./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF --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 f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:33:02,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:33:02,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:33:02,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:33:02,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:33:02,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:33:02,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:33:02,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:33:02,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:33:02,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:33:02,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:33:02,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:33:02,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:33:02,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:33:02,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:33:02,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:33:02,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:33:02,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:33:02,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:33:02,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:33:02,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:33:02,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:33:02,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:33:02,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:33:02,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:33:02,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:33:02,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:33:02,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:33:02,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:33:02,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:33:02,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:33:02,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:33:02,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:33:02,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:33:02,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:33:02,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:33:02,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:33:02,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:33:02,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:33:02,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:33:02,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:33:02,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 05:33:02,358 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:33:02,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:33:02,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:33:02,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:33:02,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:33:02,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:33:02,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:33:02,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:33:02,367 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:33:02,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:33:02,368 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:33:02,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:33:02,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:33:02,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:33:02,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:33:02,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:33:02,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:33:02,370 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:33:02,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:33:02,371 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:33:02,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:33:02,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:33:02,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:33:02,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:33:02,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:33:02,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:33:02,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:33:02,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:33:02,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:33:02,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:33:02,373 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:33:02,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:33:02,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:33:02,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:33:02,374 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_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d [2021-11-20 05:33:02,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:33:02,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:33:02,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:33:02,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:33:02,633 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:33:02,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2021-11-20 05:33:02,731 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/data/1170787bc/4bed9885465c4ddd946e66e228e69ed8/FLAG52b74078b [2021-11-20 05:33:03,200 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:33:03,200 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2021-11-20 05:33:03,207 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/data/1170787bc/4bed9885465c4ddd946e66e228e69ed8/FLAG52b74078b [2021-11-20 05:33:03,576 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/data/1170787bc/4bed9885465c4ddd946e66e228e69ed8 [2021-11-20 05:33:03,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:33:03,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:33:03,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:33:03,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:33:03,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:33:03,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:03,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c19e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03, skipping insertion in model container [2021-11-20 05:33:03,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:03,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:33:03,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:33:03,807 WARN L230 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_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2021-11-20 05:33:03,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:33:03,822 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:33:03,846 WARN L230 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_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2021-11-20 05:33:03,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:33:03,863 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:33:03,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03 WrapperNode [2021-11-20 05:33:03,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:33:03,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:33:03,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:33:03,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:33:03,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:03,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:03,935 INFO L137 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 193 [2021-11-20 05:33:03,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:33:03,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:33:03,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:33:03,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:33:03,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:03,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:03,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:03,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:03,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:03,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:03,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:04,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:33:04,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:33:04,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:33:04,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:33:04,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (1/1) ... [2021-11-20 05:33:04,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:33:04,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:33:04,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:33:04,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:33:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:33:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:33:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:33:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:33:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-20 05:33:04,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-20 05:33:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-20 05:33:04,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-20 05:33:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-20 05:33:04,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-20 05:33:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:33:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 05:33:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:33:04,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:33:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:33:04,087 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 05:33:04,204 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:33:04,206 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:33:04,607 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:33:04,621 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:33:04,622 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-20 05:33:04,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:33:04 BoogieIcfgContainer [2021-11-20 05:33:04,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:33:04,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:33:04,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:33:04,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:33:04,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:33:03" (1/3) ... [2021-11-20 05:33:04,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cec624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:33:04, skipping insertion in model container [2021-11-20 05:33:04,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:03" (2/3) ... [2021-11-20 05:33:04,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cec624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:33:04, skipping insertion in model container [2021-11-20 05:33:04,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:33:04" (3/3) ... [2021-11-20 05:33:04,633 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2021-11-20 05:33:04,637 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 05:33:04,638 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:33:04,638 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:33:04,638 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 05:33:04,683 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,683 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,683 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,684 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,684 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,684 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,685 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,685 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,685 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,685 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,686 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,686 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,687 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,687 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,688 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,689 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,690 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,690 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,690 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,690 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,691 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,691 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,691 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,691 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,692 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,693 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,693 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,693 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,694 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,694 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,694 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,700 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,700 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,700 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,701 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,701 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,701 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,701 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,702 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,702 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,702 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,703 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,703 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,704 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,706 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,706 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,707 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,707 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,708 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,709 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,709 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,710 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,710 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,726 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,726 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,726 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,726 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,727 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,727 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,727 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,727 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,728 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,728 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,728 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,728 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,729 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,729 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,729 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,729 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,730 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,730 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,730 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,730 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,730 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,731 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,731 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,731 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,731 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,732 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,732 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,732 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,732 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,733 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,733 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,733 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,733 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,734 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,734 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,734 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,734 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,738 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,741 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,741 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,741 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,742 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,742 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,742 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,744 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,757 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,758 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,758 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,758 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,759 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:33:04,762 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-20 05:33:04,850 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:33:04,863 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 [2021-11-20 05:33:04,863 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-20 05:33:04,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 279 places, 294 transitions, 612 flow [2021-11-20 05:33:05,010 INFO L129 PetriNetUnfolder]: 25/291 cut-off events. [2021-11-20 05:33:05,010 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-20 05:33:05,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 291 events. 25/291 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 179 event pairs, 0 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 234. Up to 2 conditions per place. [2021-11-20 05:33:05,015 INFO L82 GeneralOperation]: Start removeDead. Operand has 279 places, 294 transitions, 612 flow [2021-11-20 05:33:05,024 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 280 transitions, 578 flow [2021-11-20 05:33:05,093 INFO L129 PetriNetUnfolder]: 25/279 cut-off events. [2021-11-20 05:33:05,093 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-20 05:33:05,094 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:05,095 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:05,095 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 05:33:05,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:05,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1742839752, now seen corresponding path program 1 times [2021-11-20 05:33:05,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:05,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736656105] [2021-11-20 05:33:05,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:05,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:05,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:33:05,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:05,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736656105] [2021-11-20 05:33:05,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736656105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:05,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:05,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:33:05,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460594402] [2021-11-20 05:33:05,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:05,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 05:33:05,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:05,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 05:33:05,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:33:05,543 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 294 [2021-11-20 05:33:05,549 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 280 transitions, 578 flow. Second operand has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:05,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:05,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 294 [2021-11-20 05:33:05,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:05,617 INFO L129 PetriNetUnfolder]: 7/262 cut-off events. [2021-11-20 05:33:05,618 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-11-20 05:33:05,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 262 events. 7/262 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 164 event pairs, 0 based on Foata normal form. 24/268 useless extension candidates. Maximal degree in co-relation 221. Up to 7 conditions per place. [2021-11-20 05:33:05,621 INFO L132 encePairwiseOnDemand]: 276/294 looper letters, 6 selfloop transitions, 0 changer transitions 11/262 dead transitions. [2021-11-20 05:33:05,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 262 transitions, 554 flow [2021-11-20 05:33:05,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 05:33:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-20 05:33:05,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 562 transitions. [2021-11-20 05:33:05,643 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.95578231292517 [2021-11-20 05:33:05,643 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 562 transitions. [2021-11-20 05:33:05,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 562 transitions. [2021-11-20 05:33:05,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:05,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 562 transitions. [2021-11-20 05:33:05,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 281.0) internal successors, (562), 2 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:05,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:05,671 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:05,673 INFO L186 Difference]: Start difference. First operand has 265 places, 280 transitions, 578 flow. Second operand 2 states and 562 transitions. [2021-11-20 05:33:05,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 262 transitions, 554 flow [2021-11-20 05:33:05,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 262 transitions, 542 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-11-20 05:33:05,697 INFO L242 Difference]: Finished difference. Result has 260 places, 251 transitions, 508 flow [2021-11-20 05:33:05,703 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=508, PETRI_PLACES=260, PETRI_TRANSITIONS=251} [2021-11-20 05:33:05,707 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, -5 predicate places. [2021-11-20 05:33:05,708 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 251 transitions, 508 flow [2021-11-20 05:33:05,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:05,709 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:05,709 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:05,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:33:05,710 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 05:33:05,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:05,711 INFO L85 PathProgramCache]: Analyzing trace with hash -252625064, now seen corresponding path program 1 times [2021-11-20 05:33:05,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:05,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867883491] [2021-11-20 05:33:05,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:05,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:33:06,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:06,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867883491] [2021-11-20 05:33:06,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867883491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:06,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:33:06,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:33:06,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530932808] [2021-11-20 05:33:06,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:06,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:33:06,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:06,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:33:06,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:33:06,201 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 294 [2021-11-20 05:33:06,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 251 transitions, 508 flow. Second operand has 8 states, 8 states have (on average 177.75) internal successors, (1422), 8 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:06,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:06,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 294 [2021-11-20 05:33:06,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:06,917 INFO L129 PetriNetUnfolder]: 81/818 cut-off events. [2021-11-20 05:33:06,917 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-11-20 05:33:06,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1161 conditions, 818 events. 81/818 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2966 event pairs, 36 based on Foata normal form. 2/749 useless extension candidates. Maximal degree in co-relation 1158. Up to 121 conditions per place. [2021-11-20 05:33:06,928 INFO L132 encePairwiseOnDemand]: 269/294 looper letters, 94 selfloop transitions, 18 changer transitions 111/378 dead transitions. [2021-11-20 05:33:06,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 378 transitions, 1220 flow [2021-11-20 05:33:06,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:33:06,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-20 05:33:06,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2409 transitions. [2021-11-20 05:33:06,942 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.630298273155416 [2021-11-20 05:33:06,943 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2409 transitions. [2021-11-20 05:33:06,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2409 transitions. [2021-11-20 05:33:06,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:06,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2409 transitions. [2021-11-20 05:33:06,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 185.30769230769232) internal successors, (2409), 13 states have internal predecessors, (2409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:06,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 294.0) internal successors, (4116), 14 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:06,966 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 294.0) internal successors, (4116), 14 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:06,967 INFO L186 Difference]: Start difference. First operand has 260 places, 251 transitions, 508 flow. Second operand 13 states and 2409 transitions. [2021-11-20 05:33:06,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 378 transitions, 1220 flow [2021-11-20 05:33:06,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 378 transitions, 1220 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 05:33:06,981 INFO L242 Difference]: Finished difference. Result has 268 places, 255 transitions, 594 flow [2021-11-20 05:33:06,981 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=594, PETRI_PLACES=268, PETRI_TRANSITIONS=255} [2021-11-20 05:33:06,982 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 3 predicate places. [2021-11-20 05:33:06,982 INFO L470 AbstractCegarLoop]: Abstraction has has 268 places, 255 transitions, 594 flow [2021-11-20 05:33:06,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 177.75) internal successors, (1422), 8 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:06,984 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:06,984 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:06,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:33:06,985 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 05:33:06,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:06,986 INFO L85 PathProgramCache]: Analyzing trace with hash 955285944, now seen corresponding path program 1 times [2021-11-20 05:33:06,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:06,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254706963] [2021-11-20 05:33:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:06,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:07,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 05:33:07,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:07,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254706963] [2021-11-20 05:33:07,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254706963] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:07,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030566148] [2021-11-20 05:33:07,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:07,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:07,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:33:07,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:33:07,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:33:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:07,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:33:07,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:33:08,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 05:33:08,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:33:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 05:33:08,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030566148] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:08,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:33:08,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2021-11-20 05:33:08,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327601524] [2021-11-20 05:33:08,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:08,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:33:08,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:08,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:33:08,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:33:08,757 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 294 [2021-11-20 05:33:08,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 255 transitions, 594 flow. Second operand has 7 states, 7 states have (on average 215.71428571428572) internal successors, (1510), 7 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:08,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:08,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 294 [2021-11-20 05:33:08,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:08,955 INFO L129 PetriNetUnfolder]: 55/443 cut-off events. [2021-11-20 05:33:08,955 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2021-11-20 05:33:08,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 443 events. 55/443 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1026 event pairs, 27 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 666. Up to 97 conditions per place. [2021-11-20 05:33:08,960 INFO L132 encePairwiseOnDemand]: 286/294 looper letters, 71 selfloop transitions, 7 changer transitions 0/261 dead transitions. [2021-11-20 05:33:08,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 261 transitions, 764 flow [2021-11-20 05:33:08,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:33:08,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-20 05:33:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1524 transitions. [2021-11-20 05:33:08,966 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7405247813411079 [2021-11-20 05:33:08,966 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1524 transitions. [2021-11-20 05:33:08,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1524 transitions. [2021-11-20 05:33:08,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:08,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1524 transitions. [2021-11-20 05:33:08,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 217.71428571428572) internal successors, (1524), 7 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:08,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:08,980 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:08,980 INFO L186 Difference]: Start difference. First operand has 268 places, 255 transitions, 594 flow. Second operand 7 states and 1524 transitions. [2021-11-20 05:33:08,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 261 transitions, 764 flow [2021-11-20 05:33:08,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 261 transitions, 718 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-11-20 05:33:08,990 INFO L242 Difference]: Finished difference. Result has 260 places, 257 transitions, 581 flow [2021-11-20 05:33:08,991 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=581, PETRI_PLACES=260, PETRI_TRANSITIONS=257} [2021-11-20 05:33:08,991 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, -5 predicate places. [2021-11-20 05:33:08,992 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 257 transitions, 581 flow [2021-11-20 05:33:08,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 215.71428571428572) internal successors, (1510), 7 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:08,993 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:08,994 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:09,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:33:09,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:09,215 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 05:33:09,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:09,215 INFO L85 PathProgramCache]: Analyzing trace with hash 461159547, now seen corresponding path program 1 times [2021-11-20 05:33:09,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:09,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314485581] [2021-11-20 05:33:09,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:09,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:09,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:09,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:09,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314485581] [2021-11-20 05:33:09,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314485581] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:09,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656590074] [2021-11-20 05:33:09,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:09,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:09,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:33:09,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:33:09,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:33:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:09,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:33:09,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:33:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:10,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:33:10,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:10,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656590074] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:10,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:33:10,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2021-11-20 05:33:10,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086877786] [2021-11-20 05:33:10,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:10,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:33:10,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:10,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:33:10,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:33:10,637 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 294 [2021-11-20 05:33:10,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 257 transitions, 581 flow. Second operand has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:10,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:10,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 294 [2021-11-20 05:33:10,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:11,340 INFO L129 PetriNetUnfolder]: 1177/2432 cut-off events. [2021-11-20 05:33:11,340 INFO L130 PetriNetUnfolder]: For 1086/1524 co-relation queries the response was YES. [2021-11-20 05:33:11,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4946 conditions, 2432 events. 1177/2432 cut-off events. For 1086/1524 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 15069 event pairs, 287 based on Foata normal form. 438/2679 useless extension candidates. Maximal degree in co-relation 4938. Up to 498 conditions per place. [2021-11-20 05:33:11,371 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 133 selfloop transitions, 17 changer transitions 0/323 dead transitions. [2021-11-20 05:33:11,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 323 transitions, 1064 flow [2021-11-20 05:33:11,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:33:11,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:33:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2308 transitions. [2021-11-20 05:33:11,379 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7136672850958565 [2021-11-20 05:33:11,380 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2308 transitions. [2021-11-20 05:33:11,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2308 transitions. [2021-11-20 05:33:11,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:11,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2308 transitions. [2021-11-20 05:33:11,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 209.8181818181818) internal successors, (2308), 11 states have internal predecessors, (2308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:11,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:11,440 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:11,440 INFO L186 Difference]: Start difference. First operand has 260 places, 257 transitions, 581 flow. Second operand 11 states and 2308 transitions. [2021-11-20 05:33:11,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 323 transitions, 1064 flow [2021-11-20 05:33:11,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 323 transitions, 1051 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-20 05:33:11,461 INFO L242 Difference]: Finished difference. Result has 270 places, 268 transitions, 661 flow [2021-11-20 05:33:11,462 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=661, PETRI_PLACES=270, PETRI_TRANSITIONS=268} [2021-11-20 05:33:11,463 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 5 predicate places. [2021-11-20 05:33:11,464 INFO L470 AbstractCegarLoop]: Abstraction has has 270 places, 268 transitions, 661 flow [2021-11-20 05:33:11,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:11,465 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:11,465 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:11,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-20 05:33:11,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:11,690 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 05:33:11,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:11,691 INFO L85 PathProgramCache]: Analyzing trace with hash 994210303, now seen corresponding path program 2 times [2021-11-20 05:33:11,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:11,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954261994] [2021-11-20 05:33:11,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:11,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:11,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:11,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954261994] [2021-11-20 05:33:11,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954261994] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:11,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919151957] [2021-11-20 05:33:11,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:33:11,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:11,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:33:11,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:33:11,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:33:12,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:33:12,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:33:12,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 05:33:12,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:33:12,482 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 05:33:12,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:33:12,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919151957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:12,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:33:12,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2021-11-20 05:33:12,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792760827] [2021-11-20 05:33:12,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:12,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:33:12,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:12,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:33:12,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:33:12,488 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 294 [2021-11-20 05:33:12,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 268 transitions, 661 flow. Second operand has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:12,494 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:12,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 294 [2021-11-20 05:33:12,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:13,490 INFO L129 PetriNetUnfolder]: 1595/3269 cut-off events. [2021-11-20 05:33:13,490 INFO L130 PetriNetUnfolder]: For 2204/2762 co-relation queries the response was YES. [2021-11-20 05:33:13,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7319 conditions, 3269 events. 1595/3269 cut-off events. For 2204/2762 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 21784 event pairs, 576 based on Foata normal form. 559/3705 useless extension candidates. Maximal degree in co-relation 7307. Up to 1008 conditions per place. [2021-11-20 05:33:13,529 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 143 selfloop transitions, 14 changer transitions 10/347 dead transitions. [2021-11-20 05:33:13,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 347 transitions, 1236 flow [2021-11-20 05:33:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:33:13,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-20 05:33:13,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1844 transitions. [2021-11-20 05:33:13,536 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6969009826152683 [2021-11-20 05:33:13,536 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1844 transitions. [2021-11-20 05:33:13,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1844 transitions. [2021-11-20 05:33:13,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:13,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1844 transitions. [2021-11-20 05:33:13,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 204.88888888888889) internal successors, (1844), 9 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:13,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:13,550 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:13,550 INFO L186 Difference]: Start difference. First operand has 270 places, 268 transitions, 661 flow. Second operand 9 states and 1844 transitions. [2021-11-20 05:33:13,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 347 transitions, 1236 flow [2021-11-20 05:33:13,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 347 transitions, 1229 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-20 05:33:13,567 INFO L242 Difference]: Finished difference. Result has 280 places, 275 transitions, 750 flow [2021-11-20 05:33:13,568 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=750, PETRI_PLACES=280, PETRI_TRANSITIONS=275} [2021-11-20 05:33:13,569 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 15 predicate places. [2021-11-20 05:33:13,569 INFO L470 AbstractCegarLoop]: Abstraction has has 280 places, 275 transitions, 750 flow [2021-11-20 05:33:13,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:13,570 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:13,570 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:13,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:33:13,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:13,794 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 05:33:13,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:13,795 INFO L85 PathProgramCache]: Analyzing trace with hash 733892861, now seen corresponding path program 3 times [2021-11-20 05:33:13,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:13,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245530713] [2021-11-20 05:33:13,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:13,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:13,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:13,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245530713] [2021-11-20 05:33:13,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245530713] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:13,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296992254] [2021-11-20 05:33:13,940 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:33:13,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:13,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:33:13,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:33:13,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:33:14,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-20 05:33:14,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:33:14,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 05:33:14,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:33:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 05:33:14,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:33:14,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296992254] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:14,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:33:14,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2021-11-20 05:33:14,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793003591] [2021-11-20 05:33:14,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:14,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:33:14,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:14,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:33:14,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:33:14,524 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 294 [2021-11-20 05:33:14,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 275 transitions, 750 flow. Second operand has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:14,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:14,527 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 294 [2021-11-20 05:33:14,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:15,772 INFO L129 PetriNetUnfolder]: 2356/4851 cut-off events. [2021-11-20 05:33:15,772 INFO L130 PetriNetUnfolder]: For 4753/5565 co-relation queries the response was YES. [2021-11-20 05:33:15,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11584 conditions, 4851 events. 2356/4851 cut-off events. For 4753/5565 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 35107 event pairs, 875 based on Foata normal form. 805/5469 useless extension candidates. Maximal degree in co-relation 11566. Up to 1704 conditions per place. [2021-11-20 05:33:15,844 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 144 selfloop transitions, 14 changer transitions 10/348 dead transitions. [2021-11-20 05:33:15,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 348 transitions, 1387 flow [2021-11-20 05:33:15,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:33:15,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-20 05:33:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1827 transitions. [2021-11-20 05:33:15,944 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2021-11-20 05:33:15,944 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1827 transitions. [2021-11-20 05:33:15,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1827 transitions. [2021-11-20 05:33:15,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:15,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1827 transitions. [2021-11-20 05:33:15,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.0) internal successors, (1827), 9 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:15,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:15,961 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:15,961 INFO L186 Difference]: Start difference. First operand has 280 places, 275 transitions, 750 flow. Second operand 9 states and 1827 transitions. [2021-11-20 05:33:15,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 348 transitions, 1387 flow [2021-11-20 05:33:15,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 348 transitions, 1353 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-11-20 05:33:15,988 INFO L242 Difference]: Finished difference. Result has 286 places, 281 transitions, 837 flow [2021-11-20 05:33:15,988 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=837, PETRI_PLACES=286, PETRI_TRANSITIONS=281} [2021-11-20 05:33:15,991 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 21 predicate places. [2021-11-20 05:33:15,991 INFO L470 AbstractCegarLoop]: Abstraction has has 286 places, 281 transitions, 837 flow [2021-11-20 05:33:15,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:15,993 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:15,993 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:16,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:33:16,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 05:33:16,207 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 05:33:16,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:16,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1540889437, now seen corresponding path program 4 times [2021-11-20 05:33:16,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:16,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615438197] [2021-11-20 05:33:16,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:16,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:16,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:16,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615438197] [2021-11-20 05:33:16,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615438197] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:16,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645485143] [2021-11-20 05:33:16,372 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 05:33:16,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:16,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:33:16,373 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:33:16,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 05:33:16,485 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 05:33:16,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:33:16,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:33:16,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:33:17,122 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:17,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:33:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:17,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645485143] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:17,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:33:17,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2021-11-20 05:33:17,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551726287] [2021-11-20 05:33:17,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:17,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:33:17,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:17,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:33:17,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:33:17,874 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 294 [2021-11-20 05:33:17,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 281 transitions, 837 flow. Second operand has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:17,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:17,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 294 [2021-11-20 05:33:17,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:19,210 INFO L129 PetriNetUnfolder]: 2667/5224 cut-off events. [2021-11-20 05:33:19,210 INFO L130 PetriNetUnfolder]: For 7304/8271 co-relation queries the response was YES. [2021-11-20 05:33:19,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13525 conditions, 5224 events. 2667/5224 cut-off events. For 7304/8271 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 38142 event pairs, 289 based on Foata normal form. 964/6058 useless extension candidates. Maximal degree in co-relation 13504. Up to 1304 conditions per place. [2021-11-20 05:33:19,368 INFO L132 encePairwiseOnDemand]: 281/294 looper letters, 144 selfloop transitions, 37 changer transitions 0/354 dead transitions. [2021-11-20 05:33:19,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 354 transitions, 1490 flow [2021-11-20 05:33:19,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:33:19,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:33:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2320 transitions. [2021-11-20 05:33:19,385 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.717377860235003 [2021-11-20 05:33:19,386 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2320 transitions. [2021-11-20 05:33:19,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2320 transitions. [2021-11-20 05:33:19,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:19,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2320 transitions. [2021-11-20 05:33:19,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 210.9090909090909) internal successors, (2320), 11 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:19,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:19,404 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:19,404 INFO L186 Difference]: Start difference. First operand has 286 places, 281 transitions, 837 flow. Second operand 11 states and 2320 transitions. [2021-11-20 05:33:19,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 354 transitions, 1490 flow [2021-11-20 05:33:19,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 354 transitions, 1456 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-11-20 05:33:19,448 INFO L242 Difference]: Finished difference. Result has 293 places, 293 transitions, 1036 flow [2021-11-20 05:33:19,449 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1036, PETRI_PLACES=293, PETRI_TRANSITIONS=293} [2021-11-20 05:33:19,450 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 28 predicate places. [2021-11-20 05:33:19,450 INFO L470 AbstractCegarLoop]: Abstraction has has 293 places, 293 transitions, 1036 flow [2021-11-20 05:33:19,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:19,451 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:19,452 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:19,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:33:19,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 05:33:19,666 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 05:33:19,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:19,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2134251955, now seen corresponding path program 5 times [2021-11-20 05:33:19,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:19,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234612422] [2021-11-20 05:33:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:19,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:19,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:19,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:19,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234612422] [2021-11-20 05:33:19,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234612422] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:19,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087396084] [2021-11-20 05:33:19,812 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 05:33:19,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:19,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:33:19,814 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:33:19,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 05:33:19,937 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 05:33:19,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:33:19,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:33:19,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:33:20,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:20,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:33:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:20,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087396084] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:33:20,836 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:33:20,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 16 [2021-11-20 05:33:20,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58194456] [2021-11-20 05:33:20,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:33:20,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-20 05:33:20,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:20,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-20 05:33:20,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:33:20,845 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 294 [2021-11-20 05:33:20,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 293 transitions, 1036 flow. Second operand has 16 states, 16 states have (on average 199.3125) internal successors, (3189), 16 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:20,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:20,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 294 [2021-11-20 05:33:20,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:25,441 INFO L129 PetriNetUnfolder]: 10255/19257 cut-off events. [2021-11-20 05:33:25,442 INFO L130 PetriNetUnfolder]: For 36959/37273 co-relation queries the response was YES. [2021-11-20 05:33:25,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55679 conditions, 19257 events. 10255/19257 cut-off events. For 36959/37273 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 158881 event pairs, 745 based on Foata normal form. 20/19204 useless extension candidates. Maximal degree in co-relation 55656. Up to 1909 conditions per place. [2021-11-20 05:33:25,670 INFO L132 encePairwiseOnDemand]: 265/294 looper letters, 334 selfloop transitions, 134 changer transitions 0/635 dead transitions. [2021-11-20 05:33:25,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 635 transitions, 3612 flow [2021-11-20 05:33:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-20 05:33:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-11-20 05:33:25,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 5177 transitions. [2021-11-20 05:33:25,688 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7043537414965987 [2021-11-20 05:33:25,688 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 5177 transitions. [2021-11-20 05:33:25,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 5177 transitions. [2021-11-20 05:33:25,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:25,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 5177 transitions. [2021-11-20 05:33:25,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 207.08) internal successors, (5177), 25 states have internal predecessors, (5177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:25,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 294.0) internal successors, (7644), 26 states have internal predecessors, (7644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:25,726 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 294.0) internal successors, (7644), 26 states have internal predecessors, (7644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:25,726 INFO L186 Difference]: Start difference. First operand has 293 places, 293 transitions, 1036 flow. Second operand 25 states and 5177 transitions. [2021-11-20 05:33:25,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 635 transitions, 3612 flow [2021-11-20 05:33:26,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 635 transitions, 3516 flow, removed 16 selfloop flow, removed 6 redundant places. [2021-11-20 05:33:26,259 INFO L242 Difference]: Finished difference. Result has 327 places, 382 transitions, 2264 flow [2021-11-20 05:33:26,260 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=1000, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2264, PETRI_PLACES=327, PETRI_TRANSITIONS=382} [2021-11-20 05:33:26,260 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 62 predicate places. [2021-11-20 05:33:26,260 INFO L470 AbstractCegarLoop]: Abstraction has has 327 places, 382 transitions, 2264 flow [2021-11-20 05:33:26,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 199.3125) internal successors, (3189), 16 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:26,262 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:26,262 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:26,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:33:26,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:26,478 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 05:33:26,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:26,479 INFO L85 PathProgramCache]: Analyzing trace with hash 982030349, now seen corresponding path program 6 times [2021-11-20 05:33:26,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:26,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451795543] [2021-11-20 05:33:26,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:26,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:26,642 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:33:26,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:26,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451795543] [2021-11-20 05:33:26,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451795543] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:26,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26876472] [2021-11-20 05:33:26,643 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-20 05:33:26,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:26,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:33:26,650 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:33:26,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 05:33:26,757 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-20 05:33:26,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:33:26,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 05:33:26,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:33:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 05:33:27,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:33:27,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26876472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:33:27,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:33:27,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2021-11-20 05:33:27,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750767365] [2021-11-20 05:33:27,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:33:27,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:33:27,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:33:27,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:33:27,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:33:27,336 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 294 [2021-11-20 05:33:27,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 382 transitions, 2264 flow. Second operand has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:27,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:33:27,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 294 [2021-11-20 05:33:27,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:33:29,178 INFO L129 PetriNetUnfolder]: 4062/8531 cut-off events. [2021-11-20 05:33:29,178 INFO L130 PetriNetUnfolder]: For 35178/36279 co-relation queries the response was YES. [2021-11-20 05:33:29,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28969 conditions, 8531 events. 4062/8531 cut-off events. For 35178/36279 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 68784 event pairs, 1359 based on Foata normal form. 69/8388 useless extension candidates. Maximal degree in co-relation 28930. Up to 3043 conditions per place. [2021-11-20 05:33:29,457 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 200 selfloop transitions, 39 changer transitions 7/443 dead transitions. [2021-11-20 05:33:29,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 443 transitions, 3025 flow [2021-11-20 05:33:29,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:33:29,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-20 05:33:29,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1833 transitions. [2021-11-20 05:33:29,464 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6927437641723356 [2021-11-20 05:33:29,464 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1833 transitions. [2021-11-20 05:33:29,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1833 transitions. [2021-11-20 05:33:29,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:33:29,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1833 transitions. [2021-11-20 05:33:29,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.66666666666666) internal successors, (1833), 9 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:29,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:29,477 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:29,477 INFO L186 Difference]: Start difference. First operand has 327 places, 382 transitions, 2264 flow. Second operand 9 states and 1833 transitions. [2021-11-20 05:33:29,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 443 transitions, 3025 flow [2021-11-20 05:33:29,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 443 transitions, 2964 flow, removed 20 selfloop flow, removed 6 redundant places. [2021-11-20 05:33:29,737 INFO L242 Difference]: Finished difference. Result has 334 places, 387 transitions, 2391 flow [2021-11-20 05:33:29,738 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=2203, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2391, PETRI_PLACES=334, PETRI_TRANSITIONS=387} [2021-11-20 05:33:29,739 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 69 predicate places. [2021-11-20 05:33:29,739 INFO L470 AbstractCegarLoop]: Abstraction has has 334 places, 387 transitions, 2391 flow [2021-11-20 05:33:29,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:33:29,740 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:33:29,740 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:33:29,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 05:33:29,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:29,966 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 05:33:29,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:33:29,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1318242584, now seen corresponding path program 1 times [2021-11-20 05:33:29,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:33:29,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288102224] [2021-11-20 05:33:29,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:29,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:33:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:32,776 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 05:33:32,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:33:32,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288102224] [2021-11-20 05:33:32,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288102224] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:33:32,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086875795] [2021-11-20 05:33:32,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:33:32,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:33:32,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:33:32,780 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:33:32,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c66fd1-6a1f-47e5-80e8-2db1ce0736a9/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 05:33:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:33:32,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 106 conjunts are in the unsatisfiable core [2021-11-20 05:33:32,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:33:32,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 05:33:33,021 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 05:33:33,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-20 05:33:33,111 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-20 05:33:33,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2021-11-20 05:33:33,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:33,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:33,756 INFO L354 Elim1Store]: treesize reduction 42, result has 19.2 percent of original size [2021-11-20 05:33:33,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 37 [2021-11-20 05:33:34,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 05:33:35,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:35,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:35,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:35,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:35,585 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-11-20 05:33:35,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 05:33:36,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 05:33:37,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:37,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:37,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:37,653 INFO L354 Elim1Store]: treesize reduction 114, result has 28.7 percent of original size [2021-11-20 05:33:37,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 37 treesize of output 69 [2021-11-20 05:33:38,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 05:33:40,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:40,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:40,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:40,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:40,434 INFO L354 Elim1Store]: treesize reduction 48, result has 34.2 percent of original size [2021-11-20 05:33:40,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 36 treesize of output 46 [2021-11-20 05:33:41,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 05:33:42,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-20 05:33:42,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-20 05:33:43,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-20 05:33:43,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2021-11-20 05:33:44,845 INFO L354 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2021-11-20 05:33:44,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 59 treesize of output 56 [2021-11-20 05:33:48,088 INFO L354 Elim1Store]: treesize reduction 206, result has 3.3 percent of original size [2021-11-20 05:33:48,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 51 [2021-11-20 05:33:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 05:33:48,213 INFO L328 TraceCheckSpWp]: Computing backward predicates...