./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label09.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_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/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_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/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_84ec0ac7-e44f-4f43-9725-3fda7588d306/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 4ea6fc2da400c6409d02bc395e547eb6158b1e4a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:11:56,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:11:56,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:11:56,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:11:56,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:11:56,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:11:56,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:11:56,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:11:56,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:11:56,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:11:56,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:11:56,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:11:56,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:11:56,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:11:56,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:11:56,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:11:56,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:11:56,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:11:56,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:11:56,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:11:56,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:11:56,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:11:56,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:11:56,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:11:56,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:11:56,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:11:56,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:11:56,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:11:56,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:11:56,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:11:56,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:11:56,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:11:56,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:11:56,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:11:56,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:11:56,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:11:56,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:11:56,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:11:56,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:11:56,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:11:56,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:11:56,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:11:56,272 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:11:56,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:11:56,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:11:56,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:11:56,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:11:56,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:11:56,282 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:11:56,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:11:56,282 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:11:56,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:11:56,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:11:56,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:11:56,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:11:56,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:11:56,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:11:56,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:11:56,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:11:56,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:11:56,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:11:56,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:11:56,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:11:56,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:11:56,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:11:56,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:11:56,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:11:56,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:11:56,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:11:56,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:11:56,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:11:56,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:11:56,289 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_84ec0ac7-e44f-4f43-9725-3fda7588d306/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ea6fc2da400c6409d02bc395e547eb6158b1e4a [2021-10-13 01:11:56,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:11:56,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:11:56,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:11:56,590 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:11:56,591 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:11:56,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem14_label09.c [2021-10-13 01:11:56,662 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/data/e736b47f9/8e4c1dd43d5442f8b9cde69fb33f47be/FLAG7ea0687ba [2021-10-13 01:11:57,238 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:11:57,256 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/sv-benchmarks/c/eca-rers2012/Problem14_label09.c [2021-10-13 01:11:57,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/data/e736b47f9/8e4c1dd43d5442f8b9cde69fb33f47be/FLAG7ea0687ba [2021-10-13 01:11:57,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/data/e736b47f9/8e4c1dd43d5442f8b9cde69fb33f47be [2021-10-13 01:11:57,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:11:57,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:11:57,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:11:57,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:11:57,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:11:57,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:11:57" (1/1) ... [2021-10-13 01:11:57,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d2bcb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:57, skipping insertion in model container [2021-10-13 01:11:57,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:11:57" (1/1) ... [2021-10-13 01:11:57,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:11:57,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:11:57,790 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_84ec0ac7-e44f-4f43-9725-3fda7588d306/sv-benchmarks/c/eca-rers2012/Problem14_label09.c[4722,4735] [2021-10-13 01:11:58,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:11:58,060 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:11:58,089 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_84ec0ac7-e44f-4f43-9725-3fda7588d306/sv-benchmarks/c/eca-rers2012/Problem14_label09.c[4722,4735] [2021-10-13 01:11:58,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:11:58,306 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:11:58,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58 WrapperNode [2021-10-13 01:11:58,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:11:58,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:11:58,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:11:58,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:11:58,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (1/1) ... [2021-10-13 01:11:58,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (1/1) ... [2021-10-13 01:11:58,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:11:58,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:11:58,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:11:58,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:11:58,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (1/1) ... [2021-10-13 01:11:58,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (1/1) ... [2021-10-13 01:11:58,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (1/1) ... [2021-10-13 01:11:58,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (1/1) ... [2021-10-13 01:11:58,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (1/1) ... [2021-10-13 01:11:58,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (1/1) ... [2021-10-13 01:11:58,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (1/1) ... [2021-10-13 01:11:58,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:11:58,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:11:58,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:11:58,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:11:58,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (1/1) ... [2021-10-13 01:11:58,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:11:58,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:11:58,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:11:58,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:11:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:11:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:11:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:11:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:12:00,222 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:12:00,223 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 01:12:00,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:12:00 BoogieIcfgContainer [2021-10-13 01:12:00,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:12:00,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:12:00,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:12:00,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:12:00,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:11:57" (1/3) ... [2021-10-13 01:12:00,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd40f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:12:00, skipping insertion in model container [2021-10-13 01:12:00,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:11:58" (2/3) ... [2021-10-13 01:12:00,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd40f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:12:00, skipping insertion in model container [2021-10-13 01:12:00,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:12:00" (3/3) ... [2021-10-13 01:12:00,236 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label09.c [2021-10-13 01:12:00,241 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:12:00,242 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:12:00,298 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:12:00,306 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 01:12:00,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:12:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 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 01:12:00,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-13 01:12:00,342 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:00,342 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] [2021-10-13 01:12:00,343 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:00,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:00,349 INFO L82 PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times [2021-10-13 01:12:00,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:00,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776541174] [2021-10-13 01:12:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:00,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:00,660 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 01:12:00,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:00,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776541174] [2021-10-13 01:12:00,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776541174] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:00,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:00,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:00,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404178780] [2021-10-13 01:12:00,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:12:00,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:00,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:12:00,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:12:00,690 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 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 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 01:12:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:02,578 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2021-10-13 01:12:02,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:12:02,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2021-10-13 01:12:02,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:02,597 INFO L225 Difference]: With dead ends: 850 [2021-10-13 01:12:02,598 INFO L226 Difference]: Without dead ends: 538 [2021-10-13 01:12:02,602 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:12:02,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-13 01:12:02,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-10-13 01:12:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 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 01:12:02,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-10-13 01:12:02,678 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 45 [2021-10-13 01:12:02,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:02,679 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-10-13 01:12:02,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 01:12:02,679 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-10-13 01:12:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-13 01:12:02,685 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:02,685 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:02,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:12:02,686 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:02,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:02,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1796285180, now seen corresponding path program 1 times [2021-10-13 01:12:02,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:02,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042651708] [2021-10-13 01:12:02,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:02,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:12:03,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:03,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042651708] [2021-10-13 01:12:03,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042651708] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:03,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:03,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:03,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601402861] [2021-10-13 01:12:03,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:12:03,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:03,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:12:03,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:12:03,012 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 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 01:12:03,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:03,917 INFO L93 Difference]: Finished difference Result 1281 states and 1978 transitions. [2021-10-13 01:12:03,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:12:03,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 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 01:12:03,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:03,924 INFO L225 Difference]: With dead ends: 1281 [2021-10-13 01:12:03,924 INFO L226 Difference]: Without dead ends: 894 [2021-10-13 01:12:03,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:12:03,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-10-13 01:12:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 716. [2021-10-13 01:12:03,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.220979020979021) internal successors, (873), 715 states have internal predecessors, (873), 0 states have call successors, (0), 0 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 01:12:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 873 transitions. [2021-10-13 01:12:03,967 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 873 transitions. Word has length 125 [2021-10-13 01:12:03,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:03,968 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 873 transitions. [2021-10-13 01:12:03,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 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 01:12:03,968 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 873 transitions. [2021-10-13 01:12:03,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-10-13 01:12:03,982 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:03,983 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, 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] [2021-10-13 01:12:03,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 01:12:03,983 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:03,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:03,984 INFO L82 PathProgramCache]: Analyzing trace with hash -2036921752, now seen corresponding path program 1 times [2021-10-13 01:12:03,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:03,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933030653] [2021-10-13 01:12:03,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:03,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 85 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:12:04,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:04,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933030653] [2021-10-13 01:12:04,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933030653] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:04,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730496589] [2021-10-13 01:12:04,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:04,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:04,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:12:04,205 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:12:04,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 01:12:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:04,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:12:04,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:12:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-13 01:12:05,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730496589] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:05,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:12:05,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-13 01:12:05,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177038522] [2021-10-13 01:12:05,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:05,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:12:05,289 INFO L87 Difference]: Start difference. First operand 716 states and 873 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 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 01:12:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:05,894 INFO L93 Difference]: Finished difference Result 1608 states and 2071 transitions. [2021-10-13 01:12:05,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:05,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 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 216 [2021-10-13 01:12:05,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:05,902 INFO L225 Difference]: With dead ends: 1608 [2021-10-13 01:12:05,902 INFO L226 Difference]: Without dead ends: 1072 [2021-10-13 01:12:05,903 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.3ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:12:05,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-13 01:12:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-10-13 01:12:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.2156862745098038) internal successors, (1302), 1071 states have internal predecessors, (1302), 0 states have call successors, (0), 0 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 01:12:05,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1302 transitions. [2021-10-13 01:12:05,947 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1302 transitions. Word has length 216 [2021-10-13 01:12:05,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:05,948 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1302 transitions. [2021-10-13 01:12:05,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 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 01:12:05,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1302 transitions. [2021-10-13 01:12:05,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-10-13 01:12:05,965 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:05,965 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, 2, 2, 2, 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] [2021-10-13 01:12:06,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:12:06,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:06,188 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:06,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1670561777, now seen corresponding path program 1 times [2021-10-13 01:12:06,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:06,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13236331] [2021-10-13 01:12:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:06,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:06,373 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:12:06,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:06,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13236331] [2021-10-13 01:12:06,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13236331] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:06,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:06,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:06,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291621126] [2021-10-13 01:12:06,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:06,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:06,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:06,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:06,381 INFO L87 Difference]: Start difference. First operand 1072 states and 1302 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 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 01:12:07,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:07,019 INFO L93 Difference]: Finished difference Result 2498 states and 3070 transitions. [2021-10-13 01:12:07,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:07,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 219 [2021-10-13 01:12:07,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:07,030 INFO L225 Difference]: With dead ends: 2498 [2021-10-13 01:12:07,030 INFO L226 Difference]: Without dead ends: 1606 [2021-10-13 01:12:07,032 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:07,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-10-13 01:12:07,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2021-10-13 01:12:07,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.168847352024922) internal successors, (1876), 1605 states have internal predecessors, (1876), 0 states have call successors, (0), 0 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 01:12:07,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1876 transitions. [2021-10-13 01:12:07,074 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1876 transitions. Word has length 219 [2021-10-13 01:12:07,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:07,075 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1876 transitions. [2021-10-13 01:12:07,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 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 01:12:07,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1876 transitions. [2021-10-13 01:12:07,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-10-13 01:12:07,081 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:07,082 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:12:07,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 01:12:07,082 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:07,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:07,083 INFO L82 PathProgramCache]: Analyzing trace with hash -841281577, now seen corresponding path program 1 times [2021-10-13 01:12:07,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:07,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209051329] [2021-10-13 01:12:07,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:07,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:07,330 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-10-13 01:12:07,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:07,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209051329] [2021-10-13 01:12:07,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209051329] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:07,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:07,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:07,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271016437] [2021-10-13 01:12:07,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:12:07,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:07,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:12:07,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:12:07,334 INFO L87 Difference]: Start difference. First operand 1606 states and 1876 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 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 01:12:08,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:08,067 INFO L93 Difference]: Finished difference Result 3061 states and 3636 transitions. [2021-10-13 01:12:08,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:12:08,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 336 [2021-10-13 01:12:08,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:08,077 INFO L225 Difference]: With dead ends: 3061 [2021-10-13 01:12:08,077 INFO L226 Difference]: Without dead ends: 1784 [2021-10-13 01:12:08,079 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:12:08,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-10-13 01:12:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2021-10-13 01:12:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1196261682242992) internal successors, (1797), 1605 states have internal predecessors, (1797), 0 states have call successors, (0), 0 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 01:12:08,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1797 transitions. [2021-10-13 01:12:08,122 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1797 transitions. Word has length 336 [2021-10-13 01:12:08,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:08,123 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1797 transitions. [2021-10-13 01:12:08,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 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 01:12:08,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1797 transitions. [2021-10-13 01:12:08,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-10-13 01:12:08,132 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:08,132 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:08,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 01:12:08,133 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:08,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:08,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1590776259, now seen corresponding path program 1 times [2021-10-13 01:12:08,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:08,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715943485] [2021-10-13 01:12:08,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:08,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:08,354 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-10-13 01:12:08,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:08,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715943485] [2021-10-13 01:12:08,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715943485] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:08,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606624180] [2021-10-13 01:12:08,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:08,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:08,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:12:08,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:12:08,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 01:12:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:08,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:12:08,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:12:09,992 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-10-13 01:12:09,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606624180] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:09,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:12:09,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-13 01:12:09,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845948839] [2021-10-13 01:12:09,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:09,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:09,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:09,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:12:09,995 INFO L87 Difference]: Start difference. First operand 1606 states and 1797 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:12:10,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:10,499 INFO L93 Difference]: Finished difference Result 2320 states and 2566 transitions. [2021-10-13 01:12:10,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:10,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 425 [2021-10-13 01:12:10,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:10,512 INFO L225 Difference]: With dead ends: 2320 [2021-10-13 01:12:10,512 INFO L226 Difference]: Without dead ends: 2318 [2021-10-13 01:12:10,514 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:12:10,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-10-13 01:12:10,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1428. [2021-10-13 01:12:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.0939032936229853) internal successors, (1561), 1427 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:12:10,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1561 transitions. [2021-10-13 01:12:10,581 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1561 transitions. Word has length 425 [2021-10-13 01:12:10,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:10,582 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1561 transitions. [2021-10-13 01:12:10,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:12:10,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1561 transitions. [2021-10-13 01:12:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2021-10-13 01:12:10,593 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:10,593 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, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 01:12:10,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:12:10,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-13 01:12:10,820 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:10,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:10,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1026613071, now seen corresponding path program 1 times [2021-10-13 01:12:10,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:10,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060875924] [2021-10-13 01:12:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:10,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:12:11,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:11,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060875924] [2021-10-13 01:12:11,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060875924] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:11,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:11,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:11,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013097821] [2021-10-13 01:12:11,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:11,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:11,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:11,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:11,043 INFO L87 Difference]: Start difference. First operand 1428 states and 1561 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 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 01:12:11,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:11,604 INFO L93 Difference]: Finished difference Result 3210 states and 3559 transitions. [2021-10-13 01:12:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:11,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 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 431 [2021-10-13 01:12:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:11,617 INFO L225 Difference]: With dead ends: 3210 [2021-10-13 01:12:11,617 INFO L226 Difference]: Without dead ends: 1962 [2021-10-13 01:12:11,619 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:11,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-13 01:12:11,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1606. [2021-10-13 01:12:11,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0841121495327102) internal successors, (1740), 1605 states have internal predecessors, (1740), 0 states have call successors, (0), 0 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 01:12:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1740 transitions. [2021-10-13 01:12:11,667 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1740 transitions. Word has length 431 [2021-10-13 01:12:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:11,667 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1740 transitions. [2021-10-13 01:12:11,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 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 01:12:11,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1740 transitions. [2021-10-13 01:12:11,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2021-10-13 01:12:11,671 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:11,672 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, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:12:11,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 01:12:11,672 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:11,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:11,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1829033834, now seen corresponding path program 1 times [2021-10-13 01:12:11,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:11,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778749243] [2021-10-13 01:12:11,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:11,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:11,879 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:12:11,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:11,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778749243] [2021-10-13 01:12:11,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778749243] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:11,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:11,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:11,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634139594] [2021-10-13 01:12:11,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:11,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:11,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:11,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:11,883 INFO L87 Difference]: Start difference. First operand 1606 states and 1740 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 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 01:12:12,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:12,461 INFO L93 Difference]: Finished difference Result 3744 states and 4121 transitions. [2021-10-13 01:12:12,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:12,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 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 438 [2021-10-13 01:12:12,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:12,477 INFO L225 Difference]: With dead ends: 3744 [2021-10-13 01:12:12,477 INFO L226 Difference]: Without dead ends: 2318 [2021-10-13 01:12:12,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-10-13 01:12:12,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2021-10-13 01:12:12,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0884764782045748) internal successors, (2522), 2317 states have internal predecessors, (2522), 0 states have call successors, (0), 0 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 01:12:12,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2522 transitions. [2021-10-13 01:12:12,535 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2522 transitions. Word has length 438 [2021-10-13 01:12:12,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:12,536 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2522 transitions. [2021-10-13 01:12:12,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 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 01:12:12,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2522 transitions. [2021-10-13 01:12:12,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-10-13 01:12:12,544 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:12,544 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:12:12,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 01:12:12,549 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:12,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:12,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1313117521, now seen corresponding path program 1 times [2021-10-13 01:12:12,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:12,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036713880] [2021-10-13 01:12:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:12,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 491 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:12:12,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:12,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036713880] [2021-10-13 01:12:12,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036713880] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:12,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:12,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:12,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46026143] [2021-10-13 01:12:12,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:12,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:12,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:12,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:12,766 INFO L87 Difference]: Start difference. First operand 2318 states and 2522 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 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 01:12:13,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:13,338 INFO L93 Difference]: Finished difference Result 5702 states and 6287 transitions. [2021-10-13 01:12:13,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:13,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 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 479 [2021-10-13 01:12:13,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:13,358 INFO L225 Difference]: With dead ends: 5702 [2021-10-13 01:12:13,358 INFO L226 Difference]: Without dead ends: 3564 [2021-10-13 01:12:13,361 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:13,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-10-13 01:12:13,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-10-13 01:12:13,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0820081072653571) internal successors, (3470), 3207 states have internal predecessors, (3470), 0 states have call successors, (0), 0 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 01:12:13,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3470 transitions. [2021-10-13 01:12:13,448 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3470 transitions. Word has length 479 [2021-10-13 01:12:13,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:13,449 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3470 transitions. [2021-10-13 01:12:13,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 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 01:12:13,450 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3470 transitions. [2021-10-13 01:12:13,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2021-10-13 01:12:13,456 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:13,457 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:12:13,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 01:12:13,457 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:13,458 INFO L82 PathProgramCache]: Analyzing trace with hash -2019878851, now seen corresponding path program 1 times [2021-10-13 01:12:13,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:13,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691943071] [2021-10-13 01:12:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:13,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1545 backedges. 1084 proven. 104 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-10-13 01:12:13,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:13,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691943071] [2021-10-13 01:12:13,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691943071] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:13,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179888453] [2021-10-13 01:12:13,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:13,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:13,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:12:13,844 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:12:13,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 01:12:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:14,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:12:14,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:12:15,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1545 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2021-10-13 01:12:15,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179888453] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:15,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:12:15,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 01:12:15,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369893109] [2021-10-13 01:12:15,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:15,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:15,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:15,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:12:15,446 INFO L87 Difference]: Start difference. First operand 3208 states and 3470 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 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 01:12:16,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:16,010 INFO L93 Difference]: Finished difference Result 4100 states and 4429 transitions. [2021-10-13 01:12:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:16,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 624 [2021-10-13 01:12:16,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:16,032 INFO L225 Difference]: With dead ends: 4100 [2021-10-13 01:12:16,032 INFO L226 Difference]: Without dead ends: 4098 [2021-10-13 01:12:16,033 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 25.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:12:16,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-10-13 01:12:16,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3208. [2021-10-13 01:12:16,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0820081072653571) internal successors, (3470), 3207 states have internal predecessors, (3470), 0 states have call successors, (0), 0 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 01:12:16,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3470 transitions. [2021-10-13 01:12:16,134 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3470 transitions. Word has length 624 [2021-10-13 01:12:16,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:16,135 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3470 transitions. [2021-10-13 01:12:16,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 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 01:12:16,135 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3470 transitions. [2021-10-13 01:12:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2021-10-13 01:12:16,142 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:16,142 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2021-10-13 01:12:16,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:12:16,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-13 01:12:16,356 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:16,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:16,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1713531829, now seen corresponding path program 1 times [2021-10-13 01:12:16,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:16,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90403203] [2021-10-13 01:12:16,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:16,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 857 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:12:16,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:16,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90403203] [2021-10-13 01:12:16,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90403203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:16,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057515979] [2021-10-13 01:12:16,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:16,673 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:16,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:12:16,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:12:16,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 01:12:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:17,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 01:12:17,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:12:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 857 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:12:18,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057515979] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:18,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:12:18,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-13 01:12:18,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261767964] [2021-10-13 01:12:18,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:12:18,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:18,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:12:18,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:12:18,805 INFO L87 Difference]: Start difference. First operand 3208 states and 3470 transitions. Second operand has 4 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 0 states have call successors, (0), 0 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 01:12:19,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:19,616 INFO L93 Difference]: Finished difference Result 7126 states and 7758 transitions. [2021-10-13 01:12:19,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:12:19,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 0 states have call successors, (0), 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 634 [2021-10-13 01:12:19,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:19,640 INFO L225 Difference]: With dead ends: 7126 [2021-10-13 01:12:19,640 INFO L226 Difference]: Without dead ends: 4098 [2021-10-13 01:12:19,644 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 635 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:12:19,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-10-13 01:12:19,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2021-10-13 01:12:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.0811431487624394) internal successors, (4237), 3919 states have internal predecessors, (4237), 0 states have call successors, (0), 0 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 01:12:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4237 transitions. [2021-10-13 01:12:19,747 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4237 transitions. Word has length 634 [2021-10-13 01:12:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:19,748 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 4237 transitions. [2021-10-13 01:12:19,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 0 states have call successors, (0), 0 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 01:12:19,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4237 transitions. [2021-10-13 01:12:19,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2021-10-13 01:12:19,756 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:19,756 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 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, 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 01:12:19,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:12:19,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:19,972 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:19,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:19,973 INFO L82 PathProgramCache]: Analyzing trace with hash 223844596, now seen corresponding path program 1 times [2021-10-13 01:12:19,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:19,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994937411] [2021-10-13 01:12:19,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:19,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:20,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1545 backedges. 1111 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2021-10-13 01:12:20,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:20,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994937411] [2021-10-13 01:12:20,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994937411] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:20,339 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:20,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:20,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189074548] [2021-10-13 01:12:20,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:20,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:20,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:20,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:20,344 INFO L87 Difference]: Start difference. First operand 3920 states and 4237 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:12:20,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:20,876 INFO L93 Difference]: Finished difference Result 7838 states and 8487 transitions. [2021-10-13 01:12:20,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:20,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 644 [2021-10-13 01:12:20,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:20,898 INFO L225 Difference]: With dead ends: 7838 [2021-10-13 01:12:20,899 INFO L226 Difference]: Without dead ends: 4098 [2021-10-13 01:12:20,904 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:20,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-10-13 01:12:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2021-10-13 01:12:20,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.078321304464047) internal successors, (4034), 3741 states have internal predecessors, (4034), 0 states have call successors, (0), 0 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 01:12:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4034 transitions. [2021-10-13 01:12:20,986 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4034 transitions. Word has length 644 [2021-10-13 01:12:20,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:20,987 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4034 transitions. [2021-10-13 01:12:20,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:12:20,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4034 transitions. [2021-10-13 01:12:20,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2021-10-13 01:12:20,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:20,996 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2021-10-13 01:12:20,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 01:12:20,996 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:20,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:20,997 INFO L82 PathProgramCache]: Analyzing trace with hash -248319062, now seen corresponding path program 1 times [2021-10-13 01:12:20,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:20,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008770635] [2021-10-13 01:12:20,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:20,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 1003 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2021-10-13 01:12:21,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:21,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008770635] [2021-10-13 01:12:21,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008770635] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:21,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:21,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:21,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728371525] [2021-10-13 01:12:21,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:21,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:21,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:21,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:21,292 INFO L87 Difference]: Start difference. First operand 3742 states and 4034 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 01:12:21,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:21,834 INFO L93 Difference]: Finished difference Result 8906 states and 9668 transitions. [2021-10-13 01:12:21,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:21,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 706 [2021-10-13 01:12:21,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:21,866 INFO L225 Difference]: With dead ends: 8906 [2021-10-13 01:12:21,866 INFO L226 Difference]: Without dead ends: 5344 [2021-10-13 01:12:21,871 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:21,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-10-13 01:12:21,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2021-10-13 01:12:21,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.078025169409487) internal successors, (5568), 5165 states have internal predecessors, (5568), 0 states have call successors, (0), 0 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 01:12:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5568 transitions. [2021-10-13 01:12:21,982 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5568 transitions. Word has length 706 [2021-10-13 01:12:21,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:21,983 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5568 transitions. [2021-10-13 01:12:21,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 01:12:21,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5568 transitions. [2021-10-13 01:12:21,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2021-10-13 01:12:21,991 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:21,992 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2021-10-13 01:12:21,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 01:12:21,992 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:21,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:21,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1255761865, now seen corresponding path program 1 times [2021-10-13 01:12:21,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:21,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062161741] [2021-10-13 01:12:21,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:21,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 1118 proven. 93 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2021-10-13 01:12:22,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:22,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062161741] [2021-10-13 01:12:22,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062161741] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:22,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865499770] [2021-10-13 01:12:22,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:22,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:22,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:12:22,356 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:12:22,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 01:12:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:23,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 01:12:23,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:12:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 1211 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2021-10-13 01:12:25,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865499770] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:25,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:12:25,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 01:12:25,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041829809] [2021-10-13 01:12:25,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:25,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:25,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:25,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:12:25,360 INFO L87 Difference]: Start difference. First operand 5166 states and 5568 transitions. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 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 01:12:25,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:25,892 INFO L93 Difference]: Finished difference Result 10508 states and 11329 transitions. [2021-10-13 01:12:25,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:25,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 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 724 [2021-10-13 01:12:25,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:25,903 INFO L225 Difference]: With dead ends: 10508 [2021-10-13 01:12:25,903 INFO L226 Difference]: Without dead ends: 5522 [2021-10-13 01:12:25,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:12:25,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2021-10-13 01:12:25,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344. [2021-10-13 01:12:26,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0776717200074863) internal successors, (5758), 5343 states have internal predecessors, (5758), 0 states have call successors, (0), 0 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 01:12:26,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5758 transitions. [2021-10-13 01:12:26,013 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5758 transitions. Word has length 724 [2021-10-13 01:12:26,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:26,014 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 5758 transitions. [2021-10-13 01:12:26,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 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 01:12:26,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5758 transitions. [2021-10-13 01:12:26,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2021-10-13 01:12:26,025 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:26,025 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:12:26,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:12:26,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-13 01:12:26,248 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:26,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:26,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1244517444, now seen corresponding path program 1 times [2021-10-13 01:12:26,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:26,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114520460] [2021-10-13 01:12:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:26,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:26,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1716 backedges. 1036 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2021-10-13 01:12:26,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:26,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114520460] [2021-10-13 01:12:26,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114520460] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:26,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:26,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:26,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583770594] [2021-10-13 01:12:26,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:26,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:26,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:26,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:26,561 INFO L87 Difference]: Start difference. First operand 5344 states and 5758 transitions. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 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 01:12:27,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:27,079 INFO L93 Difference]: Finished difference Result 10864 states and 11731 transitions. [2021-10-13 01:12:27,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:27,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 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 751 [2021-10-13 01:12:27,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:27,091 INFO L225 Difference]: With dead ends: 10864 [2021-10-13 01:12:27,091 INFO L226 Difference]: Without dead ends: 5700 [2021-10-13 01:12:27,167 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:27,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-10-13 01:12:27,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2021-10-13 01:12:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0700122828566414) internal successors, (6098), 5699 states have internal predecessors, (6098), 0 states have call successors, (0), 0 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 01:12:27,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6098 transitions. [2021-10-13 01:12:27,258 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6098 transitions. Word has length 751 [2021-10-13 01:12:27,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:27,259 INFO L470 AbstractCegarLoop]: Abstraction has 5700 states and 6098 transitions. [2021-10-13 01:12:27,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 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 01:12:27,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6098 transitions. [2021-10-13 01:12:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2021-10-13 01:12:27,269 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:27,269 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 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] [2021-10-13 01:12:27,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 01:12:27,270 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:27,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:27,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1327784350, now seen corresponding path program 1 times [2021-10-13 01:12:27,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:27,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398181343] [2021-10-13 01:12:27,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:27,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2182 backedges. 1166 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-10-13 01:12:27,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:27,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398181343] [2021-10-13 01:12:27,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398181343] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:27,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688550251] [2021-10-13 01:12:27,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:27,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:27,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:12:27,703 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:12:27,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 01:12:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:28,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:12:28,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:12:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2182 backedges. 879 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2021-10-13 01:12:30,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688550251] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:30,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:12:30,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2021-10-13 01:12:30,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662732507] [2021-10-13 01:12:30,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:12:30,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:30,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:12:30,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:12:30,687 INFO L87 Difference]: Start difference. First operand 5700 states and 6098 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 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 01:12:31,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:31,782 INFO L93 Difference]: Finished difference Result 12822 states and 13738 transitions. [2021-10-13 01:12:31,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:12:31,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 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 801 [2021-10-13 01:12:31,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:31,799 INFO L225 Difference]: With dead ends: 12822 [2021-10-13 01:12:31,799 INFO L226 Difference]: Without dead ends: 7302 [2021-10-13 01:12:31,806 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 800 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:12:31,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2021-10-13 01:12:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 6946. [2021-10-13 01:12:31,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6946 states, 6945 states have (on average 1.0701223902087833) internal successors, (7432), 6945 states have internal predecessors, (7432), 0 states have call successors, (0), 0 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 01:12:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6946 states to 6946 states and 7432 transitions. [2021-10-13 01:12:31,921 INFO L78 Accepts]: Start accepts. Automaton has 6946 states and 7432 transitions. Word has length 801 [2021-10-13 01:12:31,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:31,922 INFO L470 AbstractCegarLoop]: Abstraction has 6946 states and 7432 transitions. [2021-10-13 01:12:31,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 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 01:12:31,923 INFO L276 IsEmpty]: Start isEmpty. Operand 6946 states and 7432 transitions. [2021-10-13 01:12:31,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2021-10-13 01:12:31,934 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:31,935 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 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, 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 01:12:31,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:12:32,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-13 01:12:32,150 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:32,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:32,151 INFO L82 PathProgramCache]: Analyzing trace with hash 776024818, now seen corresponding path program 1 times [2021-10-13 01:12:32,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:32,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350415328] [2021-10-13 01:12:32,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:32,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:32,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 797 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2021-10-13 01:12:32,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:32,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350415328] [2021-10-13 01:12:32,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350415328] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:32,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:32,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:32,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005069949] [2021-10-13 01:12:32,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:32,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:32,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:32,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:32,529 INFO L87 Difference]: Start difference. First operand 6946 states and 7432 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 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 01:12:33,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:33,120 INFO L93 Difference]: Finished difference Result 14068 states and 15043 transitions. [2021-10-13 01:12:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:33,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 803 [2021-10-13 01:12:33,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:33,139 INFO L225 Difference]: With dead ends: 14068 [2021-10-13 01:12:33,139 INFO L226 Difference]: Without dead ends: 7302 [2021-10-13 01:12:33,147 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:33,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2021-10-13 01:12:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 6590. [2021-10-13 01:12:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0628319927151313) internal successors, (7003), 6589 states have internal predecessors, (7003), 0 states have call successors, (0), 0 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 01:12:33,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 7003 transitions. [2021-10-13 01:12:33,264 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 7003 transitions. Word has length 803 [2021-10-13 01:12:33,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:33,265 INFO L470 AbstractCegarLoop]: Abstraction has 6590 states and 7003 transitions. [2021-10-13 01:12:33,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 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 01:12:33,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 7003 transitions. [2021-10-13 01:12:33,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2021-10-13 01:12:33,275 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:33,277 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:33,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 01:12:33,277 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:33,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:33,278 INFO L82 PathProgramCache]: Analyzing trace with hash 580335584, now seen corresponding path program 1 times [2021-10-13 01:12:33,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:33,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675851650] [2021-10-13 01:12:33,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:33,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:33,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2218 backedges. 1202 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-10-13 01:12:33,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:33,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675851650] [2021-10-13 01:12:33,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675851650] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:33,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856082336] [2021-10-13 01:12:33,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:33,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:33,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:12:33,672 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:12:33,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 01:12:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:34,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:12:34,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:12:36,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2218 backedges. 915 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2021-10-13 01:12:36,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856082336] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:36,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:12:36,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2021-10-13 01:12:36,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994595374] [2021-10-13 01:12:36,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:12:36,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:36,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:12:36,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:12:36,813 INFO L87 Difference]: Start difference. First operand 6590 states and 7003 transitions. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 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 01:12:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:37,565 INFO L93 Difference]: Finished difference Result 13712 states and 14570 transitions. [2021-10-13 01:12:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:12:37,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 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 834 [2021-10-13 01:12:37,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:37,579 INFO L225 Difference]: With dead ends: 13712 [2021-10-13 01:12:37,580 INFO L226 Difference]: Without dead ends: 7302 [2021-10-13 01:12:37,586 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 833 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 15.2ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:12:37,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2021-10-13 01:12:37,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 6590. [2021-10-13 01:12:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0628319927151313) internal successors, (7003), 6589 states have internal predecessors, (7003), 0 states have call successors, (0), 0 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 01:12:37,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 7003 transitions. [2021-10-13 01:12:37,734 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 7003 transitions. Word has length 834 [2021-10-13 01:12:37,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:37,735 INFO L470 AbstractCegarLoop]: Abstraction has 6590 states and 7003 transitions. [2021-10-13 01:12:37,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 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 01:12:37,735 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 7003 transitions. [2021-10-13 01:12:37,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2021-10-13 01:12:37,745 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:37,746 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:37,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:12:37,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-13 01:12:37,964 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:37,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:37,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1968437427, now seen corresponding path program 1 times [2021-10-13 01:12:37,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:37,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990752050] [2021-10-13 01:12:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:37,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:38,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2219 backedges. 1203 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-10-13 01:12:38,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:38,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990752050] [2021-10-13 01:12:38,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990752050] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:38,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796003715] [2021-10-13 01:12:38,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:38,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:38,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:12:38,304 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:12:38,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-13 01:12:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:39,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 01:12:39,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:12:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2219 backedges. 1305 proven. 523 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-10-13 01:12:44,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796003715] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:44,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:12:44,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 7 [2021-10-13 01:12:44,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171217592] [2021-10-13 01:12:44,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 01:12:44,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:44,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:12:44,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:12:44,598 INFO L87 Difference]: Start difference. First operand 6590 states and 7003 transitions. Second operand has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 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 01:12:46,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:46,684 INFO L93 Difference]: Finished difference Result 14782 states and 15686 transitions. [2021-10-13 01:12:46,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 01:12:46,684 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 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 835 [2021-10-13 01:12:46,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:46,702 INFO L225 Difference]: With dead ends: 14782 [2021-10-13 01:12:46,702 INFO L226 Difference]: Without dead ends: 8372 [2021-10-13 01:12:46,709 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 843 GetRequests, 835 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 30.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:12:46,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8372 states. [2021-10-13 01:12:46,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8372 to 7124. [2021-10-13 01:12:46,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7124 states, 7123 states have (on average 1.061912115681595) internal successors, (7564), 7123 states have internal predecessors, (7564), 0 states have call successors, (0), 0 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 01:12:46,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7124 states to 7124 states and 7564 transitions. [2021-10-13 01:12:46,842 INFO L78 Accepts]: Start accepts. Automaton has 7124 states and 7564 transitions. Word has length 835 [2021-10-13 01:12:46,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:46,843 INFO L470 AbstractCegarLoop]: Abstraction has 7124 states and 7564 transitions. [2021-10-13 01:12:46,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 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 01:12:46,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7124 states and 7564 transitions. [2021-10-13 01:12:46,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2021-10-13 01:12:46,852 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:46,854 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 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 01:12:46,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-13 01:12:47,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:47,076 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:47,077 INFO L82 PathProgramCache]: Analyzing trace with hash 219972304, now seen corresponding path program 1 times [2021-10-13 01:12:47,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:47,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37449272] [2021-10-13 01:12:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:47,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2215 backedges. 1228 proven. 0 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2021-10-13 01:12:47,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:47,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37449272] [2021-10-13 01:12:47,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37449272] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:47,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:47,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:12:47,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418540695] [2021-10-13 01:12:47,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:12:47,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:47,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:12:47,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:47,408 INFO L87 Difference]: Start difference. First operand 7124 states and 7564 transitions. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 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 01:12:47,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:47,882 INFO L93 Difference]: Finished difference Result 14246 states and 15132 transitions. [2021-10-13 01:12:47,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:12:47,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 846 [2021-10-13 01:12:47,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:47,893 INFO L225 Difference]: With dead ends: 14246 [2021-10-13 01:12:47,893 INFO L226 Difference]: Without dead ends: 7302 [2021-10-13 01:12:47,899 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:12:47,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2021-10-13 01:12:48,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 7124. [2021-10-13 01:12:48,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7124 states, 7123 states have (on average 1.056436894566896) internal successors, (7525), 7123 states have internal predecessors, (7525), 0 states have call successors, (0), 0 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 01:12:48,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7124 states to 7124 states and 7525 transitions. [2021-10-13 01:12:48,067 INFO L78 Accepts]: Start accepts. Automaton has 7124 states and 7525 transitions. Word has length 846 [2021-10-13 01:12:48,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:48,068 INFO L470 AbstractCegarLoop]: Abstraction has 7124 states and 7525 transitions. [2021-10-13 01:12:48,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 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 01:12:48,068 INFO L276 IsEmpty]: Start isEmpty. Operand 7124 states and 7525 transitions. [2021-10-13 01:12:48,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 871 [2021-10-13 01:12:48,078 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:48,078 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 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] [2021-10-13 01:12:48,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 01:12:48,079 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:48,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:48,079 INFO L82 PathProgramCache]: Analyzing trace with hash 39916617, now seen corresponding path program 1 times [2021-10-13 01:12:48,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:48,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079057106] [2021-10-13 01:12:48,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:48,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:48,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2707 backedges. 825 proven. 0 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2021-10-13 01:12:48,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:48,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079057106] [2021-10-13 01:12:48,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079057106] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:12:48,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:12:48,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 01:12:48,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963482393] [2021-10-13 01:12:48,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 01:12:48,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:48,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:12:48,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:12:48,517 INFO L87 Difference]: Start difference. First operand 7124 states and 7525 transitions. Second operand has 7 states, 7 states have (on average 42.0) internal successors, (294), 6 states have internal predecessors, (294), 0 states have call successors, (0), 0 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 01:12:49,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:12:49,406 INFO L93 Difference]: Finished difference Result 13350 states and 14091 transitions. [2021-10-13 01:12:49,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 01:12:49,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.0) internal successors, (294), 6 states have internal predecessors, (294), 0 states have call successors, (0), 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 870 [2021-10-13 01:12:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:12:49,415 INFO L225 Difference]: With dead ends: 13350 [2021-10-13 01:12:49,415 INFO L226 Difference]: Without dead ends: 6185 [2021-10-13 01:12:49,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.2ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:12:49,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6185 states. [2021-10-13 01:12:49,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6185 to 6099. [2021-10-13 01:12:49,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6099 states, 6098 states have (on average 1.0523122335191866) internal successors, (6417), 6098 states have internal predecessors, (6417), 0 states have call successors, (0), 0 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 01:12:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6099 states to 6099 states and 6417 transitions. [2021-10-13 01:12:49,545 INFO L78 Accepts]: Start accepts. Automaton has 6099 states and 6417 transitions. Word has length 870 [2021-10-13 01:12:49,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:12:49,547 INFO L470 AbstractCegarLoop]: Abstraction has 6099 states and 6417 transitions. [2021-10-13 01:12:49,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.0) internal successors, (294), 6 states have internal predecessors, (294), 0 states have call successors, (0), 0 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 01:12:49,547 INFO L276 IsEmpty]: Start isEmpty. Operand 6099 states and 6417 transitions. [2021-10-13 01:12:49,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 921 [2021-10-13 01:12:49,560 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:12:49,561 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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] [2021-10-13 01:12:49,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-13 01:12:49,561 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:12:49,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:12:49,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1446623235, now seen corresponding path program 1 times [2021-10-13 01:12:49,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:12:49,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885441218] [2021-10-13 01:12:49,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:49,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:12:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 670 proven. 43 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2021-10-13 01:12:50,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:12:50,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885441218] [2021-10-13 01:12:50,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885441218] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:50,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308800992] [2021-10-13 01:12:50,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:12:50,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:12:50,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:12:50,076 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:12:50,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 01:12:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:12:51,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 01:12:51,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:12:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 629 proven. 720 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2021-10-13 01:12:58,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308800992] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:12:58,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:12:58,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2021-10-13 01:12:58,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35209861] [2021-10-13 01:12:58,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 01:12:58,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:12:58,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 01:12:58,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:12:58,062 INFO L87 Difference]: Start difference. First operand 6099 states and 6417 transitions. Second operand has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 0 states have call successors, (0), 0 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 01:13:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:01,378 INFO L93 Difference]: Finished difference Result 14224 states and 14926 transitions. [2021-10-13 01:13:01,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 01:13:01,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 0 states have call successors, (0), 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 920 [2021-10-13 01:13:01,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:01,385 INFO L225 Difference]: With dead ends: 14224 [2021-10-13 01:13:01,385 INFO L226 Difference]: Without dead ends: 8262 [2021-10-13 01:13:01,388 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 922 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 140.3ms TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-10-13 01:13:01,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8262 states. [2021-10-13 01:13:01,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8262 to 6277. [2021-10-13 01:13:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6277 states, 6276 states have (on average 1.0501912045889101) internal successors, (6591), 6276 states have internal predecessors, (6591), 0 states have call successors, (0), 0 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 01:13:01,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6277 states to 6277 states and 6591 transitions. [2021-10-13 01:13:01,492 INFO L78 Accepts]: Start accepts. Automaton has 6277 states and 6591 transitions. Word has length 920 [2021-10-13 01:13:01,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:01,493 INFO L470 AbstractCegarLoop]: Abstraction has 6277 states and 6591 transitions. [2021-10-13 01:13:01,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 0 states have call successors, (0), 0 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 01:13:01,494 INFO L276 IsEmpty]: Start isEmpty. Operand 6277 states and 6591 transitions. [2021-10-13 01:13:01,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2021-10-13 01:13:01,507 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:01,508 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 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] [2021-10-13 01:13:01,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-13 01:13:01,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:01,736 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:01,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:01,737 INFO L82 PathProgramCache]: Analyzing trace with hash 959953204, now seen corresponding path program 1 times [2021-10-13 01:13:01,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:01,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607591964] [2021-10-13 01:13:01,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:01,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:02,171 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 782 proven. 43 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2021-10-13 01:13:02,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:02,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607591964] [2021-10-13 01:13:02,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607591964] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:13:02,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465923714] [2021-10-13 01:13:02,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:02,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:02,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:13:02,173 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:13:02,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 01:13:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:04,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1296 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 01:13:04,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:13:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 825 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2021-10-13 01:13:07,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465923714] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:13:07,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:13:07,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-13 01:13:07,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808876604] [2021-10-13 01:13:07,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:13:07,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:07,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:13:07,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:13:07,676 INFO L87 Difference]: Start difference. First operand 6277 states and 6591 transitions. Second operand has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 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 01:13:08,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:08,955 INFO L93 Difference]: Finished difference Result 12595 states and 13223 transitions. [2021-10-13 01:13:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:13:08,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 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 1049 [2021-10-13 01:13:08,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:08,960 INFO L225 Difference]: With dead ends: 12595 [2021-10-13 01:13:08,960 INFO L226 Difference]: Without dead ends: 6455 [2021-10-13 01:13:08,963 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1056 GetRequests, 1050 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.3ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:13:08,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6455 states. [2021-10-13 01:13:09,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6455 to 5921. [2021-10-13 01:13:09,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5921 states, 5920 states have (on average 1.0488175675675675) internal successors, (6209), 5920 states have internal predecessors, (6209), 0 states have call successors, (0), 0 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 01:13:09,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5921 states to 5921 states and 6209 transitions. [2021-10-13 01:13:09,050 INFO L78 Accepts]: Start accepts. Automaton has 5921 states and 6209 transitions. Word has length 1049 [2021-10-13 01:13:09,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:09,051 INFO L470 AbstractCegarLoop]: Abstraction has 5921 states and 6209 transitions. [2021-10-13 01:13:09,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 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 01:13:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5921 states and 6209 transitions. [2021-10-13 01:13:09,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1394 [2021-10-13 01:13:09,071 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:09,072 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:09,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 01:13:09,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-13 01:13:09,292 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:09,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:09,293 INFO L82 PathProgramCache]: Analyzing trace with hash 960342611, now seen corresponding path program 1 times [2021-10-13 01:13:09,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:09,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134094158] [2021-10-13 01:13:09,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:09,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:09,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5988 backedges. 1412 proven. 0 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-10-13 01:13:09,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:09,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134094158] [2021-10-13 01:13:09,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134094158] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:09,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:09,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:13:09,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649644652] [2021-10-13 01:13:09,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:13:09,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:09,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:13:09,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:13:09,962 INFO L87 Difference]: Start difference. First operand 5921 states and 6209 transitions. Second operand has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 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 01:13:10,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:10,857 INFO L93 Difference]: Finished difference Result 5966 states and 6253 transitions. [2021-10-13 01:13:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:13:10,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 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 1393 [2021-10-13 01:13:10,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:10,862 INFO L225 Difference]: With dead ends: 5966 [2021-10-13 01:13:10,862 INFO L226 Difference]: Without dead ends: 5921 [2021-10-13 01:13:10,864 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:13:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2021-10-13 01:13:10,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5921. [2021-10-13 01:13:10,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5921 states, 5920 states have (on average 1.0483108108108108) internal successors, (6206), 5920 states have internal predecessors, (6206), 0 states have call successors, (0), 0 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 01:13:10,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5921 states to 5921 states and 6206 transitions. [2021-10-13 01:13:10,950 INFO L78 Accepts]: Start accepts. Automaton has 5921 states and 6206 transitions. Word has length 1393 [2021-10-13 01:13:10,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:10,952 INFO L470 AbstractCegarLoop]: Abstraction has 5921 states and 6206 transitions. [2021-10-13 01:13:10,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 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 01:13:10,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5921 states and 6206 transitions. [2021-10-13 01:13:10,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1512 [2021-10-13 01:13:10,978 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:10,979 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 6, 6, 6, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:10,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-13 01:13:10,980 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:10,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:10,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1140105243, now seen corresponding path program 1 times [2021-10-13 01:13:10,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:10,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841606854] [2021-10-13 01:13:10,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:10,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 7218 backedges. 822 proven. 819 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2021-10-13 01:13:11,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:11,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841606854] [2021-10-13 01:13:11,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841606854] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:13:11,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23416878] [2021-10-13 01:13:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:11,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:11,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:13:11,881 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:13:11,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-13 01:13:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:14,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:13:14,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:13:17,928 INFO L134 CoverageAnalysis]: Checked inductivity of 7218 backedges. 1641 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2021-10-13 01:13:17,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23416878] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:17,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:13:17,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 01:13:17,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811684899] [2021-10-13 01:13:17,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:17,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:17,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:17,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:13:17,932 INFO L87 Difference]: Start difference. First operand 5921 states and 6206 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 01:13:18,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:18,372 INFO L93 Difference]: Finished difference Result 13264 states and 13852 transitions. [2021-10-13 01:13:18,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:18,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 1511 [2021-10-13 01:13:18,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:18,377 INFO L225 Difference]: With dead ends: 13264 [2021-10-13 01:13:18,377 INFO L226 Difference]: Without dead ends: 4319 [2021-10-13 01:13:18,380 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1514 GetRequests, 1510 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 13.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:13:18,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4319 states. [2021-10-13 01:13:18,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4319 to 3963. [2021-10-13 01:13:18,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3963 states, 3962 states have (on average 1.0310449268046442) internal successors, (4085), 3962 states have internal predecessors, (4085), 0 states have call successors, (0), 0 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 01:13:18,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3963 states to 3963 states and 4085 transitions. [2021-10-13 01:13:18,430 INFO L78 Accepts]: Start accepts. Automaton has 3963 states and 4085 transitions. Word has length 1511 [2021-10-13 01:13:18,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:18,432 INFO L470 AbstractCegarLoop]: Abstraction has 3963 states and 4085 transitions. [2021-10-13 01:13:18,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 01:13:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3963 states and 4085 transitions. [2021-10-13 01:13:18,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1833 [2021-10-13 01:13:18,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:18,469 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 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 01:13:18,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-13 01:13:18,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-13 01:13:18,696 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:18,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:18,697 INFO L82 PathProgramCache]: Analyzing trace with hash -382520307, now seen corresponding path program 1 times [2021-10-13 01:13:18,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:18,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71372292] [2021-10-13 01:13:18,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:18,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 11114 backedges. 6881 proven. 89 refuted. 0 times theorem prover too weak. 4144 trivial. 0 not checked. [2021-10-13 01:13:19,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:19,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71372292] [2021-10-13 01:13:19,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71372292] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:13:19,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433941970] [2021-10-13 01:13:19,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:19,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:19,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:13:19,692 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:13:19,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 01:13:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:22,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 2241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:13:22,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:13:26,763 INFO L134 CoverageAnalysis]: Checked inductivity of 11114 backedges. 6236 proven. 0 refuted. 0 times theorem prover too weak. 4878 trivial. 0 not checked. [2021-10-13 01:13:26,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433941970] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:26,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:13:26,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 01:13:26,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662529955] [2021-10-13 01:13:26,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:26,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:26,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:26,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:13:26,767 INFO L87 Difference]: Start difference. First operand 3963 states and 4085 transitions. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 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 01:13:27,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:27,158 INFO L93 Difference]: Finished difference Result 7390 states and 7617 transitions. [2021-10-13 01:13:27,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:27,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 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 1832 [2021-10-13 01:13:27,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:27,163 INFO L225 Difference]: With dead ends: 7390 [2021-10-13 01:13:27,163 INFO L226 Difference]: Without dead ends: 3785 [2021-10-13 01:13:27,165 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1836 GetRequests, 1831 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 19.3ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:13:27,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3785 states. [2021-10-13 01:13:27,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3785 to 3785. [2021-10-13 01:13:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3785 states, 3784 states have (on average 1.0182346723044398) internal successors, (3853), 3784 states have internal predecessors, (3853), 0 states have call successors, (0), 0 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 01:13:27,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3785 states to 3785 states and 3853 transitions. [2021-10-13 01:13:27,214 INFO L78 Accepts]: Start accepts. Automaton has 3785 states and 3853 transitions. Word has length 1832 [2021-10-13 01:13:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:27,215 INFO L470 AbstractCegarLoop]: Abstraction has 3785 states and 3853 transitions. [2021-10-13 01:13:27,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 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 01:13:27,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3785 states and 3853 transitions. [2021-10-13 01:13:27,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1893 [2021-10-13 01:13:27,248 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:27,249 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 3, 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 01:13:27,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 01:13:27,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:27,464 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:27,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:27,465 INFO L82 PathProgramCache]: Analyzing trace with hash -373930403, now seen corresponding path program 1 times [2021-10-13 01:13:27,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:27,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740244761] [2021-10-13 01:13:27,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:27,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:28,387 INFO L134 CoverageAnalysis]: Checked inductivity of 11284 backedges. 6811 proven. 0 refuted. 0 times theorem prover too weak. 4473 trivial. 0 not checked. [2021-10-13 01:13:28,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:28,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740244761] [2021-10-13 01:13:28,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740244761] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:28,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:28,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:13:28,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449024317] [2021-10-13 01:13:28,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:13:28,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:28,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:13:28,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:13:28,392 INFO L87 Difference]: Start difference. First operand 3785 states and 3853 transitions. Second operand has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 01:13:29,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:29,122 INFO L93 Difference]: Finished difference Result 6989 states and 7123 transitions. [2021-10-13 01:13:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:13:29,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 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 1892 [2021-10-13 01:13:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:29,123 INFO L225 Difference]: With dead ends: 6989 [2021-10-13 01:13:29,123 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 01:13:29,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:13:29,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 01:13:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 01:13:29,125 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 01:13:29,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:13:29,125 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1892 [2021-10-13 01:13:29,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:29,126 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:13:29,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 01:13:29,126 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:13:29,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 01:13:29,128 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:13:29,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-13 01:13:29,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 01:13:29,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:13:29,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:13:29,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:13:32,178 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-13 01:13:32,178 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-13 01:13:32,178 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-13 01:13:32,178 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-13 01:13:32,178 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-13 01:13:32,178 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,178 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,179 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,179 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-13 01:13:32,179 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-13 01:13:32,179 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 01:13:32,179 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 01:13:32,179 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 01:13:32,180 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-13 01:13:32,180 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-13 01:13:32,180 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-13 01:13:32,180 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,180 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,180 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,180 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-13 01:13:32,181 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 01:13:32,181 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 01:13:32,181 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 01:13:32,181 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-13 01:13:32,181 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-13 01:13:32,181 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-13 01:13:32,181 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-13 01:13:32,182 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-13 01:13:32,182 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,182 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,182 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,182 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-13 01:13:32,182 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 01:13:32,182 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 01:13:32,183 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 01:13:32,183 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-13 01:13:32,183 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-13 01:13:32,183 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-13 01:13:32,183 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,183 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,183 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,184 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-13 01:13:32,184 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 01:13:32,184 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 01:13:32,184 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 01:13:32,184 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-13 01:13:32,184 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-13 01:13:32,184 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-13 01:13:32,185 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-13 01:13:32,185 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,185 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,185 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,185 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-13 01:13:32,185 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-13 01:13:32,185 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 01:13:32,186 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 01:13:32,186 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 01:13:32,186 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-13 01:13:32,186 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-13 01:13:32,186 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-13 01:13:32,186 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,187 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,187 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,187 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-13 01:13:32,187 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 01:13:32,187 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 01:13:32,187 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 01:13:32,187 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-13 01:13:32,188 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-13 01:13:32,188 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-13 01:13:32,188 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-13 01:13:32,188 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-13 01:13:32,188 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,188 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,188 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,189 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-13 01:13:32,189 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 01:13:32,189 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 01:13:32,189 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 01:13:32,189 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-13 01:13:32,189 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-13 01:13:32,189 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-13 01:13:32,190 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 01:13:32,190 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,190 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,190 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,190 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-13 01:13:32,190 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 01:13:32,191 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 01:13:32,191 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 01:13:32,191 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-13 01:13:32,191 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-13 01:13:32,191 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-13 01:13:32,191 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-13 01:13:32,191 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-13 01:13:32,192 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,192 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,192 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,192 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-13 01:13:32,192 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 01:13:32,192 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 01:13:32,192 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 01:13:32,193 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-13 01:13:32,193 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-13 01:13:32,193 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-13 01:13:32,193 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-13 01:13:32,193 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,193 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,193 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,194 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 01:13:32,194 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 01:13:32,194 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 01:13:32,194 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 01:13:32,194 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-13 01:13:32,194 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 149) no Hoare annotation was computed. [2021-10-13 01:13:32,194 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-13 01:13:32,195 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-13 01:13:32,195 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-13 01:13:32,195 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-13 01:13:32,195 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,195 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,195 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,195 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-13 01:13:32,196 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-13 01:13:32,196 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 01:13:32,196 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 01:13:32,196 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 01:13:32,196 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-13 01:13:32,196 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-13 01:13:32,196 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-13 01:13:32,197 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,197 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,197 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,197 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 01:13:32,197 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 01:13:32,197 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 01:13:32,197 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-13 01:13:32,198 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-13 01:13:32,198 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-13 01:13:32,198 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-13 01:13:32,198 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-13 01:13:32,198 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,198 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,198 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,199 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-13 01:13:32,199 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-13 01:13:32,199 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 01:13:32,199 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 01:13:32,199 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 01:13:32,199 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-13 01:13:32,199 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-13 01:13:32,200 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-13 01:13:32,200 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,200 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,200 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,200 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-13 01:13:32,200 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 01:13:32,200 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 01:13:32,201 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 01:13:32,201 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-13 01:13:32,201 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-13 01:13:32,201 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-13 01:13:32,201 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-13 01:13:32,201 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,201 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,202 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,202 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-13 01:13:32,202 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 01:13:32,202 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 01:13:32,202 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 01:13:32,202 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-13 01:13:32,202 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-13 01:13:32,203 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-13 01:13:32,203 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-13 01:13:32,203 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,203 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,203 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-13 01:13:32,203 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 01:13:32,203 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 01:13:32,204 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-13 01:13:32,204 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-13 01:13:32,204 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-13 01:13:32,204 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-13 01:13:32,204 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-13 01:13:32,204 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,204 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,205 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-13 01:13:32,205 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 01:13:32,205 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 01:13:32,205 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 01:13:32,205 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-13 01:13:32,205 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-13 01:13:32,205 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-13 01:13:32,206 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,206 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,206 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse1 (= ~a24~0 1)) (.cse2 (<= ~a15~0 8))) (let ((.cse12 (or (and .cse1 .cse2 (not (= ~a21~0 6))) (and .cse2 (<= 8 ~a15~0))))) (let ((.cse7 (<= ~a21~0 6)) (.cse0 (<= 9 ~a21~0)) (.cse6 (let ((.cse20 (<= ~a21~0 9))) (or (and (<= 6 ~a15~0) .cse20 .cse2) (and .cse20 .cse12)))) (.cse13 (<= ~a12~0 75)) (.cse14 (< 0 (+ ~a12~0 43))) (.cse5 (<= 10 ~a21~0)) (.cse4 (<= ~a12~0 11)) (.cse11 (<= ~a15~0 7)) (.cse18 (= 5 ~a15~0)) (.cse3 (<= (+ 49 ~a12~0) 0)) (.cse19 (<= 9 ~a15~0)) (.cse15 (<= 8 ~a21~0)) (.cse16 (<= ~a21~0 8)) (.cse8 (<= 0 (+ ~a12~0 42))) (.cse17 (= ~a15~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse5) (and .cse6 .cse1 .cse7 .cse8) (and (exists ((v_~a12~0_443 Int)) (and (< 80 v_~a12~0_443) (<= v_~a12~0_443 73281) (let ((.cse10 (div (* v_~a12~0_443 9) 10))) (let ((.cse9 (div (+ (- 562768) .cse10) 5))) (or (<= ~a12~0 .cse9) (and (<= ~a12~0 (+ .cse9 1)) (not (= (mod (+ 2 .cse10) 5) 0)))))))) .cse7 .cse11) (and .cse11 .cse12) (and .cse0 .cse6 .cse1 .cse13 .cse14) (and .cse1 .cse13 .cse15 .cse16 .cse14) (and .cse1 (<= ~a12~0 599997) .cse5 .cse17) (and .cse4 .cse1 .cse18) (and .cse1 .cse19 (<= 81 ~a12~0)) (and .cse4 .cse1 .cse2 .cse8) (and .cse1 .cse2 .cse11 .cse3) (and .cse1 .cse18 (<= 526013 ~a12~0)) (and .cse1 (<= 7 ~a21~0) (<= ~a21~0 7) .cse3 .cse17) (and .cse1 .cse19 .cse15 .cse16 (<= (+ 492393 ~a12~0) 0)) (and (<= ~a12~0 73282) .cse1 .cse15 .cse16 .cse8 .cse17))))) [2021-10-13 01:13:32,206 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-13 01:13:32,207 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-13 01:13:32,207 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 01:13:32,207 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 01:13:32,207 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-13 01:13:32,207 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-13 01:13:32,207 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-13 01:13:32,207 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-13 01:13:32,207 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,207 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,207 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-13 01:13:32,208 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-13 01:13:32,208 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-13 01:13:32,208 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 01:13:32,208 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 01:13:32,208 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-13 01:13:32,208 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-13 01:13:32,208 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-13 01:13:32,209 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,209 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,209 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 01:13:32,209 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-13 01:13:32,209 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-13 01:13:32,209 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 01:13:32,209 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 01:13:32,210 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-13 01:13:32,210 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-13 01:13:32,210 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,210 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,210 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 01:13:32,210 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,210 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-13 01:13:32,211 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse1 (= ~a24~0 1)) (.cse2 (<= ~a15~0 8))) (let ((.cse12 (or (and .cse1 .cse2 (not (= ~a21~0 6))) (and .cse2 (<= 8 ~a15~0))))) (let ((.cse7 (<= ~a21~0 6)) (.cse0 (<= 9 ~a21~0)) (.cse6 (let ((.cse20 (<= ~a21~0 9))) (or (and (<= 6 ~a15~0) .cse20 .cse2) (and .cse20 .cse12)))) (.cse13 (<= ~a12~0 75)) (.cse14 (< 0 (+ ~a12~0 43))) (.cse5 (<= 10 ~a21~0)) (.cse4 (<= ~a12~0 11)) (.cse11 (<= ~a15~0 7)) (.cse18 (= 5 ~a15~0)) (.cse3 (<= (+ 49 ~a12~0) 0)) (.cse19 (<= 9 ~a15~0)) (.cse15 (<= 8 ~a21~0)) (.cse16 (<= ~a21~0 8)) (.cse8 (<= 0 (+ ~a12~0 42))) (.cse17 (= ~a15~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse5) (and .cse6 .cse1 .cse7 .cse8) (and (exists ((v_~a12~0_443 Int)) (and (< 80 v_~a12~0_443) (<= v_~a12~0_443 73281) (let ((.cse10 (div (* v_~a12~0_443 9) 10))) (let ((.cse9 (div (+ (- 562768) .cse10) 5))) (or (<= ~a12~0 .cse9) (and (<= ~a12~0 (+ .cse9 1)) (not (= (mod (+ 2 .cse10) 5) 0)))))))) .cse7 .cse11) (and .cse11 .cse12) (and .cse0 .cse6 .cse1 .cse13 .cse14) (and .cse1 .cse13 .cse15 .cse16 .cse14) (and .cse1 (<= ~a12~0 599997) .cse5 .cse17) (and .cse4 .cse1 .cse18) (and .cse1 .cse19 (<= 81 ~a12~0)) (and .cse4 .cse1 .cse2 .cse8) (and .cse1 .cse2 .cse11 .cse3) (and .cse1 .cse18 (<= 526013 ~a12~0)) (and .cse1 (<= 7 ~a21~0) (<= ~a21~0 7) .cse3 .cse17) (and .cse1 .cse19 .cse15 .cse16 (<= (+ 492393 ~a12~0) 0)) (and (<= ~a12~0 73282) .cse1 .cse15 .cse16 .cse8 .cse17))))) [2021-10-13 01:13:32,211 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-13 01:13:32,211 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-13 01:13:32,211 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 01:13:32,211 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 01:13:32,212 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 01:13:32,212 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-13 01:13:32,212 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-13 01:13:32,212 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-13 01:13:32,212 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-13 01:13:32,212 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,213 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,213 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:13:32,213 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-13 01:13:32,213 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 01:13:32,213 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 01:13:32,213 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 01:13:32,218 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:13:32,227 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,240 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,240 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,241 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,241 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,241 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,246 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,246 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,246 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,246 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,251 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,251 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:13:32 BoogieIcfgContainer [2021-10-13 01:13:32,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:13:32,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:13:32,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:13:32,255 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:13:32,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:12:00" (3/4) ... [2021-10-13 01:13:32,258 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 01:13:32,286 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 01:13:32,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 01:13:32,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:13:32,292 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:13:32,322 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((9 <= a21 && a24 == 1) && a15 <= 8) && 49 + a12 <= 0) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || ((((((6 <= a15 && a21 <= 9) && a15 <= 8) || (a21 <= 9 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15)))) && a24 == 1) && a21 <= 6) && 0 <= a12 + 42)) || (((\exists v_~a12~0_443 : int :: (80 < v_~a12~0_443 && v_~a12~0_443 <= 73281) && (a12 <= (-562768 + v_~a12~0_443 * 9 / 10) / 5 || (a12 <= (-562768 + v_~a12~0_443 * 9 / 10) / 5 + 1 && !((2 + v_~a12~0_443 * 9 / 10) % 5 == 0)))) && a21 <= 6) && a15 <= 7)) || (a15 <= 7 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15)))) || ((((9 <= a21 && (((6 <= a15 && a21 <= 9) && a15 <= 8) || (a21 <= 9 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15))))) && a24 == 1) && a12 <= 75) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 75) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((a24 == 1 && a12 <= 599997) && 10 <= a21) && a15 == 8)) || ((a12 <= 11 && a24 == 1) && 5 == a15)) || ((a24 == 1 && 9 <= a15) && 81 <= a12)) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && 0 <= a12 + 42)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 49 + a12 <= 0)) || ((a24 == 1 && 5 == a15) && 526013 <= a12)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && 492393 + a12 <= 0)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8) [2021-10-13 01:13:32,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((9 <= a21 && a24 == 1) && a15 <= 8) && 49 + a12 <= 0) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || ((((((6 <= a15 && a21 <= 9) && a15 <= 8) || (a21 <= 9 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15)))) && a24 == 1) && a21 <= 6) && 0 <= a12 + 42)) || (((\exists v_~a12~0_443 : int :: (80 < v_~a12~0_443 && v_~a12~0_443 <= 73281) && (a12 <= (-562768 + v_~a12~0_443 * 9 / 10) / 5 || (a12 <= (-562768 + v_~a12~0_443 * 9 / 10) / 5 + 1 && !((2 + v_~a12~0_443 * 9 / 10) % 5 == 0)))) && a21 <= 6) && a15 <= 7)) || (a15 <= 7 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15)))) || ((((9 <= a21 && (((6 <= a15 && a21 <= 9) && a15 <= 8) || (a21 <= 9 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15))))) && a24 == 1) && a12 <= 75) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 75) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((a24 == 1 && a12 <= 599997) && 10 <= a21) && a15 == 8)) || ((a12 <= 11 && a24 == 1) && 5 == a15)) || ((a24 == 1 && 9 <= a15) && 81 <= a12)) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && 0 <= a12 + 42)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 49 + a12 <= 0)) || ((a24 == 1 && 5 == a15) && 526013 <= a12)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && 492393 + a12 <= 0)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8) [2021-10-13 01:13:32,427 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:13:32,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:13:32,429 INFO L168 Benchmark]: Toolchain (without parser) took 94933.87 ms. Allocated memory was 96.5 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 74.5 MB in the beginning and 414.5 MB in the end (delta: -340.0 MB). Peak memory consumption was 853.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:32,429 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 59.9 MB in the beginning and 59.8 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:13:32,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.87 ms. Allocated memory is still 96.5 MB. Free memory was 74.2 MB in the beginning and 49.3 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:32,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 184.12 ms. Allocated memory is still 96.5 MB. Free memory was 49.3 MB in the beginning and 67.9 MB in the end (delta: -18.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:32,430 INFO L168 Benchmark]: Boogie Preprocessor took 121.84 ms. Allocated memory is still 96.5 MB. Free memory was 67.9 MB in the beginning and 62.4 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:32,431 INFO L168 Benchmark]: RCFGBuilder took 1608.80 ms. Allocated memory was 96.5 MB in the beginning and 144.7 MB in the end (delta: 48.2 MB). Free memory was 62.1 MB in the beginning and 100.0 MB in the end (delta: -38.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:32,431 INFO L168 Benchmark]: TraceAbstraction took 92025.51 ms. Allocated memory was 144.7 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 99.6 MB in the beginning and 433.4 MB in the end (delta: -333.7 MB). Peak memory consumption was 812.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:32,432 INFO L168 Benchmark]: Witness Printer took 172.92 ms. Allocated memory is still 1.3 GB. Free memory was 433.4 MB in the beginning and 414.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:32,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 59.9 MB in the beginning and 59.8 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 813.87 ms. Allocated memory is still 96.5 MB. Free memory was 74.2 MB in the beginning and 49.3 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 184.12 ms. Allocated memory is still 96.5 MB. Free memory was 49.3 MB in the beginning and 67.9 MB in the end (delta: -18.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 121.84 ms. Allocated memory is still 96.5 MB. Free memory was 67.9 MB in the beginning and 62.4 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1608.80 ms. Allocated memory was 96.5 MB in the beginning and 144.7 MB in the end (delta: 48.2 MB). Free memory was 62.1 MB in the beginning and 100.0 MB in the end (delta: -38.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 92025.51 ms. Allocated memory was 144.7 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 99.6 MB in the beginning and 433.4 MB in the end (delta: -333.7 MB). Peak memory consumption was 812.4 MB. Max. memory is 16.1 GB. * Witness Printer took 172.92 ms. Allocated memory is still 1.3 GB. Free memory was 433.4 MB in the beginning and 414.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] * 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: 149]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 91921.9ms, OverallIterations: 27, TraceHistogramMax: 16, EmptinessCheckTime: 323.1ms, AutomataDifference: 23999.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3048.5ms, InitialAbstractionConstructionTime: 20.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2842 SDtfs, 4176 SDslu, 315 SDs, 0 SdLazy, 24215 SolverSat, 1850 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17570.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10518 GetRequests, 10426 SyntacticMatches, 5 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 475.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7124occurred in iteration=19, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2254.7ms AutomataMinimizationTime, 27 MinimizatonAttempts, 9905 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 102 NumberOfFragments, 691 HoareAnnotationTreeSize, 3 FomulaSimplifications, 48710 FormulaSimplificationTreeSizeReduction, 661.3ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 18402 FormulaSimplificationTreeSizeReductionInter, 2378.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1064.3ms SsaConstructionTime, 3690.3ms SatisfiabilityAnalysisTime, 39925.4ms InterpolantComputationTime, 30788 NumberOfCodeBlocks, 30788 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 30749 ConstructedInterpolants, 43 QuantifiedInterpolants, 90611 SizeOfPredicates, 4 NumberOfNonLiveVariables, 13143 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 39 InterpolantComputations, 23 PerfectInterpolantSequences, 99525/103427 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: 30]: Loop Invariant [2021-10-13 01:13:32,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,446 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] Derived loop invariant: (((((((((((((((((9 <= a21 && a24 == 1) && a15 <= 8) && 49 + a12 <= 0) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || ((((((6 <= a15 && a21 <= 9) && a15 <= 8) || (a21 <= 9 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15)))) && a24 == 1) && a21 <= 6) && 0 <= a12 + 42)) || (((\exists v_~a12~0_443 : int :: (80 < v_~a12~0_443 && v_~a12~0_443 <= 73281) && (a12 <= (-562768 + v_~a12~0_443 * 9 / 10) / 5 || (a12 <= (-562768 + v_~a12~0_443 * 9 / 10) / 5 + 1 && !((2 + v_~a12~0_443 * 9 / 10) % 5 == 0)))) && a21 <= 6) && a15 <= 7)) || (a15 <= 7 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15)))) || ((((9 <= a21 && (((6 <= a15 && a21 <= 9) && a15 <= 8) || (a21 <= 9 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15))))) && a24 == 1) && a12 <= 75) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 75) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((a24 == 1 && a12 <= 599997) && 10 <= a21) && a15 == 8)) || ((a12 <= 11 && a24 == 1) && 5 == a15)) || ((a24 == 1 && 9 <= a15) && 81 <= a12)) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && 0 <= a12 + 42)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 49 + a12 <= 0)) || ((a24 == 1 && 5 == a15) && 526013 <= a12)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && 492393 + a12 <= 0)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant [2021-10-13 01:13:32,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,453 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,453 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,454 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,455 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,455 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,455 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-13 01:13:32,456 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] Derived loop invariant: (((((((((((((((((9 <= a21 && a24 == 1) && a15 <= 8) && 49 + a12 <= 0) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || ((((((6 <= a15 && a21 <= 9) && a15 <= 8) || (a21 <= 9 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15)))) && a24 == 1) && a21 <= 6) && 0 <= a12 + 42)) || (((\exists v_~a12~0_443 : int :: (80 < v_~a12~0_443 && v_~a12~0_443 <= 73281) && (a12 <= (-562768 + v_~a12~0_443 * 9 / 10) / 5 || (a12 <= (-562768 + v_~a12~0_443 * 9 / 10) / 5 + 1 && !((2 + v_~a12~0_443 * 9 / 10) % 5 == 0)))) && a21 <= 6) && a15 <= 7)) || (a15 <= 7 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15)))) || ((((9 <= a21 && (((6 <= a15 && a21 <= 9) && a15 <= 8) || (a21 <= 9 && (((a24 == 1 && a15 <= 8) && !(a21 == 6)) || (a15 <= 8 && 8 <= a15))))) && a24 == 1) && a12 <= 75) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 75) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((a24 == 1 && a12 <= 599997) && 10 <= a21) && a15 == 8)) || ((a12 <= 11 && a24 == 1) && 5 == a15)) || ((a24 == 1 && 9 <= a15) && 81 <= a12)) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && 0 <= a12 + 42)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 49 + a12 <= 0)) || ((a24 == 1 && 5 == a15) && 526013 <= a12)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && 492393 + a12 <= 0)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8) RESULT: Ultimate proved your program to be correct! [2021-10-13 01:13:32,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ec0ac7-e44f-4f43-9725-3fda7588d306/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...