./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i --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_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/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_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/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_cd31d53e-b097-401f-8f50-e2cfa89ee86b/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 1fe12ce8951e45860142b9cebaa325eef531c18fa917882c03ee5396afb187f5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:52:51,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:52:51,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:52:51,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:52:51,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:52:51,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:52:51,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:52:51,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:52:51,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:52:51,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:52:51,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:52:51,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:52:51,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:52:51,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:52:51,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:52:51,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:52:51,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:52:51,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:52:51,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:52:51,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:52:51,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:52:51,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:52:51,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:52:51,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:52:51,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:52:51,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:52:51,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:52:51,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:52:51,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:52:51,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:52:51,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:52:51,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:52:51,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:52:51,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:52:51,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:52:51,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:52:51,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:52:51,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:52:51,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:52:51,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:52:51,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:52:51,459 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:52:51,490 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:52:51,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:52:51,495 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:52:51,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:52:51,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:52:51,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:52:51,505 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:52:51,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:52:51,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:52:51,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:52:51,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:52:51,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:52:51,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:52:51,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:52:51,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:52:51,509 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:52:51,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:52:51,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:52:51,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:52:51,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:52:51,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:52:51,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:52:51,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:52:51,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:52:51,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:52:51,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:52:51,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:52:51,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:52:51,513 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:52:51,515 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:52:51,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:52:51,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:52:51,517 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_cd31d53e-b097-401f-8f50-e2cfa89ee86b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe12ce8951e45860142b9cebaa325eef531c18fa917882c03ee5396afb187f5 [2021-11-09 09:52:51,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:52:51,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:52:51,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:52:51,869 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:52:51,870 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:52:51,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2021-11-09 09:52:51,967 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/data/c4e614a89/b1e2b48d5fb941a09f56141639781b42/FLAG2bae21c54 [2021-11-09 09:52:52,847 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:52:52,848 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2021-11-09 09:52:52,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/data/c4e614a89/b1e2b48d5fb941a09f56141639781b42/FLAG2bae21c54 [2021-11-09 09:52:53,032 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/data/c4e614a89/b1e2b48d5fb941a09f56141639781b42 [2021-11-09 09:52:53,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:52:53,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:52:53,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:52:53,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:52:53,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:52:53,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:53,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5447ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53, skipping insertion in model container [2021-11-09 09:52:53,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:53,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:52:53,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:52:53,733 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_cd31d53e-b097-401f-8f50-e2cfa89ee86b/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i[30176,30189] [2021-11-09 09:52:53,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:52:53,789 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:52:53,860 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_cd31d53e-b097-401f-8f50-e2cfa89ee86b/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i[30176,30189] [2021-11-09 09:52:53,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:52:53,953 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:52:53,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53 WrapperNode [2021-11-09 09:52:53,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:52:53,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:52:53,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:52:53,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:52:53,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:54,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:54,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:52:54,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:52:54,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:52:54,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:52:54,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:54,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:54,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:54,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:54,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:54,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:54,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:54,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:52:54,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:52:54,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:52:54,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:52:54,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (1/1) ... [2021-11-09 09:52:54,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:52:54,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:54,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:52:54,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 09:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 09:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-09 09:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-09 09:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-09 09:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:52:54,227 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 09:52:54,826 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:52:54,841 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-11-09 09:52:54,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:52:54 BoogieIcfgContainer [2021-11-09 09:52:54,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:52:54,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:52:54,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:52:54,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:52:54,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:52:53" (1/3) ... [2021-11-09 09:52:54,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3743396e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:52:54, skipping insertion in model container [2021-11-09 09:52:54,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:53" (2/3) ... [2021-11-09 09:52:54,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3743396e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:52:54, skipping insertion in model container [2021-11-09 09:52:54,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:52:54" (3/3) ... [2021-11-09 09:52:54,870 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_05-lockfuns_racefree.i [2021-11-09 09:52:54,877 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 09:52:54,877 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:52:54,878 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 09:52:54,878 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 09:52:54,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,926 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,927 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,929 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,930 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,930 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,930 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,945 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,957 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,958 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:54,975 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-09 09:52:55,055 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:52:55,067 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 09:52:55,068 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-09 09:52:55,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 99 transitions, 206 flow [2021-11-09 09:52:55,230 INFO L129 PetriNetUnfolder]: 17/133 cut-off events. [2021-11-09 09:52:55,231 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-09 09:52:55,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 133 events. 17/133 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 321 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 68. Up to 4 conditions per place. [2021-11-09 09:52:55,239 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 99 transitions, 206 flow [2021-11-09 09:52:55,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 94 transitions, 193 flow [2021-11-09 09:52:55,292 INFO L129 PetriNetUnfolder]: 4/64 cut-off events. [2021-11-09 09:52:55,292 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:52:55,293 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:52:55,294 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] [2021-11-09 09:52:55,294 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:52:55,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:55,304 INFO L85 PathProgramCache]: Analyzing trace with hash 218206499, now seen corresponding path program 1 times [2021-11-09 09:52:55,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:55,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559274201] [2021-11-09 09:52:55,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:55,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:55,692 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 09:52:55,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:52:55,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559274201] [2021-11-09 09:52:55,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559274201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:52:55,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:52:55,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:52:55,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738309966] [2021-11-09 09:52:55,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:52:55,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:52:55,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:52:55,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:52:55,730 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 99 [2021-11-09 09:52:55,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 94 transitions, 193 flow. Second operand has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:55,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:52:55,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 99 [2021-11-09 09:52:55,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:52:55,771 INFO L129 PetriNetUnfolder]: 0/110 cut-off events. [2021-11-09 09:52:55,771 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:52:55,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 110 events. 0/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 187 event pairs, 0 based on Foata normal form. 16/120 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-09 09:52:55,773 INFO L132 encePairwiseOnDemand]: 88/99 looper letters, 0 selfloop transitions, 0 changer transitions 13/82 dead transitions. [2021-11-09 09:52:55,773 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 82 transitions, 169 flow [2021-11-09 09:52:55,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:52:55,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-09 09:52:55,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 185 transitions. [2021-11-09 09:52:55,790 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9343434343434344 [2021-11-09 09:52:55,791 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 185 transitions. [2021-11-09 09:52:55,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 185 transitions. [2021-11-09 09:52:55,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:52:55,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 185 transitions. [2021-11-09 09:52:55,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:55,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:55,808 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:55,811 INFO L186 Difference]: Start difference. First operand has 86 places, 94 transitions, 193 flow. Second operand 2 states and 185 transitions. [2021-11-09 09:52:55,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 82 transitions, 169 flow [2021-11-09 09:52:55,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 82 transitions, 169 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:52:55,820 INFO L242 Difference]: Finished difference. Result has 86 places, 69 transitions, 143 flow [2021-11-09 09:52:55,823 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=143, PETRI_PLACES=86, PETRI_TRANSITIONS=69} [2021-11-09 09:52:55,824 INFO L334 CegarLoopForPetriNet]: 86 programPoint places, 0 predicate places. [2021-11-09 09:52:55,824 INFO L470 AbstractCegarLoop]: Abstraction has has 86 places, 69 transitions, 143 flow [2021-11-09 09:52:55,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:55,825 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:52:55,825 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] [2021-11-09 09:52:55,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:52:55,826 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:52:55,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:55,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1578744860, now seen corresponding path program 1 times [2021-11-09 09:52:55,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:55,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623578089] [2021-11-09 09:52:55,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:55,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:55,948 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 09:52:55,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:52:55,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623578089] [2021-11-09 09:52:55,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623578089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:52:55,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:52:55,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:52:55,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059693248] [2021-11-09 09:52:55,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:52:55,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:52:55,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:52:55,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:52:55,955 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2021-11-09 09:52:55,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 69 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:55,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:52:55,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2021-11-09 09:52:55,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:52:56,026 INFO L129 PetriNetUnfolder]: 0/73 cut-off events. [2021-11-09 09:52:56,026 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:52:56,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 73 events. 0/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-11-09 09:52:56,027 INFO L132 encePairwiseOnDemand]: 96/99 looper letters, 7 selfloop transitions, 2 changer transitions 0/71 dead transitions. [2021-11-09 09:52:56,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 71 transitions, 165 flow [2021-11-09 09:52:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:52:56,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 09:52:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2021-11-09 09:52:56,031 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8417508417508418 [2021-11-09 09:52:56,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2021-11-09 09:52:56,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2021-11-09 09:52:56,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:52:56,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2021-11-09 09:52:56,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:56,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:56,037 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:56,038 INFO L186 Difference]: Start difference. First operand has 86 places, 69 transitions, 143 flow. Second operand 3 states and 250 transitions. [2021-11-09 09:52:56,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 71 transitions, 165 flow [2021-11-09 09:52:56,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 71 transitions, 165 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:52:56,041 INFO L242 Difference]: Finished difference. Result has 76 places, 69 transitions, 151 flow [2021-11-09 09:52:56,042 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2021-11-09 09:52:56,042 INFO L334 CegarLoopForPetriNet]: 86 programPoint places, -10 predicate places. [2021-11-09 09:52:56,043 INFO L470 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 151 flow [2021-11-09 09:52:56,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:56,043 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:52:56,043 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-11-09 09:52:56,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:52:56,044 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:52:56,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:56,044 INFO L85 PathProgramCache]: Analyzing trace with hash -575902484, now seen corresponding path program 1 times [2021-11-09 09:52:56,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:56,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656438410] [2021-11-09 09:52:56,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:56,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:52:56,083 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:52:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:52:56,145 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:52:56,145 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 09:52:56,149 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 09:52:56,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:52:56,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 09:52:56,158 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-09 09:52:56,161 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-09 09:52:56,161 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-09 09:52:56,184 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,185 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,185 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,185 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,185 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,186 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,186 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,186 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,186 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,191 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,191 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,191 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,191 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,202 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,203 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,203 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,204 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,210 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,212 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,213 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,213 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,219 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,220 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,221 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,224 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,225 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,225 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:56,238 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-09 09:52:56,242 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:52:56,250 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 09:52:56,250 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-09 09:52:56,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 130 transitions, 278 flow [2021-11-09 09:52:56,306 INFO L129 PetriNetUnfolder]: 31/222 cut-off events. [2021-11-09 09:52:56,306 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-09 09:52:56,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 222 events. 31/222 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 642 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 135. Up to 8 conditions per place. [2021-11-09 09:52:56,310 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 130 transitions, 278 flow [2021-11-09 09:52:56,314 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 130 transitions, 278 flow [2021-11-09 09:52:56,326 INFO L129 PetriNetUnfolder]: 3/67 cut-off events. [2021-11-09 09:52:56,326 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:52:56,326 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:52:56,326 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] [2021-11-09 09:52:56,327 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:52:56,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash -285722586, now seen corresponding path program 1 times [2021-11-09 09:52:56,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:56,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310257342] [2021-11-09 09:52:56,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:56,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:56,438 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 09:52:56,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:52:56,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310257342] [2021-11-09 09:52:56,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310257342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:52:56,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:52:56,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:52:56,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092687889] [2021-11-09 09:52:56,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:52:56,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:52:56,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:52:56,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:52:56,446 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 130 [2021-11-09 09:52:56,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 130 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:56,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:52:56,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 130 [2021-11-09 09:52:56,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:52:56,525 INFO L129 PetriNetUnfolder]: 2/175 cut-off events. [2021-11-09 09:52:56,525 INFO L130 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2021-11-09 09:52:56,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 175 events. 2/175 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 396 event pairs, 0 based on Foata normal form. 61/228 useless extension candidates. Maximal degree in co-relation 112. Up to 11 conditions per place. [2021-11-09 09:52:56,530 INFO L132 encePairwiseOnDemand]: 110/130 looper letters, 9 selfloop transitions, 2 changer transitions 19/116 dead transitions. [2021-11-09 09:52:56,531 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 116 transitions, 272 flow [2021-11-09 09:52:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:52:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 09:52:56,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2021-11-09 09:52:56,542 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-11-09 09:52:56,542 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2021-11-09 09:52:56,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2021-11-09 09:52:56,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:52:56,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2021-11-09 09:52:56,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:56,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:56,552 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:56,552 INFO L186 Difference]: Start difference. First operand has 116 places, 130 transitions, 278 flow. Second operand 3 states and 351 transitions. [2021-11-09 09:52:56,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 116 transitions, 272 flow [2021-11-09 09:52:56,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 116 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:52:56,563 INFO L242 Difference]: Finished difference. Result has 118 places, 94 transitions, 210 flow [2021-11-09 09:52:56,564 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=118, PETRI_TRANSITIONS=94} [2021-11-09 09:52:56,564 INFO L334 CegarLoopForPetriNet]: 116 programPoint places, 2 predicate places. [2021-11-09 09:52:56,564 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 94 transitions, 210 flow [2021-11-09 09:52:56,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:56,564 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:52:56,564 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] [2021-11-09 09:52:56,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 09:52:56,565 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:52:56,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:56,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1606571610, now seen corresponding path program 1 times [2021-11-09 09:52:56,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:56,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673382700] [2021-11-09 09:52:56,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:56,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:52:56,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:52:56,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673382700] [2021-11-09 09:52:56,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673382700] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:52:56,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399337654] [2021-11-09 09:52:56,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:56,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:52:56,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:56,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:52:56,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 09:52:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:56,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:52:56,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:52:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:52:57,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399337654] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:52:57,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:52:57,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-11-09 09:52:57,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461329180] [2021-11-09 09:52:57,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:52:57,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:52:57,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:52:57,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:52:57,112 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 130 [2021-11-09 09:52:57,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 94 transitions, 210 flow. Second operand has 7 states, 7 states have (on average 105.85714285714286) internal successors, (741), 7 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:57,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:52:57,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 130 [2021-11-09 09:52:57,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:52:57,215 INFO L129 PetriNetUnfolder]: 0/106 cut-off events. [2021-11-09 09:52:57,215 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-11-09 09:52:57,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 106 events. 0/106 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 133 event pairs, 0 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-11-09 09:52:57,216 INFO L132 encePairwiseOnDemand]: 125/130 looper letters, 10 selfloop transitions, 5 changer transitions 0/100 dead transitions. [2021-11-09 09:52:57,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 100 transitions, 252 flow [2021-11-09 09:52:57,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:52:57,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-09 09:52:57,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 640 transitions. [2021-11-09 09:52:57,222 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2021-11-09 09:52:57,222 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 640 transitions. [2021-11-09 09:52:57,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 640 transitions. [2021-11-09 09:52:57,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:52:57,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 640 transitions. [2021-11-09 09:52:57,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.66666666666667) internal successors, (640), 6 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:57,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:57,232 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:57,232 INFO L186 Difference]: Start difference. First operand has 118 places, 94 transitions, 210 flow. Second operand 6 states and 640 transitions. [2021-11-09 09:52:57,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 100 transitions, 252 flow [2021-11-09 09:52:57,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 100 transitions, 248 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-11-09 09:52:57,242 INFO L242 Difference]: Finished difference. Result has 108 places, 96 transitions, 232 flow [2021-11-09 09:52:57,243 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=108, PETRI_TRANSITIONS=96} [2021-11-09 09:52:57,243 INFO L334 CegarLoopForPetriNet]: 116 programPoint places, -8 predicate places. [2021-11-09 09:52:57,243 INFO L470 AbstractCegarLoop]: Abstraction has has 108 places, 96 transitions, 232 flow [2021-11-09 09:52:57,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 105.85714285714286) internal successors, (741), 7 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:57,245 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:52:57,246 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2021-11-09 09:52:57,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:52:57,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:52:57,473 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:52:57,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:57,473 INFO L85 PathProgramCache]: Analyzing trace with hash -444521239, now seen corresponding path program 1 times [2021-11-09 09:52:57,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:57,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242532306] [2021-11-09 09:52:57,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:57,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:52:57,505 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:52:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:52:57,564 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:52:57,564 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 09:52:57,564 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 09:52:57,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:52:57,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 09:52:57,577 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-09 09:52:57,578 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-09 09:52:57,578 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-09 09:52:57,597 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,597 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,597 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,598 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,598 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,598 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,598 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,599 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,599 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,599 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,599 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,600 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,600 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,600 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,600 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,600 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,601 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,601 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,601 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,602 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,602 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,602 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,602 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,602 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,603 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,603 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,603 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,603 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,604 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,604 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,604 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,604 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,604 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,605 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,605 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,605 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,605 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,606 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,606 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,606 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,607 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,607 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,607 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,607 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,607 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,608 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,608 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,608 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,608 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,608 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,609 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,609 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,609 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,609 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,612 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,612 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,612 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,612 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,613 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,613 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,613 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,613 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,613 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,614 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,614 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,614 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,614 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,615 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,615 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,615 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,615 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,616 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,616 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,616 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,616 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,616 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,624 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,626 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,628 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,630 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,633 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,633 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,633 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,633 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:52:57,639 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-09 09:52:57,641 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:52:57,643 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 09:52:57,655 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-09 09:52:57,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 161 transitions, 352 flow [2021-11-09 09:52:57,735 INFO L129 PetriNetUnfolder]: 50/342 cut-off events. [2021-11-09 09:52:57,736 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-11-09 09:52:57,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 342 events. 50/342 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1117 event pairs, 1 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 230. Up to 16 conditions per place. [2021-11-09 09:52:57,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 161 transitions, 352 flow [2021-11-09 09:52:57,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 161 transitions, 352 flow [2021-11-09 09:52:57,757 INFO L129 PetriNetUnfolder]: 4/70 cut-off events. [2021-11-09 09:52:57,757 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:52:57,757 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:52:57,758 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] [2021-11-09 09:52:57,758 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:52:57,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:57,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1129191769, now seen corresponding path program 1 times [2021-11-09 09:52:57,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:57,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721977526] [2021-11-09 09:52:57,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:57,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:57,809 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 09:52:57,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:52:57,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721977526] [2021-11-09 09:52:57,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721977526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:52:57,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:52:57,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:52:57,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769158049] [2021-11-09 09:52:57,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:52:57,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:52:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:52:57,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:52:57,814 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 161 [2021-11-09 09:52:57,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 161 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:57,816 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:52:57,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 161 [2021-11-09 09:52:57,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:52:57,935 INFO L129 PetriNetUnfolder]: 7/280 cut-off events. [2021-11-09 09:52:57,935 INFO L130 PetriNetUnfolder]: For 19/24 co-relation queries the response was YES. [2021-11-09 09:52:57,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 280 events. 7/280 cut-off events. For 19/24 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 871 event pairs, 1 based on Foata normal form. 131/397 useless extension candidates. Maximal degree in co-relation 201. Up to 16 conditions per place. [2021-11-09 09:52:57,938 INFO L132 encePairwiseOnDemand]: 135/161 looper letters, 9 selfloop transitions, 2 changer transitions 20/141 dead transitions. [2021-11-09 09:52:57,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 334 flow [2021-11-09 09:52:57,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:52:57,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 09:52:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 432 transitions. [2021-11-09 09:52:57,941 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8944099378881988 [2021-11-09 09:52:57,941 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 432 transitions. [2021-11-09 09:52:57,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 432 transitions. [2021-11-09 09:52:57,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:52:57,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 432 transitions. [2021-11-09 09:52:57,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:57,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:57,947 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:57,947 INFO L186 Difference]: Start difference. First operand has 142 places, 161 transitions, 352 flow. Second operand 3 states and 432 transitions. [2021-11-09 09:52:57,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 334 flow [2021-11-09 09:52:57,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 141 transitions, 334 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:52:57,957 INFO L242 Difference]: Finished difference. Result has 144 places, 118 transitions, 267 flow [2021-11-09 09:52:57,957 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=144, PETRI_TRANSITIONS=118} [2021-11-09 09:52:57,958 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 2 predicate places. [2021-11-09 09:52:57,958 INFO L470 AbstractCegarLoop]: Abstraction has has 144 places, 118 transitions, 267 flow [2021-11-09 09:52:57,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:57,959 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:52:57,959 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] [2021-11-09 09:52:57,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 09:52:57,959 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:52:57,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:57,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1925634652, now seen corresponding path program 1 times [2021-11-09 09:52:57,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:57,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142044498] [2021-11-09 09:52:57,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:57,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:58,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:52:58,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:52:58,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142044498] [2021-11-09 09:52:58,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142044498] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:52:58,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454596884] [2021-11-09 09:52:58,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:58,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:52:58,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:58,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:52:58,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 09:52:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:58,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:52:58,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:52:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:52:58,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454596884] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:52:58,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:52:58,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-11-09 09:52:58,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668311777] [2021-11-09 09:52:58,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:52:58,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:52:58,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:52:58,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:52:58,452 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 161 [2021-11-09 09:52:58,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 118 transitions, 267 flow. Second operand has 7 states, 7 states have (on average 130.85714285714286) internal successors, (916), 7 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:58,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:52:58,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 161 [2021-11-09 09:52:58,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:52:58,552 INFO L129 PetriNetUnfolder]: 0/150 cut-off events. [2021-11-09 09:52:58,553 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-11-09 09:52:58,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 150 events. 0/150 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 281 event pairs, 0 based on Foata normal form. 1/151 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2021-11-09 09:52:58,554 INFO L132 encePairwiseOnDemand]: 156/161 looper letters, 12 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2021-11-09 09:52:58,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 126 transitions, 319 flow [2021-11-09 09:52:58,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:52:58,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-09 09:52:58,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 792 transitions. [2021-11-09 09:52:58,558 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8198757763975155 [2021-11-09 09:52:58,558 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 792 transitions. [2021-11-09 09:52:58,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 792 transitions. [2021-11-09 09:52:58,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:52:58,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 792 transitions. [2021-11-09 09:52:58,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:58,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:58,567 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:58,567 INFO L186 Difference]: Start difference. First operand has 144 places, 118 transitions, 267 flow. Second operand 6 states and 792 transitions. [2021-11-09 09:52:58,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 126 transitions, 319 flow [2021-11-09 09:52:58,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 126 transitions, 311 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-11-09 09:52:58,574 INFO L242 Difference]: Finished difference. Result has 134 places, 121 transitions, 291 flow [2021-11-09 09:52:58,574 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=134, PETRI_TRANSITIONS=121} [2021-11-09 09:52:58,575 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, -8 predicate places. [2021-11-09 09:52:58,575 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 121 transitions, 291 flow [2021-11-09 09:52:58,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 130.85714285714286) internal successors, (916), 7 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:58,576 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:52:58,576 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-11-09 09:52:58,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:52:58,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-09 09:52:58,789 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:52:58,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:58,790 INFO L85 PathProgramCache]: Analyzing trace with hash 2063166050, now seen corresponding path program 1 times [2021-11-09 09:52:58,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:58,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624829033] [2021-11-09 09:52:58,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:58,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:58,938 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-09 09:52:58,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:52:58,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624829033] [2021-11-09 09:52:58,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624829033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:52:58,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:52:58,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:52:58,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181352548] [2021-11-09 09:52:58,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:52:58,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:52:58,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:52:58,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:52:58,944 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2021-11-09 09:52:58,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 121 transitions, 291 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:58,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:52:58,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2021-11-09 09:52:58,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:00,602 INFO L129 PetriNetUnfolder]: 2290/6889 cut-off events. [2021-11-09 09:53:00,602 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-11-09 09:53:00,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10346 conditions, 6889 events. 2290/6889 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 69418 event pairs, 1398 based on Foata normal form. 150/6901 useless extension candidates. Maximal degree in co-relation 10283. Up to 2073 conditions per place. [2021-11-09 09:53:00,700 INFO L132 encePairwiseOnDemand]: 154/161 looper letters, 19 selfloop transitions, 4 changer transitions 41/168 dead transitions. [2021-11-09 09:53:00,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 168 transitions, 513 flow [2021-11-09 09:53:00,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:53:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 09:53:00,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2021-11-09 09:53:00,705 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7976929902395741 [2021-11-09 09:53:00,705 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2021-11-09 09:53:00,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2021-11-09 09:53:00,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:00,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2021-11-09 09:53:00,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.42857142857142) internal successors, (899), 7 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:00,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:00,716 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:00,716 INFO L186 Difference]: Start difference. First operand has 134 places, 121 transitions, 291 flow. Second operand 7 states and 899 transitions. [2021-11-09 09:53:00,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 168 transitions, 513 flow [2021-11-09 09:53:00,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 168 transitions, 507 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-11-09 09:53:00,723 INFO L242 Difference]: Finished difference. Result has 143 places, 124 transitions, 331 flow [2021-11-09 09:53:00,724 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=331, PETRI_PLACES=143, PETRI_TRANSITIONS=124} [2021-11-09 09:53:00,724 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 1 predicate places. [2021-11-09 09:53:00,724 INFO L470 AbstractCegarLoop]: Abstraction has has 143 places, 124 transitions, 331 flow [2021-11-09 09:53:00,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:00,725 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:00,725 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 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] [2021-11-09 09:53:00,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 09:53:00,726 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:00,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:00,727 INFO L85 PathProgramCache]: Analyzing trace with hash -103892320, now seen corresponding path program 1 times [2021-11-09 09:53:00,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:00,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456048577] [2021-11-09 09:53:00,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:00,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:53:00,771 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:53:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:53:00,850 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:53:00,850 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 09:53:00,850 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 09:53:00,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:53:00,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 09:53:00,851 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-09 09:53:00,851 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-09 09:53:00,859 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-09 09:53:00,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,882 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,882 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,883 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,883 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,888 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,888 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,888 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,888 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,888 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,889 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,889 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,890 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,891 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,891 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,891 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,891 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,891 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,891 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,892 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,892 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,892 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,892 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,892 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,892 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,893 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,893 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,893 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,893 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,893 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,897 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,897 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,897 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,897 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,898 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,898 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,898 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,898 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,898 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,898 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,899 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,899 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,899 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,899 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,899 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,901 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,901 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,901 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,901 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,901 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,902 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,902 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,902 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,902 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,909 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,909 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,909 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,910 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,912 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,917 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,918 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,919 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,920 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,920 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,921 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,921 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,921 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,923 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,923 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,924 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,924 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,927 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,927 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,927 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,928 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,928 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,928 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,928 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,929 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,929 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,931 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,932 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:00,945 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-09 09:53:01,003 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:53:01,004 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 09:53:01,004 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-09 09:53:01,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 168 places, 192 transitions, 428 flow [2021-11-09 09:53:01,123 INFO L129 PetriNetUnfolder]: 81/526 cut-off events. [2021-11-09 09:53:01,124 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-11-09 09:53:01,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 526 events. 81/526 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1937 event pairs, 6 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 362. Up to 32 conditions per place. [2021-11-09 09:53:01,133 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 192 transitions, 428 flow [2021-11-09 09:53:01,143 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 192 transitions, 428 flow [2021-11-09 09:53:01,150 INFO L129 PetriNetUnfolder]: 5/66 cut-off events. [2021-11-09 09:53:01,150 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:53:01,150 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:01,150 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] [2021-11-09 09:53:01,151 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:01,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:01,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1982766246, now seen corresponding path program 1 times [2021-11-09 09:53:01,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:01,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658559267] [2021-11-09 09:53:01,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:01,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:01,190 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 09:53:01,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:01,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658559267] [2021-11-09 09:53:01,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658559267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:53:01,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:53:01,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:53:01,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255498645] [2021-11-09 09:53:01,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:53:01,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:01,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:53:01,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:53:01,196 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 192 [2021-11-09 09:53:01,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 192 transitions, 428 flow. Second operand has 2 states, 2 states have (on average 162.5) internal successors, (325), 2 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:01,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 192 [2021-11-09 09:53:01,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:01,300 INFO L129 PetriNetUnfolder]: 21/461 cut-off events. [2021-11-09 09:53:01,300 INFO L130 PetriNetUnfolder]: For 48/55 co-relation queries the response was YES. [2021-11-09 09:53:01,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 461 events. 21/461 cut-off events. For 48/55 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1820 event pairs, 6 based on Foata normal form. 60/495 useless extension candidates. Maximal degree in co-relation 511. Up to 32 conditions per place. [2021-11-09 09:53:01,306 INFO L132 encePairwiseOnDemand]: 163/192 looper letters, 0 selfloop transitions, 0 changer transitions 21/162 dead transitions. [2021-11-09 09:53:01,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 162 transitions, 368 flow [2021-11-09 09:53:01,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:53:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-09 09:53:01,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 353 transitions. [2021-11-09 09:53:01,309 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9192708333333334 [2021-11-09 09:53:01,310 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 353 transitions. [2021-11-09 09:53:01,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 353 transitions. [2021-11-09 09:53:01,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:01,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 353 transitions. [2021-11-09 09:53:01,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 176.5) internal successors, (353), 2 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,314 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,315 INFO L186 Difference]: Start difference. First operand has 168 places, 192 transitions, 428 flow. Second operand 2 states and 353 transitions. [2021-11-09 09:53:01,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 162 transitions, 368 flow [2021-11-09 09:53:01,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 162 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:53:01,324 INFO L242 Difference]: Finished difference. Result has 168 places, 141 transitions, 314 flow [2021-11-09 09:53:01,324 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=314, PETRI_PLACES=168, PETRI_TRANSITIONS=141} [2021-11-09 09:53:01,325 INFO L334 CegarLoopForPetriNet]: 168 programPoint places, 0 predicate places. [2021-11-09 09:53:01,325 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 141 transitions, 314 flow [2021-11-09 09:53:01,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 162.5) internal successors, (325), 2 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,326 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:01,373 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] [2021-11-09 09:53:01,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 09:53:01,374 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:01,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:01,374 INFO L85 PathProgramCache]: Analyzing trace with hash 185814887, now seen corresponding path program 1 times [2021-11-09 09:53:01,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:01,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688592540] [2021-11-09 09:53:01,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:01,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:01,405 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 09:53:01,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:01,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688592540] [2021-11-09 09:53:01,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688592540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:53:01,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:53:01,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:53:01,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556473244] [2021-11-09 09:53:01,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:53:01,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:01,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:53:01,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:53:01,410 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 192 [2021-11-09 09:53:01,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 141 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:01,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 192 [2021-11-09 09:53:01,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:01,468 INFO L129 PetriNetUnfolder]: 0/205 cut-off events. [2021-11-09 09:53:01,469 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-11-09 09:53:01,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 205 events. 0/205 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 486 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2021-11-09 09:53:01,470 INFO L132 encePairwiseOnDemand]: 189/192 looper letters, 9 selfloop transitions, 2 changer transitions 0/145 dead transitions. [2021-11-09 09:53:01,471 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 145 transitions, 344 flow [2021-11-09 09:53:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:53:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 09:53:01,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2021-11-09 09:53:01,474 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.828125 [2021-11-09 09:53:01,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 477 transitions. [2021-11-09 09:53:01,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 477 transitions. [2021-11-09 09:53:01,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:01,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 477 transitions. [2021-11-09 09:53:01,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,480 INFO L186 Difference]: Start difference. First operand has 168 places, 141 transitions, 314 flow. Second operand 3 states and 477 transitions. [2021-11-09 09:53:01,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 145 transitions, 344 flow [2021-11-09 09:53:01,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 145 transitions, 332 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-11-09 09:53:01,485 INFO L242 Difference]: Finished difference. Result has 154 places, 142 transitions, 314 flow [2021-11-09 09:53:01,486 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=154, PETRI_TRANSITIONS=142} [2021-11-09 09:53:01,487 INFO L334 CegarLoopForPetriNet]: 168 programPoint places, -14 predicate places. [2021-11-09 09:53:01,487 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 142 transitions, 314 flow [2021-11-09 09:53:01,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,488 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:01,488 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] [2021-11-09 09:53:01,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-09 09:53:01,488 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:01,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:01,489 INFO L85 PathProgramCache]: Analyzing trace with hash 541146241, now seen corresponding path program 1 times [2021-11-09 09:53:01,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:01,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953498167] [2021-11-09 09:53:01,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:01,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:53:01,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:01,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953498167] [2021-11-09 09:53:01,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953498167] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:53:01,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523831727] [2021-11-09 09:53:01,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:01,558 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:53:01,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:53:01,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:53:01,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 09:53:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:01,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:53:01,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:53:01,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:53:01,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523831727] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:53:01,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:53:01,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-11-09 09:53:01,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448278486] [2021-11-09 09:53:01,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:53:01,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:01,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:53:01,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:53:01,916 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 192 [2021-11-09 09:53:01,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 142 transitions, 314 flow. Second operand has 7 states, 7 states have (on average 155.85714285714286) internal successors, (1091), 7 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:01,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:01,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 192 [2021-11-09 09:53:01,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:02,009 INFO L129 PetriNetUnfolder]: 0/194 cut-off events. [2021-11-09 09:53:02,009 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-09 09:53:02,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 194 events. 0/194 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 430 event pairs, 0 based on Foata normal form. 1/195 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2021-11-09 09:53:02,011 INFO L132 encePairwiseOnDemand]: 187/192 looper letters, 12 selfloop transitions, 5 changer transitions 0/150 dead transitions. [2021-11-09 09:53:02,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 150 transitions, 366 flow [2021-11-09 09:53:02,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:53:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-09 09:53:02,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 942 transitions. [2021-11-09 09:53:02,016 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8177083333333334 [2021-11-09 09:53:02,016 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 942 transitions. [2021-11-09 09:53:02,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 942 transitions. [2021-11-09 09:53:02,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:02,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 942 transitions. [2021-11-09 09:53:02,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:02,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:02,026 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:02,026 INFO L186 Difference]: Start difference. First operand has 154 places, 142 transitions, 314 flow. Second operand 6 states and 942 transitions. [2021-11-09 09:53:02,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 150 transitions, 366 flow [2021-11-09 09:53:02,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 150 transitions, 364 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-09 09:53:02,032 INFO L242 Difference]: Finished difference. Result has 161 places, 145 transitions, 344 flow [2021-11-09 09:53:02,034 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=161, PETRI_TRANSITIONS=145} [2021-11-09 09:53:02,034 INFO L334 CegarLoopForPetriNet]: 168 programPoint places, -7 predicate places. [2021-11-09 09:53:02,034 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 145 transitions, 344 flow [2021-11-09 09:53:02,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 155.85714285714286) internal successors, (1091), 7 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:02,035 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:02,036 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-11-09 09:53:02,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 09:53:02,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-09 09:53:02,249 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:02,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:02,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1970344164, now seen corresponding path program 1 times [2021-11-09 09:53:02,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:02,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920125568] [2021-11-09 09:53:02,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:02,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-09 09:53:02,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:02,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920125568] [2021-11-09 09:53:02,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920125568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:53:02,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:53:02,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:53:02,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196158756] [2021-11-09 09:53:02,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:53:02,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:02,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:53:02,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:53:02,392 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 192 [2021-11-09 09:53:02,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 145 transitions, 344 flow. Second operand has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:02,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:02,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 192 [2021-11-09 09:53:02,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:11,394 INFO L129 PetriNetUnfolder]: 16625/43314 cut-off events. [2021-11-09 09:53:11,394 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-11-09 09:53:11,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65928 conditions, 43314 events. 16625/43314 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 1826. Compared 538904 event pairs, 11092 based on Foata normal form. 775/43349 useless extension candidates. Maximal degree in co-relation 65916. Up to 13933 conditions per place. [2021-11-09 09:53:12,161 INFO L132 encePairwiseOnDemand]: 184/192 looper letters, 24 selfloop transitions, 5 changer transitions 53/206 dead transitions. [2021-11-09 09:53:12,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 206 transitions, 630 flow [2021-11-09 09:53:12,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:53:12,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 09:53:12,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1064 transitions. [2021-11-09 09:53:12,168 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2021-11-09 09:53:12,168 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1064 transitions. [2021-11-09 09:53:12,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1064 transitions. [2021-11-09 09:53:12,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:12,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1064 transitions. [2021-11-09 09:53:12,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:12,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 192.0) internal successors, (1536), 8 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:12,184 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 192.0) internal successors, (1536), 8 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:12,184 INFO L186 Difference]: Start difference. First operand has 161 places, 145 transitions, 344 flow. Second operand 7 states and 1064 transitions. [2021-11-09 09:53:12,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 206 transitions, 630 flow [2021-11-09 09:53:12,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 206 transitions, 624 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-11-09 09:53:12,193 INFO L242 Difference]: Finished difference. Result has 170 places, 149 transitions, 395 flow [2021-11-09 09:53:12,193 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=395, PETRI_PLACES=170, PETRI_TRANSITIONS=149} [2021-11-09 09:53:12,194 INFO L334 CegarLoopForPetriNet]: 168 programPoint places, 2 predicate places. [2021-11-09 09:53:12,195 INFO L470 AbstractCegarLoop]: Abstraction has has 170 places, 149 transitions, 395 flow [2021-11-09 09:53:12,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:12,197 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:12,197 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-11-09 09:53:12,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 09:53:12,198 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:12,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1053313334, now seen corresponding path program 1 times [2021-11-09 09:53:12,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:12,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624680022] [2021-11-09 09:53:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:12,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:53:12,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:12,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624680022] [2021-11-09 09:53:12,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624680022] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:53:12,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252221162] [2021-11-09 09:53:12,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:12,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:53:12,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:53:12,317 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:53:12,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 09:53:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:12,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:53:12,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:53:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:53:12,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252221162] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:53:12,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:53:12,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-09 09:53:12,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745180669] [2021-11-09 09:53:12,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:53:12,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:12,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:53:12,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:53:12,773 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 192 [2021-11-09 09:53:12,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 149 transitions, 395 flow. Second operand has 9 states, 9 states have (on average 156.0) internal successors, (1404), 9 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 09:53:12,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:12,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 192 [2021-11-09 09:53:12,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:13,095 INFO L129 PetriNetUnfolder]: 128/981 cut-off events. [2021-11-09 09:53:13,096 INFO L130 PetriNetUnfolder]: For 318/326 co-relation queries the response was YES. [2021-11-09 09:53:13,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1594 conditions, 981 events. 128/981 cut-off events. For 318/326 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6560 event pairs, 72 based on Foata normal form. 1/968 useless extension candidates. Maximal degree in co-relation 1577. Up to 166 conditions per place. [2021-11-09 09:53:13,125 INFO L132 encePairwiseOnDemand]: 187/192 looper letters, 14 selfloop transitions, 8 changer transitions 0/159 dead transitions. [2021-11-09 09:53:13,126 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 159 transitions, 469 flow [2021-11-09 09:53:13,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:53:13,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-09 09:53:13,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1409 transitions. [2021-11-09 09:53:13,132 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8153935185185185 [2021-11-09 09:53:13,133 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1409 transitions. [2021-11-09 09:53:13,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1409 transitions. [2021-11-09 09:53:13,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:13,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1409 transitions. [2021-11-09 09:53:13,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 156.55555555555554) internal successors, (1409), 9 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:13,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 192.0) internal successors, (1920), 10 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:13,148 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 192.0) internal successors, (1920), 10 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:13,148 INFO L186 Difference]: Start difference. First operand has 170 places, 149 transitions, 395 flow. Second operand 9 states and 1409 transitions. [2021-11-09 09:53:13,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 159 transitions, 469 flow [2021-11-09 09:53:13,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 159 transitions, 460 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-11-09 09:53:13,164 INFO L242 Difference]: Finished difference. Result has 174 places, 152 transitions, 430 flow [2021-11-09 09:53:13,165 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=430, PETRI_PLACES=174, PETRI_TRANSITIONS=152} [2021-11-09 09:53:13,165 INFO L334 CegarLoopForPetriNet]: 168 programPoint places, 6 predicate places. [2021-11-09 09:53:13,166 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 152 transitions, 430 flow [2021-11-09 09:53:13,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 156.0) internal successors, (1404), 9 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 09:53:13,167 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:13,168 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 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] [2021-11-09 09:53:13,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 09:53:13,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:53:13,393 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:13,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:13,394 INFO L85 PathProgramCache]: Analyzing trace with hash -599330319, now seen corresponding path program 1 times [2021-11-09 09:53:13,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:13,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086689973] [2021-11-09 09:53:13,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:13,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:53:13,432 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:53:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:53:13,491 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:53:13,491 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 09:53:13,492 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 09:53:13,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:53:13,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-09 09:53:13,494 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-09 09:53:13,495 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-09 09:53:13,495 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-11-09 09:53:13,519 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,519 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,519 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,520 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,520 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,528 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,528 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,528 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,528 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,528 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,529 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,529 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,529 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,529 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,530 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,530 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,530 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,530 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,530 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,535 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,535 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,535 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,538 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,538 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,538 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,538 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,539 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,539 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,546 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,546 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,546 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,546 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,547 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,547 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,547 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,548 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,549 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,550 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,550 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,550 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,550 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,550 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,551 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,551 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,551 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,551 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,552 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,553 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,554 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,554 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,554 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,555 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,555 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,555 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,556 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,557 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,558 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,558 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,558 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,558 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,558 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,559 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,559 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,559 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,559 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,559 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,560 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,560 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,560 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,560 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,561 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,561 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,561 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,561 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,561 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,562 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,562 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,562 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,563 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,563 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,563 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,563 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,564 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,564 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,564 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,565 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,566 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,567 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,567 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,567 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,567 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,568 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,568 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,568 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,568 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,571 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,571 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,571 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,573 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,574 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,574 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,575 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,575 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,575 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,575 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,576 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,576 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,576 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,589 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,590 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,590 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,590 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,591 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,591 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,591 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,591 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,591 WARN L322 ript$VariableManager]: TermVariabe t_funThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:13,600 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-11-09 09:53:13,602 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:53:13,603 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 09:53:13,603 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-09 09:53:13,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 194 places, 223 transitions, 506 flow [2021-11-09 09:53:13,880 INFO L129 PetriNetUnfolder]: 140/842 cut-off events. [2021-11-09 09:53:13,880 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2021-11-09 09:53:13,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 842 events. 140/842 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3722 event pairs, 23 based on Foata normal form. 0/712 useless extension candidates. Maximal degree in co-relation 571. Up to 80 conditions per place. [2021-11-09 09:53:13,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 194 places, 223 transitions, 506 flow [2021-11-09 09:53:13,904 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 194 places, 223 transitions, 506 flow [2021-11-09 09:53:13,909 INFO L129 PetriNetUnfolder]: 5/67 cut-off events. [2021-11-09 09:53:13,909 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:53:13,909 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:13,910 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] [2021-11-09 09:53:13,910 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:13,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:13,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1161281445, now seen corresponding path program 1 times [2021-11-09 09:53:13,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:13,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79720342] [2021-11-09 09:53:13,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:13,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:13,931 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 09:53:13,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:13,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79720342] [2021-11-09 09:53:13,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79720342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:53:13,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:53:13,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:53:13,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788970219] [2021-11-09 09:53:13,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:53:13,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:13,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:53:13,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:53:13,936 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 223 [2021-11-09 09:53:13,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 223 transitions, 506 flow. Second operand has 2 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:13,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:13,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 223 [2021-11-09 09:53:13,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:14,120 INFO L129 PetriNetUnfolder]: 54/750 cut-off events. [2021-11-09 09:53:14,120 INFO L130 PetriNetUnfolder]: For 110/119 co-relation queries the response was YES. [2021-11-09 09:53:14,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 750 events. 54/750 cut-off events. For 110/119 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3546 event pairs, 23 based on Foata normal form. 86/792 useless extension candidates. Maximal degree in co-relation 855. Up to 80 conditions per place. [2021-11-09 09:53:14,130 INFO L132 encePairwiseOnDemand]: 188/223 looper letters, 0 selfloop transitions, 0 changer transitions 22/187 dead transitions. [2021-11-09 09:53:14,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 187 transitions, 434 flow [2021-11-09 09:53:14,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:53:14,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-09 09:53:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 409 transitions. [2021-11-09 09:53:14,132 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9170403587443946 [2021-11-09 09:53:14,133 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 409 transitions. [2021-11-09 09:53:14,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 409 transitions. [2021-11-09 09:53:14,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:14,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 409 transitions. [2021-11-09 09:53:14,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 204.5) internal successors, (409), 2 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,137 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,138 INFO L186 Difference]: Start difference. First operand has 194 places, 223 transitions, 506 flow. Second operand 2 states and 409 transitions. [2021-11-09 09:53:14,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 187 transitions, 434 flow [2021-11-09 09:53:14,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 187 transitions, 434 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 09:53:14,144 INFO L242 Difference]: Finished difference. Result has 194 places, 165 transitions, 375 flow [2021-11-09 09:53:14,145 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=375, PETRI_PLACES=194, PETRI_TRANSITIONS=165} [2021-11-09 09:53:14,145 INFO L334 CegarLoopForPetriNet]: 194 programPoint places, 0 predicate places. [2021-11-09 09:53:14,145 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 165 transitions, 375 flow [2021-11-09 09:53:14,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,146 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:14,146 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] [2021-11-09 09:53:14,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-09 09:53:14,147 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:14,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:14,147 INFO L85 PathProgramCache]: Analyzing trace with hash -635669914, now seen corresponding path program 1 times [2021-11-09 09:53:14,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:14,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701120506] [2021-11-09 09:53:14,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:14,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:14,179 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 09:53:14,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:14,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701120506] [2021-11-09 09:53:14,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701120506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:53:14,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:53:14,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:53:14,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331333783] [2021-11-09 09:53:14,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:53:14,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:14,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:53:14,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:53:14,184 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 223 [2021-11-09 09:53:14,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 165 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:14,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 223 [2021-11-09 09:53:14,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:14,245 INFO L129 PetriNetUnfolder]: 0/249 cut-off events. [2021-11-09 09:53:14,246 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-11-09 09:53:14,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 249 events. 0/249 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 637 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2021-11-09 09:53:14,247 INFO L132 encePairwiseOnDemand]: 220/223 looper letters, 9 selfloop transitions, 2 changer transitions 0/169 dead transitions. [2021-11-09 09:53:14,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 169 transitions, 405 flow [2021-11-09 09:53:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:53:14,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 09:53:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 552 transitions. [2021-11-09 09:53:14,250 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8251121076233184 [2021-11-09 09:53:14,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 552 transitions. [2021-11-09 09:53:14,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 552 transitions. [2021-11-09 09:53:14,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:14,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 552 transitions. [2021-11-09 09:53:14,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,257 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,257 INFO L186 Difference]: Start difference. First operand has 194 places, 165 transitions, 375 flow. Second operand 3 states and 552 transitions. [2021-11-09 09:53:14,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 169 transitions, 405 flow [2021-11-09 09:53:14,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 169 transitions, 385 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-11-09 09:53:14,263 INFO L242 Difference]: Finished difference. Result has 180 places, 166 transitions, 367 flow [2021-11-09 09:53:14,264 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=367, PETRI_PLACES=180, PETRI_TRANSITIONS=166} [2021-11-09 09:53:14,264 INFO L334 CegarLoopForPetriNet]: 194 programPoint places, -14 predicate places. [2021-11-09 09:53:14,264 INFO L470 AbstractCegarLoop]: Abstraction has has 180 places, 166 transitions, 367 flow [2021-11-09 09:53:14,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,265 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:14,266 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] [2021-11-09 09:53:14,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-09 09:53:14,266 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:14,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:14,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1498803773, now seen corresponding path program 1 times [2021-11-09 09:53:14,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:14,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426866412] [2021-11-09 09:53:14,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:14,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:53:14,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:14,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426866412] [2021-11-09 09:53:14,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426866412] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:53:14,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913861333] [2021-11-09 09:53:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:14,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:53:14,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:53:14,326 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:53:14,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 09:53:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:14,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:53:14,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:53:14,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:53:14,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913861333] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:53:14,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:53:14,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-11-09 09:53:14,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277013047] [2021-11-09 09:53:14,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:53:14,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:14,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:53:14,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:53:14,695 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 223 [2021-11-09 09:53:14,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 166 transitions, 367 flow. Second operand has 7 states, 7 states have (on average 180.85714285714286) internal successors, (1266), 7 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:14,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 223 [2021-11-09 09:53:14,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:14,793 INFO L129 PetriNetUnfolder]: 0/238 cut-off events. [2021-11-09 09:53:14,794 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-11-09 09:53:14,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 238 events. 0/238 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 578 event pairs, 0 based on Foata normal form. 1/239 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2021-11-09 09:53:14,795 INFO L132 encePairwiseOnDemand]: 218/223 looper letters, 12 selfloop transitions, 5 changer transitions 0/174 dead transitions. [2021-11-09 09:53:14,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 174 transitions, 419 flow [2021-11-09 09:53:14,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:53:14,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-09 09:53:14,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1092 transitions. [2021-11-09 09:53:14,801 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8161434977578476 [2021-11-09 09:53:14,801 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1092 transitions. [2021-11-09 09:53:14,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1092 transitions. [2021-11-09 09:53:14,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:14,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1092 transitions. [2021-11-09 09:53:14,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,812 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 223.0) internal successors, (1561), 7 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,813 INFO L186 Difference]: Start difference. First operand has 180 places, 166 transitions, 367 flow. Second operand 6 states and 1092 transitions. [2021-11-09 09:53:14,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 174 transitions, 419 flow [2021-11-09 09:53:14,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 174 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-09 09:53:14,819 INFO L242 Difference]: Finished difference. Result has 187 places, 169 transitions, 397 flow [2021-11-09 09:53:14,820 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=397, PETRI_PLACES=187, PETRI_TRANSITIONS=169} [2021-11-09 09:53:14,821 INFO L334 CegarLoopForPetriNet]: 194 programPoint places, -7 predicate places. [2021-11-09 09:53:14,821 INFO L470 AbstractCegarLoop]: Abstraction has has 187 places, 169 transitions, 397 flow [2021-11-09 09:53:14,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 180.85714285714286) internal successors, (1266), 7 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:14,822 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:14,823 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-11-09 09:53:14,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 09:53:15,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd31d53e-b097-401f-8f50-e2cfa89ee86b/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:53:15,049 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 09:53:15,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:15,050 INFO L85 PathProgramCache]: Analyzing trace with hash 602777429, now seen corresponding path program 1 times [2021-11-09 09:53:15,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:15,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335293158] [2021-11-09 09:53:15,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:15,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-09 09:53:15,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:15,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335293158] [2021-11-09 09:53:15,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335293158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:53:15,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:53:15,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:53:15,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524004044] [2021-11-09 09:53:15,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:53:15,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:15,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:53:15,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:53:15,130 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 223 [2021-11-09 09:53:15,132 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 169 transitions, 397 flow. Second operand has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:53:15,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:15,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 223 [2021-11-09 09:53:15,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand