./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt --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 0226d468fdeb806ff8f020ed948853f1c2bdf1bf ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:58:51,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:58:51,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:58:51,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:58:51,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:58:51,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:58:51,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:58:51,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:58:51,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:58:51,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:58:51,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:58:51,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:58:51,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:58:51,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:58:51,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:58:51,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:58:51,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:58:51,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:58:51,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:58:51,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:58:51,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:58:51,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:58:51,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:58:51,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:58:51,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:58:51,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:58:51,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:58:51,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:58:51,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:58:51,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:58:51,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:58:51,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:58:51,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:58:51,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:58:51,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:58:51,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:58:51,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:58:51,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:58:51,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:58:51,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:58:51,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:58:51,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:58:51,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:58:51,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:58:51,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:58:51,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:58:51,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:58:51,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:58:51,505 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:58:51,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:58:51,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:58:51,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:58:51,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:58:51,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:58:51,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:58:51,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:58:51,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:58:51,508 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:58:51,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:58:51,508 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:58:51,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:58:51,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:58:51,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:58:51,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:58:51,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:58:51,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:58:51,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:58:51,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:58:51,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:58:51,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:58:51,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:58:51,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:58:51,512 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_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0226d468fdeb806ff8f020ed948853f1c2bdf1bf [2021-10-13 00:58:51,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:58:51,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:58:51,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:58:51,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:58:51,889 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:58:51,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem11_label19.c [2021-10-13 00:58:51,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/data/a9edb4806/96ca43b8812849e6a990f242100ea326/FLAG88ae815ee [2021-10-13 00:58:52,787 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:58:52,788 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/sv-benchmarks/c/eca-rers2012/Problem11_label19.c [2021-10-13 00:58:52,812 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/data/a9edb4806/96ca43b8812849e6a990f242100ea326/FLAG88ae815ee [2021-10-13 00:58:52,919 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/data/a9edb4806/96ca43b8812849e6a990f242100ea326 [2021-10-13 00:58:52,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:58:52,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:58:52,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:58:52,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:58:52,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:58:52,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:58:52" (1/1) ... [2021-10-13 00:58:52,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e881af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:52, skipping insertion in model container [2021-10-13 00:58:52,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:58:52" (1/1) ... [2021-10-13 00:58:52,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:58:53,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:58:53,466 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/sv-benchmarks/c/eca-rers2012/Problem11_label19.c[8142,8155] [2021-10-13 00:58:53,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:58:53,863 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:58:53,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/sv-benchmarks/c/eca-rers2012/Problem11_label19.c[8142,8155] [2021-10-13 00:58:54,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:58:54,137 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:58:54,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54 WrapperNode [2021-10-13 00:58:54,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:58:54,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:58:54,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:58:54,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:58:54,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (1/1) ... [2021-10-13 00:58:54,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (1/1) ... [2021-10-13 00:58:54,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:58:54,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:58:54,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:58:54,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:58:54,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (1/1) ... [2021-10-13 00:58:54,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (1/1) ... [2021-10-13 00:58:54,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (1/1) ... [2021-10-13 00:58:54,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (1/1) ... [2021-10-13 00:58:54,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (1/1) ... [2021-10-13 00:58:54,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (1/1) ... [2021-10-13 00:58:54,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (1/1) ... [2021-10-13 00:58:54,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:58:54,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:58:54,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:58:54,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:58:54,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (1/1) ... [2021-10-13 00:58:54,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:58:54,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:58:54,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:58:54,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:58:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:58:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:58:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:58:54,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:58:56,909 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:58:56,910 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:58:56,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:56 BoogieIcfgContainer [2021-10-13 00:58:56,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:58:56,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:58:56,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:58:56,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:58:56,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:58:52" (1/3) ... [2021-10-13 00:58:56,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa2898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:58:56, skipping insertion in model container [2021-10-13 00:58:56,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:54" (2/3) ... [2021-10-13 00:58:56,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa2898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:58:56, skipping insertion in model container [2021-10-13 00:58:56,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:56" (3/3) ... [2021-10-13 00:58:56,932 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label19.c [2021-10-13 00:58:56,942 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:58:56,942 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:58:57,002 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:58:57,010 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:58:57,010 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:58:57,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:58:57,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-13 00:58:57,051 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:57,052 INFO L512 BasicCegarLoop]: 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] [2021-10-13 00:58:57,052 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:57,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:57,059 INFO L82 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2021-10-13 00:58:57,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:57,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278847854] [2021-10-13 00:58:57,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:57,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:57,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:57,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278847854] [2021-10-13 00:58:57,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278847854] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:57,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:57,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:58:57,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605591656] [2021-10-13 00:58:57,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:57,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:57,517 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:58:59,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:59,177 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-10-13 00:58:59,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:59,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-10-13 00:58:59,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:59,214 INFO L225 Difference]: With dead ends: 761 [2021-10-13 00:58:59,214 INFO L226 Difference]: Without dead ends: 413 [2021-10-13 00:58:59,225 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:59,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-10-13 00:58:59,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-10-13 00:58:59,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:58:59,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-10-13 00:58:59,307 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 56 [2021-10-13 00:58:59,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:59,308 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-10-13 00:58:59,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:58:59,309 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-10-13 00:58:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-10-13 00:58:59,316 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:59,317 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:59,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:58:59,318 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:59,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:59,319 INFO L82 PathProgramCache]: Analyzing trace with hash 145975082, now seen corresponding path program 1 times [2021-10-13 00:58:59,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:59,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027528738] [2021-10-13 00:58:59,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:59,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:59,592 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:59,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:59,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027528738] [2021-10-13 00:58:59,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027528738] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:59,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:59,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:58:59,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834096751] [2021-10-13 00:58:59,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:59,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:59,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:59,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:59,600 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:00,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:00,737 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-10-13 00:59:00,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:00,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-10-13 00:59:00,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:00,749 INFO L225 Difference]: With dead ends: 1211 [2021-10-13 00:59:00,749 INFO L226 Difference]: Without dead ends: 800 [2021-10-13 00:59:00,751 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:00,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-10-13 00:59:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-10-13 00:59:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3756345177664975) internal successors, (1084), 788 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:00,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2021-10-13 00:59:00,808 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 124 [2021-10-13 00:59:00,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:00,809 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2021-10-13 00:59:00,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:00,809 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2021-10-13 00:59:00,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-13 00:59:00,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:00,818 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:00,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:59:00,818 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:00,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:00,820 INFO L82 PathProgramCache]: Analyzing trace with hash -87355732, now seen corresponding path program 1 times [2021-10-13 00:59:00,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:00,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297279514] [2021-10-13 00:59:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:00,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:01,020 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:59:01,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:01,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297279514] [2021-10-13 00:59:01,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297279514] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:01,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:01,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:59:01,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541743310] [2021-10-13 00:59:01,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:01,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:01,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:01,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:01,025 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:02,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:02,112 INFO L93 Difference]: Finished difference Result 1945 states and 2614 transitions. [2021-10-13 00:59:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:02,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-10-13 00:59:02,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:02,122 INFO L225 Difference]: With dead ends: 1945 [2021-10-13 00:59:02,122 INFO L226 Difference]: Without dead ends: 1158 [2021-10-13 00:59:02,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:02,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2021-10-13 00:59:02,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2021-10-13 00:59:02,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2716262975778547) internal successors, (1470), 1156 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:02,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1470 transitions. [2021-10-13 00:59:02,169 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1470 transitions. Word has length 125 [2021-10-13 00:59:02,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:02,170 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1470 transitions. [2021-10-13 00:59:02,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1470 transitions. [2021-10-13 00:59:02,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-10-13 00:59:02,180 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:02,181 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:02,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:59:02,181 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:02,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:02,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1822006727, now seen corresponding path program 1 times [2021-10-13 00:59:02,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:02,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377414156] [2021-10-13 00:59:02,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:02,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:02,345 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:59:02,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:02,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377414156] [2021-10-13 00:59:02,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377414156] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:02,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:02,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:02,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337549491] [2021-10-13 00:59:02,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:02,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:02,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:02,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:02,350 INFO L87 Difference]: Start difference. First operand 1157 states and 1470 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:03,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:03,454 INFO L93 Difference]: Finished difference Result 2519 states and 3352 transitions. [2021-10-13 00:59:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:03,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2021-10-13 00:59:03,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:03,468 INFO L225 Difference]: With dead ends: 2519 [2021-10-13 00:59:03,469 INFO L226 Difference]: Without dead ends: 1548 [2021-10-13 00:59:03,473 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:03,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2021-10-13 00:59:03,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1545. [2021-10-13 00:59:03,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.294041450777202) internal successors, (1998), 1544 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:03,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1998 transitions. [2021-10-13 00:59:03,526 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1998 transitions. Word has length 183 [2021-10-13 00:59:03,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:03,530 INFO L470 AbstractCegarLoop]: Abstraction has 1545 states and 1998 transitions. [2021-10-13 00:59:03,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:03,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1998 transitions. [2021-10-13 00:59:03,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-10-13 00:59:03,537 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:03,537 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:03,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:59:03,539 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:03,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:03,542 INFO L82 PathProgramCache]: Analyzing trace with hash -293129306, now seen corresponding path program 1 times [2021-10-13 00:59:03,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:03,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391132017] [2021-10-13 00:59:03,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:03,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:59:03,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:03,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391132017] [2021-10-13 00:59:03,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391132017] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:03,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:03,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:03,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444107311] [2021-10-13 00:59:03,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:03,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:03,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:03,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:03,764 INFO L87 Difference]: Start difference. First operand 1545 states and 1998 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:04,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:04,943 INFO L93 Difference]: Finished difference Result 3656 states and 4826 transitions. [2021-10-13 00:59:04,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:04,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2021-10-13 00:59:04,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:04,961 INFO L225 Difference]: With dead ends: 3656 [2021-10-13 00:59:04,961 INFO L226 Difference]: Without dead ends: 2297 [2021-10-13 00:59:04,964 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:04,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2021-10-13 00:59:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 2100. [2021-10-13 00:59:05,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.2706050500238208) internal successors, (2667), 2099 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:05,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2667 transitions. [2021-10-13 00:59:05,045 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2667 transitions. Word has length 236 [2021-10-13 00:59:05,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:05,046 INFO L470 AbstractCegarLoop]: Abstraction has 2100 states and 2667 transitions. [2021-10-13 00:59:05,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2667 transitions. [2021-10-13 00:59:05,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-10-13 00:59:05,052 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:05,053 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:05,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:59:05,053 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:05,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:05,054 INFO L82 PathProgramCache]: Analyzing trace with hash -814689872, now seen corresponding path program 1 times [2021-10-13 00:59:05,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:05,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682178081] [2021-10-13 00:59:05,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:05,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:05,262 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:59:05,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:05,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682178081] [2021-10-13 00:59:05,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682178081] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:05,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:05,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:59:05,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339429071] [2021-10-13 00:59:05,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:59:05,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:05,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:59:05,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:05,267 INFO L87 Difference]: Start difference. First operand 2100 states and 2667 transitions. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:07,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:07,381 INFO L93 Difference]: Finished difference Result 6988 states and 9014 transitions. [2021-10-13 00:59:07,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:59:07,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2021-10-13 00:59:07,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:07,414 INFO L225 Difference]: With dead ends: 6988 [2021-10-13 00:59:07,414 INFO L226 Difference]: Without dead ends: 4890 [2021-10-13 00:59:07,425 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:07,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2021-10-13 00:59:07,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4690. [2021-10-13 00:59:07,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4690 states, 4689 states have (on average 1.2518660695244188) internal successors, (5870), 4689 states have internal predecessors, (5870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4690 states to 4690 states and 5870 transitions. [2021-10-13 00:59:07,574 INFO L78 Accepts]: Start accepts. Automaton has 4690 states and 5870 transitions. Word has length 237 [2021-10-13 00:59:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:07,575 INFO L470 AbstractCegarLoop]: Abstraction has 4690 states and 5870 transitions. [2021-10-13 00:59:07,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 4690 states and 5870 transitions. [2021-10-13 00:59:07,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-10-13 00:59:07,582 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:07,582 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:07,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:59:07,583 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:07,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:07,584 INFO L82 PathProgramCache]: Analyzing trace with hash 298488641, now seen corresponding path program 1 times [2021-10-13 00:59:07,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:07,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157243557] [2021-10-13 00:59:07,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:07,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:07,793 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-10-13 00:59:07,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:07,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157243557] [2021-10-13 00:59:07,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157243557] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:07,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:07,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:07,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721022374] [2021-10-13 00:59:07,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:07,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:07,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:07,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:07,798 INFO L87 Difference]: Start difference. First operand 4690 states and 5870 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:09,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:09,017 INFO L93 Difference]: Finished difference Result 10496 states and 13349 transitions. [2021-10-13 00:59:09,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:09,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2021-10-13 00:59:09,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:09,058 INFO L225 Difference]: With dead ends: 10496 [2021-10-13 00:59:09,058 INFO L226 Difference]: Without dead ends: 6176 [2021-10-13 00:59:09,066 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:09,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6176 states. [2021-10-13 00:59:09,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6176 to 5978. [2021-10-13 00:59:09,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 5977 states have (on average 1.2297139032959679) internal successors, (7350), 5977 states have internal predecessors, (7350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:09,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 7350 transitions. [2021-10-13 00:59:09,305 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 7350 transitions. Word has length 238 [2021-10-13 00:59:09,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:09,306 INFO L470 AbstractCegarLoop]: Abstraction has 5978 states and 7350 transitions. [2021-10-13 00:59:09,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:09,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 7350 transitions. [2021-10-13 00:59:09,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-10-13 00:59:09,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:09,314 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:09,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:59:09,315 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:09,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:09,316 INFO L82 PathProgramCache]: Analyzing trace with hash -70460415, now seen corresponding path program 1 times [2021-10-13 00:59:09,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:09,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898015042] [2021-10-13 00:59:09,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:09,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:09,502 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-10-13 00:59:09,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:09,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898015042] [2021-10-13 00:59:09,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898015042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:09,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:09,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:09,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044853236] [2021-10-13 00:59:09,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:09,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:09,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:09,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:09,507 INFO L87 Difference]: Start difference. First operand 5978 states and 7350 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:10,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:10,844 INFO L93 Difference]: Finished difference Result 14181 states and 17519 transitions. [2021-10-13 00:59:10,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:10,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2021-10-13 00:59:10,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:10,898 INFO L225 Difference]: With dead ends: 14181 [2021-10-13 00:59:10,899 INFO L226 Difference]: Without dead ends: 8573 [2021-10-13 00:59:10,907 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:10,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8573 states. [2021-10-13 00:59:11,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8573 to 8017. [2021-10-13 00:59:11,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8017 states, 8016 states have (on average 1.2169411177644711) internal successors, (9755), 8016 states have internal predecessors, (9755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:11,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8017 states to 8017 states and 9755 transitions. [2021-10-13 00:59:11,139 INFO L78 Accepts]: Start accepts. Automaton has 8017 states and 9755 transitions. Word has length 248 [2021-10-13 00:59:11,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:11,140 INFO L470 AbstractCegarLoop]: Abstraction has 8017 states and 9755 transitions. [2021-10-13 00:59:11,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:11,141 INFO L276 IsEmpty]: Start isEmpty. Operand 8017 states and 9755 transitions. [2021-10-13 00:59:11,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-10-13 00:59:11,149 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:11,150 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:11,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:59:11,150 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:11,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:11,151 INFO L82 PathProgramCache]: Analyzing trace with hash 2090947407, now seen corresponding path program 1 times [2021-10-13 00:59:11,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:11,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957586673] [2021-10-13 00:59:11,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:11,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-10-13 00:59:11,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:11,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957586673] [2021-10-13 00:59:11,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957586673] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:11,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:11,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:11,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767829148] [2021-10-13 00:59:11,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:11,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:11,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:11,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:11,340 INFO L87 Difference]: Start difference. First operand 8017 states and 9755 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:12,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:12,570 INFO L93 Difference]: Finished difference Result 17345 states and 21233 transitions. [2021-10-13 00:59:12,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:12,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2021-10-13 00:59:12,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:12,618 INFO L225 Difference]: With dead ends: 17345 [2021-10-13 00:59:12,618 INFO L226 Difference]: Without dead ends: 9698 [2021-10-13 00:59:12,632 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:12,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9698 states. [2021-10-13 00:59:12,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9698 to 9304. [2021-10-13 00:59:12,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9304 states, 9303 states have (on average 1.2159518434913468) internal successors, (11312), 9303 states have internal predecessors, (11312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:12,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9304 states to 9304 states and 11312 transitions. [2021-10-13 00:59:12,853 INFO L78 Accepts]: Start accepts. Automaton has 9304 states and 11312 transitions. Word has length 258 [2021-10-13 00:59:12,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:12,854 INFO L470 AbstractCegarLoop]: Abstraction has 9304 states and 11312 transitions. [2021-10-13 00:59:12,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:12,855 INFO L276 IsEmpty]: Start isEmpty. Operand 9304 states and 11312 transitions. [2021-10-13 00:59:12,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-10-13 00:59:12,863 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:12,864 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:12,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 00:59:12,865 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:12,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:12,865 INFO L82 PathProgramCache]: Analyzing trace with hash 973039469, now seen corresponding path program 1 times [2021-10-13 00:59:12,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:12,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771605784] [2021-10-13 00:59:12,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:12,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 00:59:12,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:12,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771605784] [2021-10-13 00:59:12,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771605784] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:12,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:12,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:59:12,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897012835] [2021-10-13 00:59:12,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:12,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:12,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:12,982 INFO L87 Difference]: Start difference. First operand 9304 states and 11312 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:14,028 INFO L93 Difference]: Finished difference Result 18205 states and 22188 transitions. [2021-10-13 00:59:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:14,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2021-10-13 00:59:14,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:14,085 INFO L225 Difference]: With dead ends: 18205 [2021-10-13 00:59:14,086 INFO L226 Difference]: Without dead ends: 9271 [2021-10-13 00:59:14,098 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:14,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9271 states. [2021-10-13 00:59:14,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9271 to 9086. [2021-10-13 00:59:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9086 states, 9085 states have (on average 1.1512383048981838) internal successors, (10459), 9085 states have internal predecessors, (10459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:14,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9086 states to 9086 states and 10459 transitions. [2021-10-13 00:59:14,285 INFO L78 Accepts]: Start accepts. Automaton has 9086 states and 10459 transitions. Word has length 259 [2021-10-13 00:59:14,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:14,285 INFO L470 AbstractCegarLoop]: Abstraction has 9086 states and 10459 transitions. [2021-10-13 00:59:14,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:14,286 INFO L276 IsEmpty]: Start isEmpty. Operand 9086 states and 10459 transitions. [2021-10-13 00:59:14,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-10-13 00:59:14,297 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:14,298 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:14,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:59:14,299 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:14,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:14,299 INFO L82 PathProgramCache]: Analyzing trace with hash 585798969, now seen corresponding path program 1 times [2021-10-13 00:59:14,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:14,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896415455] [2021-10-13 00:59:14,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:14,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-13 00:59:14,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:14,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896415455] [2021-10-13 00:59:14,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896415455] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:14,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:14,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:14,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428467386] [2021-10-13 00:59:14,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:14,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:14,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:14,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:14,480 INFO L87 Difference]: Start difference. First operand 9086 states and 10459 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:15,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:15,765 INFO L93 Difference]: Finished difference Result 18358 states and 21126 transitions. [2021-10-13 00:59:15,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:15,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 289 [2021-10-13 00:59:15,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:15,787 INFO L225 Difference]: With dead ends: 18358 [2021-10-13 00:59:15,788 INFO L226 Difference]: Without dead ends: 9458 [2021-10-13 00:59:15,799 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:15,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9458 states. [2021-10-13 00:59:15,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9458 to 9453. [2021-10-13 00:59:15,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9453 states, 9452 states have (on average 1.1241007194244603) internal successors, (10625), 9452 states have internal predecessors, (10625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9453 states to 9453 states and 10625 transitions. [2021-10-13 00:59:15,980 INFO L78 Accepts]: Start accepts. Automaton has 9453 states and 10625 transitions. Word has length 289 [2021-10-13 00:59:15,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:15,981 INFO L470 AbstractCegarLoop]: Abstraction has 9453 states and 10625 transitions. [2021-10-13 00:59:15,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:15,981 INFO L276 IsEmpty]: Start isEmpty. Operand 9453 states and 10625 transitions. [2021-10-13 00:59:15,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-10-13 00:59:15,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:15,996 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:15,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 00:59:15,997 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:15,997 INFO L82 PathProgramCache]: Analyzing trace with hash 844810203, now seen corresponding path program 1 times [2021-10-13 00:59:15,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:15,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161360245] [2021-10-13 00:59:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:15,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 00:59:16,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:16,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161360245] [2021-10-13 00:59:16,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161360245] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:16,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:16,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:16,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394585603] [2021-10-13 00:59:16,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:16,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:16,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:16,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:16,181 INFO L87 Difference]: Start difference. First operand 9453 states and 10625 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:17,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:17,402 INFO L93 Difference]: Finished difference Result 21307 states and 24061 transitions. [2021-10-13 00:59:17,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:17,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 319 [2021-10-13 00:59:17,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:17,428 INFO L225 Difference]: With dead ends: 21307 [2021-10-13 00:59:17,428 INFO L226 Difference]: Without dead ends: 12224 [2021-10-13 00:59:17,439 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:17,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12224 states. [2021-10-13 00:59:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12224 to 12222. [2021-10-13 00:59:17,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12222 states, 12221 states have (on average 1.116111611161116) internal successors, (13640), 12221 states have internal predecessors, (13640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:17,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12222 states to 12222 states and 13640 transitions. [2021-10-13 00:59:17,663 INFO L78 Accepts]: Start accepts. Automaton has 12222 states and 13640 transitions. Word has length 319 [2021-10-13 00:59:17,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:17,664 INFO L470 AbstractCegarLoop]: Abstraction has 12222 states and 13640 transitions. [2021-10-13 00:59:17,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:17,664 INFO L276 IsEmpty]: Start isEmpty. Operand 12222 states and 13640 transitions. [2021-10-13 00:59:17,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-10-13 00:59:17,680 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:17,681 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:17,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 00:59:17,682 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:17,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:17,682 INFO L82 PathProgramCache]: Analyzing trace with hash -235094284, now seen corresponding path program 1 times [2021-10-13 00:59:17,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:17,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459060650] [2021-10-13 00:59:17,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:17,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 242 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:59:18,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:18,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459060650] [2021-10-13 00:59:18,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459060650] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:59:18,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857220410] [2021-10-13 00:59:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:18,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:59:18,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:59:18,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:59:18,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:59:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:18,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:59:18,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:59:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 00:59:19,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857220410] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:19,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:59:19,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 00:59:19,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014281311] [2021-10-13 00:59:19,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:19,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:19,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:59:19,762 INFO L87 Difference]: Start difference. First operand 12222 states and 13640 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:21,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:21,048 INFO L93 Difference]: Finished difference Result 25383 states and 28427 transitions. [2021-10-13 00:59:21,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:21,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 329 [2021-10-13 00:59:21,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:21,082 INFO L225 Difference]: With dead ends: 25383 [2021-10-13 00:59:21,083 INFO L226 Difference]: Without dead ends: 13531 [2021-10-13 00:59:21,096 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 21.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:59:21,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13531 states. [2021-10-13 00:59:21,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13531 to 13522. [2021-10-13 00:59:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13522 states, 13521 states have (on average 1.1178167295318393) internal successors, (15114), 13521 states have internal predecessors, (15114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:21,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13522 states to 13522 states and 15114 transitions. [2021-10-13 00:59:21,414 INFO L78 Accepts]: Start accepts. Automaton has 13522 states and 15114 transitions. Word has length 329 [2021-10-13 00:59:21,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:21,415 INFO L470 AbstractCegarLoop]: Abstraction has 13522 states and 15114 transitions. [2021-10-13 00:59:21,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:21,416 INFO L276 IsEmpty]: Start isEmpty. Operand 13522 states and 15114 transitions. [2021-10-13 00:59:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-10-13 00:59:21,433 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:21,434 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:21,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:59:21,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 00:59:21,648 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:21,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:21,648 INFO L82 PathProgramCache]: Analyzing trace with hash -2086914279, now seen corresponding path program 1 times [2021-10-13 00:59:21,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:21,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128764653] [2021-10-13 00:59:21,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:21,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:21,879 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 00:59:21,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:21,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128764653] [2021-10-13 00:59:21,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128764653] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:21,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:21,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:59:21,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943834779] [2021-10-13 00:59:21,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:21,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:21,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:21,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:21,884 INFO L87 Difference]: Start difference. First operand 13522 states and 15114 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:22,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:22,525 INFO L93 Difference]: Finished difference Result 26663 states and 29835 transitions. [2021-10-13 00:59:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:22,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 338 [2021-10-13 00:59:22,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:22,558 INFO L225 Difference]: With dead ends: 26663 [2021-10-13 00:59:22,559 INFO L226 Difference]: Without dead ends: 13511 [2021-10-13 00:59:22,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:22,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13511 states. [2021-10-13 00:59:22,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13511 to 13506. [2021-10-13 00:59:22,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13506 states, 13505 states have (on average 1.117067752684191) internal successors, (15086), 13505 states have internal predecessors, (15086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:22,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13506 states to 13506 states and 15086 transitions. [2021-10-13 00:59:22,881 INFO L78 Accepts]: Start accepts. Automaton has 13506 states and 15086 transitions. Word has length 338 [2021-10-13 00:59:22,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:22,882 INFO L470 AbstractCegarLoop]: Abstraction has 13506 states and 15086 transitions. [2021-10-13 00:59:22,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:22,882 INFO L276 IsEmpty]: Start isEmpty. Operand 13506 states and 15086 transitions. [2021-10-13 00:59:22,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-10-13 00:59:22,898 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:22,899 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:22,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 00:59:22,900 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:22,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:22,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1537666383, now seen corresponding path program 1 times [2021-10-13 00:59:22,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:22,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476552936] [2021-10-13 00:59:22,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:22,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:23,268 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 00:59:23,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:23,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476552936] [2021-10-13 00:59:23,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476552936] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:23,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:23,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:23,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765661246] [2021-10-13 00:59:23,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:59:23,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:23,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:59:23,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:23,278 INFO L87 Difference]: Start difference. First operand 13506 states and 15086 transitions. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:25,253 INFO L93 Difference]: Finished difference Result 28862 states and 32245 transitions. [2021-10-13 00:59:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:59:25,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 350 [2021-10-13 00:59:25,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:25,293 INFO L225 Difference]: With dead ends: 28862 [2021-10-13 00:59:25,293 INFO L226 Difference]: Without dead ends: 15726 [2021-10-13 00:59:25,307 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:25,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15726 states. [2021-10-13 00:59:25,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15726 to 15718. [2021-10-13 00:59:25,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15718 states, 15717 states have (on average 1.1105172742889864) internal successors, (17454), 15717 states have internal predecessors, (17454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:25,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15718 states to 15718 states and 17454 transitions. [2021-10-13 00:59:25,656 INFO L78 Accepts]: Start accepts. Automaton has 15718 states and 17454 transitions. Word has length 350 [2021-10-13 00:59:25,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:25,657 INFO L470 AbstractCegarLoop]: Abstraction has 15718 states and 17454 transitions. [2021-10-13 00:59:25,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 15718 states and 17454 transitions. [2021-10-13 00:59:25,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-10-13 00:59:25,676 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:25,676 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:25,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 00:59:25,677 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:25,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:25,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1164252215, now seen corresponding path program 1 times [2021-10-13 00:59:25,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:25,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021272656] [2021-10-13 00:59:25,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:25,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-13 00:59:26,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:26,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021272656] [2021-10-13 00:59:26,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021272656] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:26,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:26,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:59:26,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784483452] [2021-10-13 00:59:26,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:59:26,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:26,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:59:26,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:26,021 INFO L87 Difference]: Start difference. First operand 15718 states and 17454 transitions. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:27,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:27,729 INFO L93 Difference]: Finished difference Result 32359 states and 35959 transitions. [2021-10-13 00:59:27,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:59:27,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 363 [2021-10-13 00:59:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:27,763 INFO L225 Difference]: With dead ends: 32359 [2021-10-13 00:59:27,764 INFO L226 Difference]: Without dead ends: 17011 [2021-10-13 00:59:27,774 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:27,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17011 states. [2021-10-13 00:59:28,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17011 to 16270. [2021-10-13 00:59:28,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16270 states, 16269 states have (on average 1.108980269223677) internal successors, (18042), 16269 states have internal predecessors, (18042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:28,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16270 states to 16270 states and 18042 transitions. [2021-10-13 00:59:28,172 INFO L78 Accepts]: Start accepts. Automaton has 16270 states and 18042 transitions. Word has length 363 [2021-10-13 00:59:28,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:28,173 INFO L470 AbstractCegarLoop]: Abstraction has 16270 states and 18042 transitions. [2021-10-13 00:59:28,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:28,174 INFO L276 IsEmpty]: Start isEmpty. Operand 16270 states and 18042 transitions. [2021-10-13 00:59:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-10-13 00:59:28,191 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:28,192 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:28,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 00:59:28,192 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:28,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:28,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1462969262, now seen corresponding path program 1 times [2021-10-13 00:59:28,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:28,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668762258] [2021-10-13 00:59:28,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:28,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 00:59:28,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:28,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668762258] [2021-10-13 00:59:28,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668762258] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:28,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:28,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:28,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881379018] [2021-10-13 00:59:28,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:59:28,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:28,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:59:28,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:28,419 INFO L87 Difference]: Start difference. First operand 16270 states and 18042 transitions. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:30,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:30,055 INFO L93 Difference]: Finished difference Result 43057 states and 47697 transitions. [2021-10-13 00:59:30,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:59:30,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2021-10-13 00:59:30,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:30,100 INFO L225 Difference]: With dead ends: 43057 [2021-10-13 00:59:30,100 INFO L226 Difference]: Without dead ends: 26233 [2021-10-13 00:59:30,112 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:30,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26233 states. [2021-10-13 00:59:30,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26233 to 24940. [2021-10-13 00:59:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24940 states, 24939 states have (on average 1.1017282168491118) internal successors, (27476), 24939 states have internal predecessors, (27476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:30,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24940 states to 24940 states and 27476 transitions. [2021-10-13 00:59:30,707 INFO L78 Accepts]: Start accepts. Automaton has 24940 states and 27476 transitions. Word has length 377 [2021-10-13 00:59:30,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:30,708 INFO L470 AbstractCegarLoop]: Abstraction has 24940 states and 27476 transitions. [2021-10-13 00:59:30,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 24940 states and 27476 transitions. [2021-10-13 00:59:30,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-10-13 00:59:30,736 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:30,737 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:30,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 00:59:30,737 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:30,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:30,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1797707710, now seen corresponding path program 1 times [2021-10-13 00:59:30,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:30,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193468634] [2021-10-13 00:59:30,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:30,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:31,003 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-10-13 00:59:31,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:31,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193468634] [2021-10-13 00:59:31,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193468634] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:31,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:31,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:31,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441475518] [2021-10-13 00:59:31,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:31,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:31,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:31,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:31,010 INFO L87 Difference]: Start difference. First operand 24940 states and 27476 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:32,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:32,110 INFO L93 Difference]: Finished difference Result 28806 states and 31708 transitions. [2021-10-13 00:59:32,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:32,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 408 [2021-10-13 00:59:32,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:32,164 INFO L225 Difference]: With dead ends: 28806 [2021-10-13 00:59:32,164 INFO L226 Difference]: Without dead ends: 28804 [2021-10-13 00:59:32,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:32,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28804 states. [2021-10-13 00:59:32,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28804 to 25308. [2021-10-13 00:59:32,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25308 states, 25307 states have (on average 1.1021851661595605) internal successors, (27893), 25307 states have internal predecessors, (27893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:32,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25308 states to 25308 states and 27893 transitions. [2021-10-13 00:59:32,813 INFO L78 Accepts]: Start accepts. Automaton has 25308 states and 27893 transitions. Word has length 408 [2021-10-13 00:59:32,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:32,814 INFO L470 AbstractCegarLoop]: Abstraction has 25308 states and 27893 transitions. [2021-10-13 00:59:32,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:32,814 INFO L276 IsEmpty]: Start isEmpty. Operand 25308 states and 27893 transitions. [2021-10-13 00:59:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2021-10-13 00:59:32,855 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:32,855 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:32,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 00:59:32,856 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:32,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:32,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1512001580, now seen corresponding path program 1 times [2021-10-13 00:59:32,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:32,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717184372] [2021-10-13 00:59:32,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:32,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 458 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 00:59:33,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:33,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717184372] [2021-10-13 00:59:33,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717184372] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:33,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:33,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:33,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942365761] [2021-10-13 00:59:33,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:33,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:33,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:33,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:33,175 INFO L87 Difference]: Start difference. First operand 25308 states and 27893 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:34,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:34,309 INFO L93 Difference]: Finished difference Result 54667 states and 60218 transitions. [2021-10-13 00:59:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:34,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 419 [2021-10-13 00:59:34,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:34,337 INFO L225 Difference]: With dead ends: 54667 [2021-10-13 00:59:34,337 INFO L226 Difference]: Without dead ends: 29913 [2021-10-13 00:59:34,349 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:34,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29913 states. [2021-10-13 00:59:34,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29913 to 29724. [2021-10-13 00:59:34,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29724 states, 29723 states have (on average 1.0919489957272146) internal successors, (32456), 29723 states have internal predecessors, (32456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:34,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29724 states to 29724 states and 32456 transitions. [2021-10-13 00:59:34,932 INFO L78 Accepts]: Start accepts. Automaton has 29724 states and 32456 transitions. Word has length 419 [2021-10-13 00:59:34,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:34,932 INFO L470 AbstractCegarLoop]: Abstraction has 29724 states and 32456 transitions. [2021-10-13 00:59:34,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 29724 states and 32456 transitions. [2021-10-13 00:59:34,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-10-13 00:59:34,943 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:34,944 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:34,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 00:59:34,944 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:34,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:34,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1594395410, now seen corresponding path program 1 times [2021-10-13 00:59:34,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:34,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635920694] [2021-10-13 00:59:34,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:34,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:35,161 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 00:59:35,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:35,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635920694] [2021-10-13 00:59:35,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635920694] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:35,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:35,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:59:35,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554786700] [2021-10-13 00:59:35,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:59:35,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:35,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:59:35,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:35,165 INFO L87 Difference]: Start difference. First operand 29724 states and 32456 transitions. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:37,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:37,001 INFO L93 Difference]: Finished difference Result 63687 states and 69564 transitions. [2021-10-13 00:59:37,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:59:37,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 427 [2021-10-13 00:59:37,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:37,040 INFO L225 Difference]: With dead ends: 63687 [2021-10-13 00:59:37,040 INFO L226 Difference]: Without dead ends: 34701 [2021-10-13 00:59:37,051 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:37,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34701 states. [2021-10-13 00:59:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34701 to 30831. [2021-10-13 00:59:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30831 states, 30830 states have (on average 1.0880960103795005) internal successors, (33546), 30830 states have internal predecessors, (33546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30831 states to 30831 states and 33546 transitions. [2021-10-13 00:59:37,490 INFO L78 Accepts]: Start accepts. Automaton has 30831 states and 33546 transitions. Word has length 427 [2021-10-13 00:59:37,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:37,491 INFO L470 AbstractCegarLoop]: Abstraction has 30831 states and 33546 transitions. [2021-10-13 00:59:37,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:37,491 INFO L276 IsEmpty]: Start isEmpty. Operand 30831 states and 33546 transitions. [2021-10-13 00:59:37,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-10-13 00:59:37,500 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:37,501 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:37,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 00:59:37,501 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:37,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:37,502 INFO L82 PathProgramCache]: Analyzing trace with hash 974136964, now seen corresponding path program 1 times [2021-10-13 00:59:37,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:37,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330864375] [2021-10-13 00:59:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:37,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:37,937 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 249 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:59:37,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:37,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330864375] [2021-10-13 00:59:37,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330864375] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:59:37,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518096886] [2021-10-13 00:59:37,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:37,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:59:37,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:59:37,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:59:37,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:59:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:38,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:59:38,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:59:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 230 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:59:41,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518096886] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:59:41,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:59:41,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-13 00:59:41,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808625243] [2021-10-13 00:59:41,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 00:59:41,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:41,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:59:41,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:59:41,925 INFO L87 Difference]: Start difference. First operand 30831 states and 33546 transitions. Second operand has 9 states, 9 states have (on average 95.44444444444444) internal successors, (859), 8 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:47,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:47,068 INFO L93 Difference]: Finished difference Result 75853 states and 82504 transitions. [2021-10-13 00:59:47,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 00:59:47,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 95.44444444444444) internal successors, (859), 8 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 430 [2021-10-13 00:59:47,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:47,115 INFO L225 Difference]: With dead ends: 75853 [2021-10-13 00:59:47,115 INFO L226 Difference]: Without dead ends: 46128 [2021-10-13 00:59:47,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 105.1ms TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-10-13 00:59:47,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46128 states. [2021-10-13 00:59:47,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46128 to 38011. [2021-10-13 00:59:47,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38011 states, 38010 states have (on average 1.083372796632465) internal successors, (41179), 38010 states have internal predecessors, (41179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:47,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38011 states to 38011 states and 41179 transitions. [2021-10-13 00:59:47,857 INFO L78 Accepts]: Start accepts. Automaton has 38011 states and 41179 transitions. Word has length 430 [2021-10-13 00:59:47,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:47,858 INFO L470 AbstractCegarLoop]: Abstraction has 38011 states and 41179 transitions. [2021-10-13 00:59:47,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.44444444444444) internal successors, (859), 8 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:47,858 INFO L276 IsEmpty]: Start isEmpty. Operand 38011 states and 41179 transitions. [2021-10-13 00:59:47,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-10-13 00:59:47,872 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:47,872 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:47,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:59:48,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:59:48,074 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:48,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:48,074 INFO L82 PathProgramCache]: Analyzing trace with hash -742651351, now seen corresponding path program 1 times [2021-10-13 00:59:48,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:48,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107646202] [2021-10-13 00:59:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:48,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:48,291 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-13 00:59:48,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:48,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107646202] [2021-10-13 00:59:48,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107646202] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:48,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:48,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:48,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510169682] [2021-10-13 00:59:48,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:48,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:48,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:48,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:48,297 INFO L87 Difference]: Start difference. First operand 38011 states and 41179 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:49,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:49,192 INFO L93 Difference]: Finished difference Result 42797 states and 46304 transitions. [2021-10-13 00:59:49,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:49,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 444 [2021-10-13 00:59:49,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:49,248 INFO L225 Difference]: With dead ends: 42797 [2021-10-13 00:59:49,249 INFO L226 Difference]: Without dead ends: 42795 [2021-10-13 00:59:49,260 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:49,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42795 states. [2021-10-13 00:59:50,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42795 to 37643. [2021-10-13 00:59:50,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37643 states, 37642 states have (on average 1.0838159502683173) internal successors, (40797), 37642 states have internal predecessors, (40797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:50,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37643 states to 37643 states and 40797 transitions. [2021-10-13 00:59:50,159 INFO L78 Accepts]: Start accepts. Automaton has 37643 states and 40797 transitions. Word has length 444 [2021-10-13 00:59:50,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:50,160 INFO L470 AbstractCegarLoop]: Abstraction has 37643 states and 40797 transitions. [2021-10-13 00:59:50,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:50,160 INFO L276 IsEmpty]: Start isEmpty. Operand 37643 states and 40797 transitions. [2021-10-13 00:59:50,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-10-13 00:59:50,189 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:50,190 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:50,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-13 00:59:50,191 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:50,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:50,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1973495715, now seen corresponding path program 1 times [2021-10-13 00:59:50,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:50,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483271638] [2021-10-13 00:59:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:50,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 623 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-10-13 00:59:50,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:50,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483271638] [2021-10-13 00:59:50,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483271638] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:50,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:50,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:50,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603954441] [2021-10-13 00:59:50,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:50,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:50,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:50,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:50,492 INFO L87 Difference]: Start difference. First operand 37643 states and 40797 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:51,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:51,526 INFO L93 Difference]: Finished difference Result 73073 states and 79275 transitions. [2021-10-13 00:59:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:51,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 473 [2021-10-13 00:59:51,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:51,588 INFO L225 Difference]: With dead ends: 73073 [2021-10-13 00:59:51,588 INFO L226 Difference]: Without dead ends: 38932 [2021-10-13 00:59:51,612 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:51,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38932 states. [2021-10-13 00:59:52,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38932 to 37459. [2021-10-13 00:59:52,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37459 states, 37458 states have (on average 1.0835869507181377) internal successors, (40589), 37458 states have internal predecessors, (40589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:52,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37459 states to 37459 states and 40589 transitions. [2021-10-13 00:59:52,290 INFO L78 Accepts]: Start accepts. Automaton has 37459 states and 40589 transitions. Word has length 473 [2021-10-13 00:59:52,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:52,290 INFO L470 AbstractCegarLoop]: Abstraction has 37459 states and 40589 transitions. [2021-10-13 00:59:52,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:52,291 INFO L276 IsEmpty]: Start isEmpty. Operand 37459 states and 40589 transitions. [2021-10-13 00:59:52,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2021-10-13 00:59:52,311 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:52,311 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:52,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-13 00:59:52,312 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:52,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:52,313 INFO L82 PathProgramCache]: Analyzing trace with hash 2025307201, now seen corresponding path program 1 times [2021-10-13 00:59:52,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:52,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850284514] [2021-10-13 00:59:52,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:52,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 626 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 00:59:52,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:52,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850284514] [2021-10-13 00:59:52,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850284514] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:52,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:52,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:59:52,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359213707] [2021-10-13 00:59:52,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:59:52,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:52,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:59:52,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:52,852 INFO L87 Difference]: Start difference. First operand 37459 states and 40589 transitions. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:54,050 INFO L93 Difference]: Finished difference Result 71420 states and 77480 transitions. [2021-10-13 00:59:54,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:59:54,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 489 [2021-10-13 00:59:54,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:54,086 INFO L225 Difference]: With dead ends: 71420 [2021-10-13 00:59:54,086 INFO L226 Difference]: Without dead ends: 37463 [2021-10-13 00:59:54,100 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:54,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37463 states. [2021-10-13 00:59:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37463 to 37459. [2021-10-13 00:59:54,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37459 states, 37458 states have (on average 1.0833199850499227) internal successors, (40579), 37458 states have internal predecessors, (40579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:54,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37459 states to 37459 states and 40579 transitions. [2021-10-13 00:59:54,702 INFO L78 Accepts]: Start accepts. Automaton has 37459 states and 40579 transitions. Word has length 489 [2021-10-13 00:59:54,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:54,702 INFO L470 AbstractCegarLoop]: Abstraction has 37459 states and 40579 transitions. [2021-10-13 00:59:54,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:54,703 INFO L276 IsEmpty]: Start isEmpty. Operand 37459 states and 40579 transitions. [2021-10-13 00:59:54,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-10-13 00:59:54,721 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:54,721 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:54,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-13 00:59:54,722 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:54,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:54,722 INFO L82 PathProgramCache]: Analyzing trace with hash 822179319, now seen corresponding path program 1 times [2021-10-13 00:59:54,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:54,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577529060] [2021-10-13 00:59:54,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:54,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:55,033 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 540 proven. 64 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-10-13 00:59:55,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:55,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577529060] [2021-10-13 00:59:55,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577529060] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:59:55,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757720331] [2021-10-13 00:59:55,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:55,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:59:55,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:59:55,037 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:59:55,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:59:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:55,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:59:55,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:59:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 00:59:57,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757720331] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:57,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:59:57,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2021-10-13 00:59:57,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89576701] [2021-10-13 00:59:57,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:59:57,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:57,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:59:57,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:59:57,559 INFO L87 Difference]: Start difference. First operand 37459 states and 40579 transitions. Second operand has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:58,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:58,812 INFO L93 Difference]: Finished difference Result 71428 states and 77471 transitions. [2021-10-13 00:59:58,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:59:58,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 505 [2021-10-13 00:59:58,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:58,867 INFO L225 Difference]: With dead ends: 71428 [2021-10-13 00:59:58,867 INFO L226 Difference]: Without dead ends: 37471 [2021-10-13 00:59:58,890 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 34.8ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:59:58,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37471 states. [2021-10-13 00:59:59,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37471 to 36719. [2021-10-13 00:59:59,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36719 states, 36718 states have (on average 1.0823301922762678) internal successors, (39741), 36718 states have internal predecessors, (39741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36719 states to 36719 states and 39741 transitions. [2021-10-13 00:59:59,584 INFO L78 Accepts]: Start accepts. Automaton has 36719 states and 39741 transitions. Word has length 505 [2021-10-13 00:59:59,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:59,585 INFO L470 AbstractCegarLoop]: Abstraction has 36719 states and 39741 transitions. [2021-10-13 00:59:59,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:59:59,585 INFO L276 IsEmpty]: Start isEmpty. Operand 36719 states and 39741 transitions. [2021-10-13 00:59:59,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-10-13 00:59:59,601 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:59,602 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:59,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:59:59,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-13 00:59:59,803 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:59,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:59,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1644491105, now seen corresponding path program 1 times [2021-10-13 00:59:59,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:59,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819734313] [2021-10-13 00:59:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:59,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:00:00,186 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 464 proven. 222 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 01:00:00,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:00:00,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819734313] [2021-10-13 01:00:00,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819734313] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:00:00,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958301239] [2021-10-13 01:00:00,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:00,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:00:00,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:00:00,193 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:00:00,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 01:00:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:00:01,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 01:00:01,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:00:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 464 proven. 222 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 01:00:05,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958301239] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:00:05,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:00:05,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-13 01:00:05,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343908909] [2021-10-13 01:00:05,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 01:00:05,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:00:05,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:00:05,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:00:05,291 INFO L87 Difference]: Start difference. First operand 36719 states and 39741 transitions. Second operand has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:00:08,826 INFO L93 Difference]: Finished difference Result 76187 states and 82314 transitions. [2021-10-13 01:00:08,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 01:00:08,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 505 [2021-10-13 01:00:08,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:00:08,866 INFO L225 Difference]: With dead ends: 76187 [2021-10-13 01:00:08,866 INFO L226 Difference]: Without dead ends: 39838 [2021-10-13 01:00:08,883 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 504 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 123.9ms TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2021-10-13 01:00:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39838 states. [2021-10-13 01:00:09,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39838 to 32453. [2021-10-13 01:00:09,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32453 states, 32452 states have (on average 1.0762356711450758) internal successors, (34926), 32452 states have internal predecessors, (34926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32453 states to 32453 states and 34926 transitions. [2021-10-13 01:00:09,511 INFO L78 Accepts]: Start accepts. Automaton has 32453 states and 34926 transitions. Word has length 505 [2021-10-13 01:00:09,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:00:09,511 INFO L470 AbstractCegarLoop]: Abstraction has 32453 states and 34926 transitions. [2021-10-13 01:00:09,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:09,512 INFO L276 IsEmpty]: Start isEmpty. Operand 32453 states and 34926 transitions. [2021-10-13 01:00:09,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2021-10-13 01:00:09,527 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:00:09,528 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:09,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-13 01:00:09,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-13 01:00:09,729 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:00:09,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:09,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1592139152, now seen corresponding path program 1 times [2021-10-13 01:00:09,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:09,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585416868] [2021-10-13 01:00:09,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:09,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:00:10,128 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 410 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-10-13 01:00:10,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:00:10,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585416868] [2021-10-13 01:00:10,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585416868] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:00:10,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556019321] [2021-10-13 01:00:10,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:10,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:00:10,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:00:10,131 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:00:10,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 01:00:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:00:11,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 01:00:11,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:00:15,858 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 356 proven. 260 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-10-13 01:00:15,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556019321] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:00:15,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:00:15,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-13 01:00:15,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823778130] [2021-10-13 01:00:15,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 01:00:15,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:00:15,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:00:15,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:00:15,862 INFO L87 Difference]: Start difference. First operand 32453 states and 34926 transitions. Second operand has 7 states, 7 states have (on average 66.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:20,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:00:20,385 INFO L93 Difference]: Finished difference Result 79652 states and 85859 transitions. [2021-10-13 01:00:20,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 01:00:20,386 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 66.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 541 [2021-10-13 01:00:20,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:00:20,438 INFO L225 Difference]: With dead ends: 79652 [2021-10-13 01:00:20,438 INFO L226 Difference]: Without dead ends: 48859 [2021-10-13 01:00:20,450 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 539 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 63.9ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:00:20,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48859 states. [2021-10-13 01:00:21,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48859 to 38165. [2021-10-13 01:00:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38165 states, 38164 states have (on average 1.0768525311812178) internal successors, (41097), 38164 states have internal predecessors, (41097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:21,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38165 states to 38165 states and 41097 transitions. [2021-10-13 01:00:21,123 INFO L78 Accepts]: Start accepts. Automaton has 38165 states and 41097 transitions. Word has length 541 [2021-10-13 01:00:21,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:00:21,123 INFO L470 AbstractCegarLoop]: Abstraction has 38165 states and 41097 transitions. [2021-10-13 01:00:21,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 66.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:21,124 INFO L276 IsEmpty]: Start isEmpty. Operand 38165 states and 41097 transitions. [2021-10-13 01:00:21,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2021-10-13 01:00:21,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:00:21,141 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:21,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:00:21,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-13 01:00:21,342 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:00:21,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:21,342 INFO L82 PathProgramCache]: Analyzing trace with hash 79502953, now seen corresponding path program 1 times [2021-10-13 01:00:21,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:21,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551515599] [2021-10-13 01:00:21,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:21,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:00:21,836 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 428 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-10-13 01:00:21,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:00:21,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551515599] [2021-10-13 01:00:21,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551515599] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:00:21,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152855409] [2021-10-13 01:00:21,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:21,837 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:00:21,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:00:21,840 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:00:21,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 01:00:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:00:23,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:00:23,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:00:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 367 proven. 54 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-13 01:00:25,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152855409] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:00:25,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:00:25,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-13 01:00:25,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061304181] [2021-10-13 01:00:25,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 01:00:25,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:00:25,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 01:00:25,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 01:00:25,216 INFO L87 Difference]: Start difference. First operand 38165 states and 41097 transitions. Second operand has 8 states, 8 states have (on average 87.375) internal successors, (699), 8 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:30,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:00:30,257 INFO L93 Difference]: Finished difference Result 92172 states and 99177 transitions. [2021-10-13 01:00:30,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 01:00:30,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 87.375) internal successors, (699), 8 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 552 [2021-10-13 01:00:30,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:00:30,317 INFO L225 Difference]: With dead ends: 92172 [2021-10-13 01:00:30,317 INFO L226 Difference]: Without dead ends: 57141 [2021-10-13 01:00:30,336 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 78.6ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-13 01:00:30,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57141 states. [2021-10-13 01:00:30,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57141 to 43507. [2021-10-13 01:00:30,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43507 states, 43506 states have (on average 1.0774375948145083) internal successors, (46875), 43506 states have internal predecessors, (46875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:31,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43507 states to 43507 states and 46875 transitions. [2021-10-13 01:00:31,024 INFO L78 Accepts]: Start accepts. Automaton has 43507 states and 46875 transitions. Word has length 552 [2021-10-13 01:00:31,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:00:31,025 INFO L470 AbstractCegarLoop]: Abstraction has 43507 states and 46875 transitions. [2021-10-13 01:00:31,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.375) internal successors, (699), 8 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:31,025 INFO L276 IsEmpty]: Start isEmpty. Operand 43507 states and 46875 transitions. [2021-10-13 01:00:31,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2021-10-13 01:00:31,050 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:00:31,050 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:31,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:00:31,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-13 01:00:31,251 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:00:31,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:31,252 INFO L82 PathProgramCache]: Analyzing trace with hash -2146043742, now seen corresponding path program 1 times [2021-10-13 01:00:31,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:31,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706207549] [2021-10-13 01:00:31,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:31,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:00:31,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 914 proven. 64 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2021-10-13 01:00:31,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:00:31,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706207549] [2021-10-13 01:00:31,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706207549] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:00:31,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042336376] [2021-10-13 01:00:31,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:31,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:00:31,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:00:31,833 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:00:31,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 01:00:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:00:33,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 01:00:33,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:00:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 1036 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-13 01:00:35,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042336376] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:00:35,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:00:35,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2021-10-13 01:00:35,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666759169] [2021-10-13 01:00:35,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:00:35,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:00:35,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:00:35,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:00:35,447 INFO L87 Difference]: Start difference. First operand 43507 states and 46875 transitions. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:37,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:00:37,056 INFO L93 Difference]: Finished difference Result 82584 states and 89034 transitions. [2021-10-13 01:00:37,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:00:37,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 638 [2021-10-13 01:00:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:00:37,057 INFO L225 Difference]: With dead ends: 82584 [2021-10-13 01:00:37,058 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 01:00:37,075 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 641 GetRequests, 636 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 30.2ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:00:37,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 01:00:37,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 01:00:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:37,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:00:37,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 638 [2021-10-13 01:00:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:00:37,077 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:00:37,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:00:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:00:37,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 01:00:37,080 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:00:37,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:00:37,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-13 01:00:37,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 01:00:37,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:00:42,379 WARN L207 SmtUtils]: Spent 5.08 s on a formula simplification. DAG size of input: 1162 DAG size of output: 647 [2021-10-13 01:00:42,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:00:46,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:00:52,813 WARN L207 SmtUtils]: Spent 6.27 s on a formula simplification. DAG size of input: 572 DAG size of output: 109 [2021-10-13 01:00:58,971 WARN L207 SmtUtils]: Spent 6.15 s on a formula simplification. DAG size of input: 572 DAG size of output: 109 [2021-10-13 01:00:58,976 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-13 01:00:58,976 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,976 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-13 01:00:58,976 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,976 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,976 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,977 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,977 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,977 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,977 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-13 01:00:58,977 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-13 01:00:58,977 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-13 01:00:58,978 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,979 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,979 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,980 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,980 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,980 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,981 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,981 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,981 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,981 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,981 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-13 01:00:58,981 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-13 01:00:58,981 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-13 01:00:58,981 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,981 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-13 01:00:58,982 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-13 01:00:58,982 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,982 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,982 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,982 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,982 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,982 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,982 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-13 01:00:58,982 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-13 01:00:58,983 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-13 01:00:58,983 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,983 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,983 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,983 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse15 (< 0 (+ ~a23~0 43))) (.cse17 (<= 141 ~a29~0))) (let ((.cse11 (or .cse15 (not (= ULTIMATE.start_calculate_output_~input 4)) .cse17)) (.cse0 (<= 0 (+ 589264 ~a29~0))) (.cse16 (< (+ ~a29~0 21) 0)) (.cse7 (= ~a25~0 12)) (.cse10 (<= 141 ~a23~0)) (.cse21 (<= ~a29~0 275)) (.cse9 (<= 245 ~a29~0)) (.cse13 (<= (+ 119992 ~a23~0) 0)) (.cse4 (<= ~a29~0 220)) (.cse22 (= ~a25~0 10)) (.cse2 (<= ~a25~0 10)) (.cse19 (<= 256 ~a29~0)) (.cse1 (= ~a4~0 0)) (.cse12 (= ~a25~0 11)) (.cse18 (<= ~a29~0 274)) (.cse5 (<= ~a23~0 312)) (.cse14 (= ~a25~0 13)) (.cse20 (<= 173 ~a23~0)) (.cse3 (= ~a3~0 1)) (.cse8 (= ~a4~0 1)) (.cse6 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse8 .cse6 .cse9 .cse10) (and .cse7 .cse11 .cse1 .cse3 .cse5 .cse6) (and (<= 260 ~a29~0) .cse1 .cse2 .cse3 .cse5 .cse6) (and .cse12 .cse13 .cse8 .cse6 .cse9) (and .cse0 .cse7 .cse11 .cse1 (<= (+ ~a29~0 580291) 0) .cse3 .cse6) (and .cse14 .cse1 .cse15 .cse3 .cse5 .cse6) (and .cse7 .cse3 .cse8 .cse6 .cse16) (and .cse12 .cse3 .cse8 .cse6 (<= 103953 ~a29~0)) (and .cse7 .cse17 .cse3 .cse8 (<= ~a29~0 232) .cse6 .cse10) (and .cse7 .cse1 .cse18 .cse17 .cse3 .cse6) (and .cse19 .cse1 .cse12 .cse3 .cse13 .cse6) (and .cse0 .cse1 .cse12 .cse3 .cse4 .cse5 .cse6) (and .cse14 .cse18 .cse17 .cse3 .cse8 .cse6) (and .cse2 .cse17 .cse3 .cse8 .cse6) (and .cse1 .cse12 .cse3 .cse4 .cse13 .cse6) (and .cse12 .cse20 .cse3 .cse8 .cse5 .cse6) (and .cse14 .cse3 .cse4 (<= 0 (+ 7792 ~a29~0)) .cse8 .cse6 .cse10) (and .cse21 .cse7 .cse1 .cse3 .cse6 .cse9) (and .cse2 .cse3 .cse8 .cse5 .cse6 .cse16 .cse10) (and .cse1 .cse15 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse12 .cse3 .cse8 .cse6 .cse9 .cse10) (and .cse7 .cse3 .cse8 .cse5 .cse6 .cse10) (and .cse3 .cse8 .cse6 (<= 115953 ~a29~0)) (and .cse3 .cse8 .cse6 .cse22) (and .cse21 .cse12 .cse3 .cse8 .cse6 .cse9) (and .cse13 .cse8 .cse6 .cse22) (and .cse1 .cse15 .cse3 .cse4 .cse6 .cse22) (and .cse2 .cse20 .cse3 .cse8 .cse5 .cse6) (and .cse12 .cse18 .cse17 .cse3 .cse8 .cse6) (and .cse19 .cse1 .cse12 .cse18 .cse3 .cse5 .cse6) (and .cse14 .cse20 .cse3 .cse8 .cse6)))) [2021-10-13 01:00:58,983 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,984 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-13 01:00:58,984 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-13 01:00:58,984 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,984 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,984 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,984 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,984 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,984 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,985 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-13 01:00:58,985 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-13 01:00:58,986 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-13 01:00:58,993 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-13 01:00:58,993 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,993 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,993 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,994 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,994 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,994 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,994 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,994 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-13 01:00:58,994 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-13 01:00:58,994 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-13 01:00:58,994 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,994 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,995 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,995 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,995 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,995 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,995 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,995 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:58,996 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,996 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-13 01:00:58,996 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-13 01:00:58,996 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-13 01:00:58,996 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-13 01:00:58,997 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse15 (< 0 (+ ~a23~0 43))) (.cse17 (<= 141 ~a29~0))) (let ((.cse11 (or .cse15 (not (= ULTIMATE.start_calculate_output_~input 4)) .cse17)) (.cse0 (<= 0 (+ 589264 ~a29~0))) (.cse16 (< (+ ~a29~0 21) 0)) (.cse7 (= ~a25~0 12)) (.cse10 (<= 141 ~a23~0)) (.cse21 (<= ~a29~0 275)) (.cse9 (<= 245 ~a29~0)) (.cse13 (<= (+ 119992 ~a23~0) 0)) (.cse4 (<= ~a29~0 220)) (.cse22 (= ~a25~0 10)) (.cse2 (<= ~a25~0 10)) (.cse19 (<= 256 ~a29~0)) (.cse1 (= ~a4~0 0)) (.cse12 (= ~a25~0 11)) (.cse18 (<= ~a29~0 274)) (.cse5 (<= ~a23~0 312)) (.cse14 (= ~a25~0 13)) (.cse20 (<= 173 ~a23~0)) (.cse3 (= ~a3~0 1)) (.cse8 (= ~a4~0 1)) (.cse6 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse8 .cse6 .cse9 .cse10) (and .cse7 .cse11 .cse1 .cse3 .cse5 .cse6) (and (<= 260 ~a29~0) .cse1 .cse2 .cse3 .cse5 .cse6) (and .cse12 .cse13 .cse8 .cse6 .cse9) (and .cse0 .cse7 .cse11 .cse1 (<= (+ ~a29~0 580291) 0) .cse3 .cse6) (and .cse14 .cse1 .cse15 .cse3 .cse5 .cse6) (and .cse7 .cse3 .cse8 .cse6 .cse16) (and .cse12 .cse3 .cse8 .cse6 (<= 103953 ~a29~0)) (and .cse7 .cse17 .cse3 .cse8 (<= ~a29~0 232) .cse6 .cse10) (and .cse7 .cse1 .cse18 .cse17 .cse3 .cse6) (and .cse19 .cse1 .cse12 .cse3 .cse13 .cse6) (and .cse0 .cse1 .cse12 .cse3 .cse4 .cse5 .cse6) (and .cse14 .cse18 .cse17 .cse3 .cse8 .cse6) (and .cse2 .cse17 .cse3 .cse8 .cse6) (and .cse1 .cse12 .cse3 .cse4 .cse13 .cse6) (and .cse12 .cse20 .cse3 .cse8 .cse5 .cse6) (and .cse14 .cse3 .cse4 (<= 0 (+ 7792 ~a29~0)) .cse8 .cse6 .cse10) (and .cse21 .cse7 .cse1 .cse3 .cse6 .cse9) (and .cse2 .cse3 .cse8 .cse5 .cse6 .cse16 .cse10) (and .cse1 .cse15 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse12 .cse3 .cse8 .cse6 .cse9 .cse10) (and .cse7 .cse3 .cse8 .cse5 .cse6 .cse10) (and .cse3 .cse8 .cse6 (<= 115953 ~a29~0)) (and .cse3 .cse8 .cse6 .cse22) (and .cse21 .cse12 .cse3 .cse8 .cse6 .cse9) (and .cse13 .cse8 .cse6 .cse22) (and .cse1 .cse15 .cse3 .cse4 .cse6 .cse22) (and .cse2 .cse20 .cse3 .cse8 .cse5 .cse6) (and .cse12 .cse18 .cse17 .cse3 .cse8 .cse6) (and .cse19 .cse1 .cse12 .cse18 .cse3 .cse5 .cse6) (and .cse14 .cse20 .cse3 .cse8 .cse6)))) [2021-10-13 01:00:59,012 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,012 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,013 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,013 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,013 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,013 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,013 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,014 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,014 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-13 01:00:59,014 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-13 01:00:59,014 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-13 01:00:59,014 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-13 01:00:59,015 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-13 01:00:59,015 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-13 01:00:59,015 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-13 01:00:59,015 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,015 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,016 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,016 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,016 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,016 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,017 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,017 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,017 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,017 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,017 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 01:00:59,018 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-13 01:00:59,018 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-13 01:00:59,018 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-13 01:00:59,018 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-13 01:00:59,018 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,019 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,019 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,019 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,019 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,019 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-13 01:00:59,020 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-13 01:00:59,020 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-13 01:00:59,020 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,020 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,020 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,021 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,021 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-13 01:00:59,021 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-13 01:00:59,021 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,022 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,022 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,022 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,022 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,022 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,023 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-13 01:00:59,023 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-13 01:00:59,023 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,023 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,023 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-13 01:00:59,024 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-13 01:00:59,024 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-13 01:00:59,024 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 01:00:59,024 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 184) no Hoare annotation was computed. [2021-10-13 01:00:59,025 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,025 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,025 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,025 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,025 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,026 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,026 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,026 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-13 01:00:59,026 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-13 01:00:59,026 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-13 01:00:59,027 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-13 01:00:59,027 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-13 01:00:59,027 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-13 01:00:59,027 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-13 01:00:59,027 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,028 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,028 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-13 01:00:59,028 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-13 01:00:59,028 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,029 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,029 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,029 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,029 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,029 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-13 01:00:59,030 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-13 01:00:59,030 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-13 01:00:59,030 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,030 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,030 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,031 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,031 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,031 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,031 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-13 01:00:59,031 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-13 01:00:59,032 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-13 01:00:59,032 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,032 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,032 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,032 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,033 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,033 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,033 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,033 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,034 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-13 01:00:59,034 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-13 01:00:59,034 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-13 01:00:59,034 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,034 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,035 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,035 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,035 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,035 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,035 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,036 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,036 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,036 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,036 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,036 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-13 01:00:59,037 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-13 01:00:59,037 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-13 01:00:59,037 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-13 01:00:59,037 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-13 01:00:59,037 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,038 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,038 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,038 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,038 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,038 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,039 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,039 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-13 01:00:59,039 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-13 01:00:59,039 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-13 01:00:59,040 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,040 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,040 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,040 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-13 01:00:59,040 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-13 01:00:59,041 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,041 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,041 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,041 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,041 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,042 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-13 01:00:59,042 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-13 01:00:59,042 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,042 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,042 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-13 01:00:59,043 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-13 01:00:59,043 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,043 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 01:00:59,043 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,043 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,044 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,044 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,044 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,044 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-13 01:00:59,044 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-13 01:00:59,045 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-13 01:00:59,045 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-13 01:00:59,045 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,045 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,046 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,046 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,046 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,046 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,046 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,047 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,048 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-13 01:00:59,048 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-13 01:00:59,049 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-13 01:00:59,049 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-13 01:00:59,049 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-13 01:00:59,050 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-13 01:00:59,050 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,050 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,051 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,051 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,052 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,054 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,054 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,054 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-13 01:00:59,054 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-13 01:00:59,055 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 01:00:59,055 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,055 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,055 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,055 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,057 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,057 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,057 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-13 01:00:59,057 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-13 01:00:59,057 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,058 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,058 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,058 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,058 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,058 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,059 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,059 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-13 01:00:59,059 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:00:59,059 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,059 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,060 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-13 01:00:59,060 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-13 01:00:59,060 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-13 01:00:59,060 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-13 01:00:59,070 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:00:59,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:00:59 BoogieIcfgContainer [2021-10-13 01:00:59,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:00:59,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:00:59,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:00:59,145 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:00:59,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:56" (3/4) ... [2021-10-13 01:00:59,149 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 01:00:59,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 01:00:59,190 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 01:00:59,192 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:00:59,195 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:00:59,387 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:00:59,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:00:59,389 INFO L168 Benchmark]: Toolchain (without parser) took 126464.86 ms. Allocated memory was 104.9 MB in the beginning and 8.7 GB in the end (delta: 8.6 GB). Free memory was 70.5 MB in the beginning and 4.9 GB in the end (delta: -4.8 GB). Peak memory consumption was 3.8 GB. Max. memory is 16.1 GB. [2021-10-13 01:00:59,389 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 104.9 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:00:59,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1210.17 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 70.2 MB in the beginning and 115.9 MB in the end (delta: -45.7 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:59,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 237.12 ms. Allocated memory is still 146.8 MB. Free memory was 115.9 MB in the beginning and 98.7 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:59,391 INFO L168 Benchmark]: Boogie Preprocessor took 139.54 ms. Allocated memory is still 146.8 MB. Free memory was 98.7 MB in the beginning and 89.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:59,391 INFO L168 Benchmark]: RCFGBuilder took 2394.78 ms. Allocated memory is still 146.8 MB. Free memory was 89.4 MB in the beginning and 71.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:59,392 INFO L168 Benchmark]: TraceAbstraction took 122226.59 ms. Allocated memory was 146.8 MB in the beginning and 8.7 GB in the end (delta: 8.5 GB). Free memory was 70.8 MB in the beginning and 4.9 GB in the end (delta: -4.8 GB). Peak memory consumption was 3.7 GB. Max. memory is 16.1 GB. [2021-10-13 01:00:59,392 INFO L168 Benchmark]: Witness Printer took 243.25 ms. Allocated memory is still 8.7 GB. Free memory was 4.9 GB in the beginning and 4.9 GB in the end (delta: 26.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:59,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 104.9 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1210.17 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 70.2 MB in the beginning and 115.9 MB in the end (delta: -45.7 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 237.12 ms. Allocated memory is still 146.8 MB. Free memory was 115.9 MB in the beginning and 98.7 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 139.54 ms. Allocated memory is still 146.8 MB. Free memory was 98.7 MB in the beginning and 89.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2394.78 ms. Allocated memory is still 146.8 MB. Free memory was 89.4 MB in the beginning and 71.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 122226.59 ms. Allocated memory was 146.8 MB in the beginning and 8.7 GB in the end (delta: 8.5 GB). Free memory was 70.8 MB in the beginning and 4.9 GB in the end (delta: -4.8 GB). Peak memory consumption was 3.7 GB. Max. memory is 16.1 GB. * Witness Printer took 243.25 ms. Allocated memory is still 8.7 GB. Free memory was 4.9 GB in the beginning and 4.9 GB in the end (delta: 26.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 184]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 122066.7ms, OverallIterations: 29, TraceHistogramMax: 6, EmptinessCheckTime: 433.1ms, AutomataDifference: 52732.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 21694.0ms, InitialAbstractionConstructionTime: 23.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4613 SDtfs, 9485 SDslu, 1025 SDs, 0 SdLazy, 32530 SolverSat, 4896 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36398.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3615 GetRequests, 3529 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 538.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=43507occurred in iteration=28, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10881.5ms AutomataMinimizationTime, 29 MinimizatonAttempts, 58574 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 473 NumberOfFragments, 1297 HoareAnnotationTreeSize, 3 FomulaSimplifications, 748718 FormulaSimplificationTreeSizeReduction, 9243.7ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 578614 FormulaSimplificationTreeSizeReductionInter, 12431.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1018.6ms SsaConstructionTime, 2836.6ms SatisfiabilityAnalysisTime, 24735.7ms InterpolantComputationTime, 13660 NumberOfCodeBlocks, 13660 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 13624 ConstructedInterpolants, 0 QuantifiedInterpolants, 44963 SizeOfPredicates, 6 NumberOfNonLiveVariables, 4731 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 36 InterpolantComputations, 25 PerfectInterpolantSequences, 15483/17319 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((0 <= 589264 + a29 && a4 == 0) && a25 <= 10) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29) && 141 <= a23)) || (((((a25 == 12 && ((0 < a23 + 43 || !(input == 4)) || 141 <= a29)) && a4 == 0) && a3 == 1) && a23 <= 312) && a8 == 15)) || (((((260 <= a29 && a4 == 0) && a25 <= 10) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 11 && 119992 + a23 <= 0) && a4 == 1) && a8 == 15) && 245 <= a29)) || ((((((0 <= 589264 + a29 && a25 == 12) && ((0 < a23 + 43 || !(input == 4)) || 141 <= a29)) && a4 == 0) && a29 + 580291 <= 0) && a3 == 1) && a8 == 15)) || (((((a25 == 13 && a4 == 0) && 0 < a23 + 43) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 12 && a3 == 1) && a4 == 1) && a8 == 15) && a29 + 21 < 0)) || ((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) && 103953 <= a29)) || ((((((a25 == 12 && 141 <= a29) && a3 == 1) && a4 == 1) && a29 <= 232) && a8 == 15) && 141 <= a23)) || (((((a25 == 12 && a4 == 0) && a29 <= 274) && 141 <= a29) && a3 == 1) && a8 == 15)) || (((((256 <= a29 && a4 == 0) && a25 == 11) && a3 == 1) && 119992 + a23 <= 0) && a8 == 15)) || ((((((0 <= 589264 + a29 && a4 == 0) && a25 == 11) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || (((((a25 == 13 && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 <= 10 && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a4 == 0 && a25 == 11) && a3 == 1) && a29 <= 220) && 119992 + a23 <= 0) && a8 == 15)) || (((((a25 == 11 && 173 <= a23) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || ((((((a25 == 13 && a3 == 1) && a29 <= 220) && 0 <= 7792 + a29) && a4 == 1) && a8 == 15) && 141 <= a23)) || (((((a29 <= 275 && a25 == 12) && a4 == 0) && a3 == 1) && a8 == 15) && 245 <= a29)) || ((((((a25 <= 10 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && a29 + 21 < 0) && 141 <= a23)) || ((((((a4 == 0 && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || (((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29) && 141 <= a23)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 141 <= a23)) || (((a3 == 1 && a4 == 1) && a8 == 15) && 115953 <= a29)) || (((a3 == 1 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a29 <= 275 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29)) || (((119992 + a23 <= 0 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a4 == 0 && 0 < a23 + 43) && a3 == 1) && a29 <= 220) && a8 == 15) && a25 == 10)) || (((((a25 <= 10 && 173 <= a23) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 == 11 && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((256 <= a29 && a4 == 0) && a25 == 11) && a29 <= 274) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 13 && 173 <= a23) && a3 == 1) && a4 == 1) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((0 <= 589264 + a29 && a4 == 0) && a25 <= 10) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29) && 141 <= a23)) || (((((a25 == 12 && ((0 < a23 + 43 || !(input == 4)) || 141 <= a29)) && a4 == 0) && a3 == 1) && a23 <= 312) && a8 == 15)) || (((((260 <= a29 && a4 == 0) && a25 <= 10) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 11 && 119992 + a23 <= 0) && a4 == 1) && a8 == 15) && 245 <= a29)) || ((((((0 <= 589264 + a29 && a25 == 12) && ((0 < a23 + 43 || !(input == 4)) || 141 <= a29)) && a4 == 0) && a29 + 580291 <= 0) && a3 == 1) && a8 == 15)) || (((((a25 == 13 && a4 == 0) && 0 < a23 + 43) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 12 && a3 == 1) && a4 == 1) && a8 == 15) && a29 + 21 < 0)) || ((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) && 103953 <= a29)) || ((((((a25 == 12 && 141 <= a29) && a3 == 1) && a4 == 1) && a29 <= 232) && a8 == 15) && 141 <= a23)) || (((((a25 == 12 && a4 == 0) && a29 <= 274) && 141 <= a29) && a3 == 1) && a8 == 15)) || (((((256 <= a29 && a4 == 0) && a25 == 11) && a3 == 1) && 119992 + a23 <= 0) && a8 == 15)) || ((((((0 <= 589264 + a29 && a4 == 0) && a25 == 11) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || (((((a25 == 13 && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 <= 10 && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a4 == 0 && a25 == 11) && a3 == 1) && a29 <= 220) && 119992 + a23 <= 0) && a8 == 15)) || (((((a25 == 11 && 173 <= a23) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || ((((((a25 == 13 && a3 == 1) && a29 <= 220) && 0 <= 7792 + a29) && a4 == 1) && a8 == 15) && 141 <= a23)) || (((((a29 <= 275 && a25 == 12) && a4 == 0) && a3 == 1) && a8 == 15) && 245 <= a29)) || ((((((a25 <= 10 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && a29 + 21 < 0) && 141 <= a23)) || ((((((a4 == 0 && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || (((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29) && 141 <= a23)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 141 <= a23)) || (((a3 == 1 && a4 == 1) && a8 == 15) && 115953 <= a29)) || (((a3 == 1 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a29 <= 275 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29)) || (((119992 + a23 <= 0 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a4 == 0 && 0 < a23 + 43) && a3 == 1) && a29 <= 220) && a8 == 15) && a25 == 10)) || (((((a25 <= 10 && 173 <= a23) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 == 11 && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((256 <= a29 && a4 == 0) && a25 == 11) && a29 <= 274) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 13 && 173 <= a23) && a3 == 1) && a4 == 1) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 01:00:59,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530e703e-3cc3-4a2e-a521-5f56f17714a0/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...