./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/avg20-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/reducercommutativity/avg20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 61bc8e70ac867c6ac52806e5ae8f7e7cefd73775be941aab831dd9bf86f7dc88 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:50:44,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:50:44,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:50:44,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:50:44,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:50:44,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:50:44,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:50:44,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:50:44,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:50:44,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:50:44,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:50:44,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:50:44,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:50:44,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:50:44,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:50:44,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:50:44,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:50:44,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:50:44,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:50:44,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:50:44,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:50:44,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:50:44,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:50:44,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:50:44,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:50:44,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:50:44,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:50:44,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:50:44,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:50:44,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:50:44,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:50:44,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:50:44,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:50:44,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:50:44,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:50:44,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:50:44,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:50:44,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:50:44,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:50:44,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:50:44,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:50:44,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 18:50:45,020 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:50:45,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:50:45,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:50:45,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:50:45,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:50:45,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:50:45,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:50:45,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:50:45,022 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:50:45,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:50:45,022 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:50:45,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:50:45,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:50:45,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:50:45,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:50:45,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:50:45,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:50:45,028 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:50:45,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:50:45,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:50:45,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:50:45,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:50:45,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:50:45,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:50:45,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:50:45,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:50:45,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:50:45,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:50:45,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:50:45,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:50:45,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:50:45,030 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:50:45,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:50:45,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:50:45,030 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_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61bc8e70ac867c6ac52806e5ae8f7e7cefd73775be941aab831dd9bf86f7dc88 [2021-12-06 18:50:45,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:50:45,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:50:45,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:50:45,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:50:45,220 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:50:45,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/reducercommutativity/avg20-2.i [2021-12-06 18:50:45,265 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/data/0e15634ba/01dd11bca6c6411f8ed16ce992028644/FLAGa0eb43d27 [2021-12-06 18:50:45,647 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:50:45,648 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/sv-benchmarks/c/reducercommutativity/avg20-2.i [2021-12-06 18:50:45,653 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/data/0e15634ba/01dd11bca6c6411f8ed16ce992028644/FLAGa0eb43d27 [2021-12-06 18:50:45,662 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/data/0e15634ba/01dd11bca6c6411f8ed16ce992028644 [2021-12-06 18:50:45,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:50:45,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:50:45,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:50:45,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:50:45,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:50:45,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c519c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45, skipping insertion in model container [2021-12-06 18:50:45,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:50:45,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:50:45,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/sv-benchmarks/c/reducercommutativity/avg20-2.i[1282,1295] [2021-12-06 18:50:45,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:50:45,832 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:50:45,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/sv-benchmarks/c/reducercommutativity/avg20-2.i[1282,1295] [2021-12-06 18:50:45,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:50:45,856 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:50:45,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45 WrapperNode [2021-12-06 18:50:45,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:50:45,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:50:45,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:50:45,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:50:45,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,881 INFO L137 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2021-12-06 18:50:45,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:50:45,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:50:45,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:50:45,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:50:45,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:50:45,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:50:45,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:50:45,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:50:45,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (1/1) ... [2021-12-06 18:50:45,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:50:45,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:45,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:50:45,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:50:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:50:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:50:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:50:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:50:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2021-12-06 18:50:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2021-12-06 18:50:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:50:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:50:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:50:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:50:46,014 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:50:46,015 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:50:46,116 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:50:46,121 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:50:46,121 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 18:50:46,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:50:46 BoogieIcfgContainer [2021-12-06 18:50:46,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:50:46,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:50:46,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:50:46,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:50:46,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:50:45" (1/3) ... [2021-12-06 18:50:46,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df06ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:50:46, skipping insertion in model container [2021-12-06 18:50:46,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:50:45" (2/3) ... [2021-12-06 18:50:46,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df06ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:50:46, skipping insertion in model container [2021-12-06 18:50:46,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:50:46" (3/3) ... [2021-12-06 18:50:46,129 INFO L111 eAbstractionObserver]: Analyzing ICFG avg20-2.i [2021-12-06 18:50:46,133 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:50:46,133 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:50:46,171 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:50:46,177 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:50:46,177 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 18:50:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 21 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 18:50:46,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:46,195 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:46,195 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:46,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:46,200 INFO L85 PathProgramCache]: Analyzing trace with hash -2001158789, now seen corresponding path program 1 times [2021-12-06 18:50:46,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:46,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970012072] [2021-12-06 18:50:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:46,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:50:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 18:50:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 18:50:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:46,379 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-06 18:50:46,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:46,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970012072] [2021-12-06 18:50:46,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970012072] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:46,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242057834] [2021-12-06 18:50:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:46,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:46,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:46,383 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:46,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 18:50:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:46,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:50:46,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 18:50:46,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:50:46,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242057834] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:50:46,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:50:46,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-06 18:50:46,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327146175] [2021-12-06 18:50:46,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:50:46,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:50:46,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:46,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:50:46,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:50:46,543 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 21 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 18:50:46,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:46,565 INFO L93 Difference]: Finished difference Result 50 states and 69 transitions. [2021-12-06 18:50:46,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:50:46,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-12-06 18:50:46,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:46,573 INFO L225 Difference]: With dead ends: 50 [2021-12-06 18:50:46,573 INFO L226 Difference]: Without dead ends: 24 [2021-12-06 18:50:46,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:50:46,578 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:46,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:46,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-12-06 18:50:46,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-12-06 18:50:46,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-06 18:50:46,606 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 28 [2021-12-06 18:50:46,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:46,607 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-06 18:50:46,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 18:50:46,607 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-12-06 18:50:46,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 18:50:46,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:46,609 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:46,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:50:46,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-06 18:50:46,810 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:46,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:46,812 INFO L85 PathProgramCache]: Analyzing trace with hash 202333565, now seen corresponding path program 1 times [2021-12-06 18:50:46,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:46,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017765835] [2021-12-06 18:50:46,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:46,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:46,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 18:50:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:46,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 18:50:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 18:50:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 18:50:46,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:46,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017765835] [2021-12-06 18:50:46,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017765835] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:46,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302981512] [2021-12-06 18:50:46,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:46,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:46,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:46,990 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:46,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 18:50:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:47,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:50:47,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 18:50:47,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:50:47,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302981512] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:50:47,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:50:47,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-06 18:50:47,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906647644] [2021-12-06 18:50:47,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:50:47,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:50:47,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:47,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:50:47,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:50:47,072 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 18:50:47,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:47,082 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2021-12-06 18:50:47,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:50:47,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2021-12-06 18:50:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:47,084 INFO L225 Difference]: With dead ends: 42 [2021-12-06 18:50:47,084 INFO L226 Difference]: Without dead ends: 25 [2021-12-06 18:50:47,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:50:47,087 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:47,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:47,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-12-06 18:50:47,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-12-06 18:50:47,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:47,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-12-06 18:50:47,094 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 30 [2021-12-06 18:50:47,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:47,094 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-06 18:50:47,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 18:50:47,095 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-12-06 18:50:47,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 18:50:47,096 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:47,096 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:47,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 18:50:47,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:47,298 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:47,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:47,300 INFO L85 PathProgramCache]: Analyzing trace with hash -796008709, now seen corresponding path program 1 times [2021-12-06 18:50:47,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:47,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295456716] [2021-12-06 18:50:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:47,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:47,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 18:50:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:47,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:50:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:47,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:50:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 18:50:47,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:47,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295456716] [2021-12-06 18:50:47,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295456716] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:47,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346728098] [2021-12-06 18:50:47,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:47,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:47,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:47,547 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:47,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 18:50:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:47,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:50:47,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-06 18:50:47,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:50:47,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346728098] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:50:47,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:50:47,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-12-06 18:50:47,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791845108] [2021-12-06 18:50:47,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:50:47,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:50:47,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:47,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:50:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:50:47,628 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 18:50:47,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:47,636 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2021-12-06 18:50:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:50:47,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2021-12-06 18:50:47,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:47,637 INFO L225 Difference]: With dead ends: 39 [2021-12-06 18:50:47,637 INFO L226 Difference]: Without dead ends: 26 [2021-12-06 18:50:47,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:50:47,639 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:47,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:47,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-12-06 18:50:47,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-12-06 18:50:47,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:47,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-12-06 18:50:47,643 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 36 [2021-12-06 18:50:47,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:47,644 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-12-06 18:50:47,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 18:50:47,644 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-12-06 18:50:47,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 18:50:47,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:47,646 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:47,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 18:50:47,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:47,847 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:47,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:47,848 INFO L85 PathProgramCache]: Analyzing trace with hash 165229081, now seen corresponding path program 1 times [2021-12-06 18:50:47,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:47,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289986788] [2021-12-06 18:50:47,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:47,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:47,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 18:50:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:47,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:50:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:47,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 18:50:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:47,976 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-06 18:50:47,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:47,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289986788] [2021-12-06 18:50:47,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289986788] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:47,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893538691] [2021-12-06 18:50:47,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:47,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:47,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:47,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 18:50:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:48,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:50:48,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:48,080 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-06 18:50:48,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:50:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-06 18:50:48,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893538691] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:50:48,135 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:50:48,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2021-12-06 18:50:48,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827056922] [2021-12-06 18:50:48,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:50:48,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:50:48,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:48,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:50:48,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:50:48,136 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-06 18:50:48,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:48,163 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2021-12-06 18:50:48,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:50:48,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 38 [2021-12-06 18:50:48,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:48,164 INFO L225 Difference]: With dead ends: 54 [2021-12-06 18:50:48,164 INFO L226 Difference]: Without dead ends: 34 [2021-12-06 18:50:48,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:50:48,165 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:48,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 102 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:48,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-12-06 18:50:48,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-12-06 18:50:48,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:48,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2021-12-06 18:50:48,170 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 38 [2021-12-06 18:50:48,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:48,170 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-12-06 18:50:48,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-06 18:50:48,171 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2021-12-06 18:50:48,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 18:50:48,172 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:48,172 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:48,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 18:50:48,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:48,373 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:48,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:48,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1299679203, now seen corresponding path program 2 times [2021-12-06 18:50:48,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:48,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694330617] [2021-12-06 18:50:48,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:48,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:48,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:50:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 18:50:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 18:50:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-12-06 18:50:48,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694330617] [2021-12-06 18:50:48,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694330617] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349279511] [2021-12-06 18:50:48,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 18:50:48,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:48,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:48,509 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:48,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 18:50:48,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 18:50:48,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:50:48,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 18:50:48,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-06 18:50:48,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:50:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-06 18:50:48,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349279511] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:50:48,719 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:50:48,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2021-12-06 18:50:48,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817444931] [2021-12-06 18:50:48,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:50:48,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 18:50:48,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:48,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 18:50:48,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-12-06 18:50:48,721 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 18:50:48,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:48,760 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2021-12-06 18:50:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:50:48,761 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 50 [2021-12-06 18:50:48,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:48,762 INFO L225 Difference]: With dead ends: 70 [2021-12-06 18:50:48,762 INFO L226 Difference]: Without dead ends: 48 [2021-12-06 18:50:48,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-12-06 18:50:48,764 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:48,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 80 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:48,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-12-06 18:50:48,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2021-12-06 18:50:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 42 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:48,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2021-12-06 18:50:48,769 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 50 [2021-12-06 18:50:48,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:48,770 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2021-12-06 18:50:48,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 18:50:48,770 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2021-12-06 18:50:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-06 18:50:48,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:48,771 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:48,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-06 18:50:48,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:48,972 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:48,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:48,974 INFO L85 PathProgramCache]: Analyzing trace with hash 936210247, now seen corresponding path program 3 times [2021-12-06 18:50:48,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:48,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216574711] [2021-12-06 18:50:48,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:48,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:49,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 18:50:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:49,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 18:50:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:49,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 18:50:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-06 18:50:49,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:49,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216574711] [2021-12-06 18:50:49,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216574711] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:49,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536937914] [2021-12-06 18:50:49,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 18:50:49,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:49,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:49,200 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:49,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 18:50:49,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-06 18:50:49,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:50:49,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:50:49,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:49,313 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-12-06 18:50:49,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:50:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-12-06 18:50:49,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536937914] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:50:49,380 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:50:49,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2021-12-06 18:50:49,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072667326] [2021-12-06 18:50:49,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:50:49,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 18:50:49,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:49,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 18:50:49,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2021-12-06 18:50:49,382 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:50:49,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:49,418 INFO L93 Difference]: Finished difference Result 82 states and 97 transitions. [2021-12-06 18:50:49,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 18:50:49,419 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2021-12-06 18:50:49,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:49,420 INFO L225 Difference]: With dead ends: 82 [2021-12-06 18:50:49,420 INFO L226 Difference]: Without dead ends: 58 [2021-12-06 18:50:49,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2021-12-06 18:50:49,421 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:49,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 102 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:49,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-12-06 18:50:49,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2021-12-06 18:50:49,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 52 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:49,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-12-06 18:50:49,427 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 64 [2021-12-06 18:50:49,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:49,427 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-12-06 18:50:49,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:50:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-12-06 18:50:49,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-06 18:50:49,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:49,429 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 11, 11, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:49,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-06 18:50:49,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-06 18:50:49,631 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:49,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:49,633 INFO L85 PathProgramCache]: Analyzing trace with hash 161581377, now seen corresponding path program 4 times [2021-12-06 18:50:49,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:49,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642603589] [2021-12-06 18:50:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:49,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:49,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:50:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:49,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 18:50:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:49,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:50:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:49,870 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-12-06 18:50:49,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:49,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642603589] [2021-12-06 18:50:49,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642603589] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:49,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179862920] [2021-12-06 18:50:49,870 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 18:50:49,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:49,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:49,871 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:49,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 18:50:49,938 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 18:50:49,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:50:49,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:50:49,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 178 proven. 4 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2021-12-06 18:50:50,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:50:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2021-12-06 18:50:50,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179862920] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:50:50,123 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:50:50,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 20 [2021-12-06 18:50:50,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536718727] [2021-12-06 18:50:50,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:50:50,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-06 18:50:50,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:50,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-06 18:50:50,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-12-06 18:50:50,126 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:50:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:50,169 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2021-12-06 18:50:50,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 18:50:50,170 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 90 [2021-12-06 18:50:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:50,170 INFO L225 Difference]: With dead ends: 100 [2021-12-06 18:50:50,170 INFO L226 Difference]: Without dead ends: 68 [2021-12-06 18:50:50,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-12-06 18:50:50,172 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 21 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:50,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 81 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:50,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-06 18:50:50,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2021-12-06 18:50:50,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.0483870967741935) internal successors, (65), 62 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:50,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2021-12-06 18:50:50,178 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 90 [2021-12-06 18:50:50,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:50,178 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2021-12-06 18:50:50,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:50:50,178 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2021-12-06 18:50:50,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-06 18:50:50,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:50,180 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 12, 12, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:50,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-06 18:50:50,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:50,381 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:50,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:50,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1010910917, now seen corresponding path program 5 times [2021-12-06 18:50:50,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:50,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099048295] [2021-12-06 18:50:50,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:50,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 18:50:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:50:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 18:50:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2021-12-06 18:50:50,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:50,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099048295] [2021-12-06 18:50:50,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099048295] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:50,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556480030] [2021-12-06 18:50:50,526 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 18:50:50,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:50,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:50,527 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:50,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 18:50:51,943 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2021-12-06 18:50:51,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:50:51,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 18:50:51,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-12-06 18:50:52,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:50:52,187 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2021-12-06 18:50:52,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556480030] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:50:52,187 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:50:52,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 29 [2021-12-06 18:50:52,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416701381] [2021-12-06 18:50:52,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:50:52,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-12-06 18:50:52,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:52,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-06 18:50:52,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2021-12-06 18:50:52,189 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 29 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:50:52,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:52,244 INFO L93 Difference]: Finished difference Result 126 states and 145 transitions. [2021-12-06 18:50:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-06 18:50:52,244 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 29 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 100 [2021-12-06 18:50:52,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:52,245 INFO L225 Difference]: With dead ends: 126 [2021-12-06 18:50:52,245 INFO L226 Difference]: Without dead ends: 86 [2021-12-06 18:50:52,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2021-12-06 18:50:52,247 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 27 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:52,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 142 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:52,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-12-06 18:50:52,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2021-12-06 18:50:52,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 80 states have (on average 1.0375) internal successors, (83), 80 states have internal predecessors, (83), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:52,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2021-12-06 18:50:52,257 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 100 [2021-12-06 18:50:52,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:52,257 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2021-12-06 18:50:52,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 29 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:50:52,257 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2021-12-06 18:50:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-06 18:50:52,260 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:52,260 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 13, 13, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:52,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 18:50:52,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:52,462 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:52,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:52,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1009519917, now seen corresponding path program 6 times [2021-12-06 18:50:52,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:52,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838501248] [2021-12-06 18:50:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:52,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:52,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 18:50:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:52,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 18:50:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:52,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 18:50:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 1899 trivial. 0 not checked. [2021-12-06 18:50:52,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:52,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838501248] [2021-12-06 18:50:52,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838501248] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:52,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182239329] [2021-12-06 18:50:52,645 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 18:50:52,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:52,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:52,645 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:52,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 18:50:53,052 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2021-12-06 18:50:53,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:50:53,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 18:50:53,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 850 proven. 36 refuted. 0 times theorem prover too weak. 1182 trivial. 0 not checked. [2021-12-06 18:50:53,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:50:53,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 2032 trivial. 0 not checked. [2021-12-06 18:50:53,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182239329] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:50:53,351 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:50:53,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 30 [2021-12-06 18:50:53,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459044954] [2021-12-06 18:50:53,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:50:53,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-06 18:50:53,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:53,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-06 18:50:53,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2021-12-06 18:50:53,353 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 30 states have internal predecessors, (83), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:50:53,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:53,409 INFO L93 Difference]: Finished difference Result 160 states and 176 transitions. [2021-12-06 18:50:53,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-06 18:50:53,410 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 30 states have internal predecessors, (83), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 150 [2021-12-06 18:50:53,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:53,411 INFO L225 Difference]: With dead ends: 160 [2021-12-06 18:50:53,411 INFO L226 Difference]: Without dead ends: 104 [2021-12-06 18:50:53,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2021-12-06 18:50:53,412 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 35 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:53,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 120 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-12-06 18:50:53,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2021-12-06 18:50:53,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 98 states have (on average 1.030612244897959) internal successors, (101), 98 states have internal predecessors, (101), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:53,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 107 transitions. [2021-12-06 18:50:53,419 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 107 transitions. Word has length 150 [2021-12-06 18:50:53,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:53,419 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 107 transitions. [2021-12-06 18:50:53,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 30 states have internal predecessors, (83), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 18:50:53,420 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 107 transitions. [2021-12-06 18:50:53,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-06 18:50:53,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:53,421 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 14, 14, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:53,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 18:50:53,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:53,623 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:53,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:53,625 INFO L85 PathProgramCache]: Analyzing trace with hash -794036833, now seen corresponding path program 7 times [2021-12-06 18:50:53,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:53,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927306015] [2021-12-06 18:50:53,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:53,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:53,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 18:50:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 18:50:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-06 18:50:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:53,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2255 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2021-12-06 18:50:53,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:53,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927306015] [2021-12-06 18:50:53,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927306015] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:53,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514683710] [2021-12-06 18:50:53,809 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-06 18:50:53,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:53,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:53,810 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:53,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 18:50:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:53,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 18:50:53,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:54,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2255 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2021-12-06 18:50:54,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:50:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2255 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2021-12-06 18:50:54,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514683710] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:50:54,208 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:50:54,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2021-12-06 18:50:54,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537256613] [2021-12-06 18:50:54,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:50:54,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-06 18:50:54,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:54,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-06 18:50:54,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-12-06 18:50:54,210 INFO L87 Difference]: Start difference. First operand 103 states and 107 transitions. Second operand has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-06 18:50:54,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:54,257 INFO L93 Difference]: Finished difference Result 187 states and 200 transitions. [2021-12-06 18:50:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-06 18:50:54,257 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 168 [2021-12-06 18:50:54,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:54,258 INFO L225 Difference]: With dead ends: 187 [2021-12-06 18:50:54,258 INFO L226 Difference]: Without dead ends: 115 [2021-12-06 18:50:54,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 335 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-12-06 18:50:54,260 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 20 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:54,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 134 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:54,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-12-06 18:50:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-12-06 18:50:54,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 110 states have (on average 1.0272727272727273) internal successors, (113), 110 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:54,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 119 transitions. [2021-12-06 18:50:54,270 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 119 transitions. Word has length 168 [2021-12-06 18:50:54,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:54,270 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 119 transitions. [2021-12-06 18:50:54,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-06 18:50:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 119 transitions. [2021-12-06 18:50:54,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-06 18:50:54,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:54,273 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 20, 20, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:54,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 18:50:54,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 18:50:54,475 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:54,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:54,476 INFO L85 PathProgramCache]: Analyzing trace with hash -784239573, now seen corresponding path program 8 times [2021-12-06 18:50:54,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:54,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909956362] [2021-12-06 18:50:54,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:54,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:54,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 18:50:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:54,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 18:50:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:54,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 18:50:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:54,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 0 proven. 1044 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2021-12-06 18:50:54,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:54,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909956362] [2021-12-06 18:50:54,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909956362] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:54,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608787806] [2021-12-06 18:50:54,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 18:50:54,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:54,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:54,740 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:54,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 18:50:54,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 18:50:54,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:50:54,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 18:50:54,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:55,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 844 proven. 196 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2021-12-06 18:50:55,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:50:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 0 proven. 1044 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2021-12-06 18:50:55,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608787806] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:50:55,191 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:50:55,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 22 [2021-12-06 18:50:55,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925263069] [2021-12-06 18:50:55,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:50:55,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 18:50:55,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:55,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 18:50:55,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-12-06 18:50:55,193 INFO L87 Difference]: Start difference. First operand 115 states and 119 transitions. Second operand has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 18:50:55,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:55,227 INFO L93 Difference]: Finished difference Result 198 states and 213 transitions. [2021-12-06 18:50:55,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-06 18:50:55,228 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 180 [2021-12-06 18:50:55,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:55,229 INFO L225 Difference]: With dead ends: 198 [2021-12-06 18:50:55,229 INFO L226 Difference]: Without dead ends: 127 [2021-12-06 18:50:55,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 360 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-12-06 18:50:55,230 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 20 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:55,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 90 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:55,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-12-06 18:50:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-12-06 18:50:55,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 122 states have (on average 1.0245901639344261) internal successors, (125), 122 states have internal predecessors, (125), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:55,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 131 transitions. [2021-12-06 18:50:55,237 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 131 transitions. Word has length 180 [2021-12-06 18:50:55,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:55,237 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 131 transitions. [2021-12-06 18:50:55,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 18:50:55,237 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 131 transitions. [2021-12-06 18:50:55,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-12-06 18:50:55,238 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:55,238 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 20, 20, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:55,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-06 18:50:55,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:55,440 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:55,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:55,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1743923041, now seen corresponding path program 9 times [2021-12-06 18:50:55,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:55,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708354105] [2021-12-06 18:50:55,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:55,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:55,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 18:50:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:55,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 18:50:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:55,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 18:50:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:55,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 4135 trivial. 0 not checked. [2021-12-06 18:50:55,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:55,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708354105] [2021-12-06 18:50:55,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708354105] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:50:55,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697791983] [2021-12-06 18:50:55,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 18:50:55,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:50:55,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:50:55,726 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:50:55,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 18:50:58,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-12-06 18:50:58,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:50:58,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 18:50:58,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:58,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 1690 proven. 196 refuted. 0 times theorem prover too weak. 2445 trivial. 0 not checked. [2021-12-06 18:50:58,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:50:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 4135 trivial. 0 not checked. [2021-12-06 18:50:59,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697791983] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:50:59,081 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:50:59,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 22 [2021-12-06 18:50:59,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662380108] [2021-12-06 18:50:59,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:50:59,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 18:50:59,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:59,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 18:50:59,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-12-06 18:50:59,083 INFO L87 Difference]: Start difference. First operand 127 states and 131 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 18:50:59,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:59,117 INFO L93 Difference]: Finished difference Result 188 states and 197 transitions. [2021-12-06 18:50:59,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-06 18:50:59,117 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 216 [2021-12-06 18:50:59,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:59,119 INFO L225 Difference]: With dead ends: 188 [2021-12-06 18:50:59,119 INFO L226 Difference]: Without dead ends: 137 [2021-12-06 18:50:59,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-12-06 18:50:59,120 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:59,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 108 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-06 18:50:59,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-12-06 18:50:59,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 132 states have (on average 1.0227272727272727) internal successors, (135), 132 states have internal predecessors, (135), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 18:50:59,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 141 transitions. [2021-12-06 18:50:59,128 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 141 transitions. Word has length 216 [2021-12-06 18:50:59,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:59,129 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 141 transitions. [2021-12-06 18:50:59,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 18:50:59,129 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 141 transitions. [2021-12-06 18:50:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-06 18:50:59,131 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:59,131 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 20, 20, 19, 19, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:59,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-06 18:50:59,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 18:50:59,332 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:59,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:59,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1352255541, now seen corresponding path program 10 times [2021-12-06 18:50:59,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:59,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794459590] [2021-12-06 18:50:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:59,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:03,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 18:52:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:21,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 18:52:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 18:52:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:00,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4496 backedges. 10 proven. 4428 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-06 18:53:00,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:53:00,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794459590] [2021-12-06 18:53:00,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794459590] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:53:00,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621564204] [2021-12-06 18:53:00,556 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 18:53:00,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:53:00,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:53:00,557 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:53:00,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120c05fc-c573-4f90-9c2d-1b49d5685371/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-06 18:53:00,745 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 18:53:00,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:53:00,754 WARN L261 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 460 conjunts are in the unsatisfiable core [2021-12-06 18:53:00,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:53:06,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 18:58:06,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 18:58:06,847 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 18:58:06,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 9973 treesize of output 2816 [2021-12-06 18:59:11,687 WARN L860 $PredicateComparison]: unable to prove that (exists ((avg_~i~0 Int)) (and (or (exists ((|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202_801| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse26 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse27 (* avg_~i~0 4))) (let ((.cse24 (select .cse26 .cse27)) (.cse6 (select .cse26 (+ (- 12) .cse27))) (.cse12 (select .cse26 40)) (.cse22 (select .cse26 4)) (.cse8 (select .cse26 28)) (.cse7 (select .cse26 12)) (.cse10 (select .cse26 (+ (- 4) .cse27))) (.cse15 (select .cse26 20)) (.cse20 (select .cse26 32)) (.cse14 (select .cse26 16)) (.cse25 (select .cse26 (+ (- 16) .cse27))) (.cse19 (select .cse26 24)) (.cse16 (select .cse26 36)) (.cse17 (select .cse26 8)) (.cse18 (select .cse26 (+ .cse27 (- 8)))) (.cse9 (select .cse26 44)) (.cse21 (select .cse26 (+ (- 20) .cse27))) (.cse23 (select .cse26 (+ .cse27 (- 24)))) (.cse11 (select .cse26 (+ (- 28) .cse27))) (.cse13 (select .cse26 0))) (let ((.cse4 (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966|)) (.cse5 (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202|)) (.cse3 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879|)) (.cse0 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202_801|)) (.cse2 (div (+ .cse24 .cse6 .cse12 .cse22 .cse8 .cse7 .cse10 (- 85899345920) .cse15 .cse20 .cse14 .cse25 .cse19 .cse16 .cse17 .cse18 .cse9 .cse21 .cse23 .cse11 .cse13) 20)) (.cse1 (div (+ (* .cse6 (- 1)) (* .cse7 (- 1)) (* .cse8 (- 1)) (* .cse9 (- 1)) (* .cse10 (- 1)) 85899345920 (* .cse11 (- 1)) (* .cse12 (- 1)) (* .cse13 (- 1)) (* .cse14 (- 1)) (* .cse15 (- 1)) (* .cse16 (- 1)) (* .cse17 (- 1)) (* .cse18 (- 1)) (* .cse19 (- 1)) (* .cse20 (- 1)) (* .cse21 (- 1)) (* .cse22 (- 1)) (* .cse23 (- 1)) (* .cse24 (- 1)) (* .cse25 (- 1))) (- 20)))) (and (<= (+ .cse0 .cse1) (+ .cse2 .cse3)) (< |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879| (+ (div (+ 2147483649 .cse2) 4294967296) |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202| 1)) (<= (+ .cse0 .cse4) (+ .cse2 2147483648)) (<= (+ .cse5 .cse4) 2147483646) (<= (+ 2 .cse5 .cse1) .cse3) (< .cse1 .cse3) (<= .cse0 (+ .cse2 4294967296)) (< (div (+ (- 1) (* .cse1 (- 1))) (- 4294967296)) (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966_202_801| |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_966| 1))))))) (exists ((|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789_1506| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse71 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse72 (* avg_~i~0 4))) (let ((.cse58 (select .cse71 (+ (- 16) .cse72))) (.cse48 (select .cse71 .cse72)) (.cse65 (select .cse71 (+ .cse72 (- 24)))) (.cse51 (select .cse71 4)) (.cse64 (select .cse71 (+ (- 20) .cse72))) (.cse56 (select .cse71 32)) (.cse59 (select .cse71 24)) (.cse62 (select .cse71 (+ .cse72 (- 8)))) (.cse61 (select .cse71 8)) (.cse60 (select .cse71 36)) (.cse55 (select .cse71 20)) (.cse57 (select .cse71 16)) (.cse67 (select .cse71 0)) (.cse50 (select .cse71 40)) (.cse66 (select .cse71 (+ (- 28) .cse72))) (.cse54 (select .cse71 (+ (- 4) .cse72))) (.cse63 (select .cse71 44)) (.cse52 (select .cse71 28)) (.cse53 (select .cse71 12)) (.cse49 (select .cse71 (+ (- 12) .cse72)))) (let ((.cse28 (* .cse49 (- 1))) (.cse29 (* .cse53 (- 1))) (.cse30 (* .cse52 (- 1))) (.cse31 (* .cse63 (- 1))) (.cse32 (* .cse54 (- 1))) (.cse33 (* .cse66 (- 1))) (.cse34 (* .cse50 (- 1))) (.cse35 (* .cse67 (- 1))) (.cse36 (* .cse57 (- 1))) (.cse37 (* .cse55 (- 1))) (.cse38 (* .cse60 (- 1))) (.cse39 (* .cse61 (- 1))) (.cse40 (* .cse62 (- 1))) (.cse41 (* .cse59 (- 1))) (.cse42 (* .cse56 (- 1))) (.cse43 (* .cse64 (- 1))) (.cse44 (* .cse51 (- 1))) (.cse45 (* .cse65 (- 1))) (.cse46 (* .cse48 (- 1))) (.cse47 (* .cse58 (- 1)))) (let ((.cse69 (div (+ .cse48 .cse49 .cse50 .cse51 .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse58 .cse59 .cse60 .cse61 .cse62 20 .cse63 .cse64 .cse65 .cse66 .cse67) 20)) (.cse70 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88|)) (.cse68 (div (+ .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 19 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse46 .cse47) (- 20)))) (and (< (div (+ .cse28 .cse29 .cse30 .cse31 (- 1) .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse46 .cse47) (- 20)) (+ (div (+ .cse48 .cse49 19 .cse50 .cse51 .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse58 .cse59 .cse60 .cse61 .cse62 .cse63 .cse64 .cse65 .cse66 .cse67) 20) 1)) (< (div (+ 4294967295 (* .cse68 (- 1))) (- 4294967296)) (div .cse69 4294967296)) (<= .cse70 2147483647) (< (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789|) (+ 2147483649 .cse69 .cse70)) (< .cse68 (+ 4294967295 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789_1506|))) (< (+ .cse48 .cse49 .cse50 .cse51 .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse58 .cse59 .cse60 .cse61 .cse62 .cse63 .cse64 .cse65 .cse66 .cse67) 0) (< |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789_1506| (+ |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_171_789| 1)))))))) (exists ((|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964| Int) (|aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse115 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse116 (* avg_~i~0 4))) (let ((.cse104 (select .cse115 (+ (- 16) .cse116))) (.cse94 (select .cse115 .cse116)) (.cse111 (select .cse115 (+ .cse116 (- 24)))) (.cse97 (select .cse115 4)) (.cse110 (select .cse115 (+ (- 20) .cse116))) (.cse102 (select .cse115 32)) (.cse105 (select .cse115 24)) (.cse108 (select .cse115 (+ .cse116 (- 8)))) (.cse107 (select .cse115 8)) (.cse106 (select .cse115 36)) (.cse101 (select .cse115 20)) (.cse103 (select .cse115 16)) (.cse113 (select .cse115 0)) (.cse96 (select .cse115 40)) (.cse112 (select .cse115 (+ (- 28) .cse116))) (.cse100 (select .cse115 (+ (- 4) .cse116))) (.cse109 (select .cse115 44)) (.cse98 (select .cse115 28)) (.cse99 (select .cse115 12)) (.cse95 (select .cse115 (+ (- 12) .cse116)))) (let ((.cse93 (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964|)) (.cse73 (* .cse95 (- 1))) (.cse74 (* .cse99 (- 1))) (.cse75 (* .cse98 (- 1))) (.cse76 (* .cse109 (- 1))) (.cse77 (* .cse100 (- 1))) (.cse78 (* .cse112 (- 1))) (.cse79 (* .cse96 (- 1))) (.cse80 (* .cse113 (- 1))) (.cse81 (* .cse103 (- 1))) (.cse82 (* .cse101 (- 1))) (.cse83 (* .cse106 (- 1))) (.cse84 (* .cse107 (- 1))) (.cse85 (* .cse108 (- 1))) (.cse86 (* .cse105 (- 1))) (.cse87 (* .cse102 (- 1))) (.cse88 (* .cse110 (- 1))) (.cse89 (* .cse97 (- 1))) (.cse90 (* .cse111 (- 1))) (.cse91 (* .cse94 (- 1))) (.cse92 (* .cse104 (- 1))) (.cse114 (div (+ .cse94 (* |aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964| (- 20)) .cse95 .cse96 .cse97 (- 42949672960) .cse98 .cse99 .cse100 .cse101 .cse102 .cse103 .cse104 .cse105 .cse106 .cse107 .cse108 .cse109 .cse110 .cse111 .cse112 .cse113 (* |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964| (- 85899345920))) 85899345920))) (and (<= (div (+ .cse73 .cse74 .cse75 .cse76 (- 1) .cse77 .cse78 .cse79 .cse80 .cse81 .cse82 .cse83 .cse84 .cse85 .cse86 .cse87 .cse88 .cse89 .cse90 .cse91 .cse92) (- 20)) (+ 2147483649 .cse93 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884|) |aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964|)) (<= 0 (+ .cse94 .cse95 .cse96 .cse97 .cse98 .cse99 .cse100 .cse101 .cse102 .cse103 .cse104 .cse105 .cse106 .cse107 .cse108 .cse109 .cse110 .cse111 .cse112 .cse113)) (<= 0 (+ .cse93 2147483648 |aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964|)) (< |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884| (+ .cse114 1)) (< (+ .cse93 |aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964|) 2147483648) (< (div (+ 4294967295 (* (div (+ .cse73 .cse74 .cse75 .cse76 .cse77 .cse78 19 .cse79 .cse80 .cse81 .cse82 .cse83 .cse84 .cse85 .cse86 .cse87 .cse88 .cse89 .cse90 .cse91 .cse92) (- 20)) (- 1))) (- 4294967296)) (+ .cse114 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964| 1)) (<= 0 |aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_884_964|)))))) (exists ((|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970_183_802| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse140 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse141 (* avg_~i~0 4))) (let ((.cse121 (select .cse140 (+ (- 12) .cse141))) (.cse125 (select .cse140 12)) (.cse124 (select .cse140 28)) (.cse135 (select .cse140 44)) (.cse126 (select .cse140 (+ (- 4) .cse141))) (.cse138 (select .cse140 (+ (- 28) .cse141))) (.cse122 (select .cse140 40)) (.cse139 (select .cse140 0)) (.cse129 (select .cse140 16)) (.cse127 (select .cse140 20)) (.cse132 (select .cse140 36)) (.cse133 (select .cse140 8)) (.cse134 (select .cse140 (+ .cse141 (- 8)))) (.cse131 (select .cse140 24)) (.cse128 (select .cse140 32)) (.cse136 (select .cse140 (+ (- 20) .cse141))) (.cse123 (select .cse140 4)) (.cse137 (select .cse140 (+ .cse141 (- 24)))) (.cse120 (select .cse140 .cse141)) (.cse130 (select .cse140 (+ (- 16) .cse141)))) (let ((.cse117 (div (+ (* .cse121 (- 1)) (* .cse125 (- 1)) (* .cse124 (- 1)) (* .cse135 (- 1)) (* .cse126 (- 1)) (* .cse138 (- 1)) (* .cse122 (- 1)) (* .cse139 (- 1)) (* .cse129 (- 1)) (* .cse127 (- 1)) (* .cse132 (- 1)) (* .cse133 (- 1)) (* .cse134 (- 1)) (* .cse131 (- 1)) (* .cse128 (- 1)) (* .cse136 (- 1)) (* .cse123 (- 1)) (* .cse137 (- 1)) (* .cse120 (- 1)) (* .cse130 (- 1))) (- 20))) (.cse118 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867|)) (.cse119 (div (+ .cse120 .cse121 .cse122 .cse123 .cse124 .cse125 .cse126 .cse127 .cse128 .cse129 .cse130 .cse131 .cse132 .cse133 .cse134 .cse135 .cse136 .cse137 .cse138 .cse139) 20))) (and (< |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867| (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970_183_802| 1)) (<= (+ (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970|) .cse117) (+ .cse118 2147483646)) (< .cse117 (+ .cse118 4294967296)) (<= (+ (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970_183_802|) .cse117) (+ .cse119 .cse118)) (< |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867| (+ |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970| (div .cse119 4294967296) 1)) (< |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_867_970| 1)))))) (exists ((|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794_217| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448| Int)) (let ((.cse168 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse169 (* avg_~i~0 4))) (let ((.cse166 (select .cse168 .cse169)) (.cse148 (select .cse168 (+ (- 12) .cse169))) (.cse154 (select .cse168 40)) (.cse164 (select .cse168 4)) (.cse150 (select .cse168 28)) (.cse149 (select .cse168 12)) (.cse152 (select .cse168 (+ (- 4) .cse169))) (.cse157 (select .cse168 20)) (.cse162 (select .cse168 32)) (.cse156 (select .cse168 16)) (.cse167 (select .cse168 (+ (- 16) .cse169))) (.cse161 (select .cse168 24)) (.cse158 (select .cse168 36)) (.cse159 (select .cse168 8)) (.cse160 (select .cse168 (+ .cse169 (- 8)))) (.cse151 (select .cse168 44)) (.cse163 (select .cse168 (+ (- 20) .cse169))) (.cse165 (select .cse168 (+ .cse169 (- 24)))) (.cse153 (select .cse168 (+ (- 28) .cse169))) (.cse155 (select .cse168 0))) (let ((.cse143 (+ .cse166 .cse148 .cse154 .cse164 .cse150 .cse149 .cse152 .cse157 .cse162 .cse156 .cse167 .cse161 .cse158 .cse159 .cse160 .cse151 .cse163 .cse165 .cse153 .cse155))) (let ((.cse144 (div (+ (* .cse148 (- 1)) (* .cse149 (- 1)) (* .cse150 (- 1)) (* .cse151 (- 1)) (- 1) (* .cse152 (- 1)) (* .cse153 (- 1)) (* .cse154 (- 1)) (* .cse155 (- 1)) (* .cse156 (- 1)) (* .cse157 (- 1)) (* .cse158 (- 1)) (* .cse159 (- 1)) (* .cse160 (- 1)) (* .cse161 (- 1)) (* .cse162 (- 1)) (* .cse163 (- 1)) (* .cse164 (- 1)) (* .cse165 (- 1)) (* .cse166 (- 1)) (* .cse167 (- 1))) (- 20))) (.cse146 (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448|)) (.cse142 (div .cse143 20)) (.cse147 (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794|)) (.cse145 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794_217|))) (and (< (+ |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875| |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794_217|) (+ (div .cse142 4294967296) 1)) (<= 0 .cse143) (<= .cse144 (+ .cse145 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875|) 2147483648)) (< (+ .cse145 .cse146) (+ 2147483649 .cse142)) (< (+ (div (+ (* .cse144 (- 1)) 4294967295) (- 4294967296)) |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_794|) (+ 1 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448|)) (<= (+ 2147483647 .cse146) (+ .cse142 .cse147)) (< 0 (+ 2147483649 .cse147)) (<= 0 (+ .cse145 2147483647)))))))) (exists ((|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780_1506| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse214 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse215 (* avg_~i~0 4))) (let ((.cse202 (select .cse214 (+ (- 16) .cse215))) (.cse192 (select .cse214 .cse215)) (.cse209 (select .cse214 (+ .cse215 (- 24)))) (.cse195 (select .cse214 4)) (.cse208 (select .cse214 (+ (- 20) .cse215))) (.cse200 (select .cse214 32)) (.cse203 (select .cse214 24)) (.cse206 (select .cse214 (+ .cse215 (- 8)))) (.cse205 (select .cse214 8)) (.cse204 (select .cse214 36)) (.cse199 (select .cse214 20)) (.cse201 (select .cse214 16)) (.cse211 (select .cse214 0)) (.cse194 (select .cse214 40)) (.cse210 (select .cse214 (+ (- 28) .cse215))) (.cse198 (select .cse214 (+ (- 4) .cse215))) (.cse207 (select .cse214 44)) (.cse196 (select .cse214 28)) (.cse197 (select .cse214 12)) (.cse193 (select .cse214 (+ (- 12) .cse215)))) (let ((.cse172 (* .cse193 (- 1))) (.cse173 (* .cse197 (- 1))) (.cse174 (* .cse196 (- 1))) (.cse175 (* .cse207 (- 1))) (.cse176 (* .cse198 (- 1))) (.cse177 (* .cse210 (- 1))) (.cse178 (* .cse194 (- 1))) (.cse179 (* .cse211 (- 1))) (.cse180 (* .cse201 (- 1))) (.cse181 (* .cse199 (- 1))) (.cse182 (* .cse204 (- 1))) (.cse183 (* .cse205 (- 1))) (.cse184 (* .cse206 (- 1))) (.cse185 (* .cse203 (- 1))) (.cse186 (* .cse200 (- 1))) (.cse187 (* .cse208 (- 1))) (.cse188 (* .cse195 (- 1))) (.cse189 (* .cse209 (- 1))) (.cse190 (* .cse192 (- 1))) (.cse191 (* .cse202 (- 1)))) (let ((.cse213 (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780|)) (.cse212 (div (+ .cse192 .cse193 .cse194 .cse195 .cse196 .cse197 .cse198 .cse199 .cse200 .cse201 .cse202 .cse203 .cse204 .cse205 .cse206 20 .cse207 .cse208 .cse209 .cse210 .cse211) 20)) (.cse170 (div (+ .cse172 .cse173 .cse174 .cse175 .cse176 .cse177 19 .cse178 .cse179 .cse180 .cse181 .cse182 .cse183 .cse184 .cse185 .cse186 .cse187 .cse188 .cse189 .cse190 .cse191) (- 20))) (.cse171 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780_1506|))) (and (<= (+ (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88|) .cse170) (+ .cse171 2147483646)) (< (div (+ .cse172 .cse173 .cse174 .cse175 (- 1) .cse176 .cse177 .cse178 .cse179 .cse180 .cse181 .cse182 .cse183 .cse184 .cse185 .cse186 .cse187 .cse188 .cse189 .cse190 .cse191) (- 20)) (+ (div (+ .cse192 .cse193 19 .cse194 .cse195 .cse196 .cse197 .cse198 .cse199 .cse200 .cse201 .cse202 .cse203 .cse204 .cse205 .cse206 .cse207 .cse208 .cse209 .cse210 .cse211) 20) 1)) (< (div (+ 2147483647 (* .cse170 (- 1))) (- 4294967296)) (+ |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88| (div .cse212 4294967296) |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176| 1)) (<= (+ (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176|) .cse213 1) .cse212) (< (+ .cse192 .cse193 .cse194 .cse195 .cse196 .cse197 .cse198 .cse199 .cse200 .cse201 .cse202 .cse203 .cse204 .cse205 .cse206 .cse207 .cse208 .cse209 .cse210 .cse211) 0) (<= .cse213 .cse212) (< .cse170 (+ .cse171 4294967295)) (< |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780_1506| (+ |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_88_176_780| 1)))))))) (exists ((|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448| Int)) (let ((.cse241 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse242 (* avg_~i~0 4))) (let ((.cse222 (select .cse241 (+ (- 12) .cse242))) (.cse226 (select .cse241 12)) (.cse225 (select .cse241 28)) (.cse236 (select .cse241 44)) (.cse227 (select .cse241 (+ (- 4) .cse242))) (.cse239 (select .cse241 (+ (- 28) .cse242))) (.cse223 (select .cse241 40)) (.cse240 (select .cse241 0)) (.cse230 (select .cse241 16)) (.cse228 (select .cse241 20)) (.cse233 (select .cse241 36)) (.cse234 (select .cse241 8)) (.cse235 (select .cse241 (+ .cse242 (- 8)))) (.cse232 (select .cse241 24)) (.cse229 (select .cse241 32)) (.cse237 (select .cse241 (+ (- 20) .cse242))) (.cse224 (select .cse241 4)) (.cse238 (select .cse241 (+ .cse242 (- 24)))) (.cse221 (select .cse241 .cse242)) (.cse231 (select .cse241 (+ (- 16) .cse242)))) (let ((.cse220 (div (+ (* .cse222 (- 1)) (* .cse226 (- 1)) (* .cse225 (- 1)) (* .cse236 (- 1)) (- 1) (* .cse227 (- 1)) (* .cse239 (- 1)) (* .cse223 (- 1)) (* .cse240 (- 1)) (* .cse230 (- 1)) (* .cse228 (- 1)) (* .cse233 (- 1)) (* .cse234 (- 1)) (* .cse235 (- 1)) (* .cse232 (- 1)) (* .cse229 (- 1)) (* .cse237 (- 1)) (* .cse224 (- 1)) (* .cse238 (- 1)) (* .cse221 (- 1)) (* .cse231 (- 1))) (- 20))) (.cse216 (+ .cse221 .cse222 .cse223 .cse224 .cse225 .cse226 .cse227 .cse228 .cse229 .cse230 .cse231 .cse232 .cse233 .cse234 .cse235 .cse236 .cse237 .cse238 .cse239 .cse240))) (and (<= 0 .cse216) (exists ((|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_781| Int)) (let ((.cse217 (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448_781|))) (and (< .cse217 4294967295) (<= (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448|) (+ (div (let ((.cse219 (* avg_~i~0 4)) (.cse218 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|))) (+ (select .cse218 .cse219) (select .cse218 (+ (- 12) .cse219)) (select .cse218 40) (select .cse218 4) (select .cse218 28) (select .cse218 12) (select .cse218 (+ (- 4) .cse219)) (select .cse218 20) (select .cse218 32) (select .cse218 16) (select .cse218 (+ (- 16) .cse219)) (select .cse218 24) (select .cse218 36) (select .cse218 8) (select .cse218 (+ .cse219 (- 8))) (select .cse218 44) (select .cse218 (+ (- 20) .cse219)) (select .cse218 (+ .cse219 (- 24))) (select .cse218 (+ (- 28) .cse219)) (select .cse218 0))) 20) 1 .cse217))))) (< |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875| (+ 1 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875_1448|)) (< .cse220 (+ 4294967297 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_875|))) (< (div (+ (* .cse220 (- 1)) 2147483647) (- 4294967296)) (+ (div (div .cse216 20) 4294967296) 1))))))) (exists ((|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512_1546| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse269 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse270 (* avg_~i~0 4))) (let ((.cse250 (select .cse269 (+ (- 12) .cse270))) (.cse254 (select .cse269 12)) (.cse253 (select .cse269 28)) (.cse264 (select .cse269 44)) (.cse255 (select .cse269 (+ (- 4) .cse270))) (.cse267 (select .cse269 (+ (- 28) .cse270))) (.cse251 (select .cse269 40)) (.cse268 (select .cse269 0)) (.cse258 (select .cse269 16)) (.cse256 (select .cse269 20)) (.cse261 (select .cse269 36)) (.cse262 (select .cse269 8)) (.cse263 (select .cse269 (+ .cse270 (- 8)))) (.cse260 (select .cse269 24)) (.cse257 (select .cse269 32)) (.cse265 (select .cse269 (+ (- 20) .cse270))) (.cse252 (select .cse269 4)) (.cse266 (select .cse269 (+ .cse270 (- 24)))) (.cse249 (select .cse269 .cse270)) (.cse259 (select .cse269 (+ (- 16) .cse270)))) (let ((.cse245 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024|)) (.cse244 (div (+ (* .cse250 (- 1)) (* .cse254 (- 1)) (* .cse253 (- 1)) (* .cse264 (- 1)) (* .cse255 (- 1)) (* .cse267 (- 1)) (* .cse251 (- 1)) (* .cse268 (- 1)) (* .cse258 (- 1)) (* .cse256 (- 1)) (* .cse261 (- 1)) (* .cse262 (- 1)) (* .cse263 (- 1)) (* .cse260 (- 1)) (* .cse257 (- 1)) (* .cse265 (- 1)) (* .cse252 (- 1)) (* .cse266 (- 1)) (* .cse249 (- 1)) (* .cse259 (- 1))) (- 20))) (.cse247 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512_1546|)) (.cse243 (div (+ .cse249 .cse250 .cse251 .cse252 .cse253 .cse254 .cse255 .cse256 .cse257 .cse258 .cse259 .cse260 .cse261 .cse262 .cse263 .cse264 .cse265 .cse266 .cse267 .cse268) 20)) (.cse246 (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165|)) (.cse248 (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512|))) (and (< |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512_1546| (+ |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024_1512| 1)) (< (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165_190_1024| |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86| |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86_165|) (+ (div .cse243 4294967296) 1)) (<= .cse244 (+ 2147483647 .cse245 .cse246)) (< .cse247 (+ .cse245 4294967296)) (< .cse244 (+ .cse247 4294967296)) (<= (+ 2147483647 .cse248) (+ .cse243 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_86|))) (< .cse243 (+ .cse246 .cse248 6442450943))))))) (exists ((|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_986_786| Int) (|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int)) (let ((.cse293 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse294 (* avg_~i~0 4))) (let ((.cse291 (select .cse293 .cse294)) (.cse273 (select .cse293 (+ (- 12) .cse294))) (.cse279 (select .cse293 40)) (.cse289 (select .cse293 4)) (.cse275 (select .cse293 28)) (.cse274 (select .cse293 12)) (.cse277 (select .cse293 (+ (- 4) .cse294))) (.cse282 (select .cse293 20)) (.cse287 (select .cse293 32)) (.cse281 (select .cse293 16)) (.cse292 (select .cse293 (+ (- 16) .cse294))) (.cse286 (select .cse293 24)) (.cse283 (select .cse293 36)) (.cse284 (select .cse293 8)) (.cse285 (select .cse293 (+ .cse294 (- 8)))) (.cse276 (select .cse293 44)) (.cse288 (select .cse293 (+ (- 20) .cse294))) (.cse290 (select .cse293 (+ .cse294 (- 24)))) (.cse278 (select .cse293 (+ (- 28) .cse294))) (.cse280 (select .cse293 0))) (let ((.cse272 (div (+ .cse291 .cse273 .cse279 .cse289 .cse275 .cse274 .cse277 (- 85899345920) .cse282 .cse287 .cse281 .cse292 .cse286 .cse283 .cse284 .cse285 .cse276 .cse288 .cse290 .cse278 .cse280) 20)) (.cse271 (div (+ (* .cse273 (- 1)) (* .cse274 (- 1)) (* .cse275 (- 1)) (* .cse276 (- 1)) (* .cse277 (- 1)) 85899345920 (* .cse278 (- 1)) (* .cse279 (- 1)) (* .cse280 (- 1)) (* .cse281 (- 1)) (* .cse282 (- 1)) (* .cse283 (- 1)) (* .cse284 (- 1)) (* .cse285 (- 1)) (* .cse286 (- 1)) (* .cse287 (- 1)) (* .cse288 (- 1)) (* .cse289 (- 1)) (* .cse290 (- 1)) (* .cse291 (- 1)) (* .cse292 (- 1))) (- 20)))) (and (< (+ (div (+ (- 1) (* .cse271 (- 1))) (- 4294967296)) |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879|) (+ (div (+ .cse272 4294967297) 4294967296) |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_986_786|)) (<= (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879_986_786|) (+ .cse272 4294967296)) (< .cse271 (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_879|))))))) (exists ((|v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1| Int) (|aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674_1451| Int) (|aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674| Int)) (let ((.cse336 (select |c_#memory_int| |v_ULTIMATE.start_main_~#x~0#1.base_BEFORE_CALL_1|)) (.cse337 (* avg_~i~0 4))) (let ((.cse326 (select .cse336 (+ (- 16) .cse337))) (.cse316 (select .cse336 .cse337)) (.cse333 (select .cse336 (+ .cse337 (- 24)))) (.cse319 (select .cse336 4)) (.cse332 (select .cse336 (+ (- 20) .cse337))) (.cse324 (select .cse336 32)) (.cse327 (select .cse336 24)) (.cse330 (select .cse336 (+ .cse337 (- 8)))) (.cse329 (select .cse336 8)) (.cse328 (select .cse336 36)) (.cse323 (select .cse336 20)) (.cse325 (select .cse336 16)) (.cse335 (select .cse336 0)) (.cse318 (select .cse336 40)) (.cse334 (select .cse336 (+ (- 28) .cse337))) (.cse322 (select .cse336 (+ (- 4) .cse337))) (.cse331 (select .cse336 44)) (.cse320 (select .cse336 28)) (.cse321 (select .cse336 12)) (.cse317 (select .cse336 (+ (- 12) .cse337)))) (let ((.cse296 (* .cse317 (- 1))) (.cse297 (* .cse321 (- 1))) (.cse298 (* .cse320 (- 1))) (.cse299 (* .cse331 (- 1))) (.cse300 (* .cse322 (- 1))) (.cse301 (* .cse334 (- 1))) (.cse302 (* .cse318 (- 1))) (.cse303 (* .cse335 (- 1))) (.cse304 (* .cse325 (- 1))) (.cse305 (* .cse323 (- 1))) (.cse306 (* .cse328 (- 1))) (.cse307 (* .cse329 (- 1))) (.cse308 (* .cse330 (- 1))) (.cse309 (* .cse327 (- 1))) (.cse310 (* .cse324 (- 1))) (.cse311 (* .cse332 (- 1))) (.cse312 (* .cse319 (- 1))) (.cse313 (* .cse333 (- 1))) (.cse314 (* .cse316 (- 1))) (.cse315 (* .cse326 (- 1))) (.cse295 (+ .cse316 .cse317 .cse318 .cse319 .cse320 .cse321 .cse322 .cse323 .cse324 .cse325 .cse326 .cse327 .cse328 .cse329 .cse330 .cse331 .cse332 .cse333 .cse334 .cse335))) (and (< |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674_1451| (+ |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674| 1)) (<= (* 4294967296 |aux_div_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674|) (+ (div .cse295 20) 1)) (< (div (+ (* (div (+ .cse296 .cse297 .cse298 .cse299 (- 1) .cse300 .cse301 .cse302 .cse303 .cse304 .cse305 .cse306 .cse307 .cse308 .cse309 .cse310 .cse311 .cse312 .cse313 .cse314 .cse315) (- 20)) (- 1)) 4294967295) (- 4294967296)) (+ (div (+ (div (+ .cse316 .cse317 .cse318 .cse319 .cse320 .cse321 .cse322 .cse323 .cse324 .cse325 .cse326 .cse327 .cse328 .cse329 .cse330 .cse331 (- 85899345900) .cse332 .cse333 .cse334 .cse335) 20) 2147483648) 4294967296) 1)) (< (div (+ .cse296 .cse297 .cse298 .cse299 .cse300 .cse301 .cse302 .cse303 .cse304 .cse305 .cse306 .cse307 .cse308 .cse309 .cse310 .cse311 .cse312 85899345919 .cse313 .cse314 .cse315) (- 20)) (+ (div (+ .cse316 .cse317 .cse318 .cse319 .cse320 .cse321 .cse322 .cse323 .cse324 .cse325 .cse326 .cse327 .cse328 .cse329 .cse330 (- 85899345901) .cse331 .cse332 .cse333 .cse334 .cse335) 20) 1)) (< (div (+ .cse296 .cse297 .cse298 .cse299 .cse300 .cse301 19 .cse302 .cse303 .cse304 .cse305 .cse306 .cse307 .cse308 .cse309 .cse310 .cse311 .cse312 .cse313 .cse314 .cse315) (- 20)) (+ 4294967295 (* 4294967296 |aux_div_aux_mod_v_ULTIMATE.start_main_~ret~1#1_BEFORE_CALL_1_674_1451|))) (< .cse295 0))))))) (<= 19 avg_~i~0) (<= avg_~i~0 19))) is different from true