./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa --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 d4466c84cf3346dae2c632daaf2229efd1401f42fa973f4243eec5185ec47b02 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:50:12,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:50:12,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:50:12,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:50:12,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:50:12,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:50:12,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:50:12,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:50:12,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:50:12,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:50:12,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:50:12,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:50:12,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:50:12,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:50:12,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:50:12,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:50:12,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:50:12,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:50:12,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:50:12,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:50:12,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:50:12,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:50:12,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:50:12,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:50:12,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:50:12,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:50:12,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:50:12,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:50:12,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:50:12,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:50:12,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:50:12,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:50:12,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:50:12,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:50:12,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:50:12,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:50:12,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:50:12,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:50:12,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:50:12,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:50:12,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:50:12,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 20:50:12,630 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:50:12,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:50:12,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:50:12,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:50:12,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:50:12,632 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:50:12,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:50:12,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:50:12,632 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:50:12,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:50:12,633 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:50:12,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:50:12,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:50:12,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:50:12,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:50:12,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:50:12,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:50:12,634 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:50:12,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:50:12,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:50:12,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:50:12,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:50:12,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:50:12,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:50:12,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:50:12,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:50:12,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:50:12,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:50:12,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:50:12,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:50:12,636 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:50:12,636 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:50:12,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:50:12,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:50:12,636 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_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4466c84cf3346dae2c632daaf2229efd1401f42fa973f4243eec5185ec47b02 [2021-12-06 20:50:12,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:50:12,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:50:12,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:50:12,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:50:12,832 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:50:12,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2021-12-06 20:50:12,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/data/963ff0f3f/4b459780a14b45cb925517b4c97b0b47/FLAG4b47ee01d [2021-12-06 20:50:13,302 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:50:13,302 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2021-12-06 20:50:13,313 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/data/963ff0f3f/4b459780a14b45cb925517b4c97b0b47/FLAG4b47ee01d [2021-12-06 20:50:13,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/data/963ff0f3f/4b459780a14b45cb925517b4c97b0b47 [2021-12-06 20:50:13,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:50:13,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:50:13,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:50:13,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:50:13,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:50:13,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5a12ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13, skipping insertion in model container [2021-12-06 20:50:13,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:50:13,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:50:13,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2021-12-06 20:50:13,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:50:13,656 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:50:13,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2021-12-06 20:50:13,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:50:13,753 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:50:13,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13 WrapperNode [2021-12-06 20:50:13,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:50:13,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:50:13,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:50:13,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:50:13,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,830 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-12-06 20:50:13,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:50:13,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:50:13,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:50:13,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:50:13,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:50:13,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:50:13,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:50:13,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:50:13,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (1/1) ... [2021-12-06 20:50:13,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:50:13,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:50:13,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:50:13,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:50:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:50:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:50:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:50:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:50:14,038 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:50:14,039 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:50:14,797 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:50:14,813 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:50:14,813 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 20:50:14,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:50:14 BoogieIcfgContainer [2021-12-06 20:50:14,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:50:14,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:50:14,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:50:14,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:50:14,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:50:13" (1/3) ... [2021-12-06 20:50:14,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251d3e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:50:14, skipping insertion in model container [2021-12-06 20:50:14,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:50:13" (2/3) ... [2021-12-06 20:50:14,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251d3e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:50:14, skipping insertion in model container [2021-12-06 20:50:14,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:50:14" (3/3) ... [2021-12-06 20:50:14,821 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2021-12-06 20:50:14,825 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:50:14,825 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:50:14,860 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:50:14,866 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 [2021-12-06 20:50:14,866 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:50:14,883 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) [2021-12-06 20:50:14,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 20:50:14,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:14,890 INFO L514 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] [2021-12-06 20:50:14,890 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:14,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:14,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2021-12-06 20:50:14,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:14,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78065963] [2021-12-06 20:50:14,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:14,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:15,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:50:15,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:15,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78065963] [2021-12-06 20:50:15,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78065963] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:15,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:50:15,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:50:15,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131736804] [2021-12-06 20:50:15,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:15,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:15,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:15,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:15,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:50:15,099 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 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:15,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:15,648 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-12-06 20:50:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:15,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-12-06 20:50:15,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:15,659 INFO L225 Difference]: With dead ends: 669 [2021-12-06 20:50:15,660 INFO L226 Difference]: Without dead ends: 360 [2021-12-06 20:50:15,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:50:15,665 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 159 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:15,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 94 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 20:50:15,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-06 20:50:15,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-12-06 20:50:15,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:15,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2021-12-06 20:50:15,718 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 51 [2021-12-06 20:50:15,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:15,719 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2021-12-06 20:50:15,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:15,719 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2021-12-06 20:50:15,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-06 20:50:15,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:15,724 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:15,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:50:15,725 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:15,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:15,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1080800965, now seen corresponding path program 1 times [2021-12-06 20:50:15,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:15,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278223278] [2021-12-06 20:50:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:15,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:50:15,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:15,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278223278] [2021-12-06 20:50:15,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278223278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:15,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:50:15,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:50:15,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573620814] [2021-12-06 20:50:15,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:15,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:15,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:15,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:15,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:50:15,856 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:16,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:16,312 INFO L93 Difference]: Finished difference Result 1076 states and 1634 transitions. [2021-12-06 20:50:16,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:16,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2021-12-06 20:50:16,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:16,317 INFO L225 Difference]: With dead ends: 1076 [2021-12-06 20:50:16,317 INFO L226 Difference]: Without dead ends: 718 [2021-12-06 20:50:16,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:50:16,320 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 124 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:16,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 96 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 20:50:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-12-06 20:50:16,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 716. [2021-12-06 20:50:16,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.3552447552447553) internal successors, (969), 715 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:16,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 969 transitions. [2021-12-06 20:50:16,353 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 969 transitions. Word has length 126 [2021-12-06 20:50:16,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:16,353 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 969 transitions. [2021-12-06 20:50:16,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:16,354 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 969 transitions. [2021-12-06 20:50:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-06 20:50:16,357 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:16,357 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:16,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:50:16,358 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:16,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1002073487, now seen corresponding path program 1 times [2021-12-06 20:50:16,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:16,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374998331] [2021-12-06 20:50:16,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:16,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:16,498 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:50:16,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:16,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374998331] [2021-12-06 20:50:16,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374998331] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:16,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:50:16,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:50:16,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100784857] [2021-12-06 20:50:16,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:16,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:50:16,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:16,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:50:16,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:50:16,501 INFO L87 Difference]: Start difference. First operand 716 states and 969 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:17,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:17,169 INFO L93 Difference]: Finished difference Result 1966 states and 2575 transitions. [2021-12-06 20:50:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:50:17,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2021-12-06 20:50:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:17,174 INFO L225 Difference]: With dead ends: 1966 [2021-12-06 20:50:17,174 INFO L226 Difference]: Without dead ends: 1252 [2021-12-06 20:50:17,175 INFO L932 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 [2021-12-06 20:50:17,176 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 420 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:17,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 123 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 20:50:17,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2021-12-06 20:50:17,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2021-12-06 20:50:17,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.2377902321857486) internal successors, (1546), 1249 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:17,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1546 transitions. [2021-12-06 20:50:17,201 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1546 transitions. Word has length 130 [2021-12-06 20:50:17,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:17,201 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1546 transitions. [2021-12-06 20:50:17,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:17,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1546 transitions. [2021-12-06 20:50:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-12-06 20:50:17,204 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:17,204 INFO L514 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, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-06 20:50:17,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:50:17,205 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:17,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:17,205 INFO L85 PathProgramCache]: Analyzing trace with hash 313256988, now seen corresponding path program 1 times [2021-12-06 20:50:17,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:17,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588747415] [2021-12-06 20:50:17,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:17,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:17,291 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 20:50:17,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:17,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588747415] [2021-12-06 20:50:17,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588747415] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:17,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:50:17,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:50:17,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220073270] [2021-12-06 20:50:17,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:17,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:50:17,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:17,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:50:17,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:50:17,294 INFO L87 Difference]: Start difference. First operand 1250 states and 1546 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:17,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:17,824 INFO L93 Difference]: Finished difference Result 2707 states and 3359 transitions. [2021-12-06 20:50:17,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:50:17,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 210 [2021-12-06 20:50:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:17,834 INFO L225 Difference]: With dead ends: 2707 [2021-12-06 20:50:17,834 INFO L226 Difference]: Without dead ends: 1608 [2021-12-06 20:50:17,836 INFO L932 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 [2021-12-06 20:50:17,838 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 120 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:17,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 121 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 20:50:17,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2021-12-06 20:50:17,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2021-12-06 20:50:17,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.12398753894081) internal successors, (1804), 1605 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:17,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1804 transitions. [2021-12-06 20:50:17,876 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1804 transitions. Word has length 210 [2021-12-06 20:50:17,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:17,876 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1804 transitions. [2021-12-06 20:50:17,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:17,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1804 transitions. [2021-12-06 20:50:17,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-12-06 20:50:17,880 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:17,880 INFO L514 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:17,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 20:50:17,881 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:17,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:17,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1682054282, now seen corresponding path program 1 times [2021-12-06 20:50:17,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:17,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800072139] [2021-12-06 20:50:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:17,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:18,017 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 194 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-06 20:50:18,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:18,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800072139] [2021-12-06 20:50:18,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800072139] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:50:18,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971123016] [2021-12-06 20:50:18,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:18,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:18,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:50:18,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:50:18,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 20:50:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:18,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:50:18,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:50:18,516 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-12-06 20:50:18,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:50:18,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971123016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:18,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:50:18,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-12-06 20:50:18,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521779976] [2021-12-06 20:50:18,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:18,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:18,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:18,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:50:18,518 INFO L87 Difference]: Start difference. First operand 1606 states and 1804 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:18,837 INFO L93 Difference]: Finished difference Result 3388 states and 3907 transitions. [2021-12-06 20:50:18,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:18,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 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 337 [2021-12-06 20:50:18,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:18,845 INFO L225 Difference]: With dead ends: 3388 [2021-12-06 20:50:18,845 INFO L226 Difference]: Without dead ends: 1962 [2021-12-06 20:50:18,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:50:18,848 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:18,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:50:18,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-12-06 20:50:18,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-12-06 20:50:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.122386537480877) internal successors, (2201), 1961 states have internal predecessors, (2201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:18,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2201 transitions. [2021-12-06 20:50:18,886 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2201 transitions. Word has length 337 [2021-12-06 20:50:18,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:18,886 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2201 transitions. [2021-12-06 20:50:18,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:18,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2201 transitions. [2021-12-06 20:50:18,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-12-06 20:50:18,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:18,890 INFO L514 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:18,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:50:19,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:19,091 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:19,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:19,092 INFO L85 PathProgramCache]: Analyzing trace with hash 514746580, now seen corresponding path program 1 times [2021-12-06 20:50:19,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:19,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765402539] [2021-12-06 20:50:19,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:19,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:19,217 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-06 20:50:19,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:19,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765402539] [2021-12-06 20:50:19,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765402539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:19,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:50:19,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:50:19,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535039423] [2021-12-06 20:50:19,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:19,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:19,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:19,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:19,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:50:19,220 INFO L87 Difference]: Start difference. First operand 1962 states and 2201 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:19,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:19,546 INFO L93 Difference]: Finished difference Result 4100 states and 4648 transitions. [2021-12-06 20:50:19,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:19,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 341 [2021-12-06 20:50:19,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:19,558 INFO L225 Difference]: With dead ends: 4100 [2021-12-06 20:50:19,558 INFO L226 Difference]: Without dead ends: 2318 [2021-12-06 20:50:19,560 INFO L932 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 [2021-12-06 20:50:19,561 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 101 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:19,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 77 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:50:19,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-12-06 20:50:19,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2021-12-06 20:50:19,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.1204143288735433) internal successors, (2596), 2317 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2596 transitions. [2021-12-06 20:50:19,611 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2596 transitions. Word has length 341 [2021-12-06 20:50:19,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:19,612 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2596 transitions. [2021-12-06 20:50:19,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:19,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2596 transitions. [2021-12-06 20:50:19,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-12-06 20:50:19,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:19,617 INFO L514 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 20:50:19,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 20:50:19,617 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:19,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:19,617 INFO L85 PathProgramCache]: Analyzing trace with hash -591060880, now seen corresponding path program 1 times [2021-12-06 20:50:19,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:19,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854589559] [2021-12-06 20:50:19,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:19,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:19,748 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-12-06 20:50:19,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:19,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854589559] [2021-12-06 20:50:19,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854589559] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:50:19,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256573257] [2021-12-06 20:50:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:19,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:19,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:50:19,750 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:50:19,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 20:50:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:19,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:50:19,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:50:20,257 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2021-12-06 20:50:20,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:50:20,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256573257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:20,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:50:20,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-06 20:50:20,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221396811] [2021-12-06 20:50:20,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:20,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:20,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:20,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:20,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:50:20,259 INFO L87 Difference]: Start difference. First operand 2318 states and 2596 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:20,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:20,610 INFO L93 Difference]: Finished difference Result 2854 states and 3202 transitions. [2021-12-06 20:50:20,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:20,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 368 [2021-12-06 20:50:20,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:20,620 INFO L225 Difference]: With dead ends: 2854 [2021-12-06 20:50:20,621 INFO L226 Difference]: Without dead ends: 2852 [2021-12-06 20:50:20,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:50:20,622 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 90 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:20,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 24 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:50:20,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-12-06 20:50:20,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2496. [2021-12-06 20:50:20,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.1254509018036072) internal successors, (2808), 2495 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:20,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2808 transitions. [2021-12-06 20:50:20,659 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2808 transitions. Word has length 368 [2021-12-06 20:50:20,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:20,660 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2808 transitions. [2021-12-06 20:50:20,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:20,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2808 transitions. [2021-12-06 20:50:20,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-12-06 20:50:20,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:20,663 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-06 20:50:20,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 20:50:20,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 20:50:20,864 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:20,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:20,865 INFO L85 PathProgramCache]: Analyzing trace with hash 262542689, now seen corresponding path program 1 times [2021-12-06 20:50:20,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:20,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368800563] [2021-12-06 20:50:20,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:20,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2021-12-06 20:50:21,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:21,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368800563] [2021-12-06 20:50:21,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368800563] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:21,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:50:21,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:50:21,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256028618] [2021-12-06 20:50:21,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:21,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:50:21,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:21,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:50:21,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:50:21,051 INFO L87 Difference]: Start difference. First operand 2496 states and 2808 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:21,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:21,489 INFO L93 Difference]: Finished difference Result 5048 states and 5689 transitions. [2021-12-06 20:50:21,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:50:21,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 421 [2021-12-06 20:50:21,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:21,499 INFO L225 Difference]: With dead ends: 5048 [2021-12-06 20:50:21,499 INFO L226 Difference]: Without dead ends: 2674 [2021-12-06 20:50:21,501 INFO L932 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 [2021-12-06 20:50:21,501 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:21,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 17 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 20:50:21,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-12-06 20:50:21,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2021-12-06 20:50:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0849699398797594) internal successors, (2707), 2495 states have internal predecessors, (2707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:21,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2707 transitions. [2021-12-06 20:50:21,533 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2707 transitions. Word has length 421 [2021-12-06 20:50:21,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:21,533 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2707 transitions. [2021-12-06 20:50:21,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:21,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2707 transitions. [2021-12-06 20:50:21,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-12-06 20:50:21,536 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:21,536 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:21,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 20:50:21,537 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:21,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:21,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1515068160, now seen corresponding path program 2 times [2021-12-06 20:50:21,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:21,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844753463] [2021-12-06 20:50:21,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:21,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 445 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-06 20:50:21,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:21,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844753463] [2021-12-06 20:50:21,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844753463] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:50:21,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034674240] [2021-12-06 20:50:21,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:50:21,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:21,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:50:21,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:50:21,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 20:50:21,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:50:21,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:50:21,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:50:21,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:50:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-06 20:50:22,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:50:22,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034674240] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:22,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:50:22,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-12-06 20:50:22,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467524971] [2021-12-06 20:50:22,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:22,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:50:22,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:22,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:50:22,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:50:22,560 INFO L87 Difference]: Start difference. First operand 2496 states and 2707 transitions. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:23,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:23,058 INFO L93 Difference]: Finished difference Result 5938 states and 6502 transitions. [2021-12-06 20:50:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:50:23,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 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 447 [2021-12-06 20:50:23,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:23,070 INFO L225 Difference]: With dead ends: 5938 [2021-12-06 20:50:23,070 INFO L226 Difference]: Without dead ends: 3622 [2021-12-06 20:50:23,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:50:23,072 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 402 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:23,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 15 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 20:50:23,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2021-12-06 20:50:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3030. [2021-12-06 20:50:23,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.0746120831957742) internal successors, (3255), 3029 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3255 transitions. [2021-12-06 20:50:23,115 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3255 transitions. Word has length 447 [2021-12-06 20:50:23,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:23,116 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3255 transitions. [2021-12-06 20:50:23,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:23,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3255 transitions. [2021-12-06 20:50:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-12-06 20:50:23,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:23,119 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:23,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 20:50:23,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:23,320 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:23,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:23,322 INFO L85 PathProgramCache]: Analyzing trace with hash 284431623, now seen corresponding path program 1 times [2021-12-06 20:50:23,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:23,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129651851] [2021-12-06 20:50:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:23,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:23,475 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-06 20:50:23,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:23,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129651851] [2021-12-06 20:50:23,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129651851] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:23,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:50:23,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:50:23,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555695224] [2021-12-06 20:50:23,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:23,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:23,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:23,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:23,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:50:23,476 INFO L87 Difference]: Start difference. First operand 3030 states and 3255 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) [2021-12-06 20:50:23,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:23,783 INFO L93 Difference]: Finished difference Result 6414 states and 6969 transitions. [2021-12-06 20:50:23,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:23,783 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 454 [2021-12-06 20:50:23,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:23,801 INFO L225 Difference]: With dead ends: 6414 [2021-12-06 20:50:23,801 INFO L226 Difference]: Without dead ends: 3564 [2021-12-06 20:50:23,802 INFO L932 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 [2021-12-06 20:50:23,803 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 103 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:23,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 220 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:50:23,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-12-06 20:50:23,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-12-06 20:50:23,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0792017461802308) internal successors, (3461), 3207 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:23,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3461 transitions. [2021-12-06 20:50:23,838 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3461 transitions. Word has length 454 [2021-12-06 20:50:23,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:23,839 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3461 transitions. [2021-12-06 20:50:23,839 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) [2021-12-06 20:50:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3461 transitions. [2021-12-06 20:50:23,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2021-12-06 20:50:23,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:23,844 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-12-06 20:50:23,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 20:50:23,845 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:23,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:23,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1246091326, now seen corresponding path program 1 times [2021-12-06 20:50:23,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:23,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095403141] [2021-12-06 20:50:23,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:23,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 445 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-06 20:50:24,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:24,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095403141] [2021-12-06 20:50:24,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095403141] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:50:24,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340777129] [2021-12-06 20:50:24,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:24,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:24,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:50:24,050 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:50:24,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 20:50:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:24,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:50:24,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:50:24,533 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-12-06 20:50:24,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:50:24,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340777129] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:24,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:50:24,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-06 20:50:24,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100229082] [2021-12-06 20:50:24,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:24,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:24,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:24,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:24,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:50:24,535 INFO L87 Difference]: Start difference. First operand 3208 states and 3461 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:24,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:24,805 INFO L93 Difference]: Finished difference Result 4100 states and 4406 transitions. [2021-12-06 20:50:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:24,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 499 [2021-12-06 20:50:24,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:24,819 INFO L225 Difference]: With dead ends: 4100 [2021-12-06 20:50:24,819 INFO L226 Difference]: Without dead ends: 4098 [2021-12-06 20:50:24,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:50:24,820 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 151 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:24,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 11 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:50:24,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-12-06 20:50:24,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3208. [2021-12-06 20:50:24,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0792017461802308) internal successors, (3461), 3207 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3461 transitions. [2021-12-06 20:50:24,861 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3461 transitions. Word has length 499 [2021-12-06 20:50:24,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:24,862 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3461 transitions. [2021-12-06 20:50:24,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:24,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3461 transitions. [2021-12-06 20:50:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2021-12-06 20:50:24,872 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:24,872 INFO L514 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-12-06 20:50:24,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 20:50:25,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 20:50:25,074 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:25,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:25,076 INFO L85 PathProgramCache]: Analyzing trace with hash 324332960, now seen corresponding path program 1 times [2021-12-06 20:50:25,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:25,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065912881] [2021-12-06 20:50:25,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:25,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:25,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 924 proven. 195 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-12-06 20:50:25,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:25,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065912881] [2021-12-06 20:50:25,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065912881] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:50:25,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085136394] [2021-12-06 20:50:25,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:25,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:25,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:50:25,330 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:50:25,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 20:50:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:25,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:50:25,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:50:25,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-06 20:50:25,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:50:25,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085136394] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:25,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:50:25,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-06 20:50:25,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109773422] [2021-12-06 20:50:25,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:25,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:25,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:25,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:25,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:50:25,854 INFO L87 Difference]: Start difference. First operand 3208 states and 3461 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:26,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:26,169 INFO L93 Difference]: Finished difference Result 7126 states and 7763 transitions. [2021-12-06 20:50:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:26,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 [2021-12-06 20:50:26,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:26,185 INFO L225 Difference]: With dead ends: 7126 [2021-12-06 20:50:26,185 INFO L226 Difference]: Without dead ends: 4276 [2021-12-06 20:50:26,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:50:26,188 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 140 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:26,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 216 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:50:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-12-06 20:50:26,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2021-12-06 20:50:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0778618501342445) internal successors, (4416), 4097 states have internal predecessors, (4416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:26,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4416 transitions. [2021-12-06 20:50:26,232 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4416 transitions. Word has length 641 [2021-12-06 20:50:26,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:26,233 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4416 transitions. [2021-12-06 20:50:26,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:26,233 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4416 transitions. [2021-12-06 20:50:26,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2021-12-06 20:50:26,243 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:26,244 INFO L514 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-12-06 20:50:26,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 20:50:26,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 20:50:26,446 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:26,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:26,448 INFO L85 PathProgramCache]: Analyzing trace with hash -316771125, now seen corresponding path program 1 times [2021-12-06 20:50:26,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:26,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272323756] [2021-12-06 20:50:26,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:26,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 1005 proven. 195 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-12-06 20:50:26,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:26,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272323756] [2021-12-06 20:50:26,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272323756] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:50:26,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125296523] [2021-12-06 20:50:26,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:26,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:26,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:50:26,652 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:50:26,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 20:50:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:26,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:50:26,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:50:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 905 proven. 0 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2021-12-06 20:50:28,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:50:28,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125296523] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:28,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:50:28,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-06 20:50:28,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654983750] [2021-12-06 20:50:28,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:28,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:50:28,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:28,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:50:28,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:50:28,460 INFO L87 Difference]: Start difference. First operand 4098 states and 4416 transitions. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:28,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:28,809 INFO L93 Difference]: Finished difference Result 8103 states and 8747 transitions. [2021-12-06 20:50:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:50:28,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 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 671 [2021-12-06 20:50:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:28,815 INFO L225 Difference]: With dead ends: 8103 [2021-12-06 20:50:28,815 INFO L226 Difference]: Without dead ends: 4363 [2021-12-06 20:50:28,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:50:28,819 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 84 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:28,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 51 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:50:28,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4363 states. [2021-12-06 20:50:28,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4363 to 4098. [2021-12-06 20:50:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.070539419087137) internal successors, (4386), 4097 states have internal predecessors, (4386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:28,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4386 transitions. [2021-12-06 20:50:28,859 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4386 transitions. Word has length 671 [2021-12-06 20:50:28,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:28,860 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4386 transitions. [2021-12-06 20:50:28,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:28,860 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4386 transitions. [2021-12-06 20:50:28,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2021-12-06 20:50:28,866 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:28,866 INFO L514 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:28,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 20:50:29,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:29,068 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:29,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:29,070 INFO L85 PathProgramCache]: Analyzing trace with hash -590297812, now seen corresponding path program 1 times [2021-12-06 20:50:29,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:29,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125338873] [2021-12-06 20:50:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:29,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 966 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-12-06 20:50:29,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:29,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125338873] [2021-12-06 20:50:29,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125338873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:29,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:50:29,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:50:29,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654948964] [2021-12-06 20:50:29,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:29,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:29,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:29,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:29,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:50:29,244 INFO L87 Difference]: Start difference. First operand 4098 states and 4386 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) [2021-12-06 20:50:29,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:29,531 INFO L93 Difference]: Finished difference Result 8550 states and 9211 transitions. [2021-12-06 20:50:29,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:29,532 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 675 [2021-12-06 20:50:29,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:29,538 INFO L225 Difference]: With dead ends: 8550 [2021-12-06 20:50:29,538 INFO L226 Difference]: Without dead ends: 4810 [2021-12-06 20:50:29,541 INFO L932 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 [2021-12-06 20:50:29,541 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:29,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 56 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:50:29,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-12-06 20:50:29,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2021-12-06 20:50:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0663339571636514) internal successors, (5128), 4809 states have internal predecessors, (5128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:29,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5128 transitions. [2021-12-06 20:50:29,587 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5128 transitions. Word has length 675 [2021-12-06 20:50:29,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:29,587 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5128 transitions. [2021-12-06 20:50:29,588 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) [2021-12-06 20:50:29,588 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5128 transitions. [2021-12-06 20:50:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2021-12-06 20:50:29,595 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:29,595 INFO L514 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:29,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 20:50:29,595 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:29,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:29,596 INFO L85 PathProgramCache]: Analyzing trace with hash 166928768, now seen corresponding path program 1 times [2021-12-06 20:50:29,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:29,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243813507] [2021-12-06 20:50:29,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:29,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:29,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1934 backedges. 1397 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2021-12-06 20:50:29,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:29,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243813507] [2021-12-06 20:50:29,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243813507] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:29,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:50:29,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:50:29,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092439665] [2021-12-06 20:50:29,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:29,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:29,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:29,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:29,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:50:29,751 INFO L87 Difference]: Start difference. First operand 4810 states and 5128 transitions. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:30,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:30,070 INFO L93 Difference]: Finished difference Result 9440 states and 10075 transitions. [2021-12-06 20:50:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:30,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 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 797 [2021-12-06 20:50:30,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:30,078 INFO L225 Difference]: With dead ends: 9440 [2021-12-06 20:50:30,078 INFO L226 Difference]: Without dead ends: 4810 [2021-12-06 20:50:30,081 INFO L932 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 [2021-12-06 20:50:30,082 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 51 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:30,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 244 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:50:30,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-12-06 20:50:30,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4276. [2021-12-06 20:50:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.070643274853801) internal successors, (4577), 4275 states have internal predecessors, (4577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:30,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4577 transitions. [2021-12-06 20:50:30,139 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4577 transitions. Word has length 797 [2021-12-06 20:50:30,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:30,139 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4577 transitions. [2021-12-06 20:50:30,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:30,139 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4577 transitions. [2021-12-06 20:50:30,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2021-12-06 20:50:30,146 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:30,147 INFO L514 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:30,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 20:50:30,147 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:30,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:30,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1386667544, now seen corresponding path program 1 times [2021-12-06 20:50:30,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:30,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592894606] [2021-12-06 20:50:30,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:30,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:30,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-12-06 20:50:30,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:30,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592894606] [2021-12-06 20:50:30,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592894606] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:50:30,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404656668] [2021-12-06 20:50:30,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:30,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:30,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:50:30,338 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:50:30,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 20:50:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:30,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:50:30,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:50:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-12-06 20:50:31,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:50:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-12-06 20:50:31,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404656668] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:50:31,550 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:50:31,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-06 20:50:31,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801346337] [2021-12-06 20:50:31,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:50:31,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:50:31,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:31,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:50:31,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:50:31,552 INFO L87 Difference]: Start difference. First operand 4276 states and 4577 transitions. Second operand has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:32,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:32,205 INFO L93 Difference]: Finished difference Result 9796 states and 10498 transitions. [2021-12-06 20:50:32,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:50:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 0 states have call successors, (0), 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 830 [2021-12-06 20:50:32,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:32,211 INFO L225 Difference]: With dead ends: 9796 [2021-12-06 20:50:32,211 INFO L226 Difference]: Without dead ends: 5700 [2021-12-06 20:50:32,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1662 GetRequests, 1658 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:50:32,215 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 51 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:32,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 65 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 20:50:32,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-12-06 20:50:32,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4988. [2021-12-06 20:50:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.068979346300381) internal successors, (5331), 4987 states have internal predecessors, (5331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:32,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5331 transitions. [2021-12-06 20:50:32,263 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5331 transitions. Word has length 830 [2021-12-06 20:50:32,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:32,263 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5331 transitions. [2021-12-06 20:50:32,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5331 transitions. [2021-12-06 20:50:32,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2021-12-06 20:50:32,271 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:50:32,272 INFO L514 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:32,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 20:50:32,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:50:32,473 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:50:32,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:50:32,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1338545778, now seen corresponding path program 1 times [2021-12-06 20:50:32,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:50:32,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562277930] [2021-12-06 20:50:32,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:50:32,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:50:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:50:32,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 1851 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2021-12-06 20:50:32,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:50:32,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562277930] [2021-12-06 20:50:32,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562277930] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:50:32,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:50:32,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:50:32,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983737679] [2021-12-06 20:50:32,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:50:32,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:50:32,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:50:32,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:50:32,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:50:32,673 INFO L87 Difference]: Start difference. First operand 4988 states and 5331 transitions. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:32,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:50:32,968 INFO L93 Difference]: Finished difference Result 10150 states and 10845 transitions. [2021-12-06 20:50:32,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:50:32,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 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 881 [2021-12-06 20:50:32,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:50:32,969 INFO L225 Difference]: With dead ends: 10150 [2021-12-06 20:50:32,969 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 20:50:32,974 INFO L932 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 [2021-12-06 20:50:32,975 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 50 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:50:32,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 240 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:50:32,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 20:50:32,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 20:50:32,975 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) [2021-12-06 20:50:32,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 20:50:32,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 881 [2021-12-06 20:50:32,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:50:32,976 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:50:32,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:50:32,976 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 20:50:32,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 20:50:32,978 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:50:32,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 20:50:32,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 20:50:33,681 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-12-06 20:50:33,681 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,682 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-12-06 20:50:33,683 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,684 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,685 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-12-06 20:50:33,686 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-12-06 20:50:33,687 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 167) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-12-06 20:50:33,688 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-12-06 20:50:33,689 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-12-06 20:50:33,690 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 20:50:33,691 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 7))) (or (and (<= 6 ~a15~0) .cse0) (and .cse0 (< 0 (+ ~a12~0 43))) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0)) (and (<= 9 ~a21~0) (<= ~a21~0 9) .cse0) (and .cse0 .cse1))) [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,692 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,693 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 7))) (or (and (<= 6 ~a15~0) .cse0) (and .cse0 (< 0 (+ ~a12~0 43))) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0)) (and (<= 9 ~a21~0) (<= ~a21~0 9) .cse0) (and .cse0 .cse1))) [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-12-06 20:50:33,694 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-12-06 20:50:33,697 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:50:33,698 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:50:33,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:50:33 BoogieIcfgContainer [2021-12-06 20:50:33,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:50:33,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:50:33,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:50:33,713 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:50:33,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:50:14" (3/4) ... [2021-12-06 20:50:33,715 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 20:50:33,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 20:50:33,737 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 20:50:33,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 20:50:33,740 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 20:50:33,840 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 20:50:33,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:50:33,840 INFO L158 Benchmark]: Toolchain (without parser) took 20511.54ms. Allocated memory was 90.2MB in the beginning and 293.6MB in the end (delta: 203.4MB). Free memory was 53.9MB in the beginning and 100.3MB in the end (delta: -46.4MB). Peak memory consumption was 158.7MB. Max. memory is 16.1GB. [2021-12-06 20:50:33,841 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory was 51.4MB in the beginning and 51.4MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:50:33,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.70ms. Allocated memory is still 90.2MB. Free memory was 53.7MB in the beginning and 45.3MB in the end (delta: 8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 20:50:33,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.00ms. Allocated memory is still 90.2MB. Free memory was 44.8MB in the beginning and 35.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 20:50:33,841 INFO L158 Benchmark]: Boogie Preprocessor took 93.91ms. Allocated memory is still 90.2MB. Free memory was 35.6MB in the beginning and 58.9MB in the end (delta: -23.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-12-06 20:50:33,842 INFO L158 Benchmark]: RCFGBuilder took 889.35ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 58.9MB in the beginning and 83.4MB in the end (delta: -24.4MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2021-12-06 20:50:33,842 INFO L158 Benchmark]: TraceAbstraction took 18895.99ms. Allocated memory was 115.3MB in the beginning and 293.6MB in the end (delta: 178.3MB). Free memory was 82.6MB in the beginning and 118.3MB in the end (delta: -35.7MB). Peak memory consumption was 208.6MB. Max. memory is 16.1GB. [2021-12-06 20:50:33,842 INFO L158 Benchmark]: Witness Printer took 127.11ms. Allocated memory is still 293.6MB. Free memory was 118.3MB in the beginning and 100.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-06 20:50:33,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory was 51.4MB in the beginning and 51.4MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.70ms. Allocated memory is still 90.2MB. Free memory was 53.7MB in the beginning and 45.3MB in the end (delta: 8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.00ms. Allocated memory is still 90.2MB. Free memory was 44.8MB in the beginning and 35.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.91ms. Allocated memory is still 90.2MB. Free memory was 35.6MB in the beginning and 58.9MB in the end (delta: -23.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * RCFGBuilder took 889.35ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 58.9MB in the beginning and 83.4MB in the end (delta: -24.4MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * TraceAbstraction took 18895.99ms. Allocated memory was 115.3MB in the beginning and 293.6MB in the end (delta: 178.3MB). Free memory was 82.6MB in the beginning and 118.3MB in the end (delta: -35.7MB). Peak memory consumption was 208.6MB. Max. memory is 16.1GB. * Witness Printer took 127.11ms. Allocated memory is still 293.6MB. Free memory was 118.3MB in the beginning and 100.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * 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: 167]: 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: 18.8s, OverallIterations: 17, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2262 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2262 mSDsluCounter, 1717 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 1157 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9655 IncrementalHoareTripleChecker+Invalid, 10812 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1157 mSolverCounterUnsat, 1611 mSDtfsCounter, 9655 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4675 GetRequests, 4627 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4988occurred in iteration=16, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 4067 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 71 NumberOfFragments, 93 HoareAnnotationTreeSize, 3 FomulaSimplifications, 934 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4536 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 11672 NumberOfCodeBlocks, 11672 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 12477 ConstructedInterpolants, 0 QuantifiedInterpolants, 42344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4879 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 25 InterpolantComputations, 16 PerfectInterpolantSequences, 22217/23740 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 Derived loop invariant: ((((6 <= a15 && a24 == 1) || (a24 == 1 && 0 < a12 + 43)) || ((a15 <= 8 && a21 <= 7) && 49 + a12 <= 0)) || ((9 <= a21 && a21 <= 9) && a24 == 1)) || (a24 == 1 && a21 <= 7) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((6 <= a15 && a24 == 1) || (a24 == 1 && 0 < a12 + 43)) || ((a15 <= 8 && a21 <= 7) && 49 + a12 <= 0)) || ((9 <= a21 && a21 <= 9) && a24 == 1)) || (a24 == 1 && a21 <= 7) RESULT: Ultimate proved your program to be correct! [2021-12-06 20:50:33,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_375f5483-abcd-463f-b20e-4cee12bb58dc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE