./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be --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 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:11:47,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:11:47,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:11:47,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:11:47,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:11:47,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:11:47,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:11:47,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:11:47,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:11:47,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:11:47,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:11:47,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:11:47,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:11:47,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:11:47,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:11:47,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:11:47,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:11:47,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:11:47,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:11:47,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:11:47,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:11:47,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:11:47,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:11:47,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:11:47,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:11:47,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:11:47,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:11:47,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:11:47,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:11:47,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:11:47,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:11:47,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:11:47,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:11:47,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:11:47,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:11:47,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:11:47,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:11:47,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:11:47,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:11:47,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:11:47,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:11:47,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:11:47,977 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:11:47,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:11:47,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:11:47,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:11:47,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:11:47,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:11:47,979 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:11:47,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:11:47,980 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:11:47,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:11:47,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:11:47,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:11:47,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:11:47,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:11:47,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:11:47,981 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:11:47,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:11:47,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:11:47,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:11:47,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:11:47,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:11:47,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:11:47,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:11:47,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:11:47,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:11:47,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:11:47,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:11:47,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:11:47,984 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:11:47,984 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:11:47,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:11:47,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:11:47,985 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_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 [2021-10-21 19:11:48,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:11:48,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:11:48,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:11:48,261 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:11:48,270 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:11:48,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2021-10-21 19:11:48,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/data/682401246/8b243882ead14f359942051f90e9e052/FLAG812cc30de [2021-10-21 19:11:48,783 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:11:48,785 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2021-10-21 19:11:48,796 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/data/682401246/8b243882ead14f359942051f90e9e052/FLAG812cc30de [2021-10-21 19:11:49,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/data/682401246/8b243882ead14f359942051f90e9e052 [2021-10-21 19:11:49,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:11:49,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:11:49,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:11:49,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:11:49,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:11:49,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7626db1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49, skipping insertion in model container [2021-10-21 19:11:49,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:11:49,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:11:49,381 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c[538,551] [2021-10-21 19:11:49,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:11:49,404 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:11:49,416 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c[538,551] [2021-10-21 19:11:49,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:11:49,438 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:11:49,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49 WrapperNode [2021-10-21 19:11:49,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:11:49,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:11:49,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:11:49,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:11:49,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:11:49,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:11:49,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:11:49,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:11:49,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:11:49,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:11:49,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:11:49,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:11:49,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (1/1) ... [2021-10-21 19:11:49,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:11:49,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:49,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:11:49,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:11:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:11:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:11:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:11:49,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:11:49,949 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:11:49,949 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-21 19:11:49,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:11:49 BoogieIcfgContainer [2021-10-21 19:11:49,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:11:49,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:11:49,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:11:49,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:11:49,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:11:49" (1/3) ... [2021-10-21 19:11:49,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41cf3620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:11:49, skipping insertion in model container [2021-10-21 19:11:49,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:49" (2/3) ... [2021-10-21 19:11:49,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41cf3620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:11:49, skipping insertion in model container [2021-10-21 19:11:49,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:11:49" (3/3) ... [2021-10-21 19:11:49,985 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound10.c [2021-10-21 19:11:49,990 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:11:49,990 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-21 19:11:50,060 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:11:50,067 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:11:50,067 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-21 19:11:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 42 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:50,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:11:50,082 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:50,083 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:50,084 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:50,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:50,089 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-10-21 19:11:50,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:50,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407160757] [2021-10-21 19:11:50,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:50,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:50,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:50,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:50,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407160757] [2021-10-21 19:11:50,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407160757] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:50,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:50,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:11:50,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125302248] [2021-10-21 19:11:50,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:11:50,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:50,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:11:50,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:11:50,286 INFO L87 Difference]: Start difference. First operand has 43 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 42 states have internal predecessors, (59), 0 states have call successors, (0), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:50,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:50,302 INFO L93 Difference]: Finished difference Result 83 states and 114 transitions. [2021-10-21 19:11:50,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:11:50,303 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2021-10-21 19:11:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:50,312 INFO L225 Difference]: With dead ends: 83 [2021-10-21 19:11:50,312 INFO L226 Difference]: Without dead ends: 39 [2021-10-21 19:11:50,315 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:11:50,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-21 19:11:50,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-21 19:11:50,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.28125) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:50,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-10-21 19:11:50,347 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2021-10-21 19:11:50,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:50,348 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-10-21 19:11:50,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:50,348 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-10-21 19:11:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:11:50,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:50,349 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:50,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:11:50,350 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:50,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-10-21 19:11:50,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:50,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869354250] [2021-10-21 19:11:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:50,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:50,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:50,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869354250] [2021-10-21 19:11:50,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869354250] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:50,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:50,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:11:50,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700813360] [2021-10-21 19:11:50,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:11:50,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:11:50,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:50,484 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:50,592 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2021-10-21 19:11:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:11:50,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2021-10-21 19:11:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:50,595 INFO L225 Difference]: With dead ends: 58 [2021-10-21 19:11:50,598 INFO L226 Difference]: Without dead ends: 56 [2021-10-21 19:11:50,598 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:50,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-21 19:11:50,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 37. [2021-10-21 19:11:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-10-21 19:11:50,607 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 11 [2021-10-21 19:11:50,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:50,607 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-10-21 19:11:50,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:50,608 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-10-21 19:11:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:11:50,608 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:50,608 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:50,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:11:50,609 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:50,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:50,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2021-10-21 19:11:50,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:50,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648880517] [2021-10-21 19:11:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:50,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:50,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:50,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:50,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648880517] [2021-10-21 19:11:50,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648880517] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:50,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:50,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:11:50,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402536675] [2021-10-21 19:11:50,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:11:50,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:50,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:11:50,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:50,683 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:50,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:50,767 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2021-10-21 19:11:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:11:50,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-10-21 19:11:50,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:50,769 INFO L225 Difference]: With dead ends: 56 [2021-10-21 19:11:50,770 INFO L226 Difference]: Without dead ends: 54 [2021-10-21 19:11:50,770 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:50,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-21 19:11:50,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 35. [2021-10-21 19:11:50,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-10-21 19:11:50,786 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2021-10-21 19:11:50,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:50,786 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-10-21 19:11:50,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:50,787 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-10-21 19:11:50,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-21 19:11:50,787 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:50,787 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:50,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:11:50,787 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:50,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:50,788 INFO L82 PathProgramCache]: Analyzing trace with hash 999399167, now seen corresponding path program 1 times [2021-10-21 19:11:50,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:50,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674917736] [2021-10-21 19:11:50,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:50,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:50,807 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:11:50,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1926917127] [2021-10-21 19:11:50,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:50,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:50,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:50,809 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:50,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:11:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:50,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:11:50,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:51,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:51,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:51,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674917736] [2021-10-21 19:11:51,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:11:51,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926917127] [2021-10-21 19:11:51,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926917127] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:51,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:51,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:11:51,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123794174] [2021-10-21 19:11:51,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:11:51,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:51,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:11:51,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:51,048 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:51,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:51,178 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2021-10-21 19:11:51,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:11:51,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2021-10-21 19:11:51,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:51,180 INFO L225 Difference]: With dead ends: 76 [2021-10-21 19:11:51,180 INFO L226 Difference]: Without dead ends: 54 [2021-10-21 19:11:51,180 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:51,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-21 19:11:51,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2021-10-21 19:11:51,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 48 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:51,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2021-10-21 19:11:51,190 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 15 [2021-10-21 19:11:51,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:51,191 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2021-10-21 19:11:51,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:51,191 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-10-21 19:11:51,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 19:11:51,192 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:51,192 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:51,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:51,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:51,417 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:51,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:51,417 INFO L82 PathProgramCache]: Analyzing trace with hash 392223696, now seen corresponding path program 1 times [2021-10-21 19:11:51,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:51,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232445256] [2021-10-21 19:11:51,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:51,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:51,434 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:11:51,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834983045] [2021-10-21 19:11:51,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:51,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:51,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:51,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:51,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:11:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:51,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:11:51,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:51,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:51,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:51,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232445256] [2021-10-21 19:11:51,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:11:51,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834983045] [2021-10-21 19:11:51,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834983045] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:51,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:51,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:11:51,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051399340] [2021-10-21 19:11:51,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:11:51,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:51,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:11:51,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:11:51,947 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:52,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:52,134 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2021-10-21 19:11:52,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:11:52,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-10-21 19:11:52,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:52,138 INFO L225 Difference]: With dead ends: 53 [2021-10-21 19:11:52,139 INFO L226 Difference]: Without dead ends: 42 [2021-10-21 19:11:52,139 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 115.3ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:11:52,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-21 19:11:52,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-21 19:11:52,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:52,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-10-21 19:11:52,161 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 18 [2021-10-21 19:11:52,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:52,161 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-10-21 19:11:52,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:52,162 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-10-21 19:11:52,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 19:11:52,164 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:52,165 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:52,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:52,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:52,382 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:52,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:52,382 INFO L82 PathProgramCache]: Analyzing trace with hash 434992196, now seen corresponding path program 1 times [2021-10-21 19:11:52,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:52,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133538749] [2021-10-21 19:11:52,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:52,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:52,415 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:11:52,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975966417] [2021-10-21 19:11:52,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:52,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:52,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:52,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:52,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:11:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:52,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 19:11:52,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:52,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:52,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:52,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133538749] [2021-10-21 19:11:52,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:11:52,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975966417] [2021-10-21 19:11:52,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975966417] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:52,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:52,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-21 19:11:52,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158341329] [2021-10-21 19:11:52,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:11:52,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:52,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:11:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:11:52,842 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:53,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:53,129 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2021-10-21 19:11:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:11:53,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-10-21 19:11:53,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:53,131 INFO L225 Difference]: With dead ends: 91 [2021-10-21 19:11:53,131 INFO L226 Difference]: Without dead ends: 69 [2021-10-21 19:11:53,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 190.5ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:11:53,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-21 19:11:53,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2021-10-21 19:11:53,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 61 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:53,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2021-10-21 19:11:53,148 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 22 [2021-10-21 19:11:53,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:53,148 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2021-10-21 19:11:53,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:53,148 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2021-10-21 19:11:53,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:11:53,149 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:53,151 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:53,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:53,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:53,366 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:53,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:53,367 INFO L82 PathProgramCache]: Analyzing trace with hash 941114475, now seen corresponding path program 1 times [2021-10-21 19:11:53,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:53,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293289035] [2021-10-21 19:11:53,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:53,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:53,381 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:11:53,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698671399] [2021-10-21 19:11:53,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:53,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:53,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:53,385 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:53,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:11:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:53,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 19:11:53,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:54,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:54,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293289035] [2021-10-21 19:11:54,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:11:54,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698671399] [2021-10-21 19:11:54,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698671399] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:54,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:54,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-21 19:11:54,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814419140] [2021-10-21 19:11:54,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:11:54,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:54,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:11:54,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:11:54,026 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:54,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:54,390 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2021-10-21 19:11:54,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:11:54,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-10-21 19:11:54,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:54,392 INFO L225 Difference]: With dead ends: 73 [2021-10-21 19:11:54,392 INFO L226 Difference]: Without dead ends: 62 [2021-10-21 19:11:54,392 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 261.3ms TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:11:54,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-21 19:11:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-10-21 19:11:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 61 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:54,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2021-10-21 19:11:54,400 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 25 [2021-10-21 19:11:54,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:54,401 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2021-10-21 19:11:54,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2021-10-21 19:11:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-21 19:11:54,407 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:54,407 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:54,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:54,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-21 19:11:54,608 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:54,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:54,608 INFO L82 PathProgramCache]: Analyzing trace with hash -919005345, now seen corresponding path program 2 times [2021-10-21 19:11:54,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:54,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604986930] [2021-10-21 19:11:54,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:54,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:54,620 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:11:54,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554448054] [2021-10-21 19:11:54,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:11:54,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:54,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:54,622 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:54,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:11:54,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:11:54,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:11:54,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:11:54,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:55,008 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:55,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:55,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604986930] [2021-10-21 19:11:55,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:11:55,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554448054] [2021-10-21 19:11:55,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554448054] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:55,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:55,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-21 19:11:55,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010702539] [2021-10-21 19:11:55,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:11:55,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:55,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:11:55,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:11:55,028 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:55,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:55,226 INFO L93 Difference]: Finished difference Result 119 states and 133 transitions. [2021-10-21 19:11:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:11:55,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2021-10-21 19:11:55,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:55,228 INFO L225 Difference]: With dead ends: 119 [2021-10-21 19:11:55,228 INFO L226 Difference]: Without dead ends: 97 [2021-10-21 19:11:55,229 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 56.1ms TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:11:55,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-21 19:11:55,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 81. [2021-10-21 19:11:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 80 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2021-10-21 19:11:55,245 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 29 [2021-10-21 19:11:55,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:55,245 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2021-10-21 19:11:55,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2021-10-21 19:11:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-21 19:11:55,249 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:55,250 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:55,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:55,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:55,470 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:55,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:55,470 INFO L82 PathProgramCache]: Analyzing trace with hash -36466664, now seen corresponding path program 1 times [2021-10-21 19:11:55,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:55,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457577365] [2021-10-21 19:11:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:55,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:55,483 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:11:55,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1665867945] [2021-10-21 19:11:55,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:55,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:55,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:55,490 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:55,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 19:11:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:55,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-21 19:11:55,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:56,354 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:56,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:56,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457577365] [2021-10-21 19:11:56,355 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:11:56,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665867945] [2021-10-21 19:11:56,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665867945] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:56,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:56,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-21 19:11:56,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997824341] [2021-10-21 19:11:56,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:11:56,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:56,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:11:56,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:11:56,357 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:56,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:56,614 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2021-10-21 19:11:56,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:11:56,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-10-21 19:11:56,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:56,617 INFO L225 Difference]: With dead ends: 92 [2021-10-21 19:11:56,617 INFO L226 Difference]: Without dead ends: 90 [2021-10-21 19:11:56,617 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 193.2ms TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:11:56,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-21 19:11:56,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2021-10-21 19:11:56,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 78 states have (on average 1.1794871794871795) internal successors, (92), 82 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:56,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2021-10-21 19:11:56,629 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 31 [2021-10-21 19:11:56,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:56,629 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2021-10-21 19:11:56,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:56,629 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2021-10-21 19:11:56,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-21 19:11:56,630 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:56,631 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:56,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:56,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:56,838 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:56,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:56,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1961752720, now seen corresponding path program 2 times [2021-10-21 19:11:56,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:56,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159343504] [2021-10-21 19:11:56,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:56,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:56,851 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:11:56,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1519351683] [2021-10-21 19:11:56,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:11:56,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:56,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:56,852 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:56,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:11:57,034 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-21 19:11:57,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:11:57,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 19:11:57,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:57,522 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-21 19:11:57,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:57,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159343504] [2021-10-21 19:11:57,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:11:57,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519351683] [2021-10-21 19:11:57,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519351683] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:57,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:57,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 19:11:57,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789079414] [2021-10-21 19:11:57,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:11:57,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:57,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:11:57,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:11:57,525 INFO L87 Difference]: Start difference. First operand 83 states and 92 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:57,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:57,726 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2021-10-21 19:11:57,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:11:57,727 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 32 [2021-10-21 19:11:57,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:57,728 INFO L225 Difference]: With dead ends: 114 [2021-10-21 19:11:57,728 INFO L226 Difference]: Without dead ends: 103 [2021-10-21 19:11:57,728 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 161.7ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:11:57,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-21 19:11:57,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2021-10-21 19:11:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 92 states have (on average 1.173913043478261) internal successors, (108), 96 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:57,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2021-10-21 19:11:57,740 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 32 [2021-10-21 19:11:57,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:57,740 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2021-10-21 19:11:57,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:57,741 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2021-10-21 19:11:57,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-21 19:11:57,742 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:57,742 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-21 19:11:57,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:57,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-21 19:11:57,966 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:57,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:57,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1455744328, now seen corresponding path program 1 times [2021-10-21 19:11:57,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:57,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307133352] [2021-10-21 19:11:57,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:57,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:57,981 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:11:57,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1715097107] [2021-10-21 19:11:57,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:57,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:57,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:57,983 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:57,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:11:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:58,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-21 19:11:58,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:58,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:58,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307133352] [2021-10-21 19:11:58,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:11:58,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715097107] [2021-10-21 19:11:58,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715097107] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:58,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:58,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-21 19:11:58,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904638911] [2021-10-21 19:11:58,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:11:58,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:58,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:11:58,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:11:58,819 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:59,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:59,102 INFO L93 Difference]: Finished difference Result 156 states and 171 transitions. [2021-10-21 19:11:59,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:11:59,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-10-21 19:11:59,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:59,103 INFO L225 Difference]: With dead ends: 156 [2021-10-21 19:11:59,103 INFO L226 Difference]: Without dead ends: 104 [2021-10-21 19:11:59,104 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 173.7ms TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:11:59,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-10-21 19:11:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 88. [2021-10-21 19:11:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 87 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:59,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-10-21 19:11:59,119 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 36 [2021-10-21 19:11:59,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:59,119 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-10-21 19:11:59,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:59,119 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-10-21 19:11:59,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-21 19:11:59,124 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:59,124 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:59,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:59,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:59,346 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:11:59,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:59,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1277177884, now seen corresponding path program 3 times [2021-10-21 19:11:59,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:59,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673533433] [2021-10-21 19:11:59,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:59,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:59,358 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:11:59,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [664566608] [2021-10-21 19:11:59,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:11:59,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:59,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:59,371 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:59,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 19:11:59,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-21 19:11:59,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:11:59,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 19:11:59,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:59,938 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-21 19:11:59,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:59,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673533433] [2021-10-21 19:11:59,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:11:59,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664566608] [2021-10-21 19:11:59,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664566608] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:59,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:59,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-21 19:11:59,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760857844] [2021-10-21 19:11:59,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:11:59,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:59,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:11:59,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:11:59,941 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:07,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:07,716 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2021-10-21 19:12:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:12:07,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 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 36 [2021-10-21 19:12:07,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:07,718 INFO L225 Difference]: With dead ends: 98 [2021-10-21 19:12:07,718 INFO L226 Difference]: Without dead ends: 88 [2021-10-21 19:12:07,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2565.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:12:07,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-21 19:12:07,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2021-10-21 19:12:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.146341463414634) internal successors, (94), 85 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-10-21 19:12:07,729 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 36 [2021-10-21 19:12:07,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:07,729 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-10-21 19:12:07,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-10-21 19:12:07,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-21 19:12:07,730 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:12:07,730 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:12:07,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:07,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:07,944 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:12:07,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:12:07,945 INFO L82 PathProgramCache]: Analyzing trace with hash -642892963, now seen corresponding path program 2 times [2021-10-21 19:12:07,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:12:07,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222315638] [2021-10-21 19:12:07,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:07,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:12:07,965 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:12:07,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39513617] [2021-10-21 19:12:07,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:12:07,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:07,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:12:07,968 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:12:08,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 19:12:08,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:12:08,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:12:08,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-21 19:12:08,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:12:09,280 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:12:09,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:12:09,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222315638] [2021-10-21 19:12:09,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:12:09,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39513617] [2021-10-21 19:12:09,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39513617] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:12:09,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:12:09,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-10-21 19:12:09,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037277538] [2021-10-21 19:12:09,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:12:09,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:12:09,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:12:09,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:12:09,282 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:10,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:10,056 INFO L93 Difference]: Finished difference Result 98 states and 105 transitions. [2021-10-21 19:12:10,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:12:10,056 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2021-10-21 19:12:10,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:10,057 INFO L225 Difference]: With dead ends: 98 [2021-10-21 19:12:10,057 INFO L226 Difference]: Without dead ends: 96 [2021-10-21 19:12:10,058 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 552.8ms TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2021-10-21 19:12:10,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-21 19:12:10,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2021-10-21 19:12:10,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.130952380952381) internal successors, (95), 87 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:10,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2021-10-21 19:12:10,067 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 38 [2021-10-21 19:12:10,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:10,068 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2021-10-21 19:12:10,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:10,068 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2021-10-21 19:12:10,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-21 19:12:10,069 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:12:10,069 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:12:10,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:10,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:10,286 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:12:10,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:12:10,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1707275894, now seen corresponding path program 3 times [2021-10-21 19:12:10,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:12:10,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328512097] [2021-10-21 19:12:10,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:10,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:12:10,298 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:12:10,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118525917] [2021-10-21 19:12:10,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:12:10,298 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:10,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:12:10,299 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:12:10,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-21 19:12:10,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-21 19:12:10,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:12:10,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 54 conjunts are in the unsatisfiable core [2021-10-21 19:12:10,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:12:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:12:12,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:12:12,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328512097] [2021-10-21 19:12:12,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:12:12,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118525917] [2021-10-21 19:12:12,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118525917] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:12:12,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:12:12,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-10-21 19:12:12,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042879366] [2021-10-21 19:12:12,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-21 19:12:12,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:12:12,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-21 19:12:12,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-10-21 19:12:12,134 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:13,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:13,388 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2021-10-21 19:12:13,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 19:12:13,389 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2021-10-21 19:12:13,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:13,390 INFO L225 Difference]: With dead ends: 100 [2021-10-21 19:12:13,390 INFO L226 Difference]: Without dead ends: 89 [2021-10-21 19:12:13,391 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 980.6ms TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2021-10-21 19:12:13,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-21 19:12:13,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2021-10-21 19:12:13,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.1097560975609757) internal successors, (91), 85 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:13,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-10-21 19:12:13,399 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 44 [2021-10-21 19:12:13,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:13,400 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-10-21 19:12:13,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:13,400 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-10-21 19:12:13,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-21 19:12:13,401 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:12:13,401 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:12:13,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:13,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:13,626 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:12:13,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:12:13,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1027491960, now seen corresponding path program 4 times [2021-10-21 19:12:13,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:12:13,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761220060] [2021-10-21 19:12:13,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:13,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:12:13,658 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:12:13,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [681169427] [2021-10-21 19:12:13,658 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:12:13,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:13,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:12:13,678 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:12:13,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 19:12:14,194 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:12:14,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:12:14,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-21 19:12:14,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:12:15,095 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:12:15,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:12:15,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761220060] [2021-10-21 19:12:15,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:12:15,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681169427] [2021-10-21 19:12:15,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681169427] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:12:15,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:12:15,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-10-21 19:12:15,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870151515] [2021-10-21 19:12:15,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:12:15,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:12:15,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:12:15,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:12:15,099 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:16,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:16,036 INFO L93 Difference]: Finished difference Result 125 states and 134 transitions. [2021-10-21 19:12:16,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:12:16,036 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-21 19:12:16,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:16,038 INFO L225 Difference]: With dead ends: 125 [2021-10-21 19:12:16,038 INFO L226 Difference]: Without dead ends: 123 [2021-10-21 19:12:16,038 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 256.1ms TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-10-21 19:12:16,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-21 19:12:16,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 110. [2021-10-21 19:12:16,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 106 states have (on average 1.1320754716981132) internal successors, (120), 109 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:16,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2021-10-21 19:12:16,050 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 45 [2021-10-21 19:12:16,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:16,050 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2021-10-21 19:12:16,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:16,050 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2021-10-21 19:12:16,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-21 19:12:16,051 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:12:16,051 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:12:16,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:16,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-21 19:12:16,262 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:12:16,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:12:16,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1554139002, now seen corresponding path program 2 times [2021-10-21 19:12:16,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:12:16,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829225774] [2021-10-21 19:12:16,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:16,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:12:16,280 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:12:16,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1912498835] [2021-10-21 19:12:16,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:12:16,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:16,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:12:16,302 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:12:16,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-21 19:12:16,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-21 19:12:16,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:12:16,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 19:12:16,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:12:42,905 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-21 19:12:42,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:12:42,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829225774] [2021-10-21 19:12:42,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:12:42,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912498835] [2021-10-21 19:12:42,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912498835] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:12:42,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:12:42,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 19:12:42,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027117354] [2021-10-21 19:12:42,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:12:42,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:12:42,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:12:42,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=40, Unknown=3, NotChecked=0, Total=56 [2021-10-21 19:12:42,907 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:12:57,641 WARN L207 SmtUtils]: Spent 14.71 s on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2021-10-21 19:13:14,114 WARN L207 SmtUtils]: Spent 16.43 s on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2021-10-21 19:13:30,639 WARN L207 SmtUtils]: Spent 16.45 s on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2021-10-21 19:13:46,873 WARN L207 SmtUtils]: Spent 16.15 s on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2021-10-21 19:14:07,500 WARN L207 SmtUtils]: Spent 20.49 s on a formula simplification. DAG size of input: 46 DAG size of output: 29 [2021-10-21 19:14:42,257 WARN L207 SmtUtils]: Spent 14.18 s on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-10-21 19:14:54,720 WARN L207 SmtUtils]: Spent 12.40 s on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2021-10-21 19:15:08,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:08,605 INFO L93 Difference]: Finished difference Result 114 states and 124 transitions. [2021-10-21 19:15:08,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:15:08,606 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 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 49 [2021-10-21 19:15:08,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:08,607 INFO L225 Difference]: With dead ends: 114 [2021-10-21 19:15:08,607 INFO L226 Difference]: Without dead ends: 91 [2021-10-21 19:15:08,607 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 129466.6ms TimeCoverageRelationStatistics Valid=75, Invalid=158, Unknown=7, NotChecked=0, Total=240 [2021-10-21 19:15:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-21 19:15:08,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 79. [2021-10-21 19:15:08,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 76 states have (on average 1.0921052631578947) internal successors, (83), 78 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:08,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2021-10-21 19:15:08,616 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 49 [2021-10-21 19:15:08,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:08,616 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2021-10-21 19:15:08,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:08,617 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2021-10-21 19:15:08,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-21 19:15:08,617 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:08,618 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:08,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:08,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-21 19:15:08,834 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:15:08,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:08,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1461163621, now seen corresponding path program 5 times [2021-10-21 19:15:08,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:08,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497334985] [2021-10-21 19:15:08,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:08,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:08,847 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:15:08,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802413620] [2021-10-21 19:15:08,848 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:15:08,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:08,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:08,849 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:15:08,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-21 19:15:09,407 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-21 19:15:09,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:15:09,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-21 19:15:09,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:10,808 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:10,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:10,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497334985] [2021-10-21 19:15:10,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:15:10,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802413620] [2021-10-21 19:15:10,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802413620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:15:10,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:15:10,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-10-21 19:15:10,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060689257] [2021-10-21 19:15:10,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-21 19:15:10,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:10,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-21 19:15:10,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-10-21 19:15:10,810 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 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) [2021-10-21 19:15:11,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:11,682 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2021-10-21 19:15:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 19:15:11,686 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 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 [2021-10-21 19:15:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:11,686 INFO L225 Difference]: With dead ends: 118 [2021-10-21 19:15:11,686 INFO L226 Difference]: Without dead ends: 108 [2021-10-21 19:15:11,687 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 525.3ms TimeCoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2021-10-21 19:15:11,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-21 19:15:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 88. [2021-10-21 19:15:11,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 1.0941176470588236) internal successors, (93), 87 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:11,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2021-10-21 19:15:11,700 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 51 [2021-10-21 19:15:11,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:11,700 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2021-10-21 19:15:11,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 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) [2021-10-21 19:15:11,700 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2021-10-21 19:15:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-21 19:15:11,701 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:11,701 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:11,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:11,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-21 19:15:11,922 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:15:11,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:11,922 INFO L82 PathProgramCache]: Analyzing trace with hash 464869117, now seen corresponding path program 6 times [2021-10-21 19:15:11,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:11,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734230172] [2021-10-21 19:15:11,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:11,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:11,934 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:15:11,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472858512] [2021-10-21 19:15:11,942 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:15:11,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:11,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:11,958 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:15:11,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-21 19:15:12,631 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-10-21 19:15:12,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:15:12,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-21 19:15:12,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-21 19:15:31,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:31,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734230172] [2021-10-21 19:15:31,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:15:31,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472858512] [2021-10-21 19:15:31,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472858512] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:15:31,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:15:31,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-10-21 19:15:31,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152865550] [2021-10-21 19:15:31,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 19:15:31,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 19:15:31,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:15:31,337 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:47,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:47,722 INFO L93 Difference]: Finished difference Result 104 states and 109 transitions. [2021-10-21 19:15:47,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:15:47,723 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-10-21 19:15:47,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:47,724 INFO L225 Difference]: With dead ends: 104 [2021-10-21 19:15:47,724 INFO L226 Difference]: Without dead ends: 102 [2021-10-21 19:15:47,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 18205.2ms TimeCoverageRelationStatistics Valid=76, Invalid=229, Unknown=1, NotChecked=0, Total=306 [2021-10-21 19:15:47,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-21 19:15:47,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 88. [2021-10-21 19:15:47,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 1.0823529411764705) internal successors, (92), 87 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:47,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2021-10-21 19:15:47,735 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 52 [2021-10-21 19:15:47,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:47,736 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2021-10-21 19:15:47,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:47,736 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2021-10-21 19:15:47,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-21 19:15:47,737 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:47,737 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:47,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:47,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-21 19:15:47,945 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:15:47,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:47,945 INFO L82 PathProgramCache]: Analyzing trace with hash -275908280, now seen corresponding path program 1 times [2021-10-21 19:15:47,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:47,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784746009] [2021-10-21 19:15:47,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:47,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:47,963 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:15:47,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [939678997] [2021-10-21 19:15:47,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:47,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:47,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:47,965 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:15:47,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-21 19:15:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:48,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-21 19:15:48,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:49,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:49,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784746009] [2021-10-21 19:15:49,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:15:49,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939678997] [2021-10-21 19:15:49,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939678997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:15:49,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:15:49,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-21 19:15:49,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84156358] [2021-10-21 19:15:49,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:15:49,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:49,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:15:49,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:15:49,605 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:50,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:50,478 INFO L93 Difference]: Finished difference Result 126 states and 136 transitions. [2021-10-21 19:15:50,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-21 19:15:50,479 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-10-21 19:15:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:50,480 INFO L225 Difference]: With dead ends: 126 [2021-10-21 19:15:50,480 INFO L226 Difference]: Without dead ends: 99 [2021-10-21 19:15:50,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 631.0ms TimeCoverageRelationStatistics Valid=159, Invalid=897, Unknown=0, NotChecked=0, Total=1056 [2021-10-21 19:15:50,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-21 19:15:50,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2021-10-21 19:15:50,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.0795454545454546) internal successors, (95), 90 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2021-10-21 19:15:50,495 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 53 [2021-10-21 19:15:50,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:50,496 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2021-10-21 19:15:50,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2021-10-21 19:15:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-21 19:15:50,497 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:50,497 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:50,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:50,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:50,714 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:15:50,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:50,714 INFO L82 PathProgramCache]: Analyzing trace with hash 589823634, now seen corresponding path program 7 times [2021-10-21 19:15:50,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:50,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902402854] [2021-10-21 19:15:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:50,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:50,731 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:15:50,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305236113] [2021-10-21 19:15:50,731 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:15:50,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:50,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:50,732 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:15:50,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-21 19:15:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:51,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 60 conjunts are in the unsatisfiable core [2021-10-21 19:15:51,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:53,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:53,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902402854] [2021-10-21 19:15:53,091 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:15:53,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305236113] [2021-10-21 19:15:53,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305236113] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:15:53,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:15:53,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-10-21 19:15:53,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119850823] [2021-10-21 19:15:53,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-21 19:15:53,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:53,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-21 19:15:53,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-10-21 19:15:53,093 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:54,021 INFO L93 Difference]: Finished difference Result 102 states and 105 transitions. [2021-10-21 19:15:54,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 19:15:54,022 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-10-21 19:15:54,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:54,023 INFO L225 Difference]: With dead ends: 102 [2021-10-21 19:15:54,023 INFO L226 Difference]: Without dead ends: 92 [2021-10-21 19:15:54,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 654.1ms TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-21 19:15:54,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-21 19:15:54,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2021-10-21 19:15:54,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 90 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:54,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 94 transitions. [2021-10-21 19:15:54,034 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 94 transitions. Word has length 57 [2021-10-21 19:15:54,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:54,035 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 94 transitions. [2021-10-21 19:15:54,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:54,035 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 94 transitions. [2021-10-21 19:15:54,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-21 19:15:54,036 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:54,036 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:54,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:54,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:54,262 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:15:54,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:54,262 INFO L82 PathProgramCache]: Analyzing trace with hash 196796624, now seen corresponding path program 1 times [2021-10-21 19:15:54,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:54,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71649256] [2021-10-21 19:15:54,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:54,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:54,278 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:15:54,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674003409] [2021-10-21 19:15:54,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:54,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:54,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:54,280 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:15:54,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-21 19:15:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:55,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 56 conjunts are in the unsatisfiable core [2021-10-21 19:15:55,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:56,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:56,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71649256] [2021-10-21 19:15:56,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:15:56,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674003409] [2021-10-21 19:15:56,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674003409] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:15:56,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:15:56,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-10-21 19:15:56,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446324751] [2021-10-21 19:15:56,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-21 19:15:56,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:56,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-21 19:15:56,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-10-21 19:15:56,437 INFO L87 Difference]: Start difference. First operand 91 states and 94 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:57,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:57,196 INFO L93 Difference]: Finished difference Result 94 states and 96 transitions. [2021-10-21 19:15:57,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-21 19:15:57,197 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-10-21 19:15:57,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:57,197 INFO L225 Difference]: With dead ends: 94 [2021-10-21 19:15:57,197 INFO L226 Difference]: Without dead ends: 72 [2021-10-21 19:15:57,198 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 594.4ms TimeCoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2021-10-21 19:15:57,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-21 19:15:57,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2021-10-21 19:15:57,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.0735294117647058) internal successors, (73), 70 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2021-10-21 19:15:57,208 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 57 [2021-10-21 19:15:57,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:57,208 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2021-10-21 19:15:57,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:57,209 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2021-10-21 19:15:57,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-21 19:15:57,209 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:57,209 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:57,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:57,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:57,426 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:15:57,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:57,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1395191082, now seen corresponding path program 8 times [2021-10-21 19:15:57,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:57,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171972584] [2021-10-21 19:15:57,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:57,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:57,437 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:15:57,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730108311] [2021-10-21 19:15:57,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:15:57,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:57,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:57,449 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:15:57,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-21 19:15:58,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:15:58,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:15:58,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-21 19:15:58,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:59,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:59,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171972584] [2021-10-21 19:15:59,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:15:59,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730108311] [2021-10-21 19:15:59,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730108311] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:15:59,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:15:59,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-21 19:15:59,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221526180] [2021-10-21 19:15:59,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:15:59,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:59,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:15:59,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:15:59,601 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:00,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:16:00,586 INFO L93 Difference]: Finished difference Result 163 states and 170 transitions. [2021-10-21 19:16:00,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-21 19:16:00,587 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-10-21 19:16:00,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:16:00,587 INFO L225 Difference]: With dead ends: 163 [2021-10-21 19:16:00,588 INFO L226 Difference]: Without dead ends: 128 [2021-10-21 19:16:00,588 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 659.3ms TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2021-10-21 19:16:00,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-21 19:16:00,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 73. [2021-10-21 19:16:00,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 70 states have (on average 1.0714285714285714) internal successors, (75), 72 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:00,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2021-10-21 19:16:00,601 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 58 [2021-10-21 19:16:00,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:16:00,601 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2021-10-21 19:16:00,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:00,602 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2021-10-21 19:16:00,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-21 19:16:00,602 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:16:00,602 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:16:00,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:00,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-21 19:16:00,818 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:16:00,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:00,818 INFO L82 PathProgramCache]: Analyzing trace with hash 251811542, now seen corresponding path program 1 times [2021-10-21 19:16:00,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:00,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30081100] [2021-10-21 19:16:00,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:00,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:00,829 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:16:00,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423154993] [2021-10-21 19:16:00,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:00,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:16:00,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:00,832 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:16:00,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-21 19:16:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:01,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:16:01,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:02,044 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 70 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:02,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:16:02,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30081100] [2021-10-21 19:16:02,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:16:02,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423154993] [2021-10-21 19:16:02,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423154993] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:16:02,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:16:02,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-21 19:16:02,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282078373] [2021-10-21 19:16:02,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:16:02,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:16:02,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:16:02,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:16:02,047 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:02,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:16:02,122 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2021-10-21 19:16:02,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:16:02,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-10-21 19:16:02,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:16:02,123 INFO L225 Difference]: With dead ends: 98 [2021-10-21 19:16:02,124 INFO L226 Difference]: Without dead ends: 92 [2021-10-21 19:16:02,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.8ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:16:02,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-21 19:16:02,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 86. [2021-10-21 19:16:02,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 85 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:02,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-10-21 19:16:02,138 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 59 [2021-10-21 19:16:02,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:16:02,138 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-10-21 19:16:02,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:02,139 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-10-21 19:16:02,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-21 19:16:02,139 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:16:02,139 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:16:02,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:02,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-21 19:16:02,357 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:16:02,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:02,357 INFO L82 PathProgramCache]: Analyzing trace with hash 806249483, now seen corresponding path program 1 times [2021-10-21 19:16:02,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:02,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987483821] [2021-10-21 19:16:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:02,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:02,384 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:16:02,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701055457] [2021-10-21 19:16:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:02,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:16:02,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:02,390 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:16:02,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-21 19:16:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:03,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-21 19:16:03,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:04,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:16:04,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987483821] [2021-10-21 19:16:04,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:16:04,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701055457] [2021-10-21 19:16:04,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701055457] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:16:04,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:16:04,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-21 19:16:04,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51462093] [2021-10-21 19:16:04,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:16:04,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:16:04,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:16:04,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:16:04,676 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:16:05,932 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2021-10-21 19:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-21 19:16:05,933 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-10-21 19:16:05,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:16:05,933 INFO L225 Difference]: With dead ends: 102 [2021-10-21 19:16:05,934 INFO L226 Difference]: Without dead ends: 75 [2021-10-21 19:16:05,934 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 813.0ms TimeCoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2021-10-21 19:16:05,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-21 19:16:05,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2021-10-21 19:16:05,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 72 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:05,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2021-10-21 19:16:05,948 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 60 [2021-10-21 19:16:05,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:16:05,949 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2021-10-21 19:16:05,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:05,949 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2021-10-21 19:16:05,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-21 19:16:05,950 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:16:05,950 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:16:05,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:06,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-21 19:16:06,168 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:16:06,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:06,169 INFO L82 PathProgramCache]: Analyzing trace with hash 69160917, now seen corresponding path program 2 times [2021-10-21 19:16:06,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:06,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422233027] [2021-10-21 19:16:06,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:06,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:06,187 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:16:06,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [226903833] [2021-10-21 19:16:06,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:16:06,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:16:06,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:06,189 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:16:06,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-21 19:16:07,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:16:07,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:16:07,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 70 conjunts are in the unsatisfiable core [2021-10-21 19:16:07,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:09,190 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:09,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:16:09,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422233027] [2021-10-21 19:16:09,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:16:09,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226903833] [2021-10-21 19:16:09,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226903833] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:16:09,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:16:09,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-10-21 19:16:09,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32016075] [2021-10-21 19:16:09,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-21 19:16:09,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:16:09,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-21 19:16:09,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-10-21 19:16:09,194 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:10,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:16:10,556 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2021-10-21 19:16:10,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-21 19:16:10,557 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2021-10-21 19:16:10,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:16:10,557 INFO L225 Difference]: With dead ends: 80 [2021-10-21 19:16:10,557 INFO L226 Difference]: Without dead ends: 78 [2021-10-21 19:16:10,558 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1271.5ms TimeCoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2021-10-21 19:16:10,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-21 19:16:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2021-10-21 19:16:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2021-10-21 19:16:10,568 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 64 [2021-10-21 19:16:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:16:10,569 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2021-10-21 19:16:10,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2021-10-21 19:16:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-21 19:16:10,570 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:16:10,570 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:16:10,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:10,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-21 19:16:10,786 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:16:10,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:10,786 INFO L82 PathProgramCache]: Analyzing trace with hash 880468994, now seen corresponding path program 3 times [2021-10-21 19:16:10,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:10,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381597431] [2021-10-21 19:16:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:10,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:10,798 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:16:10,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1994242525] [2021-10-21 19:16:10,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:16:10,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:16:10,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:10,800 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:16:10,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-21 19:16:12,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-21 19:16:12,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:16:12,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 84 conjunts are in the unsatisfiable core [2021-10-21 19:16:12,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 8 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:15,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:16:15,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381597431] [2021-10-21 19:16:15,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:16:15,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994242525] [2021-10-21 19:16:15,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994242525] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:16:15,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:16:15,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2021-10-21 19:16:15,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889072847] [2021-10-21 19:16:15,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-21 19:16:15,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:16:15,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-21 19:16:15,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-10-21 19:16:15,004 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:17,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:16:17,840 INFO L93 Difference]: Finished difference Result 81 states and 80 transitions. [2021-10-21 19:16:17,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-21 19:16:17,841 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2021-10-21 19:16:17,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:16:17,841 INFO L225 Difference]: With dead ends: 81 [2021-10-21 19:16:17,841 INFO L226 Difference]: Without dead ends: 71 [2021-10-21 19:16:17,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 3164.3ms TimeCoverageRelationStatistics Valid=242, Invalid=1240, Unknown=0, NotChecked=0, Total=1482 [2021-10-21 19:16:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-21 19:16:17,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-21 19:16:17,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0) internal successors, (70), 70 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 70 transitions. [2021-10-21 19:16:17,855 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 70 transitions. Word has length 70 [2021-10-21 19:16:17,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:16:17,855 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 70 transitions. [2021-10-21 19:16:17,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:17,856 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 70 transitions. [2021-10-21 19:16:17,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-21 19:16:17,856 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:16:17,857 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:16:17,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:18,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:16:18,057 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:16:18,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:18,058 INFO L82 PathProgramCache]: Analyzing trace with hash 487441984, now seen corresponding path program 4 times [2021-10-21 19:16:18,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:18,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063818694] [2021-10-21 19:16:18,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:18,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:18,070 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:16:18,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985923911] [2021-10-21 19:16:18,071 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:16:18,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:16:18,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:18,072 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:16:18,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-21 19:16:19,240 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:16:19,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:16:19,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 65 conjunts are in the unsatisfiable core [2021-10-21 19:16:19,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:21,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:16:21,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063818694] [2021-10-21 19:16:21,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:16:21,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985923911] [2021-10-21 19:16:21,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985923911] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:16:21,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:16:21,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2021-10-21 19:16:21,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381151159] [2021-10-21 19:16:21,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-21 19:16:21,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:16:21,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 19:16:21,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-10-21 19:16:21,318 INFO L87 Difference]: Start difference. First operand 71 states and 70 transitions. Second operand has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:22,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:16:22,261 INFO L93 Difference]: Finished difference Result 71 states and 70 transitions. [2021-10-21 19:16:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-21 19:16:22,261 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2021-10-21 19:16:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:16:22,262 INFO L225 Difference]: With dead ends: 71 [2021-10-21 19:16:22,262 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:16:22,262 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 882.6ms TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2021-10-21 19:16:22,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:16:22,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:16:22,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:16:22,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-10-21 19:16:22,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:16:22,263 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:16:22,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:22,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:16:22,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:16:22,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:16:22,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:16:22,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:16:22,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:16:22,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:16:22,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:16:22,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:16:22,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:22,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-21 19:16:22,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:16:22,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:16:22,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:16:22,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:16:22,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:16:22,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:16:22,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:16:22,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:16:23,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:16:23,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:16:39,445 WARN L207 SmtUtils]: Spent 11.06 s on a formula simplification. DAG size of input: 255 DAG size of output: 117 [2021-10-21 19:16:48,306 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:16:48,307 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-21 19:16:48,307 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-10-21 19:16:48,307 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-10-21 19:16:48,307 INFO L853 garLoopResultBuilder]: At program point L36-2(lines 36 44) the Hoare annotation is: (let ((.cse15 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse14 (mod ULTIMATE.start_main_~A~0 4294967296)) (.cse10 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse1 (* 2 .cse10)) (.cse3 (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 .cse10)) .cse14)) (.cse11 (<= 0 .cse15)) (.cse12 (<= .cse15 ULTIMATE.start_main_~r~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse13 (= ULTIMATE.start_main_~d~0 (* 2 (* (div (* ULTIMATE.start_main_~p~0 (- 1)) (- 2)) .cse10)))) (.cse8 (<= .cse10 10)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= 1 .cse10)) (.cse5 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse9 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 .cse14)) (.cse7 (= (* .cse10 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 (<= .cse1 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse8 .cse4 .cse5 .cse9 (<= 1 ULTIMATE.start_main_~p~0) .cse6 (<= ULTIMATE.start_main_~d~0 .cse10) .cse7) (and .cse11 .cse12 .cse0 .cse13 .cse8 .cse2 (= ULTIMATE.start_main_~p~0 16) .cse4 .cse5 .cse9 .cse6) (and .cse12 .cse0 (= .cse1 ULTIMATE.start_main_~d~0) .cse2 .cse3 .cse5 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse6 (= ULTIMATE.start_main_~p~0 2)) (and .cse11 .cse12 .cse0 .cse13 .cse8 .cse2 .cse4 .cse5 .cse9 .cse6 (= ULTIMATE.start_main_~d~0 (* 8 .cse10)) .cse7)))) [2021-10-21 19:16:48,307 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:16:48,307 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:16:48,307 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:16:48,307 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-21 19:16:48,307 INFO L857 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-10-21 19:16:48,307 INFO L857 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-10-21 19:16:48,308 INFO L860 garLoopResultBuilder]: At program point L62(lines 22 63) the Hoare annotation is: true [2021-10-21 19:16:48,308 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:16:48,308 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-10-21 19:16:48,310 INFO L857 garLoopResultBuilder]: For program point L54-2(lines 22 63) no Hoare annotation was computed. [2021-10-21 19:16:48,310 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 46 58) no Hoare annotation was computed. [2021-10-21 19:16:48,310 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:16:48,310 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:16:48,310 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:16:48,310 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse1 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse8 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse9 (* 8 .cse1)) (.cse10 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse11 (* 2 .cse1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= 1 .cse1)) (.cse4 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 (mod ULTIMATE.start_main_~A~0 4294967296))) (.cse7 (= (* .cse1 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 (<= .cse1 10) .cse2 .cse3 .cse4 .cse5 (<= 1 ULTIMATE.start_main_~p~0) .cse6 (<= ULTIMATE.start_main_~d~0 .cse1) .cse7) (and .cse0 .cse8 .cse4 (<= (* 4 .cse1) ULTIMATE.start_main_~r~0) .cse5 (< (div (div (div (div (+ ULTIMATE.start_main_~d~0 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse6 (= ULTIMATE.start_main_~d~0 .cse9) .cse7) (and .cse0 .cse8 (= ULTIMATE.start_main_~p~0 16) .cse4 (< (div (div (div (div (+ .cse10 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse5 .cse6 (<= .cse9 ULTIMATE.start_main_~r~0) .cse7) (and (<= .cse10 ULTIMATE.start_main_~r~0) .cse0 (= .cse11 ULTIMATE.start_main_~d~0) .cse2 .cse4 .cse5 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse6 (= ULTIMATE.start_main_~p~0 2)) (and .cse0 (<= .cse11 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7)))) [2021-10-21 19:16:48,310 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:16:48,311 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse3 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse6 (* 8 .cse3)) (.cse9 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse10 (* 2 .cse3)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (<= 1 .cse3)) (.cse2 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_main_~r~0 (mod ULTIMATE.start_main_~A~0 4294967296))) (.cse7 (= (* .cse3 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 .cse1 .cse2 (<= (* 4 .cse3) ULTIMATE.start_main_~r~0) .cse4 (< (div (div (div (div (+ ULTIMATE.start_main_~d~0 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~d~0 .cse6) .cse7) (and .cse0 (<= .cse3 10) .cse1 .cse8 .cse2 .cse4 (<= 1 ULTIMATE.start_main_~p~0) .cse5 (<= ULTIMATE.start_main_~d~0 .cse3) .cse7) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 16) .cse2 (< (div (div (div (div (+ .cse9 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse4 .cse5 (<= .cse6 ULTIMATE.start_main_~r~0) .cse7) (and (<= .cse9 ULTIMATE.start_main_~r~0) .cse0 (= .cse10 ULTIMATE.start_main_~d~0) .cse1 .cse2 .cse4 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~p~0 2)) (and .cse0 (<= .cse10 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse1 .cse8 .cse2 .cse4 .cse5 .cse7)))) [2021-10-21 19:16:48,311 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:16:48,311 INFO L853 garLoopResultBuilder]: At program point L15-8(line 40) the Hoare annotation is: (let ((.cse3 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse9 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse6 (* 8 .cse3)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (<= 1 .cse3)) (.cse2 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_main_~r~0 (mod ULTIMATE.start_main_~A~0 4294967296))) (.cse7 (= (* .cse3 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 .cse1 .cse2 (<= (* 4 .cse3) ULTIMATE.start_main_~r~0) .cse4 (< (div (div (div (div (+ ULTIMATE.start_main_~d~0 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~d~0 .cse6) .cse7) (and .cse0 (<= .cse3 10) .cse1 .cse8 .cse2 .cse4 (<= 1 ULTIMATE.start_main_~p~0) .cse5 (<= ULTIMATE.start_main_~d~0 .cse3) .cse7) (and (<= .cse9 ULTIMATE.start_main_~r~0) .cse0 .cse1 .cse2 .cse4 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse5 .cse7 (= ULTIMATE.start_main_~p~0 2)) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 16) .cse2 (< (div (div (div (div (+ .cse9 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse4 .cse5 (<= .cse6 ULTIMATE.start_main_~r~0) .cse7) (and .cse0 (<= (* 2 .cse3) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse1 .cse8 .cse2 .cse4 .cse5 .cse7)))) [2021-10-21 19:16:48,311 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:16:48,311 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse30 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse2 (* 2 .cse30)) (.cse33 (* ULTIMATE.start_main_~r~0 (- 1))) (.cse10 (mod ULTIMATE.start_main_~A~0 4294967296))) (let ((.cse25 (= (div (+ .cse33 .cse10) 2) ULTIMATE.start_main_~d~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse32 (* ULTIMATE.start_main_~d~0 (- 1))) (.cse21 (= .cse2 ULTIMATE.start_main_~d~0)) (.cse4 (<= .cse30 10)) (.cse5 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse14 (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 .cse30)) .cse10)) (.cse22 (<= 1 .cse30)) (.cse16 (<= 0 ULTIMATE.start_main_~r~0)) (.cse1 (* 4 .cse30)) (.cse11 (* 8 .cse30))) (let ((.cse3 (= ULTIMATE.start_main_~p~0 4)) (.cse23 (= ULTIMATE.start_main_~q~0 8)) (.cse24 (<= .cse11 .cse10)) (.cse28 (div (+ .cse33 10) 4294967296)) (.cse9 (or (and .cse0 .cse21 .cse5 .cse14 .cse16 .cse25) (and .cse0 (< 0 (+ (div (+ .cse32 (* .cse30 (- 4)) 10) 4294967296) 1)) .cse21 .cse4 .cse5 .cse14 .cse22 .cse16 (< ULTIMATE.start_main_~r~0 .cse1)))) (.cse26 (< .cse10 .cse1)) (.cse13 (<= .cse10 10)) (.cse29 (= ULTIMATE.start_main_~d~0 .cse11)) (.cse15 (= ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (.cse27 (<= .cse2 .cse10)) (.cse17 (+ ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0)) (.cse18 (= (* .cse30 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0)) (.cse31 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse19 (= ULTIMATE.start_main_~p~0 1)) (.cse20 (= ULTIMATE.start_main_~d~0 .cse30)) (.cse6 (= ULTIMATE.start_main_~q~0 0)) (.cse7 (= ULTIMATE.start_main_~r~0 .cse10)) (.cse8 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~d~0)) (.cse12 (= ULTIMATE.start_main_~p~0 2))) (or (and .cse0 (= .cse1 ULTIMATE.start_main_~d~0) (<= .cse2 ULTIMATE.start_main_~r~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 (< .cse10 .cse11) (= (+ .cse1 ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0) .cse10) .cse12) (and .cse0 .cse3 .cse5 .cse13 .cse14 .cse15 .cse16 (< .cse17 .cse11) .cse18) (and .cse0 (= .cse17 .cse10) .cse19 .cse4 .cse15 .cse16 .cse20 .cse8 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and (or (and .cse0 .cse21 .cse4 .cse5 .cse13 .cse14 .cse22 .cse16 (= ULTIMATE.start_main_~q~0 10)) (and .cse0 .cse21 .cse4 .cse5 .cse13 .cse14 .cse23 .cse22 .cse24)) .cse8 .cse12) (and .cse0 .cse3 .cse4 .cse5 .cse13 .cse14 .cse23 .cse22 .cse24 .cse25) (and .cse0 .cse26 .cse19 .cse4 .cse5 .cse14 .cse20 (= ULTIMATE.start_main_~q~0 3) .cse27) (and .cse0 .cse5 (= ULTIMATE.start_main_~p~0 16) (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) .cse28) .cse6 .cse7 (<= .cse11 ULTIMATE.start_main_~r~0) .cse8 .cse18) (and .cse0 .cse5 .cse13 .cse14 .cse15 .cse29 .cse18 .cse24 (< .cse17 (* 16 .cse30))) (and (< 0 (+ .cse28 1)) .cse0 .cse19 .cse4 .cse5 .cse13 .cse14 .cse22 .cse20) (and (= ULTIMATE.start_main_~q~0 4) .cse9 .cse13 .cse8 .cse12) (and .cse0 (= (+ .cse2 ULTIMATE.start_main_~r~0) .cse10) .cse31 (= ULTIMATE.start_main_~q~0 2) .cse26 .cse19 .cse4 .cse27 .cse25) (and .cse0 .cse31 .cse19 .cse4 .cse22 .cse20 .cse6 .cse7) (and .cse0 .cse5 .cse13 (<= .cse1 ULTIMATE.start_main_~r~0) .cse6 .cse7 .cse29 .cse8 .cse18) (and .cse0 .cse4 .cse5 .cse14 .cse15 .cse27 (< .cse17 .cse1) .cse18 .cse12) (and .cse31 .cse19 .cse4 .cse20 .cse6 .cse7 (< ULTIMATE.start_main_~r~0 .cse30)) (and (<= (div .cse32 (- 2)) ULTIMATE.start_main_~r~0) .cse0 .cse21 .cse4 .cse5 .cse6 .cse7 .cse8 .cse12)))))) [2021-10-21 19:16:48,311 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:16:48,312 INFO L853 garLoopResultBuilder]: At program point L15-14(line 50) the Hoare annotation is: (let ((.cse32 (* ULTIMATE.start_main_~r~0 (- 1))) (.cse9 (mod ULTIMATE.start_main_~A~0 4294967296)) (.cse30 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse2 (* 2 .cse30)) (.cse10 (* 8 .cse30)) (.cse24 (= (div (+ .cse32 .cse9) 2) ULTIMATE.start_main_~d~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse31 (* ULTIMATE.start_main_~d~0 (- 1))) (.cse4 (<= .cse30 10)) (.cse5 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse13 (<= .cse9 10)) (.cse14 (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 .cse30)) .cse9)) (.cse16 (<= 1 .cse30)) (.cse26 (<= 0 ULTIMATE.start_main_~r~0)) (.cse1 (* 4 .cse30)) (.cse18 (= (* .cse30 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (let ((.cse11 (or (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse16 .cse26 .cse18 .cse24) (and .cse0 (< 0 (+ (div (+ .cse31 (* .cse30 (- 4)) 10) 4294967296) 1)) .cse4 .cse5 .cse13 .cse14 .cse16 .cse26 (< ULTIMATE.start_main_~r~0 .cse1) .cse18))) (.cse20 (div (+ .cse32 10) 4294967296)) (.cse25 (= ULTIMATE.start_main_~q~0 8)) (.cse19 (<= .cse10 .cse9)) (.cse22 (< .cse9 .cse1)) (.cse3 (= ULTIMATE.start_main_~p~0 4)) (.cse17 (= ULTIMATE.start_main_~d~0 .cse10)) (.cse15 (= ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (.cse23 (<= .cse2 .cse9)) (.cse28 (+ ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0)) (.cse27 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse29 (= ULTIMATE.start_main_~p~0 1)) (.cse21 (= ULTIMATE.start_main_~d~0 .cse30)) (.cse6 (= ULTIMATE.start_main_~q~0 0)) (.cse7 (= ULTIMATE.start_main_~r~0 .cse9)) (.cse8 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~d~0)) (.cse12 (= ULTIMATE.start_main_~p~0 2))) (or (and .cse0 (= .cse1 ULTIMATE.start_main_~d~0) (<= .cse2 ULTIMATE.start_main_~r~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and (< .cse9 .cse10) (= (+ .cse1 ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0) .cse9) .cse11 .cse12) (and (= ULTIMATE.start_main_~q~0 4) .cse8 .cse11 .cse12) (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (and (< 0 (+ .cse20 1)) .cse0 .cse4 .cse5 .cse13 .cse14 .cse16 .cse21 .cse18) (and .cse0 .cse5 (= ULTIMATE.start_main_~p~0 16) (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) .cse20) .cse6 .cse7 (<= .cse10 ULTIMATE.start_main_~r~0) .cse8 .cse18) (and .cse0 (= (+ .cse2 ULTIMATE.start_main_~r~0) .cse9) (= ULTIMATE.start_main_~q~0 2) .cse22 .cse4 .cse5 .cse23 .cse18 .cse24) (and .cse8 (or (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse25 .cse16 .cse18 .cse19) (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse16 .cse26 (= ULTIMATE.start_main_~q~0 10) .cse18)) .cse12) (and .cse0 .cse27 (= .cse28 .cse9) .cse29 .cse4 .cse15 .cse26 .cse21 .cse8) (and .cse0 .cse27 .cse29 .cse4 .cse16 .cse21 .cse6 .cse7) (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse25 .cse16 .cse18 .cse19 .cse24) (and .cse0 .cse22 .cse4 .cse5 .cse14 .cse21 (= ULTIMATE.start_main_~q~0 3) .cse23 .cse18) (and .cse0 .cse3 (<= .cse1 .cse9) .cse4 .cse5 .cse13 .cse14 .cse15 .cse16 (< .cse28 .cse10) .cse18) (and .cse0 .cse5 .cse13 (<= .cse1 ULTIMATE.start_main_~r~0) .cse6 .cse7 .cse17 .cse8 .cse18) (and .cse0 .cse4 .cse5 .cse14 .cse15 .cse23 (< .cse28 .cse1) .cse18 .cse12) (and .cse27 .cse29 .cse4 .cse21 .cse6 .cse7 (< ULTIMATE.start_main_~r~0 .cse30)) (and (<= (div .cse31 (- 2)) ULTIMATE.start_main_~r~0) .cse0 (= .cse2 ULTIMATE.start_main_~d~0) .cse4 .cse5 .cse6 .cse7 .cse8 .cse12))))) [2021-10-21 19:16:48,312 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:16:48,312 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:16:48,312 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~d~0 (mod ULTIMATE.start_main_~B~0 4294967296)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-21 19:16:48,313 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:16:48,313 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-10-21 19:16:48,313 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:16:48,313 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:16:48,313 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:16:48,314 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:16:48,314 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:16:48,314 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:16:48,314 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:16:48,314 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:16:48,314 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:16:48,314 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:16:48,319 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:16:48,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:16:48 BoogieIcfgContainer [2021-10-21 19:16:48,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:16:48,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:16:48,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:16:48,391 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:16:48,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:11:49" (3/4) ... [2021-10-21 19:16:48,395 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:16:48,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-21 19:16:48,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:16:48,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:16:48,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:16:48,465 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:16:48,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:16:48,466 INFO L168 Benchmark]: Toolchain (without parser) took 299293.22 ms. Allocated memory was 94.4 MB in the beginning and 293.6 MB in the end (delta: 199.2 MB). Free memory was 63.0 MB in the beginning and 106.7 MB in the end (delta: -43.7 MB). Peak memory consumption was 154.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:48,466 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 94.4 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:16:48,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.94 ms. Allocated memory is still 94.4 MB. Free memory was 62.8 MB in the beginning and 69.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:48,467 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.00 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 68.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:48,467 INFO L168 Benchmark]: Boogie Preprocessor took 43.34 ms. Allocated memory is still 94.4 MB. Free memory was 68.0 MB in the beginning and 66.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:48,468 INFO L168 Benchmark]: RCFGBuilder took 443.08 ms. Allocated memory is still 94.4 MB. Free memory was 66.6 MB in the beginning and 55.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:48,468 INFO L168 Benchmark]: TraceAbstraction took 298423.60 ms. Allocated memory was 94.4 MB in the beginning and 293.6 MB in the end (delta: 199.2 MB). Free memory was 55.2 MB in the beginning and 111.9 MB in the end (delta: -56.7 MB). Peak memory consumption was 213.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:48,469 INFO L168 Benchmark]: Witness Printer took 74.24 ms. Allocated memory is still 293.6 MB. Free memory was 111.9 MB in the beginning and 106.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:48,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 94.4 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 264.94 ms. Allocated memory is still 94.4 MB. Free memory was 62.8 MB in the beginning and 69.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.00 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 68.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.34 ms. Allocated memory is still 94.4 MB. Free memory was 68.0 MB in the beginning and 66.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 443.08 ms. Allocated memory is still 94.4 MB. Free memory was 66.6 MB in the beginning and 55.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 298423.60 ms. Allocated memory was 94.4 MB in the beginning and 293.6 MB in the end (delta: 199.2 MB). Free memory was 55.2 MB in the beginning and 111.9 MB in the end (delta: -56.7 MB). Peak memory consumption was 213.1 MB. Max. memory is 16.1 GB. * Witness Printer took 74.24 ms. Allocated memory is still 293.6 MB. Free memory was 111.9 MB in the beginning and 106.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: 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, 43 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 298260.6ms, OverallIterations: 27, TraceHistogramMax: 5, EmptinessCheckTime: 36.4ms, AutomataDifference: 185953.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 25836.4ms, InitialAbstractionConstructionTime: 8.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 694 SDtfs, 2336 SDslu, 2527 SDs, 0 SdLazy, 7729 SolverSat, 1044 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 38251.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1273 GetRequests, 823 SyntacticMatches, 3 SemanticMatches, 447 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1774 ImplicationChecksByTransitivity, 162464.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=15, InterpolantAutomatonStates: 347, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 316.0ms AutomataMinimizationTime, 27 MinimizatonAttempts, 247 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 75 NumberOfFragments, 3206 HoareAnnotationTreeSize, 9 FomulaSimplifications, 144925 FormulaSimplificationTreeSizeReduction, 648.8ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 61686 FormulaSimplificationTreeSizeReductionInter, 25178.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 177.1ms SsaConstructionTime, 1476.5ms SatisfiabilityAnalysisTime, 67752.0ms InterpolantComputationTime, 1106 NumberOfCodeBlocks, 1038 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 1079 ConstructedInterpolants, 0 QuantifiedInterpolants, 21264 SizeOfPredicates, 219 NumberOfNonLiveVariables, 3647 ConjunctsInSsa, 837 ConjunctsInUnsatCore, 27 InterpolantComputations, 7 PerfectInterpolantSequences, 290/1121 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 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((cond == 1 && 4 * (B % 4294967296) == d) && 2 * (B % 4294967296) <= r) && p == 4) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) || (((((((((cond == 1 && 2 * (B % 4294967296) == d) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 0 <= r) && (r * -1 + A % 4294967296) / 2 == d) || ((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296))) && A % 4294967296 < 8 * (B % 4294967296)) && 4 * (B % 4294967296) + d + r == A % 4294967296) && p == 2)) || ((((((((cond == 1 && p == 4) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 0 <= r) && d + r < 8 * (B % 4294967296)) && B % 4294967296 * p == d)) || ((((((((cond == 1 && d + r == A % 4294967296) && p == 1) && B % 4294967296 <= 10) && q == p) && 0 <= r) && d == B % 4294967296) && r < d) && !(0 == cond))) || (((((((((((cond == 1 && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && q == 10) || ((((((((cond == 1 && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && 8 * (B % 4294967296) <= A % 4294967296)) && r < d) && p == 2)) || (((((((((cond == 1 && p == 4) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && 8 * (B % 4294967296) <= A % 4294967296) && (r * -1 + A % 4294967296) / 2 == d)) || ((((((((cond == 1 && A % 4294967296 < 4 * (B % 4294967296)) && p == 1) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && d == B % 4294967296) && q == 3) && 2 * (B % 4294967296) <= A % 4294967296)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296) && d + r < 16 * (B % 4294967296))) || ((((((((0 < (r * -1 + 10) / 4294967296 + 1 && cond == 1) && p == 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && d == B % 4294967296)) || ((((q == 4 && ((((((cond == 1 && 2 * (B % 4294967296) == d) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 0 <= r) && (r * -1 + A % 4294967296) / 2 == d) || ((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296)))) && A % 4294967296 <= 10) && r < d) && p == 2)) || ((((((((cond == 1 && 2 * (B % 4294967296) + r == A % 4294967296) && 1 <= cond) && q == 2) && A % 4294967296 < 4 * (B % 4294967296)) && p == 1) && B % 4294967296 <= 10) && 2 * (B % 4294967296) <= A % 4294967296) && (r * -1 + A % 4294967296) / 2 == d)) || (((((((cond == 1 && 1 <= cond) && p == 1) && B % 4294967296 <= 10) && 1 <= B % 4294967296) && d == B % 4294967296) && q == 0) && r == A % 4294967296)) || ((((((((cond == 1 && 1 == cond) && A % 4294967296 <= 10) && 4 * (B % 4294967296) <= r) && q == 0) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 2 * (B % 4294967296) <= A % 4294967296) && d + r < 4 * (B % 4294967296)) && B % 4294967296 * p == d) && p == 2)) || ((((((1 <= cond && p == 1) && B % 4294967296 <= 10) && d == B % 4294967296) && q == 0) && r == A % 4294967296) && r < B % 4294967296)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) && p == 2) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (p == 1 && d == B % 4294967296) && !(0 == cond) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((cond == 1 && 4 * (B % 4294967296) == d) && 2 * (B % 4294967296) <= r) && p == 4) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) || (((A % 4294967296 < 8 * (B % 4294967296) && 4 * (B % 4294967296) + d + r == A % 4294967296) && (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && B % 4294967296 * p == d) && (r * -1 + A % 4294967296) / 2 == d) || (((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296)) && B % 4294967296 * p == d))) && p == 2)) || (((q == 4 && r < d) && (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && B % 4294967296 * p == d) && (r * -1 + A % 4294967296) / 2 == d) || (((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296)) && B % 4294967296 * p == d))) && p == 2)) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 1 <= B % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296)) || ((((((((0 < (r * -1 + 10) / 4294967296 + 1 && cond == 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && d == B % 4294967296) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 2 * (B % 4294967296) + r == A % 4294967296) && q == 2) && A % 4294967296 < 4 * (B % 4294967296)) && B % 4294967296 <= 10) && 1 == cond) && 2 * (B % 4294967296) <= A % 4294967296) && B % 4294967296 * p == d) && (r * -1 + A % 4294967296) / 2 == d)) || ((r < d && (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && q == 10) && B % 4294967296 * p == d))) && p == 2)) || ((((((((cond == 1 && 1 <= cond) && d + r == A % 4294967296) && p == 1) && B % 4294967296 <= 10) && q == p) && 0 <= r) && d == B % 4294967296) && r < d)) || (((((((cond == 1 && 1 <= cond) && p == 1) && B % 4294967296 <= 10) && 1 <= B % 4294967296) && d == B % 4294967296) && q == 0) && r == A % 4294967296)) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296) && (r * -1 + A % 4294967296) / 2 == d)) || ((((((((cond == 1 && A % 4294967296 < 4 * (B % 4294967296)) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && d == B % 4294967296) && q == 3) && 2 * (B % 4294967296) <= A % 4294967296) && B % 4294967296 * p == d)) || ((((((((((cond == 1 && p == 4) && 4 * (B % 4294967296) <= A % 4294967296) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 1 <= B % 4294967296) && d + r < 8 * (B % 4294967296)) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && A % 4294967296 <= 10) && 4 * (B % 4294967296) <= r) && q == 0) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 2 * (B % 4294967296) <= A % 4294967296) && d + r < 4 * (B % 4294967296)) && B % 4294967296 * p == d) && p == 2)) || ((((((1 <= cond && p == 1) && B % 4294967296 <= 10) && d == B % 4294967296) && q == 0) && r == A % 4294967296) && r < B % 4294967296)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) && p == 2) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && 4 * (B % 4294967296) <= r) && q == 0) && (d + -8) / 2 / 2 / 2 / -4294967296 < 1) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((d * -1 / -2 <= r && cond == 1) && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && B % 4294967296 * p == d) && p == 2)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d * -1 / -2 + -8) / 2 / 2 / 2 / -4294967296 < 1) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && B % 4294967296 * p == d) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && 4 * (B % 4294967296) <= r) && q == 0) && (d + -8) / 2 / 2 / 2 / -4294967296 < 1) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d * -1 / -2 + -8) / 2 / 2 / 2 / -4294967296 < 1) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && B % 4294967296 * p == d)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && p == 2)) || ((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && B % 4294967296 * p == d) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d) || ((((((((cond == 1 && 1 <= cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && 4 * (B % 4294967296) <= r) && q == 0) && (d + -8) / 2 / 2 / 2 / -4294967296 < 1) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 <= cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d * -1 / -2 + -8) / 2 / 2 / 2 / -4294967296 < 1) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && B % 4294967296 * p == d)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && p == 2)) || ((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && B % 4294967296 * p == d) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && r == A % 4294967296) && B % 4294967296 * p == d) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((((0 <= d * -1 / -2 && d * -1 / -2 <= r) && cond == 1) && d == 2 * (p * -1 / -2 * (B % 4294967296))) && B % 4294967296 <= 10) && 1 == cond) && p == 16) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && p == 2)) || (((((((((((0 <= d * -1 / -2 && d * -1 / -2 <= r) && cond == 1) && d == 2 * (p * -1 / -2 * (B % 4294967296))) && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) RESULT: Ultimate proved your program to be correct! [2021-10-21 19:16:48,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38dae9d9-f8f2-41ce-950f-d98b043e757a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...