:37:46,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874784767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:46,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:46,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:37:46,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675345018] [2021-11-09 09:37:46,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:37:46,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:46,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:37:46,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:37:46,664 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:37:46,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 356 transitions, 2659 flow. Second operand has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:46,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:46,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:37:46,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:48,379 INFO L129 PetriNetUnfolder]: 696/4719 cut-off events. [2021-11-09 09:37:48,379 INFO L130 PetriNetUnfolder]: For 12028/12390 co-relation queries the response was YES. [2021-11-09 09:37:48,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10167 conditions, 4719 events. 696/4719 cut-off events. For 12028/12390 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 44598 event pairs, 174 based on Foata normal form. 147/4586 useless extension candidates. Maximal degree in co-relation 10112. Up to 415 conditions per place. [2021-11-09 09:37:48,456 INFO L132 encePairwiseOnDemand]: 221/234 looper letters, 103 selfloop transitions, 123 changer transitions 3/427 dead transitions. [2021-11-09 09:37:48,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 427 transitions, 3669 flow [2021-11-09 09:37:48,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 09:37:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-09 09:37:48,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2724 transitions. [2021-11-09 09:37:48,462 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8315018315018315 [2021-11-09 09:37:48,462 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2724 transitions. [2021-11-09 09:37:48,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2724 transitions. [2021-11-09 09:37:48,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:48,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2724 transitions. [2021-11-09 09:37:48,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.57142857142858) internal successors, (2724), 14 states have internal predecessors, (2724), 0 states have call successors, (0), 0 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 09:37:48,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 234.0) internal successors, (3510), 15 states have internal predecessors, (3510), 0 states have call successors, (0), 0 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 09:37:48,484 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 234.0) internal successors, (3510), 15 states have internal predecessors, (3510), 0 states have call successors, (0), 0 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 09:37:48,484 INFO L186 Difference]: Start difference. First operand has 311 places, 356 transitions, 2659 flow. Second operand 14 states and 2724 transitions. [2021-11-09 09:37:48,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 427 transitions, 3669 flow [2021-11-09 09:37:48,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 427 transitions, 3647 flow, removed 11 selfloop flow, removed 0 redundant places. [2021-11-09 09:37:48,560 INFO L242 Difference]: Finished difference. Result has 330 places, 363 transitions, 3143 flow [2021-11-09 09:37:48,561 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=2610, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3143, PETRI_PLACES=330, PETRI_TRANSITIONS=363} [2021-11-09 09:37:48,562 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 122 predicate places. [2021-11-09 09:37:48,562 INFO L470 AbstractCegarLoop]: Abstraction has has 330 places, 363 transitions, 3143 flow [2021-11-09 09:37:48,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:48,562 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:48,563 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:48,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 09:37:48,563 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:48,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:48,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1703116994, now seen corresponding path program 11 times [2021-11-09 09:37:48,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:48,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116515148] [2021-11-09 09:37:48,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:48,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-09 09:37:48,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:48,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116515148] [2021-11-09 09:37:48,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116515148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:48,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:48,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:37:48,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912747011] [2021-11-09 09:37:48,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:37:48,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:48,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:37:48,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:37:48,745 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:37:48,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 363 transitions, 3143 flow. Second operand has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:48,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:48,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:37:48,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:50,530 INFO L129 PetriNetUnfolder]: 879/5921 cut-off events. [2021-11-09 09:37:50,530 INFO L130 PetriNetUnfolder]: For 19181/19666 co-relation queries the response was YES. [2021-11-09 09:37:50,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13328 conditions, 5921 events. 879/5921 cut-off events. For 19181/19666 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 59336 event pairs, 174 based on Foata normal form. 143/5713 useless extension candidates. Maximal degree in co-relation 13265. Up to 929 conditions per place. [2021-11-09 09:37:50,624 INFO L132 encePairwiseOnDemand]: 221/234 looper letters, 138 selfloop transitions, 105 changer transitions 6/447 dead transitions. [2021-11-09 09:37:50,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 447 transitions, 4715 flow [2021-11-09 09:37:50,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:37:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-11-09 09:37:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1564 transitions. [2021-11-09 09:37:50,628 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8354700854700855 [2021-11-09 09:37:50,628 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1564 transitions. [2021-11-09 09:37:50,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1564 transitions. [2021-11-09 09:37:50,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:50,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1564 transitions. [2021-11-09 09:37:50,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 195.5) internal successors, (1564), 8 states have internal predecessors, (1564), 0 states have call successors, (0), 0 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 09:37:50,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 234.0) internal successors, (2106), 9 states have internal predecessors, (2106), 0 states have call successors, (0), 0 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 09:37:50,639 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 234.0) internal successors, (2106), 9 states have internal predecessors, (2106), 0 states have call successors, (0), 0 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 09:37:50,640 INFO L186 Difference]: Start difference. First operand has 330 places, 363 transitions, 3143 flow. Second operand 8 states and 1564 transitions. [2021-11-09 09:37:50,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 447 transitions, 4715 flow [2021-11-09 09:37:50,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 447 transitions, 4644 flow, removed 13 selfloop flow, removed 3 redundant places. [2021-11-09 09:37:50,780 INFO L242 Difference]: Finished difference. Result has 338 places, 397 transitions, 4060 flow [2021-11-09 09:37:50,781 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=3088, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4060, PETRI_PLACES=338, PETRI_TRANSITIONS=397} [2021-11-09 09:37:50,782 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 130 predicate places. [2021-11-09 09:37:50,782 INFO L470 AbstractCegarLoop]: Abstraction has has 338 places, 397 transitions, 4060 flow [2021-11-09 09:37:50,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:50,783 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:50,783 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:50,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 09:37:50,784 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:50,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:50,784 INFO L85 PathProgramCache]: Analyzing trace with hash 923437136, now seen corresponding path program 12 times [2021-11-09 09:37:50,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:50,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307779874] [2021-11-09 09:37:50,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:50,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:50,984 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-09 09:37:50,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:50,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307779874] [2021-11-09 09:37:50,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307779874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:50,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:50,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:37:50,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708608838] [2021-11-09 09:37:50,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:37:50,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:50,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:37:50,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:37:50,990 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:37:50,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 397 transitions, 4060 flow. Second operand has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:50,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:50,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:37:50,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:52,965 INFO L129 PetriNetUnfolder]: 936/6071 cut-off events. [2021-11-09 09:37:52,965 INFO L130 PetriNetUnfolder]: For 25840/26805 co-relation queries the response was YES. [2021-11-09 09:37:53,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14675 conditions, 6071 events. 936/6071 cut-off events. For 25840/26805 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 60031 event pairs, 140 based on Foata normal form. 340/6028 useless extension candidates. Maximal degree in co-relation 14607. Up to 840 conditions per place. [2021-11-09 09:37:53,082 INFO L132 encePairwiseOnDemand]: 215/234 looper letters, 111 selfloop transitions, 171 changer transitions 8/488 dead transitions. [2021-11-09 09:37:53,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 488 transitions, 5748 flow [2021-11-09 09:37:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:37:53,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-09 09:37:53,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2903 transitions. [2021-11-09 09:37:53,088 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.827065527065527 [2021-11-09 09:37:53,088 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2903 transitions. [2021-11-09 09:37:53,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2903 transitions. [2021-11-09 09:37:53,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:53,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2903 transitions. [2021-11-09 09:37:53,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 193.53333333333333) internal successors, (2903), 15 states have internal predecessors, (2903), 0 states have call successors, (0), 0 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 09:37:53,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 234.0) internal successors, (3744), 16 states have internal predecessors, (3744), 0 states have call successors, (0), 0 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 09:37:53,106 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 234.0) internal successors, (3744), 16 states have internal predecessors, (3744), 0 states have call successors, (0), 0 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 09:37:53,106 INFO L186 Difference]: Start difference. First operand has 338 places, 397 transitions, 4060 flow. Second operand 15 states and 2903 transitions. [2021-11-09 09:37:53,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 488 transitions, 5748 flow [2021-11-09 09:37:53,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 488 transitions, 5589 flow, removed 43 selfloop flow, removed 2 redundant places. [2021-11-09 09:37:53,255 INFO L242 Difference]: Finished difference. Result has 357 places, 440 transitions, 5162 flow [2021-11-09 09:37:53,256 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=3963, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5162, PETRI_PLACES=357, PETRI_TRANSITIONS=440} [2021-11-09 09:37:53,257 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 149 predicate places. [2021-11-09 09:37:53,257 INFO L470 AbstractCegarLoop]: Abstraction has has 357 places, 440 transitions, 5162 flow [2021-11-09 09:37:53,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:53,258 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:53,258 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:53,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-09 09:37:53,259 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:53,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:53,259 INFO L85 PathProgramCache]: Analyzing trace with hash -355107224, now seen corresponding path program 13 times [2021-11-09 09:37:53,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:53,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607050997] [2021-11-09 09:37:53,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:53,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:53,478 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-09 09:37:53,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:53,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607050997] [2021-11-09 09:37:53,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607050997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:53,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:53,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:37:53,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751450498] [2021-11-09 09:37:53,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:37:53,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:53,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:37:53,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:37:53,483 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:37:53,485 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 440 transitions, 5162 flow. Second operand has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:53,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:53,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:37:53,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:37:57,931 INFO L129 PetriNetUnfolder]: 2970/15863 cut-off events. [2021-11-09 09:37:57,931 INFO L130 PetriNetUnfolder]: For 37110/37405 co-relation queries the response was YES. [2021-11-09 09:37:58,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33828 conditions, 15863 events. 2970/15863 cut-off events. For 37110/37405 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 194502 event pairs, 530 based on Foata normal form. 92/14871 useless extension candidates. Maximal degree in co-relation 33753. Up to 2081 conditions per place. [2021-11-09 09:37:58,247 INFO L132 encePairwiseOnDemand]: 223/234 looper letters, 70 selfloop transitions, 23 changer transitions 2/504 dead transitions. [2021-11-09 09:37:58,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 504 transitions, 5479 flow [2021-11-09 09:37:58,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 09:37:58,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-09 09:37:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1955 transitions. [2021-11-09 09:37:58,251 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8354700854700855 [2021-11-09 09:37:58,252 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1955 transitions. [2021-11-09 09:37:58,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1955 transitions. [2021-11-09 09:37:58,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:58,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1955 transitions. [2021-11-09 09:37:58,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 195.5) internal successors, (1955), 10 states have internal predecessors, (1955), 0 states have call successors, (0), 0 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 09:37:58,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 234.0) internal successors, (2574), 11 states have internal predecessors, (2574), 0 states have call successors, (0), 0 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 09:37:58,261 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 234.0) internal successors, (2574), 11 states have internal predecessors, (2574), 0 states have call successors, (0), 0 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 09:37:58,261 INFO L186 Difference]: Start difference. First operand has 357 places, 440 transitions, 5162 flow. Second operand 10 states and 1955 transitions. [2021-11-09 09:37:58,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 504 transitions, 5479 flow [2021-11-09 09:37:58,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 504 transitions, 5313 flow, removed 37 selfloop flow, removed 3 redundant places. [2021-11-09 09:37:58,552 INFO L242 Difference]: Finished difference. Result has 364 places, 455 transitions, 5083 flow [2021-11-09 09:37:58,553 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=4996, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5083, PETRI_PLACES=364, PETRI_TRANSITIONS=455} [2021-11-09 09:37:58,553 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 156 predicate places. [2021-11-09 09:37:58,553 INFO L470 AbstractCegarLoop]: Abstraction has has 364 places, 455 transitions, 5083 flow [2021-11-09 09:37:58,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 187.71428571428572) internal successors, (1314), 7 states have internal predecessors, (1314), 0 states have call successors, (0), 0 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 09:37:58,553 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:37:58,554 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:58,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-09 09:37:58,554 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:37:58,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:58,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2029340974, now seen corresponding path program 1 times [2021-11-09 09:37:58,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:58,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58869961] [2021-11-09 09:37:58,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:58,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:58,699 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-09 09:37:58,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:58,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58869961] [2021-11-09 09:37:58,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58869961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:58,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:58,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:37:58,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284593791] [2021-11-09 09:37:58,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:37:58,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:58,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:37:58,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:37:58,704 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:37:58,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 455 transitions, 5083 flow. Second operand has 8 states, 8 states have (on average 188.5) internal successors, (1508), 8 states have internal predecessors, (1508), 0 states have call successors, (0), 0 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 09:37:58,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:37:58,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:37:58,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:38:02,952 INFO L129 PetriNetUnfolder]: 2971/14929 cut-off events. [2021-11-09 09:38:02,952 INFO L130 PetriNetUnfolder]: For 34358/34667 co-relation queries the response was YES. [2021-11-09 09:38:03,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34222 conditions, 14929 events. 2971/14929 cut-off events. For 34358/34667 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 176223 event pairs, 963 based on Foata normal form. 157/14369 useless extension candidates. Maximal degree in co-relation 34144. Up to 2931 conditions per place. [2021-11-09 09:38:03,398 INFO L132 encePairwiseOnDemand]: 223/234 looper letters, 95 selfloop transitions, 21 changer transitions 24/549 dead transitions. [2021-11-09 09:38:03,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 549 transitions, 5658 flow [2021-11-09 09:38:03,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 09:38:03,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-09 09:38:03,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2157 transitions. [2021-11-09 09:38:03,403 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.837995337995338 [2021-11-09 09:38:03,404 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2157 transitions. [2021-11-09 09:38:03,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2157 transitions. [2021-11-09 09:38:03,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:38:03,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2157 transitions. [2021-11-09 09:38:03,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 196.0909090909091) internal successors, (2157), 11 states have internal predecessors, (2157), 0 states have call successors, (0), 0 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 09:38:03,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 234.0) internal successors, (2808), 12 states have internal predecessors, (2808), 0 states have call successors, (0), 0 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 09:38:03,416 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 234.0) internal successors, (2808), 12 states have internal predecessors, (2808), 0 states have call successors, (0), 0 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 09:38:03,416 INFO L186 Difference]: Start difference. First operand has 364 places, 455 transitions, 5083 flow. Second operand 11 states and 2157 transitions. [2021-11-09 09:38:03,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 549 transitions, 5658 flow [2021-11-09 09:38:03,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 549 transitions, 5652 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-11-09 09:38:03,698 INFO L242 Difference]: Finished difference. Result has 377 places, 468 transitions, 5230 flow [2021-11-09 09:38:03,699 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=5077, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5230, PETRI_PLACES=377, PETRI_TRANSITIONS=468} [2021-11-09 09:38:03,700 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 169 predicate places. [2021-11-09 09:38:03,700 INFO L470 AbstractCegarLoop]: Abstraction has has 377 places, 468 transitions, 5230 flow [2021-11-09 09:38:03,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 188.5) internal successors, (1508), 8 states have internal predecessors, (1508), 0 states have call successors, (0), 0 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 09:38:03,701 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:38:03,702 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:38:03,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-09 09:38:03,702 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:38:03,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:38:03,703 INFO L85 PathProgramCache]: Analyzing trace with hash -932554022, now seen corresponding path program 2 times [2021-11-09 09:38:03,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:38:03,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563239169] [2021-11-09 09:38:03,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:38:03,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:38:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:38:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-09 09:38:03,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:38:03,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563239169] [2021-11-09 09:38:03,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563239169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:38:03,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:38:03,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:38:03,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549706870] [2021-11-09 09:38:03,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:38:03,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:38:03,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:38:03,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:38:03,927 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:38:03,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 468 transitions, 5230 flow. Second operand has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 0 states have call successors, (0), 0 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 09:38:03,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:38:03,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:38:03,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:38:08,922 INFO L129 PetriNetUnfolder]: 3256/16904 cut-off events. [2021-11-09 09:38:08,922 INFO L130 PetriNetUnfolder]: For 45692/46289 co-relation queries the response was YES. [2021-11-09 09:38:09,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41441 conditions, 16904 events. 3256/16904 cut-off events. For 45692/46289 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 205116 event pairs, 933 based on Foata normal form. 208/16914 useless extension candidates. Maximal degree in co-relation 41358. Up to 1961 conditions per place. [2021-11-09 09:38:09,291 INFO L132 encePairwiseOnDemand]: 222/234 looper letters, 95 selfloop transitions, 40 changer transitions 12/556 dead transitions. [2021-11-09 09:38:09,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 556 transitions, 5861 flow [2021-11-09 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 09:38:09,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-09 09:38:09,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1979 transitions. [2021-11-09 09:38:09,296 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8457264957264957 [2021-11-09 09:38:09,296 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1979 transitions. [2021-11-09 09:38:09,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1979 transitions. [2021-11-09 09:38:09,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:38:09,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1979 transitions. [2021-11-09 09:38:09,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 197.9) internal successors, (1979), 10 states have internal predecessors, (1979), 0 states have call successors, (0), 0 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 09:38:09,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 234.0) internal successors, (2574), 11 states have internal predecessors, (2574), 0 states have call successors, (0), 0 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 09:38:09,308 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 234.0) internal successors, (2574), 11 states have internal predecessors, (2574), 0 states have call successors, (0), 0 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 09:38:09,309 INFO L186 Difference]: Start difference. First operand has 377 places, 468 transitions, 5230 flow. Second operand 10 states and 1979 transitions. [2021-11-09 09:38:09,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 556 transitions, 5861 flow [2021-11-09 09:38:09,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 556 transitions, 5827 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-11-09 09:38:09,650 INFO L242 Difference]: Finished difference. Result has 384 places, 485 transitions, 5456 flow [2021-11-09 09:38:09,651 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=5212, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5456, PETRI_PLACES=384, PETRI_TRANSITIONS=485} [2021-11-09 09:38:09,651 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 176 predicate places. [2021-11-09 09:38:09,651 INFO L470 AbstractCegarLoop]: Abstraction has has 384 places, 485 transitions, 5456 flow [2021-11-09 09:38:09,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 0 states have call successors, (0), 0 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 09:38:09,652 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:38:09,653 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:38:09,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-09 09:38:09,653 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:38:09,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:38:09,655 INFO L85 PathProgramCache]: Analyzing trace with hash -437389460, now seen corresponding path program 3 times [2021-11-09 09:38:09,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:38:09,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143644065] [2021-11-09 09:38:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:38:09,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:38:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:38:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-09 09:38:09,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:38:09,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143644065] [2021-11-09 09:38:09,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143644065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:38:09,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:38:09,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:38:09,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071417003] [2021-11-09 09:38:09,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:38:09,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:38:09,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:38:09,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:38:09,854 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:38:09,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 485 transitions, 5456 flow. Second operand has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 0 states have call successors, (0), 0 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 09:38:09,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:38:09,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:38:09,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:38:15,259 INFO L129 PetriNetUnfolder]: 3160/17085 cut-off events. [2021-11-09 09:38:15,260 INFO L130 PetriNetUnfolder]: For 56416/56869 co-relation queries the response was YES. [2021-11-09 09:38:15,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45691 conditions, 17085 events. 3160/17085 cut-off events. For 56416/56869 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 207581 event pairs, 982 based on Foata normal form. 207/17139 useless extension candidates. Maximal degree in co-relation 45605. Up to 3012 conditions per place. [2021-11-09 09:38:15,602 INFO L132 encePairwiseOnDemand]: 224/234 looper letters, 105 selfloop transitions, 32 changer transitions 7/553 dead transitions. [2021-11-09 09:38:15,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 553 transitions, 6059 flow [2021-11-09 09:38:15,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 09:38:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-09 09:38:15,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1955 transitions. [2021-11-09 09:38:15,606 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8354700854700855 [2021-11-09 09:38:15,606 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1955 transitions. [2021-11-09 09:38:15,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1955 transitions. [2021-11-09 09:38:15,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:38:15,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1955 transitions. [2021-11-09 09:38:15,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 195.5) internal successors, (1955), 10 states have internal predecessors, (1955), 0 states have call successors, (0), 0 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 09:38:15,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 234.0) internal successors, (2574), 11 states have internal predecessors, (2574), 0 states have call successors, (0), 0 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 09:38:15,617 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 234.0) internal successors, (2574), 11 states have internal predecessors, (2574), 0 states have call successors, (0), 0 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 09:38:15,617 INFO L186 Difference]: Start difference. First operand has 384 places, 485 transitions, 5456 flow. Second operand 10 states and 1955 transitions. [2021-11-09 09:38:15,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 553 transitions, 6059 flow [2021-11-09 09:38:15,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 553 transitions, 6038 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-11-09 09:38:15,991 INFO L242 Difference]: Finished difference. Result has 396 places, 493 transitions, 5606 flow [2021-11-09 09:38:15,992 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=5439, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5606, PETRI_PLACES=396, PETRI_TRANSITIONS=493} [2021-11-09 09:38:15,992 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 188 predicate places. [2021-11-09 09:38:15,993 INFO L470 AbstractCegarLoop]: Abstraction has has 396 places, 493 transitions, 5606 flow [2021-11-09 09:38:15,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 0 states have call successors, (0), 0 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 09:38:15,993 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:38:15,994 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:38:15,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-09 09:38:15,994 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:38:15,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:38:15,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1544126784, now seen corresponding path program 4 times [2021-11-09 09:38:15,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:38:15,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856847915] [2021-11-09 09:38:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:38:15,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:38:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:38:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-09 09:38:16,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:38:16,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856847915] [2021-11-09 09:38:16,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856847915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:38:16,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:38:16,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:38:16,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813235959] [2021-11-09 09:38:16,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:38:16,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:38:16,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:38:16,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:38:16,179 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:38:16,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 493 transitions, 5606 flow. Second operand has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 0 states have call successors, (0), 0 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 09:38:16,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:38:16,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:38:16,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:38:23,260 INFO L129 PetriNetUnfolder]: 4378/22390 cut-off events. [2021-11-09 09:38:23,260 INFO L130 PetriNetUnfolder]: For 84423/85272 co-relation queries the response was YES. [2021-11-09 09:38:23,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62345 conditions, 22390 events. 4378/22390 cut-off events. For 84423/85272 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 282744 event pairs, 672 based on Foata normal form. 310/22499 useless extension candidates. Maximal degree in co-relation 62254. Up to 2876 conditions per place. [2021-11-09 09:38:23,728 INFO L132 encePairwiseOnDemand]: 214/234 looper letters, 101 selfloop transitions, 109 changer transitions 18/637 dead transitions. [2021-11-09 09:38:23,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 637 transitions, 6924 flow [2021-11-09 09:38:23,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:38:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-09 09:38:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2948 transitions. [2021-11-09 09:38:23,733 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8398860398860399 [2021-11-09 09:38:23,733 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2948 transitions. [2021-11-09 09:38:23,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2948 transitions. [2021-11-09 09:38:23,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:38:23,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2948 transitions. [2021-11-09 09:38:23,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 196.53333333333333) internal successors, (2948), 15 states have internal predecessors, (2948), 0 states have call successors, (0), 0 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 09:38:23,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 234.0) internal successors, (3744), 16 states have internal predecessors, (3744), 0 states have call successors, (0), 0 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 09:38:23,748 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 234.0) internal successors, (3744), 16 states have internal predecessors, (3744), 0 states have call successors, (0), 0 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 09:38:23,748 INFO L186 Difference]: Start difference. First operand has 396 places, 493 transitions, 5606 flow. Second operand 15 states and 2948 transitions. [2021-11-09 09:38:23,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 637 transitions, 6924 flow [2021-11-09 09:38:24,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 637 transitions, 6855 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-11-09 09:38:24,233 INFO L242 Difference]: Finished difference. Result has 413 places, 562 transitions, 6512 flow [2021-11-09 09:38:24,234 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=5568, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6512, PETRI_PLACES=413, PETRI_TRANSITIONS=562} [2021-11-09 09:38:24,234 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 205 predicate places. [2021-11-09 09:38:24,235 INFO L470 AbstractCegarLoop]: Abstraction has has 413 places, 562 transitions, 6512 flow [2021-11-09 09:38:24,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 0 states have call successors, (0), 0 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 09:38:24,235 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:38:24,236 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:38:24,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-09 09:38:24,236 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:38:24,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:38:24,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1371902386, now seen corresponding path program 5 times [2021-11-09 09:38:24,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:38:24,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918360676] [2021-11-09 09:38:24,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:38:24,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:38:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:38:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-09 09:38:24,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:38:24,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918360676] [2021-11-09 09:38:24,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918360676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:38:24,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:38:24,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:38:24,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118137638] [2021-11-09 09:38:24,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:38:24,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:38:24,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:38:24,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:38:24,387 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:38:24,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 562 transitions, 6512 flow. Second operand has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 0 states have call successors, (0), 0 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 09:38:24,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:38:24,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:38:24,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:38:32,219 INFO L129 PetriNetUnfolder]: 4362/22455 cut-off events. [2021-11-09 09:38:32,219 INFO L130 PetriNetUnfolder]: For 103660/105552 co-relation queries the response was YES. [2021-11-09 09:38:32,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70503 conditions, 22455 events. 4362/22455 cut-off events. For 103660/105552 co-relation queries the response was YES. Maximal size of possible extension queue 609. Compared 284251 event pairs, 812 based on Foata normal form. 648/22901 useless extension candidates. Maximal degree in co-relation 70404. Up to 3095 conditions per place. [2021-11-09 09:38:33,035 INFO L132 encePairwiseOnDemand]: 220/234 looper letters, 119 selfloop transitions, 93 changer transitions 8/629 dead transitions. [2021-11-09 09:38:33,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 629 transitions, 7389 flow [2021-11-09 09:38:33,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 09:38:33,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-09 09:38:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2353 transitions. [2021-11-09 09:38:33,039 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8379629629629629 [2021-11-09 09:38:33,039 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2353 transitions. [2021-11-09 09:38:33,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2353 transitions. [2021-11-09 09:38:33,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:38:33,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2353 transitions. [2021-11-09 09:38:33,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 196.08333333333334) internal successors, (2353), 12 states have internal predecessors, (2353), 0 states have call successors, (0), 0 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 09:38:33,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 234.0) internal successors, (3042), 13 states have internal predecessors, (3042), 0 states have call successors, (0), 0 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 09:38:33,050 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 234.0) internal successors, (3042), 13 states have internal predecessors, (3042), 0 states have call successors, (0), 0 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 09:38:33,050 INFO L186 Difference]: Start difference. First operand has 413 places, 562 transitions, 6512 flow. Second operand 12 states and 2353 transitions. [2021-11-09 09:38:33,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 629 transitions, 7389 flow [2021-11-09 09:38:33,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 629 transitions, 7303 flow, removed 21 selfloop flow, removed 3 redundant places. [2021-11-09 09:38:33,765 INFO L242 Difference]: Finished difference. Result has 424 places, 570 transitions, 6804 flow [2021-11-09 09:38:33,766 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=6444, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6804, PETRI_PLACES=424, PETRI_TRANSITIONS=570} [2021-11-09 09:38:33,766 INFO L334 CegarLoopForPetriNet]: 208 programPoint places, 216 predicate places. [2021-11-09 09:38:33,766 INFO L470 AbstractCegarLoop]: Abstraction has has 424 places, 570 transitions, 6804 flow [2021-11-09 09:38:33,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 0 states have call successors, (0), 0 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 09:38:33,767 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:38:33,768 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:38:33,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-09 09:38:33,768 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 09:38:33,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:38:33,769 INFO L85 PathProgramCache]: Analyzing trace with hash -584186350, now seen corresponding path program 6 times [2021-11-09 09:38:33,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:38:33,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462467332] [2021-11-09 09:38:33,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:38:33,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:38:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:38:33,932 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-09 09:38:33,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:38:33,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462467332] [2021-11-09 09:38:33,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462467332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:38:33,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:38:33,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:38:33,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190785670] [2021-11-09 09:38:33,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:38:33,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:38:33,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:38:33,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:38:33,937 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 234 [2021-11-09 09:38:33,938 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 570 transitions, 6804 flow. Second operand has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 0 states have call successors, (0), 0 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 09:38:33,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:38:33,939 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 234 [2021-11-09 09:38:33,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand