./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD --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 fbc8b86e86cd6737c503bef017b2b1abd25895fb1927b426e7290e477fc0b63c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:29:52,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:29:52,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:29:52,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:29:52,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:29:52,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:29:52,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:29:52,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:29:52,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:29:52,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:29:52,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:29:52,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:29:52,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:29:52,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:29:52,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:29:52,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:29:52,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:29:52,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:29:52,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:29:52,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:29:52,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:29:52,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:29:52,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:29:52,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:29:52,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:29:52,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:29:52,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:29:52,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:29:52,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:29:52,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:29:52,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:29:52,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:29:52,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:29:52,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:29:52,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:29:52,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:29:52,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:29:52,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:29:52,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:29:52,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:29:52,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:29:52,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:29:52,267 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:29:52,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:29:52,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:29:52,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:29:52,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:29:52,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:29:52,277 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:29:52,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:29:52,278 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:29:52,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:29:52,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:29:52,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:29:52,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:29:52,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:29:52,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:29:52,279 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:29:52,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:29:52,280 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:29:52,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:29:52,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:29:52,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:29:52,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:29:52,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:29:52,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:29:52,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:29:52,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:29:52,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:29:52,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:29:52,282 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:29:52,282 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:29:52,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:29:52,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:29:52,283 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_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbc8b86e86cd6737c503bef017b2b1abd25895fb1927b426e7290e477fc0b63c [2021-10-28 23:29:52,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:29:52,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:29:52,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:29:52,678 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:29:52,679 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:29:52,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/eca-rers2012/Problem14_label04.c [2021-10-28 23:29:52,780 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/data/fb033674c/1fd5d090367641a69c11af82e2d0a7c0/FLAG42866d300 [2021-10-28 23:29:53,613 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:29:53,627 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/sv-benchmarks/c/eca-rers2012/Problem14_label04.c [2021-10-28 23:29:53,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/data/fb033674c/1fd5d090367641a69c11af82e2d0a7c0/FLAG42866d300 [2021-10-28 23:29:53,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/data/fb033674c/1fd5d090367641a69c11af82e2d0a7c0 [2021-10-28 23:29:53,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:29:53,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:29:53,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:29:53,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:29:53,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:29:53,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:29:53" (1/1) ... [2021-10-28 23:29:53,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff2565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:53, skipping insertion in model container [2021-10-28 23:29:53,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:29:53" (1/1) ... [2021-10-28 23:29:53,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:29:53,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:29:54,007 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_71e863a4-51e0-499b-9dc8-77853b88762d/sv-benchmarks/c/eca-rers2012/Problem14_label04.c[5382,5395] [2021-10-28 23:29:54,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:29:54,282 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:29:54,321 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_71e863a4-51e0-499b-9dc8-77853b88762d/sv-benchmarks/c/eca-rers2012/Problem14_label04.c[5382,5395] [2021-10-28 23:29:54,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:29:54,538 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:29:54,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54 WrapperNode [2021-10-28 23:29:54,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:29:54,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:29:54,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:29:54,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:29:54,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (1/1) ... [2021-10-28 23:29:54,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (1/1) ... [2021-10-28 23:29:54,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:29:54,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:29:54,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:29:54,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:29:54,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (1/1) ... [2021-10-28 23:29:54,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (1/1) ... [2021-10-28 23:29:54,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (1/1) ... [2021-10-28 23:29:54,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (1/1) ... [2021-10-28 23:29:54,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (1/1) ... [2021-10-28 23:29:54,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (1/1) ... [2021-10-28 23:29:54,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (1/1) ... [2021-10-28 23:29:54,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:29:54,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:29:54,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:29:54,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:29:54,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (1/1) ... [2021-10-28 23:29:54,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:29:54,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:54,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:54,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:29:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:29:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:29:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:29:54,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:29:56,718 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:29:56,718 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 23:29:56,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:29:56 BoogieIcfgContainer [2021-10-28 23:29:56,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:29:56,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:29:56,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:29:56,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:29:56,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:29:53" (1/3) ... [2021-10-28 23:29:56,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfacb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:29:56, skipping insertion in model container [2021-10-28 23:29:56,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:54" (2/3) ... [2021-10-28 23:29:56,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfacb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:29:56, skipping insertion in model container [2021-10-28 23:29:56,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:29:56" (3/3) ... [2021-10-28 23:29:56,740 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label04.c [2021-10-28 23:29:56,745 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:29:56,745 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:29:56,820 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:29:56,853 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:29:56,853 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:29:56,882 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) [2021-10-28 23:29:56,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 23:29:56,891 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:56,892 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:56,893 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:29:56,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:56,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1382487458, now seen corresponding path program 1 times [2021-10-28 23:29:56,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:56,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944118647] [2021-10-28 23:29:56,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:56,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:57,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:57,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:57,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944118647] [2021-10-28 23:29:57,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944118647] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:29:57,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:29:57,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:29:57,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116106730] [2021-10-28 23:29:57,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:29:57,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:57,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:29:57,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:29:57,343 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 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:59,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:59,715 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2021-10-28 23:29:59,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:29:59,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-10-28 23:29:59,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:59,741 INFO L225 Difference]: With dead ends: 850 [2021-10-28 23:29:59,747 INFO L226 Difference]: Without dead ends: 538 [2021-10-28 23:29:59,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:29:59,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-28 23:29:59,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-10-28 23:29:59,866 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) [2021-10-28 23:29:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-10-28 23:29:59,871 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 52 [2021-10-28 23:29:59,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:59,872 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-10-28 23:29:59,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:59,872 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-10-28 23:29:59,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-28 23:29:59,881 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:59,881 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:59,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:29:59,882 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:29:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:59,883 INFO L85 PathProgramCache]: Analyzing trace with hash 327314734, now seen corresponding path program 1 times [2021-10-28 23:29:59,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:59,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973301611] [2021-10-28 23:29:59,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:59,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:00,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:00,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973301611] [2021-10-28 23:30:00,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973301611] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:00,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:00,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:00,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49867371] [2021-10-28 23:30:00,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:30:00,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:00,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:30:00,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:30:00,266 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:01,322 INFO L93 Difference]: Finished difference Result 1281 states and 1978 transitions. [2021-10-28 23:30:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:30:01,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-10-28 23:30:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:01,331 INFO L225 Difference]: With dead ends: 1281 [2021-10-28 23:30:01,331 INFO L226 Difference]: Without dead ends: 894 [2021-10-28 23:30:01,333 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:30:01,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-10-28 23:30:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 716. [2021-10-28 23:30:01,372 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) [2021-10-28 23:30:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 873 transitions. [2021-10-28 23:30:01,376 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 873 transitions. Word has length 132 [2021-10-28 23:30:01,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:01,377 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 873 transitions. [2021-10-28 23:30:01,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 873 transitions. [2021-10-28 23:30:01,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-10-28 23:30:01,395 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:01,396 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-28 23:30:01,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:30:01,397 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:01,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:01,398 INFO L85 PathProgramCache]: Analyzing trace with hash 138717315, now seen corresponding path program 1 times [2021-10-28 23:30:01,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:01,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075546129] [2021-10-28 23:30:01,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:01,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:01,664 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 99 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:01,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:01,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075546129] [2021-10-28 23:30:01,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075546129] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:01,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066877806] [2021-10-28 23:30:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:01,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:01,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:01,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:01,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:30:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:01,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:30:01,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-28 23:30:02,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066877806] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:02,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:30:02,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-28 23:30:02,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987456201] [2021-10-28 23:30:02,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:02,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:02,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:02,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:30:02,699 INFO L87 Difference]: Start difference. First operand 716 states and 873 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:03,487 INFO L93 Difference]: Finished difference Result 1608 states and 2071 transitions. [2021-10-28 23:30:03,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:03,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 223 [2021-10-28 23:30:03,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:03,498 INFO L225 Difference]: With dead ends: 1608 [2021-10-28 23:30:03,498 INFO L226 Difference]: Without dead ends: 1072 [2021-10-28 23:30:03,499 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:30:03,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-28 23:30:03,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2021-10-28 23:30:03,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.211646136618141) internal successors, (1082), 893 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:03,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1082 transitions. [2021-10-28 23:30:03,565 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1082 transitions. Word has length 223 [2021-10-28 23:30:03,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:03,566 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1082 transitions. [2021-10-28 23:30:03,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1082 transitions. [2021-10-28 23:30:03,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-10-28 23:30:03,572 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:03,572 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-28 23:30:03,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:03,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:03,796 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:03,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:03,797 INFO L85 PathProgramCache]: Analyzing trace with hash 880914236, now seen corresponding path program 1 times [2021-10-28 23:30:03,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:03,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57807471] [2021-10-28 23:30:03,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:03,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:04,060 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:04,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:04,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57807471] [2021-10-28 23:30:04,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57807471] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:04,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:04,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:04,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133234170] [2021-10-28 23:30:04,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:04,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:04,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:04,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:04,071 INFO L87 Difference]: Start difference. First operand 894 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:04,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:04,801 INFO L93 Difference]: Finished difference Result 1964 states and 2415 transitions. [2021-10-28 23:30:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:04,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 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 226 [2021-10-28 23:30:04,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:04,812 INFO L225 Difference]: With dead ends: 1964 [2021-10-28 23:30:04,813 INFO L226 Difference]: Without dead ends: 1250 [2021-10-28 23:30:04,814 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:04,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-28 23:30:04,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-10-28 23:30:04,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.1753402722177742) internal successors, (1468), 1249 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:04,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1468 transitions. [2021-10-28 23:30:04,860 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1468 transitions. Word has length 226 [2021-10-28 23:30:04,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:04,861 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1468 transitions. [2021-10-28 23:30:04,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:04,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1468 transitions. [2021-10-28 23:30:04,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-10-28 23:30:04,874 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:04,875 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-28 23:30:04,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:30:04,876 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:04,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:04,877 INFO L85 PathProgramCache]: Analyzing trace with hash 142603424, now seen corresponding path program 1 times [2021-10-28 23:30:04,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:04,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297501547] [2021-10-28 23:30:04,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:04,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:05,253 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 228 proven. 130 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 23:30:05,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:05,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297501547] [2021-10-28 23:30:05,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297501547] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:05,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856777738] [2021-10-28 23:30:05,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:05,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:05,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:05,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:05,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:30:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:05,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:30:05,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:06,613 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-28 23:30:06,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856777738] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:06,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:30:06,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-28 23:30:06,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275385906] [2021-10-28 23:30:06,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:06,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:06,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:06,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:30:06,618 INFO L87 Difference]: Start difference. First operand 1250 states and 1468 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:07,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:07,298 INFO L93 Difference]: Finished difference Result 2854 states and 3498 transitions. [2021-10-28 23:30:07,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:07,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 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 386 [2021-10-28 23:30:07,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:07,311 INFO L225 Difference]: With dead ends: 2854 [2021-10-28 23:30:07,312 INFO L226 Difference]: Without dead ends: 1962 [2021-10-28 23:30:07,314 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:30:07,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-28 23:30:07,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-10-28 23:30:07,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1662417134115248) internal successors, (2287), 1961 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2287 transitions. [2021-10-28 23:30:07,371 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2287 transitions. Word has length 386 [2021-10-28 23:30:07,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:07,372 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2287 transitions. [2021-10-28 23:30:07,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:07,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2287 transitions. [2021-10-28 23:30:07,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2021-10-28 23:30:07,382 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:07,382 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-28 23:30:07,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:07,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:07,604 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:07,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:07,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1255761555, now seen corresponding path program 1 times [2021-10-28 23:30:07,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:07,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590013436] [2021-10-28 23:30:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:07,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-28 23:30:07,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:07,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590013436] [2021-10-28 23:30:07,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590013436] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:07,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896016411] [2021-10-28 23:30:07,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:07,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:07,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:07,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:07,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:30:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:08,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:30:08,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:09,642 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2021-10-28 23:30:09,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896016411] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:09,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:30:09,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-28 23:30:09,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774343598] [2021-10-28 23:30:09,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:09,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:09,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:09,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:30:09,646 INFO L87 Difference]: Start difference. First operand 1962 states and 2287 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) [2021-10-28 23:30:10,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:10,289 INFO L93 Difference]: Finished difference Result 2854 states and 3290 transitions. [2021-10-28 23:30:10,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:10,289 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 432 [2021-10-28 23:30:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:10,308 INFO L225 Difference]: With dead ends: 2854 [2021-10-28 23:30:10,308 INFO L226 Difference]: Without dead ends: 2852 [2021-10-28 23:30:10,309 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:30:10,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-10-28 23:30:10,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1784. [2021-10-28 23:30:10,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1402131239484015) internal successors, (2033), 1783 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:10,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2033 transitions. [2021-10-28 23:30:10,368 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2033 transitions. Word has length 432 [2021-10-28 23:30:10,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:10,369 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2033 transitions. [2021-10-28 23:30:10,370 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) [2021-10-28 23:30:10,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2033 transitions. [2021-10-28 23:30:10,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-10-28 23:30:10,379 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:10,380 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:30:10,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:10,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:10,592 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:10,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:10,593 INFO L85 PathProgramCache]: Analyzing trace with hash -35807260, now seen corresponding path program 1 times [2021-10-28 23:30:10,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:10,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435804897] [2021-10-28 23:30:10,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:10,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-10-28 23:30:10,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:10,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435804897] [2021-10-28 23:30:10,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435804897] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:10,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:10,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:10,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834687288] [2021-10-28 23:30:10,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:30:10,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:10,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:30:10,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:30:10,834 INFO L87 Difference]: Start difference. First operand 1784 states and 2033 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:11,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:11,534 INFO L93 Difference]: Finished difference Result 3417 states and 3936 transitions. [2021-10-28 23:30:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:30:11,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 434 [2021-10-28 23:30:11,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:11,548 INFO L225 Difference]: With dead ends: 3417 [2021-10-28 23:30:11,548 INFO L226 Difference]: Without dead ends: 1962 [2021-10-28 23:30:11,551 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:30:11,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-28 23:30:11,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-10-28 23:30:11,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.089736399326977) internal successors, (1943), 1783 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:11,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1943 transitions. [2021-10-28 23:30:11,609 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1943 transitions. Word has length 434 [2021-10-28 23:30:11,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:11,610 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 1943 transitions. [2021-10-28 23:30:11,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:11,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1943 transitions. [2021-10-28 23:30:11,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2021-10-28 23:30:11,623 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:11,624 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-10-28 23:30:11,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 23:30:11,624 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:11,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1854062487, now seen corresponding path program 1 times [2021-10-28 23:30:11,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:11,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602218684] [2021-10-28 23:30:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:11,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:11,881 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-28 23:30:11,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:11,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602218684] [2021-10-28 23:30:11,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602218684] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:11,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:11,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:11,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866388971] [2021-10-28 23:30:11,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:11,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:11,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:11,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:11,885 INFO L87 Difference]: Start difference. First operand 1784 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:12,518 INFO L93 Difference]: Finished difference Result 3922 states and 4347 transitions. [2021-10-28 23:30:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:12,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 445 [2021-10-28 23:30:12,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:12,532 INFO L225 Difference]: With dead ends: 3922 [2021-10-28 23:30:12,535 INFO L226 Difference]: Without dead ends: 2496 [2021-10-28 23:30:12,538 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:12,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-10-28 23:30:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2021-10-28 23:30:12,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.092184368737475) internal successors, (2725), 2495 states have internal predecessors, (2725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2725 transitions. [2021-10-28 23:30:12,604 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2725 transitions. Word has length 445 [2021-10-28 23:30:12,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:12,605 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2725 transitions. [2021-10-28 23:30:12,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:12,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2725 transitions. [2021-10-28 23:30:12,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2021-10-28 23:30:12,613 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:12,614 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-28 23:30:12,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:30:12,615 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:12,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:12,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1718197722, now seen corresponding path program 1 times [2021-10-28 23:30:12,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:12,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735492413] [2021-10-28 23:30:12,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:12,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-28 23:30:12,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:12,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735492413] [2021-10-28 23:30:12,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735492413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:12,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:12,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:12,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61746314] [2021-10-28 23:30:12,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:12,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:12,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:12,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:12,847 INFO L87 Difference]: Start difference. First operand 2496 states and 2725 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:13,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:13,477 INFO L93 Difference]: Finished difference Result 5880 states and 6513 transitions. [2021-10-28 23:30:13,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:13,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 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 486 [2021-10-28 23:30:13,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:13,496 INFO L225 Difference]: With dead ends: 5880 [2021-10-28 23:30:13,496 INFO L226 Difference]: Without dead ends: 3742 [2021-10-28 23:30:13,499 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:13,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-10-28 23:30:13,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2021-10-28 23:30:13,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0828655439722) internal successors, (4051), 3741 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4051 transitions. [2021-10-28 23:30:13,602 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4051 transitions. Word has length 486 [2021-10-28 23:30:13,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:13,604 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4051 transitions. [2021-10-28 23:30:13,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4051 transitions. [2021-10-28 23:30:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2021-10-28 23:30:13,609 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:13,610 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 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] [2021-10-28 23:30:13,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 23:30:13,611 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1589037133, now seen corresponding path program 1 times [2021-10-28 23:30:13,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:13,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010170108] [2021-10-28 23:30:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:13,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-10-28 23:30:13,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:13,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010170108] [2021-10-28 23:30:13,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010170108] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:13,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:13,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:13,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979867732] [2021-10-28 23:30:13,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:13,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:13,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:13,861 INFO L87 Difference]: Start difference. First operand 3742 states and 4051 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:14,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:14,426 INFO L93 Difference]: Finished difference Result 6948 states and 7546 transitions. [2021-10-28 23:30:14,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:14,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 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 522 [2021-10-28 23:30:14,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:14,447 INFO L225 Difference]: With dead ends: 6948 [2021-10-28 23:30:14,448 INFO L226 Difference]: Without dead ends: 3564 [2021-10-28 23:30:14,452 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:14,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-10-28 23:30:14,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-10-28 23:30:14,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.078578110383536) internal successors, (3459), 3207 states have internal predecessors, (3459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:14,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3459 transitions. [2021-10-28 23:30:14,536 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3459 transitions. Word has length 522 [2021-10-28 23:30:14,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:14,538 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3459 transitions. [2021-10-28 23:30:14,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:14,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3459 transitions. [2021-10-28 23:30:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2021-10-28 23:30:14,544 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:14,545 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-10-28 23:30:14,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 23:30:14,545 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:14,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:14,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1310836641, now seen corresponding path program 1 times [2021-10-28 23:30:14,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:14,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248410388] [2021-10-28 23:30:14,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:14,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-28 23:30:14,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:14,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248410388] [2021-10-28 23:30:14,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248410388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:14,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040523930] [2021-10-28 23:30:14,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:14,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:14,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:14,852 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:14,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:30:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:15,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:30:15,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-28 23:30:17,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040523930] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:17,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:17,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-28 23:30:17,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557976489] [2021-10-28 23:30:17,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:30:17,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:17,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:30:17,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:30:17,127 INFO L87 Difference]: Start difference. First operand 3208 states and 3459 transitions. Second operand has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:17,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:17,928 INFO L93 Difference]: Finished difference Result 7126 states and 7747 transitions. [2021-10-28 23:30:17,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:30:17,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 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 641 [2021-10-28 23:30:17,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:17,953 INFO L225 Difference]: With dead ends: 7126 [2021-10-28 23:30:17,953 INFO L226 Difference]: Without dead ends: 4276 [2021-10-28 23:30:17,958 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:30:17,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-10-28 23:30:18,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2021-10-28 23:30:18,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.0776608187134502) internal successors, (4607), 4275 states have internal predecessors, (4607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:18,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4607 transitions. [2021-10-28 23:30:18,117 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4607 transitions. Word has length 641 [2021-10-28 23:30:18,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:18,118 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4607 transitions. [2021-10-28 23:30:18,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:18,119 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4607 transitions. [2021-10-28 23:30:18,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2021-10-28 23:30:18,126 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:18,127 INFO L513 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-10-28 23:30:18,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:18,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 23:30:18,349 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:18,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:18,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2043682623, now seen corresponding path program 1 times [2021-10-28 23:30:18,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:18,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437312976] [2021-10-28 23:30:18,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:18,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:18,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1038 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2021-10-28 23:30:18,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:18,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437312976] [2021-10-28 23:30:18,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437312976] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:18,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:18,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:18,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268414940] [2021-10-28 23:30:18,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:18,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:18,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:18,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:18,638 INFO L87 Difference]: Start difference. First operand 4276 states and 4607 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) [2021-10-28 23:30:19,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:19,161 INFO L93 Difference]: Finished difference Result 9618 states and 10448 transitions. [2021-10-28 23:30:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:19,162 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 713 [2021-10-28 23:30:19,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:19,230 INFO L225 Difference]: With dead ends: 9618 [2021-10-28 23:30:19,232 INFO L226 Difference]: Without dead ends: 5700 [2021-10-28 23:30:19,237 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-10-28 23:30:19,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5344. [2021-10-28 23:30:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.078420363091896) internal successors, (5762), 5343 states have internal predecessors, (5762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:19,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5762 transitions. [2021-10-28 23:30:19,400 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5762 transitions. Word has length 713 [2021-10-28 23:30:19,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:19,402 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 5762 transitions. [2021-10-28 23:30:19,403 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) [2021-10-28 23:30:19,403 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5762 transitions. [2021-10-28 23:30:19,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2021-10-28 23:30:19,415 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:19,416 INFO L513 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-10-28 23:30:19,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 23:30:19,416 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:19,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:19,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1828962068, now seen corresponding path program 1 times [2021-10-28 23:30:19,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:19,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831081189] [2021-10-28 23:30:19,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:19,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1146 proven. 93 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-10-28 23:30:19,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:19,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831081189] [2021-10-28 23:30:19,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831081189] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:19,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468404299] [2021-10-28 23:30:19,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:19,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:19,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:19,799 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:19,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:30:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:20,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:30:20,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1239 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-10-28 23:30:22,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468404299] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:22,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:30:22,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-28 23:30:22,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948273625] [2021-10-28 23:30:22,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:22,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:22,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:22,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:30:22,846 INFO L87 Difference]: Start difference. First operand 5344 states and 5762 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) [2021-10-28 23:30:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:23,371 INFO L93 Difference]: Finished difference Result 10864 states and 11716 transitions. [2021-10-28 23:30:23,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:23,371 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 731 [2021-10-28 23:30:23,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:23,389 INFO L225 Difference]: With dead ends: 10864 [2021-10-28 23:30:23,390 INFO L226 Difference]: Without dead ends: 5878 [2021-10-28 23:30:23,396 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:30:23,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2021-10-28 23:30:23,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5522. [2021-10-28 23:30:23,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0760731751494295) internal successors, (5941), 5521 states have internal predecessors, (5941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5941 transitions. [2021-10-28 23:30:23,505 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5941 transitions. Word has length 731 [2021-10-28 23:30:23,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:23,506 INFO L470 AbstractCegarLoop]: Abstraction has 5522 states and 5941 transitions. [2021-10-28 23:30:23,506 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) [2021-10-28 23:30:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5941 transitions. [2021-10-28 23:30:23,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2021-10-28 23:30:23,542 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:23,543 INFO L513 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-10-28 23:30:23,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:23,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-28 23:30:23,744 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:23,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:23,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1867062169, now seen corresponding path program 1 times [2021-10-28 23:30:23,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:23,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156225414] [2021-10-28 23:30:23,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:23,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1758 backedges. 1071 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2021-10-28 23:30:24,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:24,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156225414] [2021-10-28 23:30:24,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156225414] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:24,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:24,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:24,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714448965] [2021-10-28 23:30:24,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:24,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:24,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:24,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:24,069 INFO L87 Difference]: Start difference. First operand 5522 states and 5941 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) [2021-10-28 23:30:24,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:24,715 INFO L93 Difference]: Finished difference Result 10864 states and 11735 transitions. [2021-10-28 23:30:24,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:24,716 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 758 [2021-10-28 23:30:24,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:24,736 INFO L225 Difference]: With dead ends: 10864 [2021-10-28 23:30:24,736 INFO L226 Difference]: Without dead ends: 5700 [2021-10-28 23:30:24,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:24,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-10-28 23:30:24,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2021-10-28 23:30:24,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0701877522372345) internal successors, (6099), 5699 states have internal predecessors, (6099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:24,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6099 transitions. [2021-10-28 23:30:24,934 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6099 transitions. Word has length 758 [2021-10-28 23:30:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:24,935 INFO L470 AbstractCegarLoop]: Abstraction has 5700 states and 6099 transitions. [2021-10-28 23:30:24,935 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) [2021-10-28 23:30:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6099 transitions. [2021-10-28 23:30:24,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2021-10-28 23:30:24,950 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:24,951 INFO L513 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, 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, 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] [2021-10-28 23:30:24,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 23:30:24,951 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:24,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:24,952 INFO L85 PathProgramCache]: Analyzing trace with hash -540711606, now seen corresponding path program 1 times [2021-10-28 23:30:24,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:24,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189848832] [2021-10-28 23:30:24,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:24,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:25,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 1215 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-10-28 23:30:25,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:25,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189848832] [2021-10-28 23:30:25,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189848832] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:25,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590865337] [2021-10-28 23:30:25,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:25,520 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:25,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:25,523 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:25,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:30:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:26,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:30:26,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 928 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2021-10-28 23:30:29,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590865337] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:29,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:30:29,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-10-28 23:30:29,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610657478] [2021-10-28 23:30:29,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:30:29,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:29,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:30:29,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:30:29,832 INFO L87 Difference]: Start difference. First operand 5700 states and 6099 transitions. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:31,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:31,045 INFO L93 Difference]: Finished difference Result 12644 states and 13584 transitions. [2021-10-28 23:30:31,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:30:31,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 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 808 [2021-10-28 23:30:31,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:31,062 INFO L225 Difference]: With dead ends: 12644 [2021-10-28 23:30:31,062 INFO L226 Difference]: Without dead ends: 7302 [2021-10-28 23:30:31,070 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:30:31,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2021-10-28 23:30:31,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 6946. [2021-10-28 23:30:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6946 states, 6945 states have (on average 1.0704103671706264) internal successors, (7434), 6945 states have internal predecessors, (7434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6946 states to 6946 states and 7434 transitions. [2021-10-28 23:30:31,192 INFO L78 Accepts]: Start accepts. Automaton has 6946 states and 7434 transitions. Word has length 808 [2021-10-28 23:30:31,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:31,193 INFO L470 AbstractCegarLoop]: Abstraction has 6946 states and 7434 transitions. [2021-10-28 23:30:31,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:31,194 INFO L276 IsEmpty]: Start isEmpty. Operand 6946 states and 7434 transitions. [2021-10-28 23:30:31,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2021-10-28 23:30:31,204 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:31,205 INFO L513 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, 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, 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] [2021-10-28 23:30:31,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:31,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:31,431 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:31,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:31,432 INFO L85 PathProgramCache]: Analyzing trace with hash -172725225, now seen corresponding path program 1 times [2021-10-28 23:30:31,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:31,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460362678] [2021-10-28 23:30:31,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:31,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:31,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 839 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2021-10-28 23:30:31,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:31,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460362678] [2021-10-28 23:30:31,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460362678] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:31,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:31,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:31,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948490836] [2021-10-28 23:30:31,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:31,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:31,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:31,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:31,803 INFO L87 Difference]: Start difference. First operand 6946 states and 7434 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:32,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:32,353 INFO L93 Difference]: Finished difference Result 13890 states and 14878 transitions. [2021-10-28 23:30:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:32,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 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 810 [2021-10-28 23:30:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:32,368 INFO L225 Difference]: With dead ends: 13890 [2021-10-28 23:30:32,368 INFO L226 Difference]: Without dead ends: 7302 [2021-10-28 23:30:32,376 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:32,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2021-10-28 23:30:32,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 6768. [2021-10-28 23:30:32,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0629525639131077) internal successors, (7193), 6767 states have internal predecessors, (7193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:32,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7193 transitions. [2021-10-28 23:30:32,549 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7193 transitions. Word has length 810 [2021-10-28 23:30:32,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:32,550 INFO L470 AbstractCegarLoop]: Abstraction has 6768 states and 7193 transitions. [2021-10-28 23:30:32,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:32,551 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7193 transitions. [2021-10-28 23:30:32,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2021-10-28 23:30:32,568 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:32,570 INFO L513 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, 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, 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] [2021-10-28 23:30:32,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 23:30:32,571 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:32,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:32,572 INFO L85 PathProgramCache]: Analyzing trace with hash -2108387026, now seen corresponding path program 1 times [2021-10-28 23:30:32,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:32,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72132503] [2021-10-28 23:30:32,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:32,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:33,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 1251 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-10-28 23:30:33,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:33,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72132503] [2021-10-28 23:30:33,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72132503] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:33,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139736837] [2021-10-28 23:30:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:33,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:33,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:33,092 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:33,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:30:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:34,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:30:34,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 964 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2021-10-28 23:30:37,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139736837] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:37,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:30:37,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-10-28 23:30:37,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505940752] [2021-10-28 23:30:37,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:30:37,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:37,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:30:37,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:30:37,082 INFO L87 Difference]: Start difference. First operand 6768 states and 7193 transitions. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:38,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:38,039 INFO L93 Difference]: Finished difference Result 14068 states and 14973 transitions. [2021-10-28 23:30:38,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:30:38,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 841 [2021-10-28 23:30:38,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:38,051 INFO L225 Difference]: With dead ends: 14068 [2021-10-28 23:30:38,052 INFO L226 Difference]: Without dead ends: 7658 [2021-10-28 23:30:38,057 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:30:38,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7658 states. [2021-10-28 23:30:38,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7658 to 6768. [2021-10-28 23:30:38,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0629525639131077) internal successors, (7193), 6767 states have internal predecessors, (7193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7193 transitions. [2021-10-28 23:30:38,159 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7193 transitions. Word has length 841 [2021-10-28 23:30:38,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:38,160 INFO L470 AbstractCegarLoop]: Abstraction has 6768 states and 7193 transitions. [2021-10-28 23:30:38,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7193 transitions. [2021-10-28 23:30:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2021-10-28 23:30:38,170 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:38,172 INFO L513 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, 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, 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] [2021-10-28 23:30:38,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:38,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:38,387 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:38,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:38,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1692043947, now seen corresponding path program 1 times [2021-10-28 23:30:38,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:38,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748277358] [2021-10-28 23:30:38,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:38,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:38,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 1252 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-10-28 23:30:38,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:38,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748277358] [2021-10-28 23:30:38,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748277358] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:38,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526724417] [2021-10-28 23:30:38,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:38,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:38,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:38,829 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:38,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:30:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:40,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:30:40,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 1340 proven. 537 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-10-28 23:30:45,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526724417] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:45,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:45,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2021-10-28 23:30:45,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989767604] [2021-10-28 23:30:45,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:30:45,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:45,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:30:45,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:30:45,224 INFO L87 Difference]: Start difference. First operand 6768 states and 7193 transitions. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:47,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:47,974 INFO L93 Difference]: Finished difference Result 14867 states and 15794 transitions. [2021-10-28 23:30:47,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:30:47,975 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 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 842 [2021-10-28 23:30:47,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:47,990 INFO L225 Difference]: With dead ends: 14867 [2021-10-28 23:30:47,990 INFO L226 Difference]: Without dead ends: 8370 [2021-10-28 23:30:47,997 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 856 GetRequests, 843 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:30:48,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8370 states. [2021-10-28 23:30:48,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8370 to 7124. [2021-10-28 23:30:48,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7124 states, 7123 states have (on average 1.0553137722869577) internal successors, (7517), 7123 states have internal predecessors, (7517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:48,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7124 states to 7124 states and 7517 transitions. [2021-10-28 23:30:48,123 INFO L78 Accepts]: Start accepts. Automaton has 7124 states and 7517 transitions. Word has length 842 [2021-10-28 23:30:48,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:48,125 INFO L470 AbstractCegarLoop]: Abstraction has 7124 states and 7517 transitions. [2021-10-28 23:30:48,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:48,125 INFO L276 IsEmpty]: Start isEmpty. Operand 7124 states and 7517 transitions. [2021-10-28 23:30:48,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2021-10-28 23:30:48,136 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:48,137 INFO L513 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, 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, 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] [2021-10-28 23:30:48,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:30:48,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-28 23:30:48,352 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:48,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:48,352 INFO L85 PathProgramCache]: Analyzing trace with hash 725789310, now seen corresponding path program 1 times [2021-10-28 23:30:48,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:48,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418824357] [2021-10-28 23:30:48,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:48,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:48,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2264 backedges. 1270 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2021-10-28 23:30:48,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:48,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418824357] [2021-10-28 23:30:48,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418824357] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:48,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:48,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:48,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756909872] [2021-10-28 23:30:48,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:48,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:48,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:48,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:48,687 INFO L87 Difference]: Start difference. First operand 7124 states and 7517 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) [2021-10-28 23:30:49,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:49,220 INFO L93 Difference]: Finished difference Result 14246 states and 15040 transitions. [2021-10-28 23:30:49,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:49,221 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 853 [2021-10-28 23:30:49,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:49,234 INFO L225 Difference]: With dead ends: 14246 [2021-10-28 23:30:49,234 INFO L226 Difference]: Without dead ends: 7480 [2021-10-28 23:30:49,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:49,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2021-10-28 23:30:49,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 7302. [2021-10-28 23:30:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7302 states, 7301 states have (on average 1.0504040542391453) internal successors, (7669), 7301 states have internal predecessors, (7669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:49,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7302 states to 7302 states and 7669 transitions. [2021-10-28 23:30:49,358 INFO L78 Accepts]: Start accepts. Automaton has 7302 states and 7669 transitions. Word has length 853 [2021-10-28 23:30:49,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:49,359 INFO L470 AbstractCegarLoop]: Abstraction has 7302 states and 7669 transitions. [2021-10-28 23:30:49,360 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) [2021-10-28 23:30:49,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7302 states and 7669 transitions. [2021-10-28 23:30:49,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2021-10-28 23:30:49,372 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:49,373 INFO L513 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, 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, 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] [2021-10-28 23:30:49,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 23:30:49,374 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:49,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:49,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2126525007, now seen corresponding path program 1 times [2021-10-28 23:30:49,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:49,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657401961] [2021-10-28 23:30:49,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:49,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:49,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2513 backedges. 733 proven. 29 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2021-10-28 23:30:49,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:49,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657401961] [2021-10-28 23:30:49,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657401961] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:49,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057710209] [2021-10-28 23:30:49,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:49,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:30:49,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:49,980 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:30:49,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:30:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:51,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:30:51,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:30:58,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2513 backedges. 629 proven. 769 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2021-10-28 23:30:58,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057710209] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:30:58,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:30:58,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 10 [2021-10-28 23:30:58,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59505752] [2021-10-28 23:30:58,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:30:58,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:58,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:30:58,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:30:58,538 INFO L87 Difference]: Start difference. First operand 7302 states and 7669 transitions. Second operand has 11 states, 11 states have (on average 68.0) internal successors, (748), 10 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:02,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:02,068 INFO L93 Difference]: Finished difference Result 15635 states and 16416 transitions. [2021-10-28 23:31:02,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:31:02,069 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 68.0) internal successors, (748), 10 states have internal predecessors, (748), 0 states have call successors, (0), 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 927 [2021-10-28 23:31:02,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:02,081 INFO L225 Difference]: With dead ends: 15635 [2021-10-28 23:31:02,081 INFO L226 Difference]: Without dead ends: 8397 [2021-10-28 23:31:02,087 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 921 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:31:02,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8397 states. [2021-10-28 23:31:02,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8397 to 7302. [2021-10-28 23:31:02,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7302 states, 7301 states have (on average 1.0468428982331188) internal successors, (7643), 7301 states have internal predecessors, (7643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7302 states to 7302 states and 7643 transitions. [2021-10-28 23:31:02,202 INFO L78 Accepts]: Start accepts. Automaton has 7302 states and 7643 transitions. Word has length 927 [2021-10-28 23:31:02,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:02,203 INFO L470 AbstractCegarLoop]: Abstraction has 7302 states and 7643 transitions. [2021-10-28 23:31:02,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 68.0) internal successors, (748), 10 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 7302 states and 7643 transitions. [2021-10-28 23:31:02,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2021-10-28 23:31:02,248 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:02,249 INFO L513 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, 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, 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] [2021-10-28 23:31:02,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:02,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:02,470 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:02,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1886227147, now seen corresponding path program 1 times [2021-10-28 23:31:02,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:02,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487802014] [2021-10-28 23:31:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:02,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:02,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3342 backedges. 852 proven. 29 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2021-10-28 23:31:02,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:02,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487802014] [2021-10-28 23:31:02,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487802014] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:02,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909404370] [2021-10-28 23:31:02,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:02,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:02,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:02,898 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:02,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 23:31:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:05,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:31:05,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:08,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3342 backedges. 0 proven. 881 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2021-10-28 23:31:08,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909404370] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:08,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:31:08,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-10-28 23:31:08,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633694177] [2021-10-28 23:31:08,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:31:08,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:08,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:31:08,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:31:08,917 INFO L87 Difference]: Start difference. First operand 7302 states and 7643 transitions. Second operand has 8 states, 8 states have (on average 74.125) internal successors, (593), 7 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:10,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:10,487 INFO L93 Difference]: Finished difference Result 14631 states and 15313 transitions. [2021-10-28 23:31:10,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:31:10,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 74.125) internal successors, (593), 7 states have internal predecessors, (593), 0 states have call successors, (0), 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 1056 [2021-10-28 23:31:10,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:10,496 INFO L225 Difference]: With dead ends: 14631 [2021-10-28 23:31:10,497 INFO L226 Difference]: Without dead ends: 7480 [2021-10-28 23:31:10,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1062 GetRequests, 1053 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:31:10,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2021-10-28 23:31:10,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 6946. [2021-10-28 23:31:10,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6946 states, 6945 states have (on average 1.0429085673146148) internal successors, (7243), 6945 states have internal predecessors, (7243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6946 states to 6946 states and 7243 transitions. [2021-10-28 23:31:10,607 INFO L78 Accepts]: Start accepts. Automaton has 6946 states and 7243 transitions. Word has length 1056 [2021-10-28 23:31:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:10,608 INFO L470 AbstractCegarLoop]: Abstraction has 6946 states and 7243 transitions. [2021-10-28 23:31:10,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.125) internal successors, (593), 7 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand 6946 states and 7243 transitions. [2021-10-28 23:31:10,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1401 [2021-10-28 23:31:10,628 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:10,629 INFO L513 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, 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, 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] [2021-10-28 23:31:10,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:10,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-28 23:31:10,843 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:10,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:10,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1320783353, now seen corresponding path program 1 times [2021-10-28 23:31:10,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:10,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122956712] [2021-10-28 23:31:10,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:10,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:11,716 INFO L134 CoverageAnalysis]: Checked inductivity of 6065 backedges. 1489 proven. 0 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-10-28 23:31:11,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:11,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122956712] [2021-10-28 23:31:11,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122956712] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:11,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:11,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:31:11,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429007108] [2021-10-28 23:31:11,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:31:11,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:11,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:31:11,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:31:11,724 INFO L87 Difference]: Start difference. First operand 6946 states and 7243 transitions. Second operand has 5 states, 5 states have (on average 67.8) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:12,690 INFO L93 Difference]: Finished difference Result 13736 states and 14329 transitions. [2021-10-28 23:31:12,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:31:12,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 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 1400 [2021-10-28 23:31:12,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:12,714 INFO L225 Difference]: With dead ends: 13736 [2021-10-28 23:31:12,714 INFO L226 Difference]: Without dead ends: 6946 [2021-10-28 23:31:12,716 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:31:12,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2021-10-28 23:31:12,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 6946. [2021-10-28 23:31:12,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6946 states, 6945 states have (on average 1.0424766018718503) internal successors, (7240), 6945 states have internal predecessors, (7240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6946 states to 6946 states and 7240 transitions. [2021-10-28 23:31:12,859 INFO L78 Accepts]: Start accepts. Automaton has 6946 states and 7240 transitions. Word has length 1400 [2021-10-28 23:31:12,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:12,860 INFO L470 AbstractCegarLoop]: Abstraction has 6946 states and 7240 transitions. [2021-10-28 23:31:12,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:12,861 INFO L276 IsEmpty]: Start isEmpty. Operand 6946 states and 7240 transitions. [2021-10-28 23:31:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1476 [2021-10-28 23:31:12,883 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:12,884 INFO L513 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, 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, 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, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:31:12,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-28 23:31:12,884 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:12,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:12,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1139194963, now seen corresponding path program 1 times [2021-10-28 23:31:12,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:12,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769569138] [2021-10-28 23:31:12,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:12,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:13,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6368 backedges. 549 proven. 0 refuted. 0 times theorem prover too weak. 5819 trivial. 0 not checked. [2021-10-28 23:31:13,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:13,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769569138] [2021-10-28 23:31:13,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769569138] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:13,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:13,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:31:13,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236530901] [2021-10-28 23:31:13,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:31:13,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:13,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:31:13,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:31:13,626 INFO L87 Difference]: Start difference. First operand 6946 states and 7240 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:14,111 INFO L93 Difference]: Finished difference Result 8016 states and 8323 transitions. [2021-10-28 23:31:14,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:31:14,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 1475 [2021-10-28 23:31:14,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:14,120 INFO L225 Difference]: With dead ends: 8016 [2021-10-28 23:31:14,120 INFO L226 Difference]: Without dead ends: 8014 [2021-10-28 23:31:14,122 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:31:14,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8014 states. [2021-10-28 23:31:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8014 to 6590. [2021-10-28 23:31:14,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0438609804219152) internal successors, (6878), 6589 states have internal predecessors, (6878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:14,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 6878 transitions. [2021-10-28 23:31:14,224 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 6878 transitions. Word has length 1475 [2021-10-28 23:31:14,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:14,225 INFO L470 AbstractCegarLoop]: Abstraction has 6590 states and 6878 transitions. [2021-10-28 23:31:14,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:14,226 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 6878 transitions. [2021-10-28 23:31:14,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1519 [2021-10-28 23:31:14,322 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:14,322 INFO L513 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, 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, 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] [2021-10-28 23:31:14,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-28 23:31:14,323 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:14,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:14,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1702784966, now seen corresponding path program 1 times [2021-10-28 23:31:14,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:14,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552263171] [2021-10-28 23:31:14,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:14,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:15,205 INFO L134 CoverageAnalysis]: Checked inductivity of 7302 backedges. 906 proven. 819 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2021-10-28 23:31:15,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:15,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552263171] [2021-10-28 23:31:15,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552263171] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:15,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978591783] [2021-10-28 23:31:15,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:15,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:15,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:15,212 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:15,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 23:31:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:18,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:31:18,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 7302 backedges. 1725 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2021-10-28 23:31:21,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978591783] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:21,084 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:31:21,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-28 23:31:21,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123647863] [2021-10-28 23:31:21,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:31:21,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:21,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:31:21,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:31:21,088 INFO L87 Difference]: Start difference. First operand 6590 states and 6878 transitions. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:21,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:21,526 INFO L93 Difference]: Finished difference Result 14068 states and 14655 transitions. [2021-10-28 23:31:21,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:31:21,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1518 [2021-10-28 23:31:21,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:21,530 INFO L225 Difference]: With dead ends: 14068 [2021-10-28 23:31:21,530 INFO L226 Difference]: Without dead ends: 4276 [2021-10-28 23:31:21,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1521 GetRequests, 1517 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:31:21,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-10-28 23:31:21,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2021-10-28 23:31:21,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.0278362573099415) internal successors, (4394), 4275 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:21,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4394 transitions. [2021-10-28 23:31:21,575 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4394 transitions. Word has length 1518 [2021-10-28 23:31:21,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:21,576 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4394 transitions. [2021-10-28 23:31:21,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:21,577 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4394 transitions. [2021-10-28 23:31:21,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1840 [2021-10-28 23:31:21,606 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:21,607 INFO L513 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, 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, 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] [2021-10-28 23:31:21,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:21,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-28 23:31:21,820 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:21,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:21,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1181327325, now seen corresponding path program 1 times [2021-10-28 23:31:21,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:21,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602719990] [2021-10-28 23:31:21,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:21,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:22,784 INFO L134 CoverageAnalysis]: Checked inductivity of 11219 backedges. 6986 proven. 89 refuted. 0 times theorem prover too weak. 4144 trivial. 0 not checked. [2021-10-28 23:31:22,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:22,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602719990] [2021-10-28 23:31:22,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602719990] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:31:22,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826246668] [2021-10-28 23:31:22,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:22,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:31:22,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:22,786 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:31:22,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 23:31:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:26,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 2248 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:31:26,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 11219 backedges. 6341 proven. 0 refuted. 0 times theorem prover too weak. 4878 trivial. 0 not checked. [2021-10-28 23:31:30,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826246668] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:30,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:31:30,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-28 23:31:30,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046971977] [2021-10-28 23:31:30,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:31:30,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:30,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:31:30,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:31:30,130 INFO L87 Difference]: Start difference. First operand 4276 states and 4394 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:30,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:30,523 INFO L93 Difference]: Finished difference Result 7838 states and 8056 transitions. [2021-10-28 23:31:30,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:31:30,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 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 1839 [2021-10-28 23:31:30,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:30,529 INFO L225 Difference]: With dead ends: 7838 [2021-10-28 23:31:30,529 INFO L226 Difference]: Without dead ends: 3920 [2021-10-28 23:31:30,532 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1843 GetRequests, 1838 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:31:30,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-10-28 23:31:30,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2021-10-28 23:31:30,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.016330696606277) internal successors, (3983), 3919 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:30,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 3983 transitions. [2021-10-28 23:31:30,580 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 3983 transitions. Word has length 1839 [2021-10-28 23:31:30,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:30,582 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 3983 transitions. [2021-10-28 23:31:30,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:30,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 3983 transitions. [2021-10-28 23:31:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1900 [2021-10-28 23:31:30,613 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:30,614 INFO L513 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, 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, 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] [2021-10-28 23:31:30,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:30,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-28 23:31:30,837 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:30,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:30,838 INFO L85 PathProgramCache]: Analyzing trace with hash 437001199, now seen corresponding path program 1 times [2021-10-28 23:31:30,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:30,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789421874] [2021-10-28 23:31:30,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:30,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 11389 backedges. 6916 proven. 0 refuted. 0 times theorem prover too weak. 4473 trivial. 0 not checked. [2021-10-28 23:31:32,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:32,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789421874] [2021-10-28 23:31:32,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789421874] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:32,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:32,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:31:32,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516933029] [2021-10-28 23:31:32,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:31:32,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:32,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:31:32,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:31:32,037 INFO L87 Difference]: Start difference. First operand 3920 states and 3983 transitions. Second operand has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:32,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:32,701 INFO L93 Difference]: Finished difference Result 7124 states and 7247 transitions. [2021-10-28 23:31:32,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:31:32,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 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 1899 [2021-10-28 23:31:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:32,785 INFO L225 Difference]: With dead ends: 7124 [2021-10-28 23:31:32,785 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:31:32,786 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:31:32,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:31:32,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:31:32,786 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) [2021-10-28 23:31:32,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:31:32,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1899 [2021-10-28 23:31:32,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:32,787 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:31:32,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:31:32,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:31:32,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:31:32,789 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:31:32,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-28 23:31:32,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:31:32,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:31:33,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:31:33,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:31:36,188 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-28 23:31:36,188 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-28 23:31:36,189 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-28 23:31:36,189 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-28 23:31:36,189 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-28 23:31:36,189 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,189 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,189 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,189 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-28 23:31:36,189 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-28 23:31:36,190 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-28 23:31:36,190 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-28 23:31:36,190 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-28 23:31:36,191 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-28 23:31:36,192 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-28 23:31:36,193 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,193 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,193 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,193 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-28 23:31:36,193 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-28 23:31:36,195 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-28 23:31:36,195 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-28 23:31:36,195 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-28 23:31:36,195 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-28 23:31:36,195 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-28 23:31:36,195 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-28 23:31:36,195 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,195 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,195 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,195 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-28 23:31:36,196 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-28 23:31:36,197 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-28 23:31:36,197 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-28 23:31:36,198 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-28 23:31:36,198 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-28 23:31:36,198 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-28 23:31:36,198 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,198 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,198 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,199 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-28 23:31:36,199 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-28 23:31:36,199 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-28 23:31:36,199 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-28 23:31:36,199 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-28 23:31:36,199 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-28 23:31:36,199 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-28 23:31:36,200 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:31:36,200 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,200 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,200 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,200 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-28 23:31:36,200 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-28 23:31:36,201 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-28 23:31:36,201 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-28 23:31:36,201 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-28 23:31:36,201 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-28 23:31:36,201 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-28 23:31:36,201 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-28 23:31:36,202 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-28 23:31:36,202 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,202 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,202 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,202 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-28 23:31:36,202 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-28 23:31:36,202 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-28 23:31:36,203 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-28 23:31:36,203 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-28 23:31:36,203 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-28 23:31:36,203 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-28 23:31:36,203 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-28 23:31:36,203 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,204 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,204 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,205 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-28 23:31:36,205 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-28 23:31:36,205 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-28 23:31:36,205 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:31:36,205 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-28 23:31:36,206 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 170) no Hoare annotation was computed. [2021-10-28 23:31:36,206 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-28 23:31:36,206 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-28 23:31:36,206 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-28 23:31:36,206 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-28 23:31:36,206 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,207 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,208 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,209 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-28 23:31:36,209 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-28 23:31:36,209 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-28 23:31:36,209 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-28 23:31:36,209 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-28 23:31:36,209 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-28 23:31:36,210 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-28 23:31:36,210 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-28 23:31:36,210 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,210 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,210 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,210 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-28 23:31:36,211 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-28 23:31:36,211 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-28 23:31:36,211 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-28 23:31:36,211 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-28 23:31:36,211 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-28 23:31:36,211 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-28 23:31:36,211 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-28 23:31:36,212 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,212 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,212 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,212 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-28 23:31:36,212 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-28 23:31:36,212 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-28 23:31:36,213 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-28 23:31:36,213 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-28 23:31:36,213 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-28 23:31:36,213 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-28 23:31:36,213 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-28 23:31:36,213 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,214 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,214 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,214 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-28 23:31:36,214 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-28 23:31:36,214 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-28 23:31:36,214 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-28 23:31:36,214 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-28 23:31:36,215 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-28 23:31:36,215 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-28 23:31:36,215 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-28 23:31:36,215 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,215 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,215 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,216 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-28 23:31:36,216 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-28 23:31:36,216 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-28 23:31:36,216 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-28 23:31:36,216 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-28 23:31:36,216 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-28 23:31:36,216 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-28 23:31:36,217 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-28 23:31:36,217 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,217 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,217 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-28 23:31:36,217 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-28 23:31:36,217 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-28 23:31:36,218 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-28 23:31:36,218 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-28 23:31:36,218 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-28 23:31:36,218 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-28 23:31:36,218 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-28 23:31:36,218 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,219 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,219 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-28 23:31:36,219 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:31:36,219 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-28 23:31:36,219 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-28 23:31:36,219 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-28 23:31:36,219 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-28 23:31:36,220 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-28 23:31:36,220 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,220 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,220 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse23 (<= 8 ~a15~0)) (.cse16 (<= ~a15~0 8)) (.cse20 (= ~a21~0 6)) (.cse25 (+ ~a12~0 43))) (let ((.cse4 (<= ~a21~0 6)) (.cse18 (<= 9 ~a15~0)) (.cse24 (<= ~a12~0 73281)) (.cse12 (<= 7 ~a21~0)) (.cse15 (<= ~a12~0 11)) (.cse1 (<= 10 ~a21~0)) (.cse13 (<= 6 ~a15~0)) (.cse5 (<= ~a15~0 7)) (.cse17 (<= (+ 49 ~a12~0) 0)) (.cse22 (<= .cse25 0)) (.cse19 (= 5 ~a15~0)) (.cse21 (<= 9 ~a21~0)) (.cse8 (<= ~a12~0 75)) (.cse14 (or (and .cse16 .cse23) (and .cse16 (not .cse20)))) (.cse11 (< 0 .cse25)) (.cse0 (= ~a24~0 1)) (.cse9 (<= 8 ~a21~0)) (.cse10 (<= ~a21~0 8)) (.cse2 (<= 0 (+ ~a12~0 42))) (.cse3 (= ~a15~0 8))) (or (and .cse0 (<= ~a12~0 599997) .cse1 .cse2 .cse3) (and .cse4 .cse5 (exists ((v_~a12~0_443 Int)) (and (< 80 v_~a12~0_443) (< v_~a12~0_443 73282) (let ((.cse7 (div (* v_~a12~0_443 9) 10))) (let ((.cse6 (div (+ (- 562768) .cse7) 5))) (or (<= ~a12~0 .cse6) (and (<= ~a12~0 (+ .cse6 1)) (not (= (mod (+ 2 .cse7) 5) 0))))))))) (and .cse0 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse8 .cse5 .cse11) (and .cse13 .cse0 .cse5 .cse14) (and .cse15 .cse0 .cse11 .cse3) (and .cse13 .cse0 .cse16 .cse4 .cse11) (and .cse0 .cse17 .cse1 .cse3) (and .cse0 .cse18 (<= 81 ~a12~0)) (and .cse0 .cse19 .cse20 (<= 526013 ~a12~0)) (and (exists ((v_~a12~0_438 Int)) (and (<= (+ 558346 ~a12~0) (div (* v_~a12~0_438 9) 10)) (<= v_~a12~0_438 73282) (< 80 v_~a12~0_438))) .cse0 .cse18 .cse9 .cse10) (and .cse21 (<= ~a21~0 9) .cse22 .cse0 .cse16) (and .cse0 .cse1 (< (+ 60120 ~a12~0) 0) .cse23) (and .cse21 .cse24 .cse0 .cse5 .cse11) (and .cse24 .cse0 .cse14 .cse9 .cse10 .cse11) (and .cse0 .cse12 (<= ~a21~0 7) .cse17 .cse3) (and .cse15 .cse0 .cse1 .cse11) (and .cse13 .cse0 .cse5 .cse17) (and .cse22 .cse0 .cse19 .cse20) (and .cse21 .cse0 .cse8 .cse14 .cse11) (and (<= ~a12~0 73282) .cse0 .cse9 .cse10 .cse2 .cse3)))) [2021-10-28 23:31:36,221 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-28 23:31:36,221 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-28 23:31:36,221 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-28 23:31:36,221 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-28 23:31:36,221 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-28 23:31:36,221 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-28 23:31:36,222 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-28 23:31:36,222 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-28 23:31:36,222 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,222 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,222 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-28 23:31:36,222 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-28 23:31:36,223 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-28 23:31:36,223 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-28 23:31:36,223 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-28 23:31:36,224 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-28 23:31:36,224 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-28 23:31:36,224 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-28 23:31:36,224 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,224 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,224 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:31:36,225 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-28 23:31:36,225 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-28 23:31:36,225 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-28 23:31:36,225 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-28 23:31:36,225 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-28 23:31:36,225 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-28 23:31:36,226 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,226 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,226 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-28 23:31:36,226 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,226 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-28 23:31:36,227 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse23 (<= 8 ~a15~0)) (.cse16 (<= ~a15~0 8)) (.cse20 (= ~a21~0 6)) (.cse25 (+ ~a12~0 43))) (let ((.cse4 (<= ~a21~0 6)) (.cse18 (<= 9 ~a15~0)) (.cse24 (<= ~a12~0 73281)) (.cse12 (<= 7 ~a21~0)) (.cse15 (<= ~a12~0 11)) (.cse1 (<= 10 ~a21~0)) (.cse13 (<= 6 ~a15~0)) (.cse5 (<= ~a15~0 7)) (.cse17 (<= (+ 49 ~a12~0) 0)) (.cse22 (<= .cse25 0)) (.cse19 (= 5 ~a15~0)) (.cse21 (<= 9 ~a21~0)) (.cse8 (<= ~a12~0 75)) (.cse14 (or (and .cse16 .cse23) (and .cse16 (not .cse20)))) (.cse11 (< 0 .cse25)) (.cse0 (= ~a24~0 1)) (.cse9 (<= 8 ~a21~0)) (.cse10 (<= ~a21~0 8)) (.cse2 (<= 0 (+ ~a12~0 42))) (.cse3 (= ~a15~0 8))) (or (and .cse0 (<= ~a12~0 599997) .cse1 .cse2 .cse3) (and .cse4 .cse5 (exists ((v_~a12~0_443 Int)) (and (< 80 v_~a12~0_443) (< v_~a12~0_443 73282) (let ((.cse7 (div (* v_~a12~0_443 9) 10))) (let ((.cse6 (div (+ (- 562768) .cse7) 5))) (or (<= ~a12~0 .cse6) (and (<= ~a12~0 (+ .cse6 1)) (not (= (mod (+ 2 .cse7) 5) 0))))))))) (and .cse0 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse8 .cse5 .cse11) (and .cse13 .cse0 .cse5 .cse14) (and .cse15 .cse0 .cse11 .cse3) (and .cse13 .cse0 .cse16 .cse4 .cse11) (and .cse0 .cse17 .cse1 .cse3) (and .cse0 .cse18 (<= 81 ~a12~0)) (and .cse0 .cse19 .cse20 (<= 526013 ~a12~0)) (and (exists ((v_~a12~0_438 Int)) (and (<= (+ 558346 ~a12~0) (div (* v_~a12~0_438 9) 10)) (<= v_~a12~0_438 73282) (< 80 v_~a12~0_438))) .cse0 .cse18 .cse9 .cse10) (and .cse21 (<= ~a21~0 9) .cse22 .cse0 .cse16) (and .cse0 .cse1 (< (+ 60120 ~a12~0) 0) .cse23) (and .cse21 .cse24 .cse0 .cse5 .cse11) (and .cse24 .cse0 .cse14 .cse9 .cse10 .cse11) (and .cse0 .cse12 (<= ~a21~0 7) .cse17 .cse3) (and .cse15 .cse0 .cse1 .cse11) (and .cse13 .cse0 .cse5 .cse17) (and .cse22 .cse0 .cse19 .cse20) (and .cse21 .cse0 .cse8 .cse14 .cse11) (and (<= ~a12~0 73282) .cse0 .cse9 .cse10 .cse2 .cse3)))) [2021-10-28 23:31:36,227 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-28 23:31:36,227 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-28 23:31:36,227 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-28 23:31:36,227 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-28 23:31:36,228 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-28 23:31:36,228 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-28 23:31:36,228 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-28 23:31:36,228 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-28 23:31:36,228 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-28 23:31:36,228 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,229 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,229 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-28 23:31:36,229 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-28 23:31:36,229 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-28 23:31:36,229 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-28 23:31:36,229 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-28 23:31:36,233 INFO L731 BasicCegarLoop]: Path program 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] [2021-10-28 23:31:36,237 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:31:36,258 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,259 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,260 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,260 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,261 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,264 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,287 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,288 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,288 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,288 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,289 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,289 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,290 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,290 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,297 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,297 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,297 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,298 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,300 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,301 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,301 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,307 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,310 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,311 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,313 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,313 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,313 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,314 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:31:36 BoogieIcfgContainer [2021-10-28 23:31:36,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:31:36,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:31:36,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:31:36,320 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:31:36,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:29:56" (3/4) ... [2021-10-28 23:31:36,324 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:31:36,364 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 23:31:36,366 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:31:36,368 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:31:36,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:31:36,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((a24 == 1 && a12 <= 599997) && 10 <= a21) && 0 <= a12 + 42) && a15 == 8) || ((a21 <= 6 && a15 <= 7) && (\exists v_~a12~0_443 : int :: (80 < v_~a12~0_443 && v_~a12~0_443 < 73282) && (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)))))) || ((((a24 == 1 && a12 <= 75) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((((a24 == 1 && 7 <= a21) && a12 <= 75) && a15 <= 7) && 0 < a12 + 43)) || (((6 <= a15 && a24 == 1) && a15 <= 7) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6))))) || (((a12 <= 11 && a24 == 1) && 0 < a12 + 43) && a15 == 8)) || ((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43)) || (((a24 == 1 && 49 + a12 <= 0) && 10 <= a21) && a15 == 8)) || ((a24 == 1 && 9 <= a15) && 81 <= a12)) || (((a24 == 1 && 5 == a15) && a21 == 6) && 526013 <= a12)) || (((((\exists v_~a12~0_438 : int :: (558346 + a12 <= v_~a12~0_438 * 9 / 10 && v_~a12~0_438 <= 73282) && 80 < v_~a12~0_438) && a24 == 1) && 9 <= a15) && 8 <= a21) && a21 <= 8)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a24 == 1 && 10 <= a21) && 60120 + a12 < 0) && 8 <= a15)) || ((((9 <= a21 && a12 <= 73281) && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((((a12 <= 73281 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && 0 < a12 + 43)) || (((6 <= a15 && a24 == 1) && a15 <= 7) && 49 + a12 <= 0)) || (((a12 + 43 <= 0 && a24 == 1) && 5 == a15) && a21 == 6)) || ((((9 <= a21 && a24 == 1) && a12 <= 75) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 0 < a12 + 43)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8) [2021-10-28 23:31:36,418 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((a24 == 1 && a12 <= 599997) && 10 <= a21) && 0 <= a12 + 42) && a15 == 8) || ((a21 <= 6 && a15 <= 7) && (\exists v_~a12~0_443 : int :: (80 < v_~a12~0_443 && v_~a12~0_443 < 73282) && (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)))))) || ((((a24 == 1 && a12 <= 75) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((((a24 == 1 && 7 <= a21) && a12 <= 75) && a15 <= 7) && 0 < a12 + 43)) || (((6 <= a15 && a24 == 1) && a15 <= 7) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6))))) || (((a12 <= 11 && a24 == 1) && 0 < a12 + 43) && a15 == 8)) || ((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43)) || (((a24 == 1 && 49 + a12 <= 0) && 10 <= a21) && a15 == 8)) || ((a24 == 1 && 9 <= a15) && 81 <= a12)) || (((a24 == 1 && 5 == a15) && a21 == 6) && 526013 <= a12)) || (((((\exists v_~a12~0_438 : int :: (558346 + a12 <= v_~a12~0_438 * 9 / 10 && v_~a12~0_438 <= 73282) && 80 < v_~a12~0_438) && a24 == 1) && 9 <= a15) && 8 <= a21) && a21 <= 8)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a24 == 1 && 10 <= a21) && 60120 + a12 < 0) && 8 <= a15)) || ((((9 <= a21 && a12 <= 73281) && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((((a12 <= 73281 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && 0 < a12 + 43)) || (((6 <= a15 && a24 == 1) && a15 <= 7) && 49 + a12 <= 0)) || (((a12 + 43 <= 0 && a24 == 1) && 5 == a15) && a21 == 6)) || ((((9 <= a21 && a24 == 1) && a12 <= 75) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 0 < a12 + 43)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8) [2021-10-28 23:31:36,545 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:31:36,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:31:36,548 INFO L168 Benchmark]: Toolchain (without parser) took 102874.06 ms. Allocated memory was 94.4 MB in the beginning and 3.5 GB in the end (delta: 3.4 GB). Free memory was 49.8 MB in the beginning and 2.7 GB in the end (delta: -2.6 GB). Peak memory consumption was 758.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:36,548 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:31:36,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.14 ms. Allocated memory is still 94.4 MB. Free memory was 71.9 MB in the beginning and 45.4 MB in the end (delta: 26.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:36,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 196.08 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 45.4 MB in the beginning and 84.5 MB in the end (delta: -39.1 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:36,550 INFO L168 Benchmark]: Boogie Preprocessor took 150.31 ms. Allocated memory is still 113.2 MB. Free memory was 84.4 MB in the beginning and 80.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:36,550 INFO L168 Benchmark]: RCFGBuilder took 1833.31 ms. Allocated memory is still 113.2 MB. Free memory was 80.0 MB in the beginning and 46.3 MB in the end (delta: 33.7 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:36,551 INFO L168 Benchmark]: TraceAbstraction took 99591.13 ms. Allocated memory was 113.2 MB in the beginning and 3.5 GB in the end (delta: 3.4 GB). Free memory was 45.7 MB in the beginning and 2.7 GB in the end (delta: -2.6 GB). Peak memory consumption was 773.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:36,551 INFO L168 Benchmark]: Witness Printer took 226.22 ms. Allocated memory is still 3.5 GB. Free memory was 2.7 GB in the beginning and 2.7 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:36,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 848.14 ms. Allocated memory is still 94.4 MB. Free memory was 71.9 MB in the beginning and 45.4 MB in the end (delta: 26.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 196.08 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 45.4 MB in the beginning and 84.5 MB in the end (delta: -39.1 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 150.31 ms. Allocated memory is still 113.2 MB. Free memory was 84.4 MB in the beginning and 80.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1833.31 ms. Allocated memory is still 113.2 MB. Free memory was 80.0 MB in the beginning and 46.3 MB in the end (delta: 33.7 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 99591.13 ms. Allocated memory was 113.2 MB in the beginning and 3.5 GB in the end (delta: 3.4 GB). Free memory was 45.7 MB in the beginning and 2.7 GB in the end (delta: -2.6 GB). Peak memory consumption was 773.3 MB. Max. memory is 16.1 GB. * Witness Printer took 226.22 ms. Allocated memory is still 3.5 GB. Free memory was 2.7 GB in the beginning and 2.7 GB 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_438,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,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_438,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,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_438,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,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_438,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 170]: 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: 99.4s, OverallIterations: 26, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 26.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2621 SDtfs, 5014 SDslu, 325 SDs, 0 SdLazy, 24738 SolverSat, 2012 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10349 GetRequests, 10251 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7302occurred in iteration=19, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 26 MinimizatonAttempts, 8927 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 108 NumberOfFragments, 871 HoareAnnotationTreeSize, 3 FomulaSimplifications, 56384 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 3 FomulaSimplificationsInter, 29766 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 43.8s InterpolantComputationTime, 30693 NumberOfCodeBlocks, 30693 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 30655 ConstructedInterpolants, 150 QuantifiedInterpolants, 97887 SizeOfPredicates, 6 NumberOfNonLiveVariables, 12915 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 38 InterpolantComputations, 22 PerfectInterpolantSequences, 101602/105628 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 [2021-10-28 23:31:36,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,574 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,574 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,574 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,574 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,576 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,576 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,576 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,577 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,578 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((((a24 == 1 && a12 <= 599997) && 10 <= a21) && 0 <= a12 + 42) && a15 == 8) || ((a21 <= 6 && a15 <= 7) && (\exists v_~a12~0_443 : int :: (80 < v_~a12~0_443 && v_~a12~0_443 < 73282) && (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)))))) || ((((a24 == 1 && a12 <= 75) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((((a24 == 1 && 7 <= a21) && a12 <= 75) && a15 <= 7) && 0 < a12 + 43)) || (((6 <= a15 && a24 == 1) && a15 <= 7) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6))))) || (((a12 <= 11 && a24 == 1) && 0 < a12 + 43) && a15 == 8)) || ((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43)) || (((a24 == 1 && 49 + a12 <= 0) && 10 <= a21) && a15 == 8)) || ((a24 == 1 && 9 <= a15) && 81 <= a12)) || (((a24 == 1 && 5 == a15) && a21 == 6) && 526013 <= a12)) || (((((\exists v_~a12~0_438 : int :: (558346 + a12 <= v_~a12~0_438 * 9 / 10 && v_~a12~0_438 <= 73282) && 80 < v_~a12~0_438) && a24 == 1) && 9 <= a15) && 8 <= a21) && a21 <= 8)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a24 == 1 && 10 <= a21) && 60120 + a12 < 0) && 8 <= a15)) || ((((9 <= a21 && a12 <= 73281) && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((((a12 <= 73281 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && 0 < a12 + 43)) || (((6 <= a15 && a24 == 1) && a15 <= 7) && 49 + a12 <= 0)) || (((a12 + 43 <= 0 && a24 == 1) && 5 == a15) && a21 == 6)) || ((((9 <= a21 && a24 == 1) && a12 <= 75) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 0 < a12 + 43)) || (((((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 [2021-10-28 23:31:36,579 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,579 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_443,QUANTIFIED] [2021-10-28 23:31:36,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] [2021-10-28 23:31:36,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_438,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((((a24 == 1 && a12 <= 599997) && 10 <= a21) && 0 <= a12 + 42) && a15 == 8) || ((a21 <= 6 && a15 <= 7) && (\exists v_~a12~0_443 : int :: (80 < v_~a12~0_443 && v_~a12~0_443 < 73282) && (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)))))) || ((((a24 == 1 && a12 <= 75) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((((a24 == 1 && 7 <= a21) && a12 <= 75) && a15 <= 7) && 0 < a12 + 43)) || (((6 <= a15 && a24 == 1) && a15 <= 7) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6))))) || (((a12 <= 11 && a24 == 1) && 0 < a12 + 43) && a15 == 8)) || ((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43)) || (((a24 == 1 && 49 + a12 <= 0) && 10 <= a21) && a15 == 8)) || ((a24 == 1 && 9 <= a15) && 81 <= a12)) || (((a24 == 1 && 5 == a15) && a21 == 6) && 526013 <= a12)) || (((((\exists v_~a12~0_438 : int :: (558346 + a12 <= v_~a12~0_438 * 9 / 10 && v_~a12~0_438 <= 73282) && 80 < v_~a12~0_438) && a24 == 1) && 9 <= a15) && 8 <= a21) && a21 <= 8)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a24 == 1 && 10 <= a21) && 60120 + a12 < 0) && 8 <= a15)) || ((((9 <= a21 && a12 <= 73281) && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((((a12 <= 73281 && a24 == 1) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && 0 < a12 + 43)) || (((6 <= a15 && a24 == 1) && a15 <= 7) && 49 + a12 <= 0)) || (((a12 + 43 <= 0 && a24 == 1) && 5 == a15) && a21 == 6)) || ((((9 <= a21 && a24 == 1) && a12 <= 75) && ((a15 <= 8 && 8 <= a15) || (a15 <= 8 && !(a21 == 6)))) && 0 < a12 + 43)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8) RESULT: Ultimate proved your program to be correct! [2021-10-28 23:31:36,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e863a4-51e0-499b-9dc8-77853b88762d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...